Update docs output for 2.0.0

* Bump version to 2.0.0; bump dependencies versions

* Make v2 docs the primary docs; jettison the v1 docs’ source: whenever the v1 docs need to be rebuild in the future, that can be done on the `1` branch and copied over; simplify folder tree

* Updated v1 docs that reflect that v2 is out and have updated paths to reflect that the v2 docs are now the primary docs, and the v1 docs only live under /v1/

* Add Google Analytics; track navigation, editing code and running code

* 2.0.0 changelog

* Fix link to root docs

* No more @next; installing local copy should be --save-dev

* Analytics on the browser-based tests page should prove fascinating . . .

* Update annotated source

* Add note to changelog clarifying scope

.babelrc

@@ -0,0 +1,3 @@
+{
+  "presets": ["env"]
+}

.gitignore

@@ -8,3 +8,4 @@ test/*.js
 parser.output
 /node_modules
 npm-debug.log*
+yarn.lock

.travis.yml

@@ -0,0 +1,18 @@
+language: node_js
+
+node_js:
+  - 6
+  - 8
+
+cache:
+  directories:
+    - node_modules
+
+script:
+  - node ./bin/cake build:except-parser
+  - node ./bin/cake build:parser
+  - node ./bin/cake build:full
+  - node ./bin/cake build:browser
+  - node ./bin/cake test
+  - node ./bin/cake test:browser
+  - node ./bin/cake test:integrations

CONTRIBUTING.md

@@ -6,4 +6,4 @@
 
 * Use the same coding style as the rest of the [codebase](https://github.com/jashkenas/coffeescript/tree/master/src). If you’re just getting started with CoffeeScript, there’s a nice [style guide](https://github.com/polarmobile/coffeescript-style-guide).
 
-* In your pull request, do not add documentation to `index.html` or re-build the minified `coffeescript.js` file. We’ll do those things before cutting a new release.
+* In your pull request, do not add documentation to `index.html` or re-build the minified `coffeescript.js` file. We’ll do those things before cutting a new release. You _should,_ however, commit the updated compiled JavaScript files in `lib`.

Cakefile

@@ -1,4 +1,5 @@
 fs                        = require 'fs'
+os                        = require 'os'
 path                      = require 'path'
 _                         = require 'underscore'
 { spawn, exec, execSync } = require 'child_process'
@@ -6,12 +7,13 @@ CoffeeScript              = require './lib/coffeescript'
 helpers                   = require './lib/coffeescript/helpers'
 
 # ANSI Terminal Colors.
-bold = red = green = reset = ''
+bold = red = green = yellow = reset = ''
 unless process.env.NODE_DISABLE_COLORS
-  bold  = '\x1B[0;1m'
-  red   = '\x1B[0;31m'
-  green = '\x1B[0;32m'
-  reset = '\x1B[0m'
+  bold   = '\x1B[0;1m'
+  red    = '\x1B[0;31m'
+  green  = '\x1B[0;32m'
+  yellow = '\x1B[0;33m'
+  reset  = '\x1B[0m'
 
 # Built file header.
 header = """
@@ -51,14 +53,8 @@ run = (args, callback) ->
 buildParser = ->
   helpers.extend global, require 'util'
   require 'jison'
-  parser = require('./lib/coffeescript/grammar').parser.generate()
-  # Patch Jison’s output, until https://github.com/zaach/jison/pull/339 is accepted,
-  # to ensure that require('fs') is only called where it exists.
-  parser = parser.replace "var source = require('fs')", """
-      var source = '';
-          var fs = require('fs');
-          if (typeof fs !== 'undefined' && fs !== null)
-              source = fs"""
+  # We don't need `moduleMain`, since the parser is unlikely to be run standalone.
+  parser = require('./lib/coffeescript/grammar').parser.generate(moduleMain: ->)
   fs.writeFileSync 'lib/coffeescript/parser.js', parser
 
 buildExceptParser = (callback) ->
@@ -70,6 +66,20 @@ build = (callback) ->
   buildParser()
   buildExceptParser callback
 
+transpile = (code) ->
+  babel = require 'babel-core'
+  presets = []
+  # Exclude the `modules` plugin in order to not break the `}(this));`
+  # at the end of the `build:browser` code block.
+  presets.push ['env', {modules: no}] unless process.env.TRANSFORM is 'false'
+  presets.push 'minify' unless process.env.MINIFY is 'false'
+  babelOptions =
+    compact: process.env.MINIFY isnt 'false'
+    presets: presets
+    sourceType: 'script'
+  { code } = babel.transform code, babelOptions unless presets.length is 0
+  code
+
 testBuiltCode = (watch = no) ->
   csPath = './lib/coffeescript'
   csDir  = path.dirname require.resolve csPath
@@ -83,7 +93,7 @@ testBuiltCode = (watch = no) ->
 
 buildAndTest = (includingParser = yes, harmony = no) ->
   process.stdout.write '\x1Bc' # Clear terminal screen.
-  execSync 'git checkout lib/*', stdio: [0,1,2] # Reset the generated compiler.
+  execSync 'git checkout lib/*', stdio: 'inherit' # Reset the generated compiler.
 
   buildArgs = ['bin/cake']
   buildArgs.push if includingParser then 'build' else 'build:except-parser'
@@ -116,20 +126,12 @@ task 'build:full', 'build the CoffeeScript compiler from source twice, and run t
   build ->
     build testBuiltCode
 
-task 'build:browser', 'build the merged script for inclusion in the browser', ->
+task 'build:browser', 'merge the built scripts into a single file for use in a browser', ->
   code = """
   require['../../package.json'] = (function() {
     return #{fs.readFileSync "./package.json"};
   })();
   """
-  for {name, src} in [{name: 'marked', src: 'lib/marked.js'}]
-    code += """
-      require['#{name}'] = (function() {
-        var exports = {}, module = {exports: exports};
-        #{fs.readFileSync "node_modules/#{name}/#{src}"}
-        return module.exports;
-      })();
-    """
   for name in ['helpers', 'rewriter', 'lexer', 'parser', 'scope', 'nodes', 'sourcemap', 'coffeescript', 'browser']
     code += """
       require['./#{name}'] = (function() {
@@ -143,7 +145,7 @@ task 'build:browser', 'build the merged script for inclusion in the browser', ->
       var CoffeeScript = function() {
         function require(path){ return require[path]; }
         #{code}
-        return require['./coffeescript'];
+        return require['./browser'];
       }();
 
       if (typeof define === 'function' && define.amd) {
@@ -153,15 +155,13 @@ task 'build:browser', 'build the merged script for inclusion in the browser', ->
       }
     }(this));
   """
-  unless process.env.MINIFY is 'false'
-    {compiledCode: code} = require('google-closure-compiler-js').compile
-      jsCode: [
-        src: code
-        languageOut: if majorVersion is 1 then 'ES5' else 'ES6'
-      ]
+  code = transpile code
   outputFolder = "docs/v#{majorVersion}/browser-compiler"
   fs.mkdirSync outputFolder unless fs.existsSync outputFolder
   fs.writeFileSync "#{outputFolder}/coffeescript.js", header + '\n' + code
+
+task 'build:browser:full', 'merge the built scripts into a single file for use in a browser, and test it', ->
+  invoke 'build:browser'
   console.log "built ... running browser tests:"
   invoke 'test:browser'
 
@@ -174,11 +174,11 @@ task 'build:watch:harmony', 'watch and continually rebuild the CoffeeScript comp
 
 buildDocs = (watch = no) ->
   # Constants
-  indexFile = 'documentation/index.html'
-  versionedSourceFolder = "documentation/v#{majorVersion}"
+  indexFile            = 'documentation/site/index.html'
+  siteSourceFolder     = "documentation/site"
   sectionsSourceFolder = 'documentation/sections'
   examplesSourceFolder = 'documentation/examples'
-  outputFolder = "docs/v#{majorVersion}"
+  outputFolder         = "docs/v#{majorVersion}"
 
   # Helpers
   releaseHeader = (date, version, prevVersion) ->
@@ -196,32 +196,54 @@ buildDocs = (watch = no) ->
       </h2>
     """
 
-  codeFor = require "./documentation/v#{majorVersion}/code.coffee"
+  codeFor = require "./documentation/site/code.coffee"
 
   htmlFor = ->
-    marked = require 'marked'
-    markdownRenderer = new marked.Renderer()
-    markdownRenderer.heading = (text, level) ->
-      "<h#{level}>#{text}</h#{level}>" # Don’t let marked add an id
-    markdownRenderer.code = (code) ->
+    hljs = require 'highlight.js'
+    hljs.configure classPrefix: ''
+    markdownRenderer = require('markdown-it')
+      html: yes
+      typographer: yes
+      highlight: (str, lang) ->
+        # From https://github.com/markdown-it/markdown-it#syntax-highlighting
+        if lang and hljs.getLanguage(lang)
+          try
+            return hljs.highlight(lang, str).value
+          catch ex
+        return '' # No syntax highlighting
+
+
+    # Add some custom overrides to Markdown-It’s rendering, per
+    # https://github.com/markdown-it/markdown-it/blob/master/docs/architecture.md#renderer
+    defaultFence = markdownRenderer.renderer.rules.fence
+    markdownRenderer.renderer.rules.fence = (tokens, idx, options, env, slf) ->
+      code = tokens[idx].content
       if code.indexOf('codeFor(') is 0 or code.indexOf('releaseHeader(') is 0
         "<%= #{code} %>"
       else
-        "<pre><code>#{code}</code></pre>" # Default
+        "<blockquote class=\"uneditable-code-block\">#{defaultFence.apply @, arguments}</blockquote>"
 
     (file, bookmark) ->
       md = fs.readFileSync "#{sectionsSourceFolder}/#{file}.md", 'utf-8'
       md = md.replace /<%= releaseHeader %>/g, releaseHeader
       md = md.replace /<%= majorVersion %>/g, majorVersion
       md = md.replace /<%= fullVersion %>/g, CoffeeScript.VERSION
-      html = marked md, renderer: markdownRenderer
+      html = markdownRenderer.render md
       html = _.template(html)
         codeFor: codeFor()
         releaseHeader: releaseHeader
 
+  includeScript = ->
+    (file) ->
+      file = "#{siteSourceFolder}/#{file}" unless '/' in file
+      code = fs.readFileSync file, 'utf-8'
+      code = CoffeeScript.compile code
+      code = transpile code
+      code
+
   include = ->
     (file) ->
-      file = "#{versionedSourceFolder}/#{file}" if file.indexOf('/') is -1
+      file = "#{siteSourceFolder}/#{file}" unless '/' in file
       output = fs.readFileSync file, 'utf-8'
       if /\.html$/.test(file)
         render = _.template output
@@ -232,6 +254,7 @@ buildDocs = (watch = no) ->
           htmlFor: htmlFor()
           codeFor: codeFor()
           include: include()
+          includeScript: includeScript()
       output
 
   # Task
@@ -246,7 +269,7 @@ buildDocs = (watch = no) ->
   catch exception
 
   if watch
-    for target in [indexFile, versionedSourceFolder, examplesSourceFolder, sectionsSourceFolder]
+    for target in [indexFile, siteSourceFolder, examplesSourceFolder, sectionsSourceFolder]
       fs.watch target, interval: 200, renderIndex
     log 'watching...', green
 
@@ -259,9 +282,9 @@ task 'doc:site:watch', 'watch and continually rebuild the documentation for the
 
 buildDocTests = (watch = no) ->
   # Constants
-  testFile = 'documentation/test.html'
+  testFile          = 'documentation/site/test.html'
   testsSourceFolder = 'test'
-  outputFolder = "docs/v#{majorVersion}"
+  outputFolder      = "docs/v#{majorVersion}"
 
   # Included in test.html
   testHelpers = fs.readFileSync('test/support/helpers.coffee', 'utf-8').replace /exports\./g, '@'
@@ -324,11 +347,15 @@ task 'doc:source:watch', 'watch and continually rebuild the annotated source doc
 
 
 task 'release', 'build and test the CoffeeScript source, and build the documentation', ->
-  invoke 'build:full'
-  invoke 'build:browser'
-  invoke 'doc:site'
-  invoke 'doc:test'
-  invoke 'doc:source'
+  execSync '''
+    cake build:full
+    cake build:browser
+    cake test:browser
+    cake test:integrations
+    cake doc:site
+    cake doc:test
+    cake doc:source''', stdio: 'inherit'
+
 
 task 'bench', 'quick benchmark of compilation time', ->
   {Rewriter} = require './lib/coffeescript/rewriter'
@@ -354,8 +381,7 @@ task 'bench', 'quick benchmark of compilation time', ->
 
 # Run the CoffeeScript test suite.
 runTests = (CoffeeScript) ->
-  CoffeeScript.register()
-  startTime = Date.now()
+  CoffeeScript.register() unless global.testingBrowser
 
   # These are attached to `global` so that they’re accessible from within
   # `test/async.coffee`, which has an async-capable version of
@@ -368,20 +394,42 @@ runTests = (CoffeeScript) ->
 
   # Convenience aliases.
   global.CoffeeScript = CoffeeScript
-  global.Repl = require './lib/coffeescript/repl'
+  global.Repl   = require './lib/coffeescript/repl'
+  global.bold   = bold
+  global.red    = red
+  global.green  = green
+  global.yellow = yellow
+  global.reset  = reset
+
+  asyncTests = []
+  onFail = (description, fn, err) ->
+    failures.push
+      filename: global.currentFile
+      error: err
+      description: description
+      source: fn.toString() if fn.toString?
 
   # Our test helper function for delimiting different test cases.
   global.test = (description, fn) ->
     try
       fn.test = {description, currentFile}
-      fn.call(fn)
-      ++passedTests
-    catch e
-      failures.push
-        filename: currentFile
-        error: e
-        description: description if description?
-        source: fn.toString() if fn.toString?
+      result = fn.call(fn)
+      if result instanceof Promise # An async test.
+        asyncTests.push result
+        result.then ->
+          passedTests++
+        .catch (err) ->
+          onFail description, fn, err
+      else
+        passedTests++
+    catch err
+      onFail description, fn, err
+
+  global.supportsAsync = try
+      new Function('async () => {}')()
+      yes
+    catch
+      no
 
   helpers.extend global, require './test/support/helpers'
 
@@ -402,12 +450,10 @@ runTests = (CoffeeScript) ->
 
   # Run every test in the `test` folder, recording failures.
   files = fs.readdirSync 'test'
+  unless global.supportsAsync # Except for async tests, if async isn’t supported.
+    files = files.filter (filename) -> filename isnt 'async.coffee'
 
-  # Ignore async test file if async/await is not available
-  asyncSupported = parseInt(process.versions.node.split('.')[0]) >= 7 and
-    ('--harmony' in process.execArgv or '--harmony-async-await' in process.execArgv)
-  files.splice files.indexOf('async.coffee'), 1 unless asyncSupported
-
+  startTime = Date.now()
   for file in files when helpers.isCoffee file
     literate = helpers.isLiterate file
     currentFile = filename = path.join 'test', file
@@ -416,11 +462,13 @@ runTests = (CoffeeScript) ->
       CoffeeScript.run code.toString(), {filename, literate}
     catch error
       failures.push {filename, error}
-  return !failures.length
+
+  Promise.all(asyncTests).then ->
+    Promise.reject() if failures.length isnt 0
 
 
 task 'test', 'run the CoffeeScript language test suite', ->
-  runTests CoffeeScript
+  runTests(CoffeeScript).catch -> process.exit 1
 
 
 task 'test:browser', 'run the test suite against the merged browser script', ->
@@ -428,4 +476,39 @@ task 'test:browser', 'run the test suite against the merged browser script', ->
   result = {}
   global.testingBrowser = yes
   (-> eval source).call result
-  runTests result.CoffeeScript
+  runTests(CoffeeScript).catch -> process.exit 1
+
+
+task 'test:integrations', 'test the module integrated with other libraries and environments', ->
+  # Tools like Webpack and Browserify generate builds intended for a browser
+  # environment where Node modules are not available. We want to ensure that
+  # the CoffeeScript module as presented by the `browser` key in `package.json`
+  # can be built by such tools; if such a build succeeds, it verifies that no
+  # Node modules are required as part of the compiler (as opposed to the tests)
+  # and that therefore the compiler will run in a browser environment.
+  tmpdir = os.tmpdir()
+  webpack = require 'webpack'
+  webpack {
+    entry: './'
+    output:
+      path: tmpdir
+      filename: 'coffeescript.js'
+      library: 'CoffeeScript'
+      libraryTarget: 'commonjs2'
+  }, (err, stats) ->
+    if err or stats.hasErrors()
+      if err
+        console.error err.stack or err
+        console.error err.details if err.details
+      if stats.hasErrors()
+        console.error error for error in stats.compilation.errors
+      if stats.hasWarnings()
+        console.warn warning for warning in stats.compilation.warnings
+      process.exit 1
+
+    builtCompiler = path.join tmpdir, 'coffeescript.js'
+    CoffeeScript = require builtCompiler
+    global.testingBrowser = yes
+    testResults = runTests CoffeeScript
+    fs.unlinkSync builtCompiler
+    process.exit 1 unless testResults

README.md

@@ -22,10 +22,10 @@ CoffeeScript is a little language that compiles into JavaScript.
 
 ## Installation
 
-If you have the node package manager, npm, installed:
+Once you have Node.js installed:
 
 ```shell
-npm install --global coffee-script
+npm install --global coffeescript
 ```
 
 Leave off the `--global` if you don’t wish to install globally.
@@ -46,7 +46,7 @@ coffee -c /path/to/script.coffee
 
 For documentation, usage, and examples, see: http://coffeescript.org/
 
-To suggest a feature or report a bug: http://github.com/jashkenas/coffeescript/issues
+To suggest a feature or report a bug: https://github.com/jashkenas/coffeescript/issues
 
 If you’d like to chat, drop by #coffeescript on Freenode IRC.
 
@@ -54,4 +54,4 @@ The source repository: https://github.com/jashkenas/coffeescript.git
 
 Changelog: http://coffeescript.org/#changelog
 
-Our lovely and talented contributors are listed here: http://github.com/jashkenas/coffeescript/contributors
+Our lovely and talented contributors are listed here: https://github.com/jashkenas/coffeescript/contributors

bin/cake

@@ -2,6 +2,17 @@
 
 var path = require('path');
 var fs   = require('fs');
-var lib  = path.join(path.dirname(fs.realpathSync(__filename)), '../lib');
 
-require(lib + '/coffeescript/cake').run();
+var potentialPaths = [
+  path.join(process.cwd(), 'node_modules/coffeescript/lib/coffeescript'),
+  path.join(process.cwd(), 'node_modules/coffeescript/lib/coffee-script'),
+  path.join(process.cwd(), 'node_modules/coffee-script/lib/coffee-script'),
+  path.join(__dirname, '../lib/coffeescript')
+];
+
+for (var i = 0, len = potentialPaths.length; i < len; i++) {
+  if (fs.existsSync(potentialPaths[i])) {
+    require(potentialPaths[i] + '/cake').run();
+    break;
+  }
+}

bin/coffee

@@ -2,6 +2,17 @@
 
 var path = require('path');
 var fs   = require('fs');
-var lib  = path.join(path.dirname(fs.realpathSync(__filename)), '../lib');
 
-require(lib + '/coffeescript/command').run();
+var potentialPaths = [
+  path.join(process.cwd(), 'node_modules/coffeescript/lib/coffeescript'),
+  path.join(process.cwd(), 'node_modules/coffeescript/lib/coffee-script'),
+  path.join(process.cwd(), 'node_modules/coffee-script/lib/coffee-script'),
+  path.join(__dirname, '../lib/coffeescript')
+];
+
+for (var i = 0, len = potentialPaths.length; i < len; i++) {
+  if (fs.existsSync(potentialPaths[i])) {
+    require(potentialPaths[i] + '/command').run();
+    break;
+  }
+}

bower.json

@@ -1,7 +1,7 @@
 {
   "name": "coffeescript",
   "main": [
-    "lib/coffeescript/coffeescript.js"
+    "lib/coffeescript/browser.js"
   ],
   "description": "Unfancy JavaScript",
   "keywords": [

docs/annotated-source

@@ -0,0 +1 @@
+v2/annotated-source

docs/announcing-coffeescript-2

@@ -0,0 +1 @@
+v2/announcing-coffeescript-2

docs/browser-compiler

@@ -0,0 +1 @@
+v2/browser-compiler

docs/index.html

@@ -1 +1 @@
-v1/index.html
+v2/index.html

docs/manifest.json

@@ -1,5 +1,6 @@
 {
-	"name": "",
+	"name": "CoffeeScript",
+	"description": "Unfancy JavaScript",
 	"icons": [
 		{
 			"src": "\/android-chrome-192x192.png",

docs/test.html

@@ -0,0 +1 @@
+v2/test.html

docs/v1/annotated-source/cake.html

@@ -116,7 +116,7 @@
                 <a class="pilcrow" href="#section-1">&#182;</a>
               </div>
               <p><code>cake</code> is a simplified version of <a href="http://www.gnu.org/software/make/">Make</a>
-(<a href="http://rake.rubyforge.org/">Rake</a>, <a href="http://github.com/280north/jake">Jake</a>)
+(<a href="http://rake.rubyforge.org/">Rake</a>, <a href="https://github.com/280north/jake">Jake</a>)
 for CoffeeScript. You define tasks with names and descriptions in a Cakefile,
 and can call them from the command line, or invoke them from other tasks.</p>
 <p>Running <code>cake</code> with no arguments will print out a list of all the tasks in the

docs/v1/annotated-source/grammar.html

@@ -115,17 +115,17 @@
               <div class="pilwrap ">
                 <a class="pilcrow" href="#section-1">&#182;</a>
               </div>
-              <p>The CoffeeScript parser is generated by <a href="http://github.com/zaach/jison">Jison</a>
+              <p>The CoffeeScript parser is generated by <a href="https://github.com/zaach/jison">Jison</a>
 from this grammar file. Jison is a bottom-up parser generator, similar in
 style to <a href="http://www.gnu.org/software/bison">Bison</a>, implemented in JavaScript.
-It can recognize <a href="http://en.wikipedia.org/wiki/LR_grammar">LALR(1), LR(0), SLR(1), and LR(1)</a>
+It can recognize <a href="https://en.wikipedia.org/wiki/LR_grammar">LALR(1), LR(0), SLR(1), and LR(1)</a>
 type grammars. To create the Jison parser, we list the pattern to match
 on the left-hand side, and the action to take (usually the creation of syntax
 tree nodes) on the right. As the parser runs, it
 shifts tokens from our token stream, from left to right, and
-<a href="http://en.wikipedia.org/wiki/Bottom-up_parsing">attempts to match</a>
+<a href="https://en.wikipedia.org/wiki/Bottom-up_parsing">attempts to match</a>
 the token sequence against the rules below. When a match can be made, it
-reduces into the <a href="http://en.wikipedia.org/wiki/Terminal_and_nonterminal_symbols">nonterminal</a>
+reduces into the <a href="https://en.wikipedia.org/wiki/Terminal_and_nonterminal_symbols">nonterminal</a>
 (the enclosing name at the top), and we proceed from there.</p>
 <p>If you run the <code>cake build:parser</code> command, Jison constructs a parse table
 from our rules and saves it into <code>lib/parser.js</code>.</p>
@@ -199,7 +199,7 @@ wrapper and just returning the value directly.</p>
                 <a class="pilcrow" href="#section-6">&#182;</a>
               </div>
               <p>Our handy DSL for Jison grammar generation, thanks to
-<a href="http://github.com/creationix">Tim Caswell</a>. For every rule in the grammar,
+<a href="https://github.com/creationix">Tim Caswell</a>. For every rule in the grammar,
 we pass the pattern-defining string, the action to run, and extra options,
 optionally. If no action is specified, we simply pass the value of the
 previous nonterminal.</p>
@@ -575,6 +575,7 @@ the ordinary <strong>Assign</strong> is that these allow numbers and strings as
             
             <div class="content"><div class='highlight'><pre>  Return: [
     o <span class="hljs-string">'RETURN Expression'</span>,                      <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Return $<span class="hljs-number">2</span>
+    o <span class="hljs-string">'RETURN INDENT Object OUTDENT'</span>,           <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Return <span class="hljs-keyword">new</span> Value $<span class="hljs-number">3</span>
     o <span class="hljs-string">'RETURN'</span>,                                 <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Return
   ]
 
@@ -968,6 +969,7 @@ and optional references to the superclass.</p>
     o <span class="hljs-string">'Identifier AS Identifier'</span>,               <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> ExportSpecifier $<span class="hljs-number">1</span>, $<span class="hljs-number">3</span>
     o <span class="hljs-string">'Identifier AS DEFAULT'</span>,                  <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> ExportSpecifier $<span class="hljs-number">1</span>, <span class="hljs-keyword">new</span> Literal $<span class="hljs-number">3</span>
     o <span class="hljs-string">'DEFAULT'</span>,                                <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> ExportSpecifier <span class="hljs-keyword">new</span> Literal $<span class="hljs-number">1</span>
+    o <span class="hljs-string">'DEFAULT AS Identifier'</span>,                  <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> ExportSpecifier <span class="hljs-keyword">new</span> Literal($<span class="hljs-number">1</span>), $<span class="hljs-number">3</span>
   ]</pre></div></div>
             
         </li>

docs/v1/annotated-source/lexer.html

@@ -121,7 +121,7 @@ a token is produced, we consume the match, and start again. Tokens are in the
 form:</p>
 <pre><code>[tag, value, locationData]
 </code></pre><p>where locationData is {first_line, first_column, last_line, last_column}, which is a
-format that can be fed directly into <a href="http://github.com/zaach/jison">Jison</a>.  These
+format that can be fed directly into <a href="https://github.com/zaach/jison">Jison</a>.  These
 are read by jison in the <code>parser.lexer</code> function defined in coffee-script.coffee.</p>
 
             </div>
@@ -219,6 +219,7 @@ it has consumed.</p>
     @seenFor    = <span class="hljs-literal">no</span>             <span class="hljs-comment"># Used to recognize FORIN, FOROF and FORFROM tokens.</span>
     @seenImport = <span class="hljs-literal">no</span>             <span class="hljs-comment"># Used to recognize IMPORT FROM? AS? tokens.</span>
     @seenExport = <span class="hljs-literal">no</span>             <span class="hljs-comment"># Used to recognize EXPORT FROM? AS? tokens.</span>
+    @importSpecifierList = <span class="hljs-literal">no</span>    <span class="hljs-comment"># Used to identify when in an IMPORT {...} FROM? ...</span>
     @exportSpecifierList = <span class="hljs-literal">no</span>    <span class="hljs-comment"># Used to identify when in an EXPORT {...} FROM? ...</span>
 
     @chunkLine =
@@ -380,10 +381,10 @@ though <code>is</code> means <code>===</code> otherwise.</p>
       <span class="hljs-keyword">if</span> @tag() <span class="hljs-keyword">in</span> [<span class="hljs-string">'DEFAULT'</span>, <span class="hljs-string">'IMPORT_ALL'</span>, <span class="hljs-string">'IDENTIFIER'</span>]
         @token <span class="hljs-string">'AS'</span>, id
         <span class="hljs-keyword">return</span> id.length
-    <span class="hljs-keyword">if</span> id <span class="hljs-keyword">is</span> <span class="hljs-string">'as'</span> <span class="hljs-keyword">and</span> @seenExport <span class="hljs-keyword">and</span> @tag() <span class="hljs-keyword">is</span> <span class="hljs-string">'IDENTIFIER'</span>
+    <span class="hljs-keyword">if</span> id <span class="hljs-keyword">is</span> <span class="hljs-string">'as'</span> <span class="hljs-keyword">and</span> @seenExport <span class="hljs-keyword">and</span> @tag() <span class="hljs-keyword">in</span> [<span class="hljs-string">'IDENTIFIER'</span>, <span class="hljs-string">'DEFAULT'</span>]
       @token <span class="hljs-string">'AS'</span>, id
       <span class="hljs-keyword">return</span> id.length
-    <span class="hljs-keyword">if</span> id <span class="hljs-keyword">is</span> <span class="hljs-string">'default'</span> <span class="hljs-keyword">and</span> @seenExport
+    <span class="hljs-keyword">if</span> id <span class="hljs-keyword">is</span> <span class="hljs-string">'default'</span> <span class="hljs-keyword">and</span> @seenExport <span class="hljs-keyword">and</span> @tag() <span class="hljs-keyword">in</span> [<span class="hljs-string">'EXPORT'</span>, <span class="hljs-string">'AS'</span>]
       @token <span class="hljs-string">'DEFAULT'</span>, id
       <span class="hljs-keyword">return</span> id.length
 
@@ -565,14 +566,14 @@ properly tag the <code>from</code>.</p>
         indent = attempt <span class="hljs-keyword">if</span> indent <span class="hljs-keyword">is</span> <span class="hljs-literal">null</span> <span class="hljs-keyword">or</span> <span class="hljs-number">0</span> &lt; attempt.length &lt; indent.length
       indentRegex = <span class="hljs-regexp">/// \n<span class="hljs-subst">#{indent}</span> ///</span>g <span class="hljs-keyword">if</span> indent
       @mergeInterpolationTokens tokens, {delimiter}, <span class="hljs-function"><span class="hljs-params">(value, i)</span> =&gt;</span>
-        value = @formatString value
+        value = @formatString value, delimiter: quote
         value = value.replace indentRegex, <span class="hljs-string">'\n'</span> <span class="hljs-keyword">if</span> indentRegex
         value = value.replace LEADING_BLANK_LINE,  <span class="hljs-string">''</span> <span class="hljs-keyword">if</span> i <span class="hljs-keyword">is</span> <span class="hljs-number">0</span>
         value = value.replace TRAILING_BLANK_LINE, <span class="hljs-string">''</span> <span class="hljs-keyword">if</span> i <span class="hljs-keyword">is</span> $
         value
     <span class="hljs-keyword">else</span>
       @mergeInterpolationTokens tokens, {delimiter}, <span class="hljs-function"><span class="hljs-params">(value, i)</span> =&gt;</span>
-        value = @formatString value
+        value = @formatString value, delimiter: quote
         value = value.replace SIMPLE_STRING_OMIT, <span class="hljs-function"><span class="hljs-params">(match, offset)</span> -&gt;</span>
           <span class="hljs-keyword">if</span> (i <span class="hljs-keyword">is</span> <span class="hljs-number">0</span> <span class="hljs-keyword">and</span> offset <span class="hljs-keyword">is</span> <span class="hljs-number">0</span>) <span class="hljs-keyword">or</span>
              (i <span class="hljs-keyword">is</span> $ <span class="hljs-keyword">and</span> offset + match.length <span class="hljs-keyword">is</span> value.length)
@@ -684,6 +685,7 @@ borrow some basic heuristics from JavaScript and Ruby.</p>
       <span class="hljs-keyword">when</span> match = REGEX.exec @chunk
         [regex, body, closed] = match
         @validateEscapes body, isRegex: <span class="hljs-literal">yes</span>, offsetInChunk: <span class="hljs-number">1</span>
+        body = @formatRegex body, delimiter: <span class="hljs-string">'/'</span>
         index = regex.length
         [..., prev] = @tokens
         <span class="hljs-keyword">if</span> prev
@@ -742,6 +744,8 @@ can close multiple indents, so we need to know how far in we happen to be.</p>
     indent = match[<span class="hljs-number">0</span>]
 
     @seenFor = <span class="hljs-literal">no</span>
+    @seenImport = <span class="hljs-literal">no</span> <span class="hljs-keyword">unless</span> @importSpecifierList
+    @seenExport = <span class="hljs-literal">no</span> <span class="hljs-keyword">unless</span> @exportSpecifierList
 
     size = indent.length - <span class="hljs-number">1</span> - indent.lastIndexOf <span class="hljs-string">'\n'</span>
     noNewlines = @unfinished()
@@ -923,7 +927,11 @@ parentheses that indicate a method call from regular parentheses, and so on.</p>
         @error message, origin[<span class="hljs-number">2</span>] <span class="hljs-keyword">if</span> message
       <span class="hljs-keyword">return</span> value.length <span class="hljs-keyword">if</span> skipToken
 
-    <span class="hljs-keyword">if</span> value <span class="hljs-keyword">is</span> <span class="hljs-string">'{'</span> <span class="hljs-keyword">and</span> prev?[<span class="hljs-number">0</span>] <span class="hljs-keyword">is</span> <span class="hljs-string">'EXPORT'</span>
+    <span class="hljs-keyword">if</span> value <span class="hljs-keyword">is</span> <span class="hljs-string">'{'</span> <span class="hljs-keyword">and</span> @seenImport
+      @importSpecifierList = <span class="hljs-literal">yes</span>
+    <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span> @importSpecifierList <span class="hljs-keyword">and</span> value <span class="hljs-keyword">is</span> <span class="hljs-string">'}'</span>
+      @importSpecifierList = <span class="hljs-literal">no</span>
+    <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span> value <span class="hljs-keyword">is</span> <span class="hljs-string">'{'</span> <span class="hljs-keyword">and</span> prev?[<span class="hljs-number">0</span>] <span class="hljs-keyword">is</span> <span class="hljs-string">'EXPORT'</span>
       @exportSpecifierList = <span class="hljs-literal">yes</span>
     <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span> @exportSpecifierList <span class="hljs-keyword">and</span> value <span class="hljs-keyword">is</span> <span class="hljs-string">'}'</span>
       @exportSpecifierList = <span class="hljs-literal">no</span>
@@ -1255,7 +1263,7 @@ sane location data.</p>
 
             </div>
             
-            <div class="content"><div class='highlight'><pre>          converted = fn token[<span class="hljs-number">1</span>], i</pre></div></div>
+            <div class="content"><div class='highlight'><pre>          converted = fn.call <span class="hljs-keyword">this</span>, token[<span class="hljs-number">1</span>], i</pre></div></div>
             
         </li>
         
@@ -1547,15 +1555,22 @@ not specified, the length of <code>value</code> will be used.</p>
             
             <div class="content"><div class='highlight'><pre>  unfinished: <span class="hljs-function">-&gt;</span>
     LINE_CONTINUER.test(@chunk) <span class="hljs-keyword">or</span>
-    @tag() <span class="hljs-keyword">in</span> [<span class="hljs-string">'\\'</span>, <span class="hljs-string">'.'</span>, <span class="hljs-string">'?.'</span>, <span class="hljs-string">'?::'</span>, <span class="hljs-string">'UNARY'</span>, <span class="hljs-string">'MATH'</span>, <span class="hljs-string">'UNARY_MATH'</span>, <span class="hljs-string">'+'</span>, <span class="hljs-string">'-'</span>,
-               <span class="hljs-string">'**'</span>, <span class="hljs-string">'SHIFT'</span>, <span class="hljs-string">'RELATION'</span>, <span class="hljs-string">'COMPARE'</span>, <span class="hljs-string">'&amp;'</span>, <span class="hljs-string">'^'</span>, <span class="hljs-string">'|'</span>, <span class="hljs-string">'&amp;&amp;'</span>, <span class="hljs-string">'||'</span>,
-               <span class="hljs-string">'BIN?'</span>, <span class="hljs-string">'THROW'</span>, <span class="hljs-string">'EXTENDS'</span>]
+    @tag() <span class="hljs-keyword">in</span> UNFINISHED
 
-  formatString: <span class="hljs-function"><span class="hljs-params">(str)</span> -&gt;</span>
-    str.replace STRING_OMIT, <span class="hljs-string">'$1'</span>
+  formatString: <span class="hljs-function"><span class="hljs-params">(str, options)</span> -&gt;</span>
+    @replaceUnicodeCodePointEscapes str.replace(STRING_OMIT, <span class="hljs-string">'$1'</span>), options
 
   formatHeregex: <span class="hljs-function"><span class="hljs-params">(str)</span> -&gt;</span>
-    str.replace HEREGEX_OMIT, <span class="hljs-string">'$1$2'</span></pre></div></div>
+    @formatRegex str.replace(HEREGEX_OMIT, <span class="hljs-string">'$1$2'</span>), delimiter: <span class="hljs-string">'///'</span>
+
+  formatRegex: <span class="hljs-function"><span class="hljs-params">(str, options)</span> -&gt;</span>
+    @replaceUnicodeCodePointEscapes str, options
+
+  unicodeCodePointToUnicodeEscapes: <span class="hljs-function"><span class="hljs-params">(codePoint)</span> -&gt;</span>
+<span class="hljs-function">    <span class="hljs-title">toUnicodeEscape</span> = <span class="hljs-params">(val)</span> -&gt;</span>
+      str = val.toString <span class="hljs-number">16</span>
+      <span class="hljs-string">"\\u<span class="hljs-subst">#{repeat <span class="hljs-string">'0'</span>, <span class="hljs-number">4</span> - str.length}</span><span class="hljs-subst">#{str}</span>"</span>
+    <span class="hljs-keyword">return</span> toUnicodeEscape(codePoint) <span class="hljs-keyword">if</span> codePoint &lt; <span class="hljs-number">0x10000</span></pre></div></div>
             
         </li>
         
@@ -1566,24 +1581,13 @@ not specified, the length of <code>value</code> will be used.</p>
               <div class="pilwrap ">
                 <a class="pilcrow" href="#section-59">&#182;</a>
               </div>
-              <p>Validates escapes in strings and regexes.</p>
+              <p>surrogate pair</p>
 
             </div>
             
-            <div class="content"><div class='highlight'><pre>  validateEscapes: <span class="hljs-function"><span class="hljs-params">(str, options = {})</span> -&gt;</span>
-    match = INVALID_ESCAPE.exec str
-    <span class="hljs-keyword">return</span> <span class="hljs-keyword">unless</span> match
-    [[], before, octal, hex, unicode] = match
-    <span class="hljs-keyword">return</span> <span class="hljs-keyword">if</span> options.isRegex <span class="hljs-keyword">and</span> octal <span class="hljs-keyword">and</span> octal.charAt(<span class="hljs-number">0</span>) <span class="hljs-keyword">isnt</span> <span class="hljs-string">'0'</span>
-    message =
-      <span class="hljs-keyword">if</span> octal
-        <span class="hljs-string">"octal escape sequences are not allowed"</span>
-      <span class="hljs-keyword">else</span>
-        <span class="hljs-string">"invalid escape sequence"</span>
-    invalidEscape = <span class="hljs-string">"\\<span class="hljs-subst">#{octal <span class="hljs-keyword">or</span> hex <span class="hljs-keyword">or</span> unicode}</span>"</span>
-    @error <span class="hljs-string">"<span class="hljs-subst">#{message}</span> <span class="hljs-subst">#{invalidEscape}</span>"</span>,
-      offset: (options.offsetInChunk ? <span class="hljs-number">0</span>) + match.index + before.length
-      length: invalidEscape.length</pre></div></div>
+            <div class="content"><div class='highlight'><pre>    high = Math.floor((codePoint - <span class="hljs-number">0x10000</span>) / <span class="hljs-number">0x400</span>) + <span class="hljs-number">0xD800</span>
+    low = (codePoint - <span class="hljs-number">0x10000</span>) % <span class="hljs-number">0x400</span> + <span class="hljs-number">0xDC00</span>
+    <span class="hljs-string">"<span class="hljs-subst">#{toUnicodeEscape(high)}</span><span class="hljs-subst">#{toUnicodeEscape(low)}</span>"</span></pre></div></div>
             
         </li>
         
@@ -1594,6 +1598,63 @@ not specified, the length of <code>value</code> will be used.</p>
               <div class="pilwrap ">
                 <a class="pilcrow" href="#section-60">&#182;</a>
               </div>
+              <p>Replace \u{…} with \uxxxx[\uxxxx] in strings and regexes</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>  replaceUnicodeCodePointEscapes: <span class="hljs-function"><span class="hljs-params">(str, options)</span> -&gt;</span>
+    str.replace UNICODE_CODE_POINT_ESCAPE, <span class="hljs-function"><span class="hljs-params">(match, escapedBackslash, codePointHex, offset)</span> =&gt;</span>
+      <span class="hljs-keyword">return</span> escapedBackslash <span class="hljs-keyword">if</span> escapedBackslash
+
+      codePointDecimal = parseInt codePointHex, <span class="hljs-number">16</span>
+      <span class="hljs-keyword">if</span> codePointDecimal &gt; <span class="hljs-number">0x10ffff</span>
+        @error <span class="hljs-string">"unicode code point escapes greater than \\u{10ffff} are not allowed"</span>,
+          offset: offset + options.delimiter.length
+          length: codePointHex.length + <span class="hljs-number">4</span>
+
+      @unicodeCodePointToUnicodeEscapes codePointDecimal</pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-61">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-61">&#182;</a>
+              </div>
+              <p>Validates escapes in strings and regexes.</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>  validateEscapes: <span class="hljs-function"><span class="hljs-params">(str, options = {})</span> -&gt;</span>
+    invalidEscapeRegex =
+      <span class="hljs-keyword">if</span> options.isRegex
+        REGEX_INVALID_ESCAPE
+      <span class="hljs-keyword">else</span>
+        STRING_INVALID_ESCAPE
+    match = invalidEscapeRegex.exec str
+    <span class="hljs-keyword">return</span> <span class="hljs-keyword">unless</span> match
+    [[], before, octal, hex, unicodeCodePoint, unicode] = match
+    message =
+      <span class="hljs-keyword">if</span> octal
+        <span class="hljs-string">"octal escape sequences are not allowed"</span>
+      <span class="hljs-keyword">else</span>
+        <span class="hljs-string">"invalid escape sequence"</span>
+    invalidEscape = <span class="hljs-string">"\\<span class="hljs-subst">#{octal <span class="hljs-keyword">or</span> hex <span class="hljs-keyword">or</span> unicodeCodePoint <span class="hljs-keyword">or</span> unicode}</span>"</span>
+    @error <span class="hljs-string">"<span class="hljs-subst">#{message}</span> <span class="hljs-subst">#{invalidEscape}</span>"</span>,
+      offset: (options.offsetInChunk ? <span class="hljs-number">0</span>) + match.index + before.length
+      length: invalidEscape.length</pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-62">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-62">&#182;</a>
+              </div>
               <p>Constructs a string or regex by escaping certain characters.</p>
 
             </div>
@@ -1612,11 +1673,11 @@ not specified, the length of <code>value</code> will be used.</p>
         </li>
         
         
-        <li id="section-61">
+        <li id="section-63">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-61">&#182;</a>
+                <a class="pilcrow" href="#section-63">&#182;</a>
               </div>
               <p>Ignore escaped backslashes.</p>
 
@@ -1635,11 +1696,11 @@ not specified, the length of <code>value</code> will be used.</p>
         </li>
         
         
-        <li id="section-62">
+        <li id="section-64">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-62">&#182;</a>
+                <a class="pilcrow" href="#section-64">&#182;</a>
               </div>
               <p>Throws an error at either a given offset from the current chunk or at the
 location of a token (<code>token[2]</code>).</p>
@@ -1658,11 +1719,11 @@ location of a token (<code>token[2]</code>).</p>
         </li>
         
         
-        <li id="section-63">
+        <li id="section-65">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-63">&#182;</a>
+                <a class="pilcrow" href="#section-65">&#182;</a>
               </div>
               <h2 id="helper-functions">Helper functions</h2>
 
@@ -1671,11 +1732,11 @@ location of a token (<code>token[2]</code>).</p>
         </li>
         
         
-        <li id="section-64">
+        <li id="section-66">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-64">&#182;</a>
+                <a class="pilcrow" href="#section-66">&#182;</a>
               </div>
               
             </div>
@@ -1696,11 +1757,11 @@ exports.isUnassignable = isUnassignable</pre></div></div>
         </li>
         
         
-        <li id="section-65">
+        <li id="section-67">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-65">&#182;</a>
+                <a class="pilcrow" href="#section-67">&#182;</a>
               </div>
               <p><code>from</code> isn’t a CoffeeScript keyword, but it behaves like one in <code>import</code> and
 <code>export</code> statements (handled above) and in the declaration line of a <code>for</code>
@@ -1715,11 +1776,11 @@ loop. Try to detect when <code>from</code> is a variable identifier and when it
         </li>
         
         
-        <li id="section-66">
+        <li id="section-68">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-66">&#182;</a>
+                <a class="pilcrow" href="#section-68">&#182;</a>
               </div>
               <p><code>for i from from</code>, <code>for from from iterable</code></p>
 
@@ -1732,11 +1793,11 @@ loop. Try to detect when <code>from</code> is a variable identifier and when it
         </li>
         
         
-        <li id="section-67">
+        <li id="section-69">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-67">&#182;</a>
+                <a class="pilcrow" href="#section-69">&#182;</a>
               </div>
               <p><code>for i from iterable</code></p>
 
@@ -1747,11 +1808,11 @@ loop. Try to detect when <code>from</code> is a variable identifier and when it
         </li>
         
         
-        <li id="section-68">
+        <li id="section-70">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-68">&#182;</a>
+                <a class="pilcrow" href="#section-70">&#182;</a>
               </div>
               <p><code>for from…</code></p>
 
@@ -1763,11 +1824,11 @@ loop. Try to detect when <code>from</code> is a variable identifier and when it
         </li>
         
         
-        <li id="section-69">
+        <li id="section-71">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-69">&#182;</a>
+                <a class="pilcrow" href="#section-71">&#182;</a>
               </div>
               <p><code>for {from}…</code>, <code>for [from]…</code>, <code>for {a, from}…</code>, <code>for {a: from}…</code></p>
 
@@ -1781,11 +1842,11 @@ loop. Try to detect when <code>from</code> is a variable identifier and when it
         </li>
         
         
-        <li id="section-70">
+        <li id="section-72">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-70">&#182;</a>
+                <a class="pilcrow" href="#section-72">&#182;</a>
               </div>
               <h2 id="constants">Constants</h2>
 
@@ -1794,11 +1855,11 @@ loop. Try to detect when <code>from</code> is a variable identifier and when it
         </li>
         
         
-        <li id="section-71">
+        <li id="section-73">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-71">&#182;</a>
+                <a class="pilcrow" href="#section-73">&#182;</a>
               </div>
               
             </div>
@@ -1806,11 +1867,11 @@ loop. Try to detect when <code>from</code> is a variable identifier and when it
         </li>
         
         
-        <li id="section-72">
+        <li id="section-74">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-72">&#182;</a>
+                <a class="pilcrow" href="#section-74">&#182;</a>
               </div>
               <p>Keywords that CoffeeScript shares in common with JavaScript.</p>
 
@@ -1828,11 +1889,11 @@ loop. Try to detect when <code>from</code> is a variable identifier and when it
         </li>
         
         
-        <li id="section-73">
+        <li id="section-75">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-73">&#182;</a>
+                <a class="pilcrow" href="#section-75">&#182;</a>
               </div>
               <p>CoffeeScript-only keywords.</p>
 
@@ -1860,11 +1921,11 @@ COFFEE_KEYWORDS = COFFEE_KEYWORDS.concat COFFEE_ALIASES</pre></div></div>
         </li>
         
         
-        <li id="section-74">
+        <li id="section-76">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-74">&#182;</a>
+                <a class="pilcrow" href="#section-76">&#182;</a>
               </div>
               <p>The list of keywords that are reserved by JavaScript, but not used, or are
 used by CoffeeScript internally. We throw an error when these are encountered,
@@ -1883,11 +1944,11 @@ STRICT_PROSCRIBED = [<span class="hljs-string">'arguments'</span>, <span class="
         </li>
         
         
-        <li id="section-75">
+        <li id="section-77">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-75">&#182;</a>
+                <a class="pilcrow" href="#section-77">&#182;</a>
               </div>
               <p>The superset of both JavaScript keywords and reserved words, none of which may
 be used as identifiers or properties.</p>
@@ -1899,11 +1960,11 @@ be used as identifiers or properties.</p>
         </li>
         
         
-        <li id="section-76">
+        <li id="section-78">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-76">&#182;</a>
+                <a class="pilcrow" href="#section-78">&#182;</a>
               </div>
               <p>The character code of the nasty Microsoft madness otherwise known as the BOM.</p>
 
@@ -1914,11 +1975,11 @@ be used as identifiers or properties.</p>
         </li>
         
         
-        <li id="section-77">
+        <li id="section-79">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-77">&#182;</a>
+                <a class="pilcrow" href="#section-79">&#182;</a>
               </div>
               <p>Token matching regexes.</p>
 
@@ -1961,11 +2022,11 @@ HERE_JSTOKEN = <span class="hljs-regexp">///^ ```     ((?: [^`\\] | \\[\s\S] | `
         </li>
         
         
-        <li id="section-78">
+        <li id="section-80">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-78">&#182;</a>
+                <a class="pilcrow" href="#section-80">&#182;</a>
               </div>
               <p>String-matching-regexes.</p>
 
@@ -1988,11 +2049,11 @@ HEREDOC_INDENT     = <span class="hljs-regexp">/\n+([^\n\S]*)(?=\S)/g</span></pr
         </li>
         
         
-        <li id="section-79">
+        <li id="section-81">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-79">&#182;</a>
+                <a class="pilcrow" href="#section-81">&#182;</a>
               </div>
               <p>Regex-matching-regexes.</p>
 
@@ -2009,7 +2070,7 @@ HEREDOC_INDENT     = <span class="hljs-regexp">/\n+([^\n\S]*)(?=\S)/g</span></pr
 ///</span>
 
 REGEX_FLAGS  = <span class="hljs-regexp">/^\w*/</span>
-VALID_FLAGS  = <span class="hljs-regexp">/^(?!.*(.).*\1)[imgy]*$/</span>
+VALID_FLAGS  = <span class="hljs-regexp">/^(?!.*(.).*\1)[imguy]*$/</span>
 
 HEREGEX      = <span class="hljs-regexp">/// ^(?: [^\\/<span class="hljs-comment">#] | \\[\s\S] | /(?!//) | \#(?!\{) )* ///</span>
 
@@ -2026,11 +2087,11 @@ POSSIBLY_DIVISION   = <span class="hljs-regexp">/// ^ /=?\s ///</span></pre></di
         </li>
         
         
-        <li id="section-80">
+        <li id="section-82">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-80">&#182;</a>
+                <a class="pilcrow" href="#section-82">&#182;</a>
               </div>
               <p>Other regexes.</p>
 
@@ -2040,14 +2101,30 @@ POSSIBLY_DIVISION   = <span class="hljs-regexp">/// ^ /=?\s ///</span></pre></di
 
 LINE_CONTINUER      = <span class="hljs-regexp">/// ^ \s* (?: , | \??\.(?![.\d]) | :: ) ///</span>
 
-INVALID_ESCAPE      = <span class="hljs-regexp">///
+STRING_INVALID_ESCAPE = <span class="hljs-regexp">///
   ( (?:^|[^\\]) (?:\\\\)* )        <span class="hljs-comment"># make sure the escape isn’t escaped</span>
   \\ (
      ?: (0[0-7]|[1-7])             <span class="hljs-comment"># octal escape</span>
       | (x(?![\da-fA-F]{2}).{0,2}) <span class="hljs-comment"># hex escape</span>
-      | (u(?![\da-fA-F]{4}).{0,4}) <span class="hljs-comment"># unicode escape</span>
+      | (u\{(?![\da-fA-F]{1,}\})[^}]*\}?) <span class="hljs-comment"># unicode code point escape</span>
+      | (u(?!\{|[\da-fA-F]{4}).{0,4}) <span class="hljs-comment"># unicode escape</span>
   )
 ///</span>
+REGEX_INVALID_ESCAPE = <span class="hljs-regexp">///
+  ( (?:^|[^\\]) (?:\\\\)* )        <span class="hljs-comment"># make sure the escape isn’t escaped</span>
+  \\ (
+     ?: (0[0-7])                   <span class="hljs-comment"># octal escape</span>
+      | (x(?![\da-fA-F]{2}).{0,2}) <span class="hljs-comment"># hex escape</span>
+      | (u\{(?![\da-fA-F]{1,}\})[^}]*\}?) <span class="hljs-comment"># unicode code point escape</span>
+      | (u(?!\{|[\da-fA-F]{4}).{0,4}) <span class="hljs-comment"># unicode escape</span>
+  )
+///</span>
+
+UNICODE_CODE_POINT_ESCAPE = <span class="hljs-regexp">///
+  ( \\\\ )        <span class="hljs-comment"># make sure the escape isn’t escaped</span>
+  |
+  \\u\{ ( [\da-fA-F]+ ) \}
+///</span>g
 
 LEADING_BLANK_LINE  = <span class="hljs-regexp">/^[^\n\S]*\n/</span>
 TRAILING_BLANK_LINE = <span class="hljs-regexp">/\n[^\n\S]*$/</span>
@@ -2057,11 +2134,11 @@ TRAILING_SPACES     = <span class="hljs-regexp">/\s+$/</span></pre></div></div>
         </li>
         
         
-        <li id="section-81">
+        <li id="section-83">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-81">&#182;</a>
+                <a class="pilcrow" href="#section-83">&#182;</a>
               </div>
               <p>Compound assignment tokens.</p>
 
@@ -2075,11 +2152,11 @@ TRAILING_SPACES     = <span class="hljs-regexp">/\s+$/</span></pre></div></div>
         </li>
         
         
-        <li id="section-82">
+        <li id="section-84">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-82">&#182;</a>
+                <a class="pilcrow" href="#section-84">&#182;</a>
               </div>
               <p>Unary tokens.</p>
 
@@ -2092,11 +2169,11 @@ UNARY_MATH = [<span class="hljs-string">'!'</span>, <span class="hljs-string">'~
         </li>
         
         
-        <li id="section-83">
+        <li id="section-85">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-83">&#182;</a>
+                <a class="pilcrow" href="#section-85">&#182;</a>
               </div>
               <p>Bit-shifting tokens.</p>
 
@@ -2107,11 +2184,11 @@ UNARY_MATH = [<span class="hljs-string">'!'</span>, <span class="hljs-string">'~
         </li>
         
         
-        <li id="section-84">
+        <li id="section-86">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-84">&#182;</a>
+                <a class="pilcrow" href="#section-86">&#182;</a>
               </div>
               <p>Comparison tokens.</p>
 
@@ -2122,11 +2199,11 @@ UNARY_MATH = [<span class="hljs-string">'!'</span>, <span class="hljs-string">'~
         </li>
         
         
-        <li id="section-85">
+        <li id="section-87">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-85">&#182;</a>
+                <a class="pilcrow" href="#section-87">&#182;</a>
               </div>
               <p>Mathematical tokens.</p>
 
@@ -2137,11 +2214,11 @@ UNARY_MATH = [<span class="hljs-string">'!'</span>, <span class="hljs-string">'~
         </li>
         
         
-        <li id="section-86">
+        <li id="section-88">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-86">&#182;</a>
+                <a class="pilcrow" href="#section-88">&#182;</a>
               </div>
               <p>Relational tokens that are negatable with <code>not</code> prefix.</p>
 
@@ -2152,11 +2229,11 @@ UNARY_MATH = [<span class="hljs-string">'!'</span>, <span class="hljs-string">'~
         </li>
         
         
-        <li id="section-87">
+        <li id="section-89">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-87">&#182;</a>
+                <a class="pilcrow" href="#section-89">&#182;</a>
               </div>
               <p>Boolean tokens.</p>
 
@@ -2167,11 +2244,11 @@ UNARY_MATH = [<span class="hljs-string">'!'</span>, <span class="hljs-string">'~
         </li>
         
         
-        <li id="section-88">
+        <li id="section-90">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-88">&#182;</a>
+                <a class="pilcrow" href="#section-90">&#182;</a>
               </div>
               <p>Tokens which could legitimately be invoked or indexed. An opening
 parentheses or bracket following these tokens will be recorded as the start
@@ -2188,11 +2265,11 @@ INDEXABLE = CALLABLE.concat [
         </li>
         
         
-        <li id="section-89">
+        <li id="section-91">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-89">&#182;</a>
+                <a class="pilcrow" href="#section-91">&#182;</a>
               </div>
               <p>Tokens which a regular expression will never immediately follow (except spaced
 CALLABLEs in some cases), but which a division operator can.</p>
@@ -2205,11 +2282,11 @@ CALLABLEs in some cases), but which a division operator can.</p>
         </li>
         
         
-        <li id="section-90">
+        <li id="section-92">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-90">&#182;</a>
+                <a class="pilcrow" href="#section-92">&#182;</a>
               </div>
               <p>Tokens that, when immediately preceding a <code>WHEN</code>, indicate that the <code>WHEN</code>
 occurs at the start of a line. We disambiguate these from trailing whens to
@@ -2222,11 +2299,11 @@ avoid an ambiguity in the grammar.</p>
         </li>
         
         
-        <li id="section-91">
+        <li id="section-93">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-91">&#182;</a>
+                <a class="pilcrow" href="#section-93">&#182;</a>
               </div>
               <p>Additional indent in front of these is ignored.</p>
 
@@ -2236,6 +2313,23 @@ avoid an ambiguity in the grammar.</p>
             
         </li>
         
+        
+        <li id="section-94">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-94">&#182;</a>
+              </div>
+              <p>Tokens that, when appearing at the end of a line, suppress a following TERMINATOR/INDENT token</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>UNFINISHED = [<span class="hljs-string">'\\'</span>, <span class="hljs-string">'.'</span>, <span class="hljs-string">'?.'</span>, <span class="hljs-string">'?::'</span>, <span class="hljs-string">'UNARY'</span>, <span class="hljs-string">'MATH'</span>, <span class="hljs-string">'UNARY_MATH'</span>, <span class="hljs-string">'+'</span>, <span class="hljs-string">'-'</span>,
+           <span class="hljs-string">'**'</span>, <span class="hljs-string">'SHIFT'</span>, <span class="hljs-string">'RELATION'</span>, <span class="hljs-string">'COMPARE'</span>, <span class="hljs-string">'&amp;'</span>, <span class="hljs-string">'^'</span>, <span class="hljs-string">'|'</span>, <span class="hljs-string">'&amp;&amp;'</span>, <span class="hljs-string">'||'</span>,
+           <span class="hljs-string">'BIN?'</span>, <span class="hljs-string">'THROW'</span>, <span class="hljs-string">'EXTENDS'</span>, <span class="hljs-string">'DEFAULT'</span>]</pre></div></div>
+            
+        </li>
+        
     </ul>
   </div>
 </body>

docs/v1/annotated-source/nodes.html

@@ -3941,7 +3941,7 @@ CoffeeScript operations into their JavaScript equivalents.</p>
                 <a class="pilcrow" href="#section-155">&#182;</a>
               </div>
               <p>Am I capable of
-<a href="http://docs.python.org/reference/expressions.html#notin">Python-style comparison chaining</a>?</p>
+<a href="https://docs.python.org/3/reference/expressions.html#not-in">Python-style comparison chaining</a>?</p>
 
             </div>
             
@@ -4450,7 +4450,8 @@ parentheses, but no longer – you can put in as many as you please.</p>
       <span class="hljs-keyword">return</span> expr.compileToFragments o
     fragments = expr.compileToFragments o, LEVEL_PAREN
     bare = o.level &lt; LEVEL_OP <span class="hljs-keyword">and</span> (expr <span class="hljs-keyword">instanceof</span> Op <span class="hljs-keyword">or</span> expr <span class="hljs-keyword">instanceof</span> Call <span class="hljs-keyword">or</span>
-      (expr <span class="hljs-keyword">instanceof</span> For <span class="hljs-keyword">and</span> expr.returns))
+      (expr <span class="hljs-keyword">instanceof</span> For <span class="hljs-keyword">and</span> expr.returns)) <span class="hljs-keyword">and</span> (o.level &lt; LEVEL_COND <span class="hljs-keyword">or</span>
+        fragments.length &lt;= <span class="hljs-number">3</span>)
     <span class="hljs-keyword">if</span> bare <span class="hljs-keyword">then</span> fragments <span class="hljs-keyword">else</span> @wrapInBraces fragments</pre></div></div>
             
         </li>

docs/v1/annotated-source/repl.html

@@ -256,7 +256,7 @@ Unwrap that too.</p>
             </div>
             
             <div class="content"><div class='highlight'><pre>      ast = <span class="hljs-keyword">new</span> Block [
-        <span class="hljs-keyword">new</span> Assign (<span class="hljs-keyword">new</span> Value <span class="hljs-keyword">new</span> Literal <span class="hljs-string">'_'</span>), ast, <span class="hljs-string">'='</span>
+        <span class="hljs-keyword">new</span> Assign (<span class="hljs-keyword">new</span> Value <span class="hljs-keyword">new</span> Literal <span class="hljs-string">'__'</span>), ast, <span class="hljs-string">'='</span>
       ]
       js = ast.compile {bare: <span class="hljs-literal">yes</span>, locals: Object.keys(context), referencedVars}
       cb <span class="hljs-literal">null</span>, runInContext js, context, filename
@@ -585,7 +585,7 @@ Unwrap that too.</p>
 
 <span class="hljs-built_in">module</span>.exports =
   start: <span class="hljs-function"><span class="hljs-params">(opts = {})</span> -&gt;</span>
-    [major, minor, build] = process.versions.node.split(<span class="hljs-string">'.'</span>).map (n) -&gt; parseInt(n)
+    [major, minor, build] = process.versions.node.split(<span class="hljs-string">'.'</span>).map (n) -&gt; parseInt(n, <span class="hljs-number">10</span>)
 
     <span class="hljs-keyword">if</span> major <span class="hljs-keyword">is</span> <span class="hljs-number">0</span> <span class="hljs-keyword">and</span> minor &lt; <span class="hljs-number">8</span>
       <span class="hljs-built_in">console</span>.warn <span class="hljs-string">"Node 0.8.0+ required for CoffeeScript REPL"</span>

docs/v1/annotated-source/rewriter.html

@@ -157,7 +157,7 @@ its internal array of tokens.</p>
 
             </div>
             
-            <div class="content"><div class='highlight'><pre><span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">exports</span>.<span class="hljs-title">Rewriter</span></span></pre></div></div>
+            <div class="content"><div class='highlight'><pre>exports.Rewriter = <span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">Rewriter</span></span></pre></div></div>
             
         </li>
         
@@ -168,11 +168,16 @@ its internal array of tokens.</p>
               <div class="pilwrap ">
                 <a class="pilcrow" href="#section-4">&#182;</a>
               </div>
-              <p>Helpful snippet for debugging:</p>
-<pre><code><span class="hljs-built_in">console</span>.log (t[<span class="hljs-number">0</span>] + <span class="hljs-string">'/'</span> + t[<span class="hljs-number">1</span>] <span class="hljs-keyword">for</span> t <span class="hljs-keyword">in</span> @tokens).join <span class="hljs-string">' '</span>
-</code></pre>
+              <p>Rewrite the token stream in multiple passes, one logical filter at
+a time. This could certainly be changed into a single pass through the
+stream, with a big ol’ efficient switch, but it’s much nicer to work with
+like this. The order of these passes matters – indentation must be
+corrected before implicit parentheses can be wrapped around blocks of code.</p>
+
             </div>
             
+            <div class="content"><div class='highlight'><pre>  rewrite: <span class="hljs-function"><span class="hljs-params">(@tokens)</span> -&gt;</span></pre></div></div>
+            
         </li>
         
         
@@ -182,16 +187,12 @@ its internal array of tokens.</p>
               <div class="pilwrap ">
                 <a class="pilcrow" href="#section-5">&#182;</a>
               </div>
-              <p>Rewrite the token stream in multiple passes, one logical filter at
-a time. This could certainly be changed into a single pass through the
-stream, with a big ol’ efficient switch, but it’s much nicer to work with
-like this. The order of these passes matters – indentation must be
-corrected before implicit parentheses can be wrapped around blocks of code.</p>
+              <p>Helpful snippet for debugging:
+    console.log (t[0] + ‘/‘ + t[1] for t in @tokens).join ‘ ‘</p>
 
             </div>
             
-            <div class="content"><div class='highlight'><pre>  rewrite: <span class="hljs-function"><span class="hljs-params">(@tokens)</span> -&gt;</span>
-    @removeLeadingNewlines()
+            <div class="content"><div class='highlight'><pre>    @removeLeadingNewlines()
     @closeOpenCalls()
     @closeOpenIndexes()
     @normalizeLines()
@@ -449,9 +450,12 @@ and spliced, when returning for getting a new token.</p>
 
             </div>
             
-            <div class="content"><div class='highlight'><pre><span class="hljs-function">      <span class="hljs-title">inImplicit</span>        = -&gt;</span> stackTop()?[<span class="hljs-number">2</span>]?.ours
-<span class="hljs-function">      <span class="hljs-title">inImplicitCall</span>    = -&gt;</span> inImplicit() <span class="hljs-keyword">and</span> stackTop()?[<span class="hljs-number">0</span>] <span class="hljs-keyword">is</span> <span class="hljs-string">'('</span>
-<span class="hljs-function">      <span class="hljs-title">inImplicitObject</span>  = -&gt;</span> inImplicit() <span class="hljs-keyword">and</span> stackTop()?[<span class="hljs-number">0</span>] <span class="hljs-keyword">is</span> <span class="hljs-string">'{'</span></pre></div></div>
+            <div class="content"><div class='highlight'><pre><span class="hljs-function">      <span class="hljs-title">isImplicit</span>        = <span class="hljs-params">(stackItem)</span> -&gt;</span> stackItem?[<span class="hljs-number">2</span>]?.ours
+<span class="hljs-function">      <span class="hljs-title">isImplicitObject</span>  = <span class="hljs-params">(stackItem)</span> -&gt;</span> isImplicit(stackItem) <span class="hljs-keyword">and</span> stackItem?[<span class="hljs-number">0</span>] <span class="hljs-keyword">is</span> <span class="hljs-string">'{'</span>
+<span class="hljs-function">      <span class="hljs-title">isImplicitCall</span>    = <span class="hljs-params">(stackItem)</span> -&gt;</span> isImplicit(stackItem) <span class="hljs-keyword">and</span> stackItem?[<span class="hljs-number">0</span>] <span class="hljs-keyword">is</span> <span class="hljs-string">'('</span>
+<span class="hljs-function">      <span class="hljs-title">inImplicit</span>        = -&gt;</span> isImplicit stackTop()
+<span class="hljs-function">      <span class="hljs-title">inImplicitCall</span>    = -&gt;</span> isImplicitCall stackTop()
+<span class="hljs-function">      <span class="hljs-title">inImplicitObject</span>  = -&gt;</span> isImplicitObject stackTop()</pre></div></div>
             
         </li>
         
@@ -472,7 +476,7 @@ class declaration or if-conditionals)</p>
       <span class="hljs-title">startImplicitCall</span> = <span class="hljs-params">(j)</span> -&gt;</span>
         idx = j ? i
         stack.push [<span class="hljs-string">'('</span>, idx, ours: <span class="hljs-literal">yes</span>]
-        tokens.splice idx, <span class="hljs-number">0</span>, generate <span class="hljs-string">'CALL_START'</span>, <span class="hljs-string">'('</span>
+        tokens.splice idx, <span class="hljs-number">0</span>, generate <span class="hljs-string">'CALL_START'</span>, <span class="hljs-string">'('</span>, [<span class="hljs-string">''</span>, <span class="hljs-string">'implicit function call'</span>, token[<span class="hljs-number">2</span>]]
         i += <span class="hljs-number">1</span> <span class="hljs-keyword">if</span> <span class="hljs-keyword">not</span> j?
 <span class="hljs-function">
       <span class="hljs-title">endImplicitCall</span> = -&gt;</span>
@@ -509,7 +513,7 @@ class declaration or if-conditionals)</p>
             
             <div class="content"><div class='highlight'><pre>      <span class="hljs-keyword">if</span> inImplicitCall() <span class="hljs-keyword">and</span> tag <span class="hljs-keyword">in</span> [<span class="hljs-string">'IF'</span>, <span class="hljs-string">'TRY'</span>, <span class="hljs-string">'FINALLY'</span>, <span class="hljs-string">'CATCH'</span>,
         <span class="hljs-string">'CLASS'</span>, <span class="hljs-string">'SWITCH'</span>]
-        stack.push [<span class="hljs-string">'CONTROL'</span>, i, ours: <span class="hljs-literal">true</span>]
+        stack.push [<span class="hljs-string">'CONTROL'</span>, i, ours: <span class="hljs-literal">yes</span>]
         <span class="hljs-keyword">return</span> forward(<span class="hljs-number">1</span>)
 
       <span class="hljs-keyword">if</span> tag <span class="hljs-keyword">is</span> <span class="hljs-string">'INDENT'</span> <span class="hljs-keyword">and</span> inImplicit()</pre></div></div>
@@ -734,8 +738,23 @@ like e.g.:</p>
 </code></pre>
             </div>
             
-            <div class="content"><div class='highlight'><pre>
-      stackTop()[<span class="hljs-number">2</span>].sameLine = <span class="hljs-literal">no</span> <span class="hljs-keyword">if</span> inImplicitObject() <span class="hljs-keyword">and</span> tag <span class="hljs-keyword">in</span> LINEBREAKS
+        </li>
+        
+        
+        <li id="section-29">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-29">&#182;</a>
+              </div>
+              <p>Mark all enclosing objects as not sameLine</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>      <span class="hljs-keyword">if</span> tag <span class="hljs-keyword">in</span> LINEBREAKS
+        <span class="hljs-keyword">for</span> stackItem <span class="hljs-keyword">in</span> stack <span class="hljs-keyword">by</span> <span class="hljs-number">-1</span>
+          <span class="hljs-keyword">break</span> <span class="hljs-keyword">unless</span> isImplicit stackItem
+          stackItem[<span class="hljs-number">2</span>].sameLine = <span class="hljs-literal">no</span> <span class="hljs-keyword">if</span> isImplicitObject stackItem
 
       newLine = prevTag <span class="hljs-keyword">is</span> <span class="hljs-string">'OUTDENT'</span> <span class="hljs-keyword">or</span> prevToken.newLine
       <span class="hljs-keyword">if</span> tag <span class="hljs-keyword">in</span> IMPLICIT_END <span class="hljs-keyword">or</span> tag <span class="hljs-keyword">in</span> CALL_CLOSERS <span class="hljs-keyword">and</span> newLine
@@ -745,11 +764,11 @@ like e.g.:</p>
         </li>
         
         
-        <li id="section-29">
+        <li id="section-30">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-29">&#182;</a>
+                <a class="pilcrow" href="#section-30">&#182;</a>
               </div>
               <p>Close implicit calls when reached end of argument list</p>
 
@@ -761,11 +780,11 @@ like e.g.:</p>
         </li>
         
         
-        <li id="section-30">
+        <li id="section-31">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-30">&#182;</a>
+                <a class="pilcrow" href="#section-31">&#182;</a>
               </div>
               <p>Close implicit objects such as:
 return a: 1, b: 2 unless true</p>
@@ -779,11 +798,11 @@ return a: 1, b: 2 unless true</p>
         </li>
         
         
-        <li id="section-31">
+        <li id="section-32">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-31">&#182;</a>
+                <a class="pilcrow" href="#section-32">&#182;</a>
               </div>
               <p>Close implicit objects when at end of line, line didn’t end with a comma
 and the implicit object didn’t start the line or the next line doesn’t look like
@@ -801,11 +820,11 @@ the continuation of an object.</p>
         </li>
         
         
-        <li id="section-32">
+        <li id="section-33">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-32">&#182;</a>
+                <a class="pilcrow" href="#section-33">&#182;</a>
               </div>
               <p>Close implicit object if comma is the last character
 and what comes after doesn’t look like it belongs.
@@ -826,11 +845,11 @@ e = <span class="hljs-number">2</span>
         </li>
         
         
-        <li id="section-33">
+        <li id="section-34">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-33">&#182;</a>
+                <a class="pilcrow" href="#section-34">&#182;</a>
               </div>
               <p>When nextTag is OUTDENT the comma is insignificant and
 should just be ignored so embed it in the implicit object.</p>
@@ -848,11 +867,11 @@ array further up the stack, so give it a chance.</p>
         </li>
         
         
-        <li id="section-34">
+        <li id="section-35">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-34">&#182;</a>
+                <a class="pilcrow" href="#section-35">&#182;</a>
               </div>
               <p>Add location data to all tokens generated by the rewriter.</p>
 
@@ -878,11 +897,11 @@ array further up the stack, so give it a chance.</p>
         </li>
         
         
-        <li id="section-35">
+        <li id="section-36">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-35">&#182;</a>
+                <a class="pilcrow" href="#section-36">&#182;</a>
               </div>
               <p>OUTDENT tokens should always be positioned at the last character of the
 previous token, so that AST nodes ending in an OUTDENT token end up with a
@@ -906,11 +925,11 @@ location corresponding to the last “real” token under the node.</p>
         </li>
         
         
-        <li id="section-36">
+        <li id="section-37">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-36">&#182;</a>
+                <a class="pilcrow" href="#section-37">&#182;</a>
               </div>
               <p>Because our grammar is LALR(1), it can’t handle some single-line
 expressions that lack ending delimiters. The <strong>Rewriter</strong> adds the implicit
@@ -928,7 +947,8 @@ blocks are added.</p>
       <span class="hljs-keyword">not</span> (token[<span class="hljs-number">0</span>] <span class="hljs-keyword">is</span> <span class="hljs-string">'TERMINATOR'</span> <span class="hljs-keyword">and</span> @tag(i + <span class="hljs-number">1</span>) <span class="hljs-keyword">in</span> EXPRESSION_CLOSE) <span class="hljs-keyword">and</span>
       <span class="hljs-keyword">not</span> (token[<span class="hljs-number">0</span>] <span class="hljs-keyword">is</span> <span class="hljs-string">'ELSE'</span> <span class="hljs-keyword">and</span> starter <span class="hljs-keyword">isnt</span> <span class="hljs-string">'THEN'</span>) <span class="hljs-keyword">and</span>
       <span class="hljs-keyword">not</span> (token[<span class="hljs-number">0</span>] <span class="hljs-keyword">in</span> [<span class="hljs-string">'CATCH'</span>, <span class="hljs-string">'FINALLY'</span>] <span class="hljs-keyword">and</span> starter <span class="hljs-keyword">in</span> [<span class="hljs-string">'-&gt;'</span>, <span class="hljs-string">'=&gt;'</span>]) <span class="hljs-keyword">or</span>
-      token[<span class="hljs-number">0</span>] <span class="hljs-keyword">in</span> CALL_CLOSERS <span class="hljs-keyword">and</span> @tokens[i - <span class="hljs-number">1</span>].newLine
+      token[<span class="hljs-number">0</span>] <span class="hljs-keyword">in</span> CALL_CLOSERS <span class="hljs-keyword">and</span>
+      (@tokens[i - <span class="hljs-number">1</span>].newLine <span class="hljs-keyword">or</span> @tokens[i - <span class="hljs-number">1</span>][<span class="hljs-number">0</span>] <span class="hljs-keyword">is</span> <span class="hljs-string">'OUTDENT'</span>)
 <span class="hljs-function">
     <span class="hljs-title">action</span> = <span class="hljs-params">(token, i)</span> -&gt;</span>
       @tokens.splice (<span class="hljs-keyword">if</span> @tag(i - <span class="hljs-number">1</span>) <span class="hljs-keyword">is</span> <span class="hljs-string">','</span> <span class="hljs-keyword">then</span> i - <span class="hljs-number">1</span> <span class="hljs-keyword">else</span> i), <span class="hljs-number">0</span>, outdent
@@ -960,11 +980,11 @@ blocks are added.</p>
         </li>
         
         
-        <li id="section-37">
+        <li id="section-38">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-37">&#182;</a>
+                <a class="pilcrow" href="#section-38">&#182;</a>
               </div>
               <p>Tag postfix conditionals as such, so that we can parse them with a
 different precedence.</p>
@@ -993,11 +1013,11 @@ different precedence.</p>
         </li>
         
         
-        <li id="section-38">
+        <li id="section-39">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-38">&#182;</a>
+                <a class="pilcrow" href="#section-39">&#182;</a>
               </div>
               <p>Generate the indentation tokens, based on another token on the same line.</p>
 
@@ -1018,11 +1038,11 @@ different precedence.</p>
         </li>
         
         
-        <li id="section-39">
+        <li id="section-40">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-39">&#182;</a>
+                <a class="pilcrow" href="#section-40">&#182;</a>
               </div>
               <p>Look up a tag by token index.</p>
 
@@ -1033,26 +1053,14 @@ different precedence.</p>
         </li>
         
         
-        <li id="section-40">
-            <div class="annotation">
-              
-              <div class="pilwrap ">
-                <a class="pilcrow" href="#section-40">&#182;</a>
-              </div>
-              <h2 id="constants">Constants</h2>
-
-            </div>
-            
-        </li>
-        
-        
         <li id="section-41">
             <div class="annotation">
               
               <div class="pilwrap ">
                 <a class="pilcrow" href="#section-41">&#182;</a>
               </div>
-              
+              <h2 id="constants">Constants</h2>
+
             </div>
             
         </li>
@@ -1064,6 +1072,18 @@ different precedence.</p>
               <div class="pilwrap ">
                 <a class="pilcrow" href="#section-42">&#182;</a>
               </div>
+              
+            </div>
+            
+        </li>
+        
+        
+        <li id="section-43">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-43">&#182;</a>
+              </div>
               <p>List of the token pairs that must be balanced.</p>
 
             </div>
@@ -1083,11 +1103,11 @@ different precedence.</p>
         </li>
         
         
-        <li id="section-43">
+        <li id="section-44">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-43">&#182;</a>
+                <a class="pilcrow" href="#section-44">&#182;</a>
               </div>
               <p>The inverse mappings of <code>BALANCED_PAIRS</code> we’re trying to fix up, so we can
 look things up from either end.</p>
@@ -1099,11 +1119,11 @@ look things up from either end.</p>
         </li>
         
         
-        <li id="section-44">
+        <li id="section-45">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-44">&#182;</a>
+                <a class="pilcrow" href="#section-45">&#182;</a>
               </div>
               <p>The tokens that signal the start/end of a balanced pair.</p>
 
@@ -1119,11 +1139,11 @@ EXPRESSION_END   = []
         </li>
         
         
-        <li id="section-45">
+        <li id="section-46">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-45">&#182;</a>
+                <a class="pilcrow" href="#section-46">&#182;</a>
               </div>
               <p>Tokens that indicate the close of a clause of an expression.</p>
 
@@ -1134,11 +1154,11 @@ EXPRESSION_END   = []
         </li>
         
         
-        <li id="section-46">
+        <li id="section-47">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-46">&#182;</a>
+                <a class="pilcrow" href="#section-47">&#182;</a>
               </div>
               <p>Tokens that, if followed by an <code>IMPLICIT_CALL</code>, indicate a function invocation.</p>
 
@@ -1149,11 +1169,11 @@ EXPRESSION_END   = []
         </li>
         
         
-        <li id="section-47">
+        <li id="section-48">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-47">&#182;</a>
+                <a class="pilcrow" href="#section-48">&#182;</a>
               </div>
               <p>If preceded by an <code>IMPLICIT_FUNC</code>, indicates a function invocation.</p>
 
@@ -1173,11 +1193,11 @@ IMPLICIT_UNSPACED_CALL = [<span class="hljs-string">'+'</span>, <span class="hlj
         </li>
         
         
-        <li id="section-48">
+        <li id="section-49">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-48">&#182;</a>
+                <a class="pilcrow" href="#section-49">&#182;</a>
               </div>
               <p>Tokens that always mark the end of an implicit call for single-liners.</p>
 
@@ -1189,11 +1209,11 @@ IMPLICIT_UNSPACED_CALL = [<span class="hljs-string">'+'</span>, <span class="hlj
         </li>
         
         
-        <li id="section-49">
+        <li id="section-50">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-49">&#182;</a>
+                <a class="pilcrow" href="#section-50">&#182;</a>
               </div>
               <p>Single-line flavors of block expressions that have unclosed endings.
 The grammar can’t disambiguate them, so we insert the implicit indentation.</p>
@@ -1206,11 +1226,11 @@ SINGLE_CLOSERS   = [<span class="hljs-string">'TERMINATOR'</span>, <span class="
         </li>
         
         
-        <li id="section-50">
+        <li id="section-51">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-50">&#182;</a>
+                <a class="pilcrow" href="#section-51">&#182;</a>
               </div>
               <p>Tokens that end a line.</p>
 
@@ -1221,11 +1241,11 @@ SINGLE_CLOSERS   = [<span class="hljs-string">'TERMINATOR'</span>, <span class="
         </li>
         
         
-        <li id="section-51">
+        <li id="section-52">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-51">&#182;</a>
+                <a class="pilcrow" href="#section-52">&#182;</a>
               </div>
               <p>Tokens that close open calls when they follow a newline.</p>
 

docs/v1/annotated-source/sourcemap.html

@@ -406,7 +406,7 @@ column for the current line:</p>
               </div>
               <p>Note that SourceMap VLQ encoding is “backwards”.  MIDI-style VLQ encoding puts
 the most-significant-bit (MSB) from the original value into the MSB of the VLQ
-encoded value (see <a href="http://en.wikipedia.org/wiki/File:Uintvar_coding.svg">Wikipedia</a>).
+encoded value (see <a href="https://en.wikipedia.org/wiki/File:Uintvar_coding.svg">Wikipedia</a>).
 SourceMap VLQ does things the other way around, with the least significat four
 bits of the original value encoded into the first byte of the VLQ encoded value.</p>
 

docs/v1/browser-compiler/coffee-script.js

@@ -1,399 +1,405 @@
 /**
- * CoffeeScript Compiler v1.12.4
+ * CoffeeScript Compiler v1.12.7
  * http://coffeescript.org
  *
  * Copyright 2011, Jeremy Ashkenas
  * Released under the MIT License
  */
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-4])),e[a]));break;case 128:this.$=b.addLocationDataFn(d[a-5],d[a])(new b.ImportDeclaration(new b.ImportClause(e[a-4],e[a-2]),e[a]));break;case 129:this.$=b.addLocationDataFn(d[a-8],d[a])(new b.ImportDeclaration(new b.ImportClause(e[a-7],new b.ImportSpecifierList(e[a-4])),e[a]));break;case 133:case 153:case 168:case 184:this.$=b.addLocationDataFn(d[a-3],d[a])(e[a-2]);break;case 135:this.$=b.addLocationDataFn(d[a],d[a])(new b.ImportSpecifier(e[a]));break;case 136:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.ImportSpecifier(e[a-
-2],e[a]));break;case 137:this.$=b.addLocationDataFn(d[a],d[a])(new b.ImportSpecifier(new b.Literal(e[a])));break;case 138:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.ImportSpecifier(new b.Literal(e[a-2]),e[a]));break;case 139:this.$=b.addLocationDataFn(d[a],d[a])(new b.ImportDefaultSpecifier(e[a]));break;case 140:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.ImportNamespaceSpecifier(new b.Literal(e[a-2]),e[a]));break;case 141:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.ExportNamedDeclaration(new b.ExportSpecifierList([])));
-break;case 142:this.$=b.addLocationDataFn(d[a-4],d[a])(new b.ExportNamedDeclaration(new b.ExportSpecifierList(e[a-2])));break;case 143:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.ExportNamedDeclaration(e[a]));break;case 144:this.$=b.addLocationDataFn(d[a-3],d[a])(new b.ExportNamedDeclaration(new b.Assign(e[a-2],e[a],null,{moduleDeclaration:"export"})));break;case 145:this.$=b.addLocationDataFn(d[a-4],d[a])(new b.ExportNamedDeclaration(new b.Assign(e[a-3],e[a],null,{moduleDeclaration:"export"})));
-break;case 146:this.$=b.addLocationDataFn(d[a-5],d[a])(new b.ExportNamedDeclaration(new b.Assign(e[a-4],e[a-1],null,{moduleDeclaration:"export"})));break;case 147:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.ExportDefaultDeclaration(e[a]));break;case 148:this.$=b.addLocationDataFn(d[a-3],d[a])(new b.ExportAllDeclaration(new b.Literal(e[a-2]),e[a]));break;case 149:this.$=b.addLocationDataFn(d[a-6],d[a])(new b.ExportNamedDeclaration(new b.ExportSpecifierList(e[a-4]),e[a]));break;case 155:this.$=b.addLocationDataFn(d[a],
-d[a])(new b.ExportSpecifier(e[a]));break;case 156:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.ExportSpecifier(e[a-2],e[a]));break;case 157:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.ExportSpecifier(e[a-2],new b.Literal(e[a])));break;case 158:this.$=b.addLocationDataFn(d[a],d[a])(new b.ExportSpecifier(new b.Literal(e[a])));break;case 159:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.TaggedTemplateCall(e[a-2],e[a],e[a-1]));break;case 160:case 161:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.Call(e[a-
-2],e[a],e[a-1]));break;case 163:this.$=b.addLocationDataFn(d[a],d[a])(new b.SuperCall);break;case 164:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.SuperCall(e[a]));break;case 165:this.$=b.addLocationDataFn(d[a],d[a])(!1);break;case 166:this.$=b.addLocationDataFn(d[a],d[a])(!0);break;case 167:this.$=b.addLocationDataFn(d[a-1],d[a])([]);break;case 169:case 170:this.$=b.addLocationDataFn(d[a],d[a])(new b.Value(new b.ThisLiteral));break;case 171:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.Value(b.addLocationDataFn(d[a-
-1])(new b.ThisLiteral),[b.addLocationDataFn(d[a])(new b.Access(e[a]))],"this"));break;case 172:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.Arr([]));break;case 173:this.$=b.addLocationDataFn(d[a-3],d[a])(new b.Arr(e[a-2]));break;case 174:this.$=b.addLocationDataFn(d[a],d[a])("inclusive");break;case 175:this.$=b.addLocationDataFn(d[a],d[a])("exclusive");break;case 176:this.$=b.addLocationDataFn(d[a-4],d[a])(new b.Range(e[a-3],e[a-1],e[a-2]));break;case 177:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.Range(e[a-
-2],e[a],e[a-1]));break;case 178:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.Range(e[a-1],null,e[a]));break;case 179:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.Range(null,e[a],e[a-1]));break;case 180:this.$=b.addLocationDataFn(d[a],d[a])(new b.Range(null,null,e[a]));break;case 190:this.$=b.addLocationDataFn(d[a-2],d[a])([].concat(e[a-2],e[a]));break;case 191:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.Try(e[a]));break;case 192:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.Try(e[a-1],e[a][0],
-e[a][1]));break;case 193:this.$=b.addLocationDataFn(d[a-3],d[a])(new b.Try(e[a-2],null,null,e[a]));break;case 194:this.$=b.addLocationDataFn(d[a-4],d[a])(new b.Try(e[a-3],e[a-2][0],e[a-2][1],e[a]));break;case 195:this.$=b.addLocationDataFn(d[a-2],d[a])([e[a-1],e[a]]);break;case 196:this.$=b.addLocationDataFn(d[a-2],d[a])([b.addLocationDataFn(d[a-1])(new b.Value(e[a-1])),e[a]]);break;case 197:this.$=b.addLocationDataFn(d[a-1],d[a])([null,e[a]]);break;case 198:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.Throw(e[a]));
-break;case 199:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.Parens(e[a-1]));break;case 200:this.$=b.addLocationDataFn(d[a-4],d[a])(new b.Parens(e[a-2]));break;case 201:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.While(e[a]));break;case 202:this.$=b.addLocationDataFn(d[a-3],d[a])(new b.While(e[a-2],{guard:e[a]}));break;case 203:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.While(e[a],{invert:!0}));break;case 204:this.$=b.addLocationDataFn(d[a-3],d[a])(new b.While(e[a-2],{invert:!0,guard:e[a]}));
-break;case 205:this.$=b.addLocationDataFn(d[a-1],d[a])(e[a-1].addBody(e[a]));break;case 206:case 207:this.$=b.addLocationDataFn(d[a-1],d[a])(e[a].addBody(b.addLocationDataFn(d[a-1])(b.Block.wrap([e[a-1]]))));break;case 208:this.$=b.addLocationDataFn(d[a],d[a])(e[a]);break;case 209:this.$=b.addLocationDataFn(d[a-1],d[a])((new b.While(b.addLocationDataFn(d[a-1])(new b.BooleanLiteral("true")))).addBody(e[a]));break;case 210:this.$=b.addLocationDataFn(d[a-1],d[a])((new b.While(b.addLocationDataFn(d[a-
-1])(new b.BooleanLiteral("true")))).addBody(b.addLocationDataFn(d[a])(b.Block.wrap([e[a]]))));break;case 211:case 212:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.For(e[a-1],e[a]));break;case 213:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.For(e[a],e[a-1]));break;case 214:this.$=b.addLocationDataFn(d[a-1],d[a])({source:b.addLocationDataFn(d[a])(new b.Value(e[a]))});break;case 215:this.$=b.addLocationDataFn(d[a-3],d[a])({source:b.addLocationDataFn(d[a-2])(new b.Value(e[a-2])),step:e[a]});break;
-case 216:b=b.addLocationDataFn(d[a-1],d[a]);e[a].own=e[a-1].own;e[a].ownTag=e[a-1].ownTag;e[a].name=e[a-1][0];e[a].index=e[a-1][1];this.$=b(e[a]);break;case 217:this.$=b.addLocationDataFn(d[a-1],d[a])(e[a]);break;case 218:c=b.addLocationDataFn(d[a-2],d[a]);e[a].own=!0;e[a].ownTag=b.addLocationDataFn(d[a-1])(new b.Literal(e[a-1]));this.$=c(e[a]);break;case 224:this.$=b.addLocationDataFn(d[a-2],d[a])([e[a-2],e[a]]);break;case 225:this.$=b.addLocationDataFn(d[a-1],d[a])({source:e[a]});break;case 226:this.$=
-b.addLocationDataFn(d[a-1],d[a])({source:e[a],object:!0});break;case 227:this.$=b.addLocationDataFn(d[a-3],d[a])({source:e[a-2],guard:e[a]});break;case 228:this.$=b.addLocationDataFn(d[a-3],d[a])({source:e[a-2],guard:e[a],object:!0});break;case 229:this.$=b.addLocationDataFn(d[a-3],d[a])({source:e[a-2],step:e[a]});break;case 230:this.$=b.addLocationDataFn(d[a-5],d[a])({source:e[a-4],guard:e[a-2],step:e[a]});break;case 231:this.$=b.addLocationDataFn(d[a-5],d[a])({source:e[a-4],step:e[a-2],guard:e[a]});
-break;case 232:this.$=b.addLocationDataFn(d[a-1],d[a])({source:e[a],from:!0});break;case 233:this.$=b.addLocationDataFn(d[a-3],d[a])({source:e[a-2],guard:e[a],from:!0});break;case 234:this.$=b.addLocationDataFn(d[a-4],d[a])(new b.Switch(e[a-3],e[a-1]));break;case 235:this.$=b.addLocationDataFn(d[a-6],d[a])(new b.Switch(e[a-5],e[a-3],e[a-1]));break;case 236:this.$=b.addLocationDataFn(d[a-3],d[a])(new b.Switch(null,e[a-1]));break;case 237:this.$=b.addLocationDataFn(d[a-5],d[a])(new b.Switch(null,e[a-
-3],e[a-1]));break;case 239:this.$=b.addLocationDataFn(d[a-1],d[a])(e[a-1].concat(e[a]));break;case 240:this.$=b.addLocationDataFn(d[a-2],d[a])([[e[a-1],e[a]]]);break;case 241:this.$=b.addLocationDataFn(d[a-3],d[a])([[e[a-2],e[a-1]]]);break;case 242:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.If(e[a-1],e[a],{type:e[a-2]}));break;case 243:this.$=b.addLocationDataFn(d[a-4],d[a])(e[a-4].addElse(b.addLocationDataFn(d[a-2],d[a])(new b.If(e[a-1],e[a],{type:e[a-2]}))));break;case 245:this.$=b.addLocationDataFn(d[a-
-2],d[a])(e[a-2].addElse(e[a]));break;case 246:case 247:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.If(e[a],b.addLocationDataFn(d[a-2])(b.Block.wrap([e[a-2]])),{type:e[a-1],statement:!0}));break;case 250:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.Op("-",e[a]));break;case 251:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.Op("+",e[a]));break;case 252:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.Op("--",e[a]));break;case 253:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.Op("++",e[a]));break;case 254:this.$=
-b.addLocationDataFn(d[a-1],d[a])(new b.Op("--",e[a-1],null,!0));break;case 255:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.Op("++",e[a-1],null,!0));break;case 256:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.Existence(e[a-1]));break;case 257:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.Op("+",e[a-2],e[a]));break;case 258:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.Op("-",e[a-2],e[a]));break;case 259:case 260:case 261:case 262:case 263:case 264:case 265:case 266:case 267:case 268:this.$=b.addLocationDataFn(d[a-
-2],d[a])(new b.Op(e[a-1],e[a-2],e[a]));break;case 269:d=b.addLocationDataFn(d[a-2],d[a]);e="!"===e[a-1].charAt(0)?(new b.Op(e[a-1].slice(1),e[a-2],e[a])).invert():new b.Op(e[a-1],e[a-2],e[a]);this.$=d(e);break;case 270:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.Assign(e[a-2],e[a],e[a-1]));break;case 271:this.$=b.addLocationDataFn(d[a-4],d[a])(new b.Assign(e[a-4],e[a-1],e[a-3]));break;case 272:this.$=b.addLocationDataFn(d[a-3],d[a])(new b.Assign(e[a-3],e[a],e[a-2]));break;case 273:this.$=b.addLocationDataFn(d[a-
-2],d[a])(new b.Extends(e[a-2],e[a]))}},table:[{1:[2,1],3:1,4:2,5:3,7:4,8:5,9:6,10:20,11:21,12:c,13:23,14:24,15:7,16:8,17:9,18:10,19:11,20:12,21:13,22:14,23:15,24:16,25:17,26:18,27:19,28:u,33:70,34:f,37:55,38:D,39:80,40:l,41:w,43:57,44:G,45:F,47:27,48:x,49:v,50:M,51:N,52:J,53:r,54:26,60:71,61:E,62:O,63:m,66:33,67:k,68:t,74:53,75:54,77:40,79:28,80:29,81:30,92:p,95:h,97:y,105:P,111:31,112:A,117:H,118:U,119:T,125:I,129:aa,130:S,132:43,133:z,135:B,136:44,137:W,138:45,139:C,141:77,149:Q,154:41,155:X,157:Y,
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+"CALL_END"],["PARAM_START","PARAM_END"],["INDEX_START","INDEX_END"],["STRING_START","STRING_END"],["REGEX_START","REGEX_END"]];e.INVERSES=u={};var f=[];var k=[];var t=0;for(r=za.length;t<r;t++){var p=za[t];var z=p[0];p=p[1];f.push(u[p]=z);k.push(u[z]=p)}var I=["CATCH","THEN","ELSE","FINALLY"].concat(k);var J="IDENTIFIER PROPERTY SUPER ) CALL_END ] INDEX_END @ THIS".split(" ");var F="IDENTIFIER PROPERTY NUMBER INFINITY NAN STRING STRING_START REGEX REGEX_START JS NEW PARAM_START CLASS IF TRY SWITCH THIS UNDEFINED NULL BOOL UNARY YIELD UNARY_MATH SUPER THROW @ -\x3e \x3d\x3e [ ( { -- ++".split(" ");
+var N=["+","-"];var y="POST_IF FOR WHILE UNTIL WHEN BY LOOP TERMINATOR".split(" ");var G="ELSE -\x3e \x3d\x3e TRY FINALLY THEN".split(" ");var O="TERMINATOR CATCH FINALLY ELSE OUTDENT LEADING_WHEN".split(" ");var Q=["TERMINATOR","INDENT","OUTDENT"];var B=[".","?.","::","?::"]}).call(this);return e}();u["./lexer"]=function(){var e={};(function(){var ra,r=[].indexOf||function(a){for(var b=0,c=this.length;b<c;b++)if(b in this&&this[b]===a)return b;return-1},x=[].slice;var a=u("./rewriter");var b=a.Rewriter;
+var za=a.INVERSES;a=u("./helpers");var f=a.count;var k=a.repeat;var t=a.invertLiterate;var p=a.throwSyntaxError;e.Lexer=function(){function a(){}a.prototype.tokenize=function(a,c){var f,Da;null==c&&(c={});this.literate=c.literate;this.outdebt=this.indebt=this.baseIndent=this.indent=0;this.indents=[];this.ends=[];this.tokens=[];this.exportSpecifierList=this.importSpecifierList=this.seenExport=this.seenImport=this.seenFor=!1;this.chunkLine=c.line||0;this.chunkColumn=c.column||0;a=this.clean(a);for(Da=
+0;this.chunk=a.slice(Da);){var n=this.identifierToken()||this.commentToken()||this.whitespaceToken()||this.lineToken()||this.stringToken()||this.numberToken()||this.regexToken()||this.jsToken()||this.literalToken();var h=this.getLineAndColumnFromChunk(n);this.chunkLine=h[0];this.chunkColumn=h[1];Da+=n;if(c.untilBalanced&&0===this.ends.length)return{tokens:this.tokens,index:Da}}this.closeIndentation();(f=this.ends.pop())&&this.error("missing "+f.tag,f.origin[2]);return!1===c.rewrite?this.tokens:(new b).rewrite(this.tokens)};
+a.prototype.clean=function(a){a.charCodeAt(0)===Q&&(a=a.slice(1));a=a.replace(/\r/g,"").replace(Y,"");w.test(a)&&(a="\n"+a,this.chunkLine--);this.literate&&(a=t(a));return a};a.prototype.identifierToken=function(){var a,b,c,f,n,h,q;if(!(a=B.exec(this.chunk)))return 0;var e=a[0];var k=a[1];a=a[2];var x=k.length;var w=void 0;if("own"===k&&"FOR"===this.tag())return this.token("OWN",k),k.length;if("from"===k&&"YIELD"===this.tag())return this.token("FROM",k),k.length;if("as"===k&&this.seenImport){if("*"===
+this.value())this.tokens[this.tokens.length-1][0]="IMPORT_ALL";else if(b=this.value(),0<=r.call(F,b))this.tokens[this.tokens.length-1][0]="IDENTIFIER";if("DEFAULT"===(c=this.tag())||"IMPORT_ALL"===c||"IDENTIFIER"===c)return this.token("AS",k),k.length}if("as"===k&&this.seenExport&&("IDENTIFIER"===(f=this.tag())||"DEFAULT"===f))return this.token("AS",k),k.length;if("default"===k&&this.seenExport&&("EXPORT"===(n=this.tag())||"AS"===n))return this.token("DEFAULT",k),k.length;b=this.tokens;b=b[b.length-
+1];var p=a||null!=b&&("."===(h=b[0])||"?."===h||"::"===h||"?::"===h||!b.spaced&&"@"===b[0])?"PROPERTY":"IDENTIFIER";"IDENTIFIER"!==p||!(0<=r.call(J,k)||0<=r.call(F,k))||this.exportSpecifierList&&0<=r.call(F,k)?"IDENTIFIER"===p&&this.seenFor&&"from"===k&&I(b)&&(p="FORFROM",this.seenFor=!1):(p=k.toUpperCase(),"WHEN"===p&&(q=this.tag(),0<=r.call(sa,q))?p="LEADING_WHEN":"FOR"===p?this.seenFor=!0:"UNLESS"===p?p="IF":"IMPORT"===p?this.seenImport=!0:"EXPORT"===p?this.seenExport=!0:0<=r.call(ia,p)?p="UNARY":
+0<=r.call(qa,p)&&("INSTANCEOF"!==p&&this.seenFor?(p="FOR"+p,this.seenFor=!1):(p="RELATION","!"===this.value()&&(w=this.tokens.pop(),k="!"+k))));"IDENTIFIER"===p&&0<=r.call(G,k)&&this.error("reserved word '"+k+"'",{length:k.length});if("PROPERTY"!==p){if(0<=r.call(y,k)){var t=k;k=N[k]}p=function(){switch(k){case "!":return"UNARY";case "\x3d\x3d":case "!\x3d":return"COMPARE";case "true":case "false":return"BOOL";case "break":case "continue":case "debugger":return"STATEMENT";case "\x26\x26":case "||":return k;
+default:return p}}()}h=this.token(p,k,0,x);t&&(h.origin=[p,t,h[2]]);w&&(t=[w[2].first_line,w[2].first_column],h[2].first_line=t[0],h[2].first_column=t[1]);a&&(t=e.lastIndexOf(":"),this.token(":",":",t,a.length));return e.length};a.prototype.numberToken=function(){var a,b;if(!(a=n.exec(this.chunk)))return 0;var c=a[0];a=c.length;switch(!1){case !/^0[BOX]/.test(c):this.error("radix prefix in '"+c+"' must be lowercase",{offset:1});break;case !/^(?!0x).*E/.test(c):this.error("exponential notation in '"+
+c+"' must be indicated with a lowercase 'e'",{offset:c.indexOf("E")});break;case !/^0\d*[89]/.test(c):this.error("decimal literal '"+c+"' must not be prefixed with '0'",{length:a});break;case !/^0\d+/.test(c):this.error("octal literal '"+c+"' must be prefixed with '0o'",{length:a})}var f=function(){switch(c.charAt(1)){case "b":return 2;case "o":return 8;case "x":return 16;default:return null}}();f=null!=f?parseInt(c.slice(2),f):parseFloat(c);if("b"===(b=c.charAt(1))||"o"===b)c="0x"+f.toString(16);
+this.token(Infinity===f?"INFINITY":"NUMBER",c,0,a);return a};a.prototype.stringToken=function(){var a,b,c,f,n;var h=(U.exec(this.chunk)||[])[0];if(!h)return 0;this.tokens.length&&"from"===this.value()&&(this.seenImport||this.seenExport)&&(this.tokens[this.tokens.length-1][0]="FROM");var k=function(){switch(h){case "'":return W;case '"':return H;case "'''":return Z;case '"""':return T}}();var q=3===h.length;k=this.matchWithInterpolations(k,h);var e=k.tokens;var p=k.index;var x=e.length-1;k=h.charAt(0);
+if(q){var w=null;for(q=function(){var a,c;var m=[];b=a=0;for(c=e.length;a<c;b=++a)n=e[b],"NEOSTRING"===n[0]&&m.push(n[1]);return m}().join("#{}");a=A.exec(q);)if(a=a[1],null===w||0<(f=a.length)&&f<w.length)w=a;w&&(c=RegExp("\\n"+w,"g"));this.mergeInterpolationTokens(e,{delimiter:k},function(a){return function(b,m){b=a.formatString(b,{delimiter:h});c&&(b=b.replace(c,"\n"));0===m&&(b=b.replace(Aa,""));m===x&&(b=b.replace(ma,""));return b}}(this))}else this.mergeInterpolationTokens(e,{delimiter:k},function(a){return function(b,
+m){b=a.formatString(b,{delimiter:h});return b=b.replace(D,function(a,d){return 0===m&&0===d||m===x&&d+a.length===b.length?"":" "})}}(this));return p};a.prototype.commentToken=function(){var a,b;if(!(b=this.chunk.match(q)))return 0;var c=b[0];if(a=b[1])(b=X.exec(c))&&this.error("block comments cannot contain "+b[0],{offset:b.index,length:b[0].length}),0<=a.indexOf("\n")&&(a=a.replace(RegExp("\\n"+k(" ",this.indent),"g"),"\n")),this.token("HERECOMMENT",a,0,c.length);return c.length};a.prototype.jsToken=
+function(){var a;if("`"!==this.chunk.charAt(0)||!(a=L.exec(this.chunk)||P.exec(this.chunk)))return 0;var b=a[1].replace(/\\+(`|$)/g,function(a){return a.slice(-Math.ceil(a.length/2))});this.token("JS",b,0,a[0].length);return a[0].length};a.prototype.regexToken=function(){var a,b,c;switch(!1){case !(a=S.exec(this.chunk)):this.error("regular expressions cannot begin with "+a[2],{offset:a.index+a[1].length});break;case !(a=this.matchWithInterpolations(ba,"///")):var f=a.tokens;var h=a.index;break;case !(a=
+ic.exec(this.chunk)):var n=a[0];var k=a[1];a=a[2];this.validateEscapes(k,{isRegex:!0,offsetInChunk:1});k=this.formatRegex(k,{delimiter:"/"});h=n.length;var q=this.tokens;if(q=q[q.length-1])if(q.spaced&&(b=q[0],0<=r.call(ha,b))){if(!a||v.test(n))return 0}else if(c=q[0],0<=r.call(oa,c))return 0;a||this.error("missing / (unclosed regex)");break;default:return 0}c=E.exec(this.chunk.slice(h))[0];b=h+c.length;a=this.makeToken("REGEX",null,0,b);switch(!1){case !!aa.test(c):this.error("invalid regular expression flags "+
+c,{offset:h,length:c.length});break;case !(n||1===f.length):null==k&&(k=this.formatHeregex(f[0][1]));this.token("REGEX",""+this.makeDelimitedLiteral(k,{delimiter:"/"})+c,0,b,a);break;default:this.token("REGEX_START","(",0,0,a),this.token("IDENTIFIER","RegExp",0,0),this.token("CALL_START","(",0,0),this.mergeInterpolationTokens(f,{delimiter:'"',double:!0},this.formatHeregex),c&&(this.token(",",",",h-1,0),this.token("STRING",'"'+c+'"',h-1,c.length)),this.token(")",")",b-1,0),this.token("REGEX_END",")",
+b-1,0)}return b};a.prototype.lineToken=function(){var a;if(!(a=K.exec(this.chunk)))return 0;a=a[0];this.seenFor=!1;this.importSpecifierList||(this.seenImport=!1);this.exportSpecifierList||(this.seenExport=!1);var b=a.length-1-a.lastIndexOf("\n");var c=this.unfinished();if(b-this.indebt===this.indent)return c?this.suppressNewlines():this.newlineToken(0),a.length;if(b>this.indent){if(c)return this.indebt=b-this.indent,this.suppressNewlines(),a.length;if(!this.tokens.length)return this.baseIndent=this.indent=
+b,a.length;c=b-this.indent+this.outdebt;this.token("INDENT",c,a.length-b,b);this.indents.push(c);this.ends.push({tag:"OUTDENT"});this.outdebt=this.indebt=0;this.indent=b}else b<this.baseIndent?this.error("missing indentation",{offset:a.length}):(this.indebt=0,this.outdentToken(this.indent-b,c,a.length));return a.length};a.prototype.outdentToken=function(a,b,c){var f,h,n;for(f=this.indent-a;0<a;)if(h=this.indents[this.indents.length-1])if(h===this.outdebt)a-=this.outdebt,this.outdebt=0;else if(h<this.outdebt)this.outdebt-=
+h,a-=h;else{var k=this.indents.pop()+this.outdebt;c&&(n=this.chunk[c],0<=r.call(ca,n))&&(f-=k-a,a=k);this.outdebt=0;this.pair("OUTDENT");this.token("OUTDENT",a,0,c);a-=k}else a=0;k&&(this.outdebt-=a);for(;";"===this.value();)this.tokens.pop();"TERMINATOR"===this.tag()||b||this.token("TERMINATOR","\n",c,0);this.indent=f;return this};a.prototype.whitespaceToken=function(){var a;if(!(a=w.exec(this.chunk))&&"\n"!==this.chunk.charAt(0))return 0;var b=this.tokens;(b=b[b.length-1])&&(b[a?"spaced":"newLine"]=
+!0);return a?a[0].length:0};a.prototype.newlineToken=function(a){for(;";"===this.value();)this.tokens.pop();"TERMINATOR"!==this.tag()&&this.token("TERMINATOR","\n",a,0);return this};a.prototype.suppressNewlines=function(){"\\"===this.value()&&this.tokens.pop();return this};a.prototype.literalToken=function(){var a,b,f,n,k;(a=c.exec(this.chunk))?(a=a[0],h.test(a)&&this.tagParameters()):a=this.chunk.charAt(0);var q=a;var e=this.tokens;if((e=e[e.length-1])&&0<=r.call(["\x3d"].concat(x.call(ea)),a)){var p=
+!1;"\x3d"!==a||"||"!==(f=e[1])&&"\x26\x26"!==f||e.spaced||(e[0]="COMPOUND_ASSIGN",e[1]+="\x3d",e=this.tokens[this.tokens.length-2],p=!0);e&&"PROPERTY"!==e[0]&&(f=null!=(b=e.origin)?b:e,(b=z(e[1],f[1]))&&this.error(b,f[2]));if(p)return a.length}"{"===a&&this.seenImport?this.importSpecifierList=!0:this.importSpecifierList&&"}"===a?this.importSpecifierList=!1:"{"===a&&"EXPORT"===(null!=e?e[0]:void 0)?this.exportSpecifierList=!0:this.exportSpecifierList&&"}"===a&&(this.exportSpecifierList=!1);if(";"===
+a)this.seenFor=this.seenImport=this.seenExport=!1,q="TERMINATOR";else if("*"===a&&"EXPORT"===e[0])q="EXPORT_ALL";else if(0<=r.call(pa,a))q="MATH";else if(0<=r.call(la,a))q="COMPARE";else if(0<=r.call(ea,a))q="COMPOUND_ASSIGN";else if(0<=r.call(ia,a))q="UNARY";else if(0<=r.call(fa,a))q="UNARY_MATH";else if(0<=r.call(ja,a))q="SHIFT";else if("?"===a&&null!=e&&e.spaced)q="BIN?";else if(e&&!e.spaced)if("("===a&&(n=e[0],0<=r.call(ha,n)))"?"===e[0]&&(e[0]="FUNC_EXIST"),q="CALL_START";else if("["===a&&(k=
+e[0],0<=r.call(ka,k)))switch(q="INDEX_START",e[0]){case "?":e[0]="INDEX_SOAK"}n=this.makeToken(q,a);switch(a){case "(":case "{":case "[":this.ends.push({tag:za[a],origin:n});break;case ")":case "}":case "]":this.pair(a)}this.tokens.push(n);return a.length};a.prototype.tagParameters=function(){var a;if(")"!==this.tag())return this;var b=[];var c=this.tokens;var f=c.length;for(c[--f][0]="PARAM_END";a=c[--f];)switch(a[0]){case ")":b.push(a);break;case "(":case "CALL_START":if(b.length)b.pop();else return"("===
+a[0]&&(a[0]="PARAM_START"),this}return this};a.prototype.closeIndentation=function(){return this.outdentToken(this.indent)};a.prototype.matchWithInterpolations=function(b,c){var f,h;var n=[];var k=c.length;if(this.chunk.slice(0,k)!==c)return null;for(h=this.chunk.slice(k);;){var e=b.exec(h)[0];this.validateEscapes(e,{isRegex:"/"===c.charAt(0),offsetInChunk:k});n.push(this.makeToken("NEOSTRING",e,k));h=h.slice(e.length);k+=e.length;if("#{"!==h.slice(0,2))break;var q=this.getLineAndColumnFromChunk(k+
+1);e=q[0];q=q[1];q=(new a).tokenize(h.slice(1),{line:e,column:q,untilBalanced:!0});e=q.tokens;var p=q.index;p+=1;var x=e[0];q=e[e.length-1];x[0]=x[1]="(";q[0]=q[1]=")";q.origin=["","end of interpolation",q[2]];"TERMINATOR"===(null!=(f=e[1])?f[0]:void 0)&&e.splice(1,1);n.push(["TOKENS",e]);h=h.slice(p);k+=p}h.slice(0,c.length)!==c&&this.error("missing "+c,{length:c.length});b=n[0];f=n[n.length-1];b[2].first_column-=c.length;"\n"===f[1].substr(-1)?(f[2].last_line+=1,f[2].last_column=c.length-1):f[2].last_column+=
+c.length;0===f[1].length&&--f[2].last_column;return{tokens:n,index:k+c.length}};a.prototype.mergeInterpolationTokens=function(a,b,c){var f,h,n,k;1<a.length&&(n=this.token("STRING_START","(",0,0));var e=this.tokens.length;var q=f=0;for(h=a.length;f<h;q=++f){var p=a[q];var x=p[0];var w=p[1];switch(x){case "TOKENS":if(2===w.length)continue;var t=w[0];var Ia=w;break;case "NEOSTRING":x=c.call(this,p[1],q);if(0===x.length)if(0===q)var m=this.tokens.length;else continue;2===q&&null!=m&&this.tokens.splice(m,
+2);p[0]="STRING";p[1]=this.makeDelimitedLiteral(x,b);t=p;Ia=[p]}this.tokens.length>e&&(q=this.token("+","+"),q[2]={first_line:t[2].first_line,first_column:t[2].first_column,last_line:t[2].first_line,last_column:t[2].first_column});(k=this.tokens).push.apply(k,Ia)}if(n)return a=a[a.length-1],n.origin=["STRING",null,{first_line:n[2].first_line,first_column:n[2].first_column,last_line:a[2].last_line,last_column:a[2].last_column}],n=this.token("STRING_END",")"),n[2]={first_line:a[2].last_line,first_column:a[2].last_column,
+last_line:a[2].last_line,last_column:a[2].last_column}};a.prototype.pair=function(a){var b=this.ends;b=b[b.length-1];return a!==(b=null!=b?b.tag:void 0)?("OUTDENT"!==b&&this.error("unmatched "+a),b=this.indents,b=b[b.length-1],this.outdentToken(b,!0),this.pair(a)):this.ends.pop()};a.prototype.getLineAndColumnFromChunk=function(a){if(0===a)return[this.chunkLine,this.chunkColumn];var b=a>=this.chunk.length?this.chunk:this.chunk.slice(0,+(a-1)+1||9E9);a=f(b,"\n");var c=this.chunkColumn;0<a?(c=b.split("\n"),
+c=c[c.length-1],c=c.length):c+=b.length;return[this.chunkLine+a,c]};a.prototype.makeToken=function(a,b,c,f){null==c&&(c=0);null==f&&(f=b.length);var h={};var n=this.getLineAndColumnFromChunk(c);h.first_line=n[0];h.first_column=n[1];c=this.getLineAndColumnFromChunk(c+(0<f?f-1:0));h.last_line=c[0];h.last_column=c[1];return[a,b,h]};a.prototype.token=function(a,b,c,f,h){a=this.makeToken(a,b,c,f);h&&(a.origin=h);this.tokens.push(a);return a};a.prototype.tag=function(){var a=this.tokens;a=a[a.length-1];
+return null!=a?a[0]:void 0};a.prototype.value=function(){var a=this.tokens;a=a[a.length-1];return null!=a?a[1]:void 0};a.prototype.unfinished=function(){var a;return R.test(this.chunk)||(a=this.tag(),0<=r.call(xa,a))};a.prototype.formatString=function(a,b){return this.replaceUnicodeCodePointEscapes(a.replace(V,"$1"),b)};a.prototype.formatHeregex=function(a){return this.formatRegex(a.replace(C,"$1$2"),{delimiter:"///"})};a.prototype.formatRegex=function(a,b){return this.replaceUnicodeCodePointEscapes(a,
+b)};a.prototype.unicodeCodePointToUnicodeEscapes=function(a){var b=function(a){a=a.toString(16);return"\\u"+k("0",4-a.length)+a};if(65536>a)return b(a);var c=Math.floor((a-65536)/1024)+55296;a=(a-65536)%1024+56320;return""+b(c)+b(a)};a.prototype.replaceUnicodeCodePointEscapes=function(a,b){return a.replace(ta,function(a){return function(c,f,h,n){if(f)return f;c=parseInt(h,16);1114111<c&&a.error("unicode code point escapes greater than \\u{10ffff} are not allowed",{offset:n+b.delimiter.length,length:h.length+
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+case 39:this.$=d.addLocationDataFn(g[a-2],g[a])(new d.RegexWithInterpolations(b[a-1].args));break;case 41:this.$=d.addLocationDataFn(g[a],g[a])(new d.PassthroughLiteral(b[a]));break;case 43:this.$=d.addLocationDataFn(g[a],g[a])(new d.UndefinedLiteral);break;case 44:this.$=d.addLocationDataFn(g[a],g[a])(new d.NullLiteral);break;case 45:this.$=d.addLocationDataFn(g[a],g[a])(new d.BooleanLiteral(b[a]));break;case 46:this.$=d.addLocationDataFn(g[a],g[a])(new d.InfinityLiteral(b[a]));break;case 47:this.$=
+d.addLocationDataFn(g[a],g[a])(new d.NaNLiteral);break;case 48:this.$=d.addLocationDataFn(g[a-2],g[a])(new d.Assign(b[a-2],b[a]));break;case 49:this.$=d.addLocationDataFn(g[a-3],g[a])(new d.Assign(b[a-3],b[a]));break;case 50:this.$=d.addLocationDataFn(g[a-4],g[a])(new d.Assign(b[a-4],b[a-1]));break;case 51:case 88:case 93:case 94:case 96:case 97:case 98:case 223:case 224:this.$=d.addLocationDataFn(g[a],g[a])(new d.Value(b[a]));break;case 52:this.$=d.addLocationDataFn(g[a-2],g[a])(new d.Assign(d.addLocationDataFn(g[a-
+2])(new d.Value(b[a-2])),b[a],"object",{operatorToken:d.addLocationDataFn(g[a-1])(new d.Literal(b[a-1]))}));break;case 53:this.$=d.addLocationDataFn(g[a-4],g[a])(new d.Assign(d.addLocationDataFn(g[a-4])(new d.Value(b[a-4])),b[a-1],"object",{operatorToken:d.addLocationDataFn(g[a-3])(new d.Literal(b[a-3]))}));break;case 54:this.$=d.addLocationDataFn(g[a-2],g[a])(new d.Assign(d.addLocationDataFn(g[a-2])(new d.Value(b[a-2])),b[a],null,{operatorToken:d.addLocationDataFn(g[a-1])(new d.Literal(b[a-1]))}));
+break;case 55:this.$=d.addLocationDataFn(g[a-4],g[a])(new d.Assign(d.addLocationDataFn(g[a-4])(new d.Value(b[a-4])),b[a-1],null,{operatorToken:d.addLocationDataFn(g[a-3])(new d.Literal(b[a-3]))}));break;case 62:this.$=d.addLocationDataFn(g[a-1],g[a])(new d.Return(b[a]));break;case 63:this.$=d.addLocationDataFn(g[a-3],g[a])(new d.Return(new d.Value(b[a-1])));break;case 64:this.$=d.addLocationDataFn(g[a],g[a])(new d.Return);break;case 65:this.$=d.addLocationDataFn(g[a-2],g[a])(new d.YieldReturn(b[a]));
+break;case 66:this.$=d.addLocationDataFn(g[a-1],g[a])(new d.YieldReturn);break;case 67:this.$=d.addLocationDataFn(g[a],g[a])(new d.Comment(b[a]));break;case 68:this.$=d.addLocationDataFn(g[a-4],g[a])(new d.Code(b[a-3],b[a],b[a-1]));break;case 69:this.$=d.addLocationDataFn(g[a-1],g[a])(new d.Code([],b[a],b[a-1]));break;case 70:this.$=d.addLocationDataFn(g[a],g[a])("func");break;case 71:this.$=d.addLocationDataFn(g[a],g[a])("boundfunc");break;case 74:case 111:this.$=d.addLocationDataFn(g[a],g[a])([]);
+break;case 75:case 112:case 131:case 151:case 183:case 225:this.$=d.addLocationDataFn(g[a],g[a])([b[a]]);break;case 76:case 113:case 132:case 152:case 184:this.$=d.addLocationDataFn(g[a-2],g[a])(b[a-2].concat(b[a]));break;case 77:case 114:case 133:case 153:case 185:this.$=d.addLocationDataFn(g[a-3],g[a])(b[a-3].concat(b[a]));break;case 78:case 115:case 135:case 155:case 187:this.$=d.addLocationDataFn(g[a-5],g[a])(b[a-5].concat(b[a-2]));break;case 79:this.$=d.addLocationDataFn(g[a],g[a])(new d.Param(b[a]));
+break;case 80:this.$=d.addLocationDataFn(g[a-1],g[a])(new d.Param(b[a-1],null,!0));break;case 81:this.$=d.addLocationDataFn(g[a-2],g[a])(new d.Param(b[a-2],b[a]));break;case 82:case 190:this.$=d.addLocationDataFn(g[a],g[a])(new d.Expansion);break;case 87:this.$=d.addLocationDataFn(g[a-1],g[a])(new d.Splat(b[a-1]));break;case 89:this.$=d.addLocationDataFn(g[a-1],g[a])(b[a-1].add(b[a]));break;case 90:this.$=d.addLocationDataFn(g[a-1],g[a])(new d.Value(b[a-1],[].concat(b[a])));break;case 100:this.$=
+d.addLocationDataFn(g[a-1],g[a])(new d.Access(b[a]));break;case 101:this.$=d.addLocationDataFn(g[a-1],g[a])(new d.Access(b[a],"soak"));break;case 102:this.$=d.addLocationDataFn(g[a-1],g[a])([d.addLocationDataFn(g[a-1])(new d.Access(new d.PropertyName("prototype"))),d.addLocationDataFn(g[a])(new d.Access(b[a]))]);break;case 103:this.$=d.addLocationDataFn(g[a-1],g[a])([d.addLocationDataFn(g[a-1])(new d.Access(new d.PropertyName("prototype"),"soak")),d.addLocationDataFn(g[a])(new d.Access(b[a]))]);break;
+case 104:this.$=d.addLocationDataFn(g[a],g[a])(new d.Access(new d.PropertyName("prototype")));break;case 107:this.$=d.addLocationDataFn(g[a-1],g[a])(d.extend(b[a],{soak:!0}));break;case 108:this.$=d.addLocationDataFn(g[a],g[a])(new d.Index(b[a]));break;case 109:this.$=d.addLocationDataFn(g[a],g[a])(new d.Slice(b[a]));break;case 110:this.$=d.addLocationDataFn(g[a-3],g[a])(new d.Obj(b[a-2],b[a-3].generated));break;case 116:this.$=d.addLocationDataFn(g[a],g[a])(new d.Class);break;case 117:this.$=d.addLocationDataFn(g[a-
+1],g[a])(new d.Class(null,null,b[a]));break;case 118:this.$=d.addLocationDataFn(g[a-2],g[a])(new d.Class(null,b[a]));break;case 119:this.$=d.addLocationDataFn(g[a-3],g[a])(new d.Class(null,b[a-1],b[a]));break;case 120:this.$=d.addLocationDataFn(g[a-1],g[a])(new d.Class(b[a]));break;case 121:this.$=d.addLocationDataFn(g[a-2],g[a])(new d.Class(b[a-1],null,b[a]));break;case 122:this.$=d.addLocationDataFn(g[a-3],g[a])(new d.Class(b[a-2],b[a]));break;case 123:this.$=d.addLocationDataFn(g[a-4],g[a])(new d.Class(b[a-
+3],b[a-1],b[a]));break;case 124:this.$=d.addLocationDataFn(g[a-1],g[a])(new d.ImportDeclaration(null,b[a]));break;case 125:this.$=d.addLocationDataFn(g[a-3],g[a])(new d.ImportDeclaration(new d.ImportClause(b[a-2],null),b[a]));break;case 126:this.$=d.addLocationDataFn(g[a-3],g[a])(new d.ImportDeclaration(new d.ImportClause(null,b[a-2]),b[a]));break;case 127:this.$=d.addLocationDataFn(g[a-4],g[a])(new d.ImportDeclaration(new d.ImportClause(null,new d.ImportSpecifierList([])),b[a]));break;case 128:this.$=
+d.addLocationDataFn(g[a-6],g[a])(new d.ImportDeclaration(new d.ImportClause(null,new d.ImportSpecifierList(b[a-4])),b[a]));break;case 129:this.$=d.addLocationDataFn(g[a-5],g[a])(new d.ImportDeclaration(new d.ImportClause(b[a-4],b[a-2]),b[a]));break;case 130:this.$=d.addLocationDataFn(g[a-8],g[a])(new d.ImportDeclaration(new d.ImportClause(b[a-7],new d.ImportSpecifierList(b[a-4])),b[a]));break;case 134:case 154:case 170:case 186:this.$=d.addLocationDataFn(g[a-3],g[a])(b[a-2]);break;case 136:this.$=
+d.addLocationDataFn(g[a],g[a])(new d.ImportSpecifier(b[a]));break;case 137:this.$=d.addLocationDataFn(g[a-2],g[a])(new d.ImportSpecifier(b[a-2],b[a]));break;case 138:this.$=d.addLocationDataFn(g[a],g[a])(new d.ImportSpecifier(new d.Literal(b[a])));break;case 139:this.$=d.addLocationDataFn(g[a-2],g[a])(new d.ImportSpecifier(new d.Literal(b[a-2]),b[a]));break;case 140:this.$=d.addLocationDataFn(g[a],g[a])(new d.ImportDefaultSpecifier(b[a]));break;case 141:this.$=d.addLocationDataFn(g[a-2],g[a])(new d.ImportNamespaceSpecifier(new d.Literal(b[a-
+2]),b[a]));break;case 142:this.$=d.addLocationDataFn(g[a-2],g[a])(new d.ExportNamedDeclaration(new d.ExportSpecifierList([])));break;case 143:this.$=d.addLocationDataFn(g[a-4],g[a])(new d.ExportNamedDeclaration(new d.ExportSpecifierList(b[a-2])));break;case 144:this.$=d.addLocationDataFn(g[a-1],g[a])(new d.ExportNamedDeclaration(b[a]));break;case 145:this.$=d.addLocationDataFn(g[a-3],g[a])(new d.ExportNamedDeclaration(new d.Assign(b[a-2],b[a],null,{moduleDeclaration:"export"})));break;case 146:this.$=
+d.addLocationDataFn(g[a-4],g[a])(new d.ExportNamedDeclaration(new d.Assign(b[a-3],b[a],null,{moduleDeclaration:"export"})));break;case 147:this.$=d.addLocationDataFn(g[a-5],g[a])(new d.ExportNamedDeclaration(new d.Assign(b[a-4],b[a-1],null,{moduleDeclaration:"export"})));break;case 148:this.$=d.addLocationDataFn(g[a-2],g[a])(new d.ExportDefaultDeclaration(b[a]));break;case 149:this.$=d.addLocationDataFn(g[a-3],g[a])(new d.ExportAllDeclaration(new d.Literal(b[a-2]),b[a]));break;case 150:this.$=d.addLocationDataFn(g[a-
+6],g[a])(new d.ExportNamedDeclaration(new d.ExportSpecifierList(b[a-4]),b[a]));break;case 156:this.$=d.addLocationDataFn(g[a],g[a])(new d.ExportSpecifier(b[a]));break;case 157:this.$=d.addLocationDataFn(g[a-2],g[a])(new d.ExportSpecifier(b[a-2],b[a]));break;case 158:this.$=d.addLocationDataFn(g[a-2],g[a])(new d.ExportSpecifier(b[a-2],new d.Literal(b[a])));break;case 159:this.$=d.addLocationDataFn(g[a],g[a])(new d.ExportSpecifier(new d.Literal(b[a])));break;case 160:this.$=d.addLocationDataFn(g[a-
+2],g[a])(new d.ExportSpecifier(new d.Literal(b[a-2]),b[a]));break;case 161:this.$=d.addLocationDataFn(g[a-2],g[a])(new d.TaggedTemplateCall(b[a-2],b[a],b[a-1]));break;case 162:case 163:this.$=d.addLocationDataFn(g[a-2],g[a])(new d.Call(b[a-2],b[a],b[a-1]));break;case 165:this.$=d.addLocationDataFn(g[a],g[a])(new d.SuperCall);break;case 166:this.$=d.addLocationDataFn(g[a-1],g[a])(new d.SuperCall(b[a]));break;case 167:this.$=d.addLocationDataFn(g[a],g[a])(!1);break;case 168:this.$=d.addLocationDataFn(g[a],
+g[a])(!0);break;case 169:this.$=d.addLocationDataFn(g[a-1],g[a])([]);break;case 171:case 172:this.$=d.addLocationDataFn(g[a],g[a])(new d.Value(new d.ThisLiteral));break;case 173:this.$=d.addLocationDataFn(g[a-1],g[a])(new d.Value(d.addLocationDataFn(g[a-1])(new d.ThisLiteral),[d.addLocationDataFn(g[a])(new d.Access(b[a]))],"this"));break;case 174:this.$=d.addLocationDataFn(g[a-1],g[a])(new d.Arr([]));break;case 175:this.$=d.addLocationDataFn(g[a-3],g[a])(new d.Arr(b[a-2]));break;case 176:this.$=d.addLocationDataFn(g[a],
+g[a])("inclusive");break;case 177:this.$=d.addLocationDataFn(g[a],g[a])("exclusive");break;case 178:this.$=d.addLocationDataFn(g[a-4],g[a])(new d.Range(b[a-3],b[a-1],b[a-2]));break;case 179:this.$=d.addLocationDataFn(g[a-2],g[a])(new d.Range(b[a-2],b[a],b[a-1]));break;case 180:this.$=d.addLocationDataFn(g[a-1],g[a])(new d.Range(b[a-1],null,b[a]));break;case 181:this.$=d.addLocationDataFn(g[a-1],g[a])(new d.Range(null,b[a],b[a-1]));break;case 182:this.$=d.addLocationDataFn(g[a],g[a])(new d.Range(null,
+null,b[a]));break;case 192:this.$=d.addLocationDataFn(g[a-2],g[a])([].concat(b[a-2],b[a]));break;case 193:this.$=d.addLocationDataFn(g[a-1],g[a])(new d.Try(b[a]));break;case 194:this.$=d.addLocationDataFn(g[a-2],g[a])(new d.Try(b[a-1],b[a][0],b[a][1]));break;case 195:this.$=d.addLocationDataFn(g[a-3],g[a])(new d.Try(b[a-2],null,null,b[a]));break;case 196:this.$=d.addLocationDataFn(g[a-4],g[a])(new d.Try(b[a-3],b[a-2][0],b[a-2][1],b[a]));break;case 197:this.$=d.addLocationDataFn(g[a-2],g[a])([b[a-
+1],b[a]]);break;case 198:this.$=d.addLocationDataFn(g[a-2],g[a])([d.addLocationDataFn(g[a-1])(new d.Value(b[a-1])),b[a]]);break;case 199:this.$=d.addLocationDataFn(g[a-1],g[a])([null,b[a]]);break;case 200:this.$=d.addLocationDataFn(g[a-1],g[a])(new d.Throw(b[a]));break;case 201:this.$=d.addLocationDataFn(g[a-2],g[a])(new d.Parens(b[a-1]));break;case 202:this.$=d.addLocationDataFn(g[a-4],g[a])(new d.Parens(b[a-2]));break;case 203:this.$=d.addLocationDataFn(g[a-1],g[a])(new d.While(b[a]));break;case 204:this.$=
+d.addLocationDataFn(g[a-3],g[a])(new d.While(b[a-2],{guard:b[a]}));break;case 205:this.$=d.addLocationDataFn(g[a-1],g[a])(new d.While(b[a],{invert:!0}));break;case 206:this.$=d.addLocationDataFn(g[a-3],g[a])(new d.While(b[a-2],{invert:!0,guard:b[a]}));break;case 207:this.$=d.addLocationDataFn(g[a-1],g[a])(b[a-1].addBody(b[a]));break;case 208:case 209:this.$=d.addLocationDataFn(g[a-1],g[a])(b[a].addBody(d.addLocationDataFn(g[a-1])(d.Block.wrap([b[a-1]]))));break;case 210:this.$=d.addLocationDataFn(g[a],
+g[a])(b[a]);break;case 211:this.$=d.addLocationDataFn(g[a-1],g[a])((new d.While(d.addLocationDataFn(g[a-1])(new d.BooleanLiteral("true")))).addBody(b[a]));break;case 212:this.$=d.addLocationDataFn(g[a-1],g[a])((new d.While(d.addLocationDataFn(g[a-1])(new d.BooleanLiteral("true")))).addBody(d.addLocationDataFn(g[a])(d.Block.wrap([b[a]]))));break;case 213:case 214:this.$=d.addLocationDataFn(g[a-1],g[a])(new d.For(b[a-1],b[a]));break;case 215:this.$=d.addLocationDataFn(g[a-1],g[a])(new d.For(b[a],b[a-
+1]));break;case 216:this.$=d.addLocationDataFn(g[a-1],g[a])({source:d.addLocationDataFn(g[a])(new d.Value(b[a]))});break;case 217:this.$=d.addLocationDataFn(g[a-3],g[a])({source:d.addLocationDataFn(g[a-2])(new d.Value(b[a-2])),step:b[a]});break;case 218:d=d.addLocationDataFn(g[a-1],g[a]);b[a].own=b[a-1].own;b[a].ownTag=b[a-1].ownTag;b[a].name=b[a-1][0];b[a].index=b[a-1][1];this.$=d(b[a]);break;case 219:this.$=d.addLocationDataFn(g[a-1],g[a])(b[a]);break;case 220:Ca=d.addLocationDataFn(g[a-2],g[a]);
+b[a].own=!0;b[a].ownTag=d.addLocationDataFn(g[a-1])(new d.Literal(b[a-1]));this.$=Ca(b[a]);break;case 226:this.$=d.addLocationDataFn(g[a-2],g[a])([b[a-2],b[a]]);break;case 227:this.$=d.addLocationDataFn(g[a-1],g[a])({source:b[a]});break;case 228:this.$=d.addLocationDataFn(g[a-1],g[a])({source:b[a],object:!0});break;case 229:this.$=d.addLocationDataFn(g[a-3],g[a])({source:b[a-2],guard:b[a]});break;case 230:this.$=d.addLocationDataFn(g[a-3],g[a])({source:b[a-2],guard:b[a],object:!0});break;case 231:this.$=
+d.addLocationDataFn(g[a-3],g[a])({source:b[a-2],step:b[a]});break;case 232:this.$=d.addLocationDataFn(g[a-5],g[a])({source:b[a-4],guard:b[a-2],step:b[a]});break;case 233:this.$=d.addLocationDataFn(g[a-5],g[a])({source:b[a-4],step:b[a-2],guard:b[a]});break;case 234:this.$=d.addLocationDataFn(g[a-1],g[a])({source:b[a],from:!0});break;case 235:this.$=d.addLocationDataFn(g[a-3],g[a])({source:b[a-2],guard:b[a],from:!0});break;case 236:this.$=d.addLocationDataFn(g[a-4],g[a])(new d.Switch(b[a-3],b[a-1]));
+break;case 237:this.$=d.addLocationDataFn(g[a-6],g[a])(new d.Switch(b[a-5],b[a-3],b[a-1]));break;case 238:this.$=d.addLocationDataFn(g[a-3],g[a])(new d.Switch(null,b[a-1]));break;case 239:this.$=d.addLocationDataFn(g[a-5],g[a])(new d.Switch(null,b[a-3],b[a-1]));break;case 241:this.$=d.addLocationDataFn(g[a-1],g[a])(b[a-1].concat(b[a]));break;case 242:this.$=d.addLocationDataFn(g[a-2],g[a])([[b[a-1],b[a]]]);break;case 243:this.$=d.addLocationDataFn(g[a-3],g[a])([[b[a-2],b[a-1]]]);break;case 244:this.$=
+d.addLocationDataFn(g[a-2],g[a])(new d.If(b[a-1],b[a],{type:b[a-2]}));break;case 245:this.$=d.addLocationDataFn(g[a-4],g[a])(b[a-4].addElse(d.addLocationDataFn(g[a-2],g[a])(new d.If(b[a-1],b[a],{type:b[a-2]}))));break;case 247:this.$=d.addLocationDataFn(g[a-2],g[a])(b[a-2].addElse(b[a]));break;case 248:case 249:this.$=d.addLocationDataFn(g[a-2],g[a])(new d.If(b[a],d.addLocationDataFn(g[a-2])(d.Block.wrap([b[a-2]])),{type:b[a-1],statement:!0}));break;case 252:this.$=d.addLocationDataFn(g[a-1],g[a])(new d.Op("-",
+b[a]));break;case 253:this.$=d.addLocationDataFn(g[a-1],g[a])(new d.Op("+",b[a]));break;case 254:this.$=d.addLocationDataFn(g[a-1],g[a])(new d.Op("--",b[a]));break;case 255:this.$=d.addLocationDataFn(g[a-1],g[a])(new d.Op("++",b[a]));break;case 256:this.$=d.addLocationDataFn(g[a-1],g[a])(new d.Op("--",b[a-1],null,!0));break;case 257:this.$=d.addLocationDataFn(g[a-1],g[a])(new d.Op("++",b[a-1],null,!0));break;case 258:this.$=d.addLocationDataFn(g[a-1],g[a])(new d.Existence(b[a-1]));break;case 259:this.$=
+d.addLocationDataFn(g[a-2],g[a])(new d.Op("+",b[a-2],b[a]));break;case 260:this.$=d.addLocationDataFn(g[a-2],g[a])(new d.Op("-",b[a-2],b[a]));break;case 261:case 262:case 263:case 264:case 265:case 266:case 267:case 268:case 269:case 270:this.$=d.addLocationDataFn(g[a-2],g[a])(new d.Op(b[a-1],b[a-2],b[a]));break;case 271:g=d.addLocationDataFn(g[a-2],g[a]);b="!"===b[a-1].charAt(0)?(new d.Op(b[a-1].slice(1),b[a-2],b[a])).invert():new d.Op(b[a-1],b[a-2],b[a]);this.$=g(b);break;case 272:this.$=d.addLocationDataFn(g[a-
+2],g[a])(new d.Assign(b[a-2],b[a],b[a-1]));break;case 273:this.$=d.addLocationDataFn(g[a-4],g[a])(new d.Assign(b[a-4],b[a-1],b[a-3]));break;case 274:this.$=d.addLocationDataFn(g[a-3],g[a])(new d.Assign(b[a-3],b[a],b[a-2]));break;case 275:this.$=d.addLocationDataFn(g[a-2],g[a])(new d.Extends(b[a-2],b[a]))}},table:[{1:[2,1],3:1,4:2,5:3,7:4,8:5,9:6,10:20,11:21,12:b,13:23,14:24,15:7,16:8,17:9,18:10,19:11,20:12,21:13,22:14,23:15,24:16,25:17,26:18,27:19,28:u,33:70,34:f,37:55,38:k,39:80,40:t,41:p,43:57,
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+return"\x3c"===(a=this.operator)||"\x3e"===a||"\x3e\x3d"===a||"\x3c\x3d"===a||"\x3d\x3d\x3d"===a||"!\x3d\x3d"===a};b.prototype.invert=function(){var a,c;if(this.isChainable()&&this.first.isChainable()){var e=!0;for(a=this;a&&a.operator;)e&&(e=a.operator in d),a=a.first;if(!e)return(new P(this)).invert();for(a=this;a&&a.operator;)a.invert=!a.invert,a.operator=d[a.operator],a=a.first;return this}return(a=d[this.operator])?(this.operator=a,this.first.unwrap()instanceof b&&this.first.invert(),this):this.second?
+(new P(this)).invert():"!"===this.operator&&(e=this.first.unwrap())instanceof b&&("!"===(c=e.operator)||"in"===c||"instanceof"===c)?e:new b("!",this)};b.prototype.unfoldSoak=function(a){var b;return("++"===(b=this.operator)||"--"===b||"delete"===b)&&Ea(a,this,"first")};b.prototype.generateDo=function(a){var b,d;var c=[];var e=(a instanceof x&&(b=a.value.unwrap())instanceof k?b:a).params||[];b=0;for(d=e.length;b<d;b++){var l=e[b];l.value?(c.push(l.value),delete l.value):c.push(l)}a=new za(a,c);a["do"]=
+!0;return a};b.prototype.compileNode=function(a){var b;var d=this.isChainable()&&this.first.isChainable();d||(this.first.front=this.front);"delete"===this.operator&&a.scope.check(this.first.unwrapAll().value)&&this.error("delete operand may not be argument or var");("--"===(b=this.operator)||"++"===b)&&(b=Aa(this.first.unwrapAll().value))&&this.first.error(b);if(this.isYield())return this.compileYield(a);if(this.isUnary())return this.compileUnary(a);if(d)return this.compileChain(a);switch(this.operator){case "?":return this.compileExistence(a);
+case "**":return this.compilePower(a);case "//":return this.compileFloorDivision(a);case "%%":return this.compileModulo(a);default:return d=this.first.compileToFragments(a,Ha),b=this.second.compileToFragments(a,Ha),d=[].concat(d,this.makeCode(" "+this.operator+" "),b),a.level<=Ha?d:this.wrapInBraces(d)}};b.prototype.compileChain=function(a){var b=this.first.second.cache(a);this.first.second=b[0];b=b[1];a=this.first.compileToFragments(a,Ha).concat(this.makeCode(" "+(this.invert?"\x26\x26":"||")+" "),
+b.compileToFragments(a),this.makeCode(" "+this.operator+" "),this.second.compileToFragments(a,Ha));return this.wrapInBraces(a)};b.prototype.compileExistence=function(a){if(this.first.isComplex()){var b=new y(a.scope.freeVariable("ref"));var d=new P(new x(b,this.first))}else b=d=this.first;return(new G(new z(d),b,{type:"if"})).addElse(this.second).compileToFragments(a)};b.prototype.compileUnary=function(a){var d=[];var c=this.operator;d.push([this.makeCode(c)]);if("!"===c&&this.first instanceof z)return this.first.negated=
+!this.first.negated,this.first.compileToFragments(a);if(a.level>=Ka)return(new P(this)).compileToFragments(a);var e="+"===c||"-"===c;("new"===c||"typeof"===c||"delete"===c||e&&this.first instanceof b&&this.first.operator===c)&&d.push([this.makeCode(" ")]);if(e&&this.first instanceof b||"new"===c&&this.first.isStatement(a))this.first=new P(this.first);d.push(this.first.compileToFragments(a,Ha));this.flip&&d.reverse();return this.joinFragmentArrays(d,"")};b.prototype.compileYield=function(a){var b;
+var d=[];var c=this.operator;null==a.scope.parent&&this.error("yield can only occur inside functions");0<=R.call(Object.keys(this.first),"expression")&&!(this.first instanceof aa)?null!=this.first.expression&&d.push(this.first.expression.compileToFragments(a,Ha)):(a.level>=Da&&d.push([this.makeCode("(")]),d.push([this.makeCode(c)]),""!==(null!=(b=this.first.base)?b.value:void 0)&&d.push([this.makeCode(" ")]),d.push(this.first.compileToFragments(a,Ha)),a.level>=Da&&d.push([this.makeCode(")")]));return this.joinFragmentArrays(d,
+"")};b.prototype.compilePower=function(a){var b=new C(new y("Math"),[new ra(new L("pow"))]);return(new za(b,[this.first,this.second])).compileToFragments(a)};b.prototype.compileFloorDivision=function(a){var d=new C(new y("Math"),[new ra(new L("floor"))]);var c=this.second.isComplex()?new P(this.second):this.second;c=new b("/",this.first,c);return(new za(d,[c])).compileToFragments(a)};b.prototype.compileModulo=function(a){var b=new C(new B(La("modulo",a)));return(new za(b,[this.first,this.second])).compileToFragments(a)};
+b.prototype.toString=function(a){return b.__super__.toString.call(this,a,this.constructor.name+" "+this.operator)};return b}(ta);e.In=O=function(a){function b(a,b){this.object=a;this.array=b}v(b,a);b.prototype.children=["object","array"];b.prototype.invert=sa;b.prototype.compileNode=function(a){var b;if(this.array instanceof C&&this.array.isArray()&&this.array.base.objects.length){var c=this.array.base.objects;var e=0;for(b=c.length;e<b;e++){var l=c[e];if(l instanceof T){var f=!0;break}}if(!f)return this.compileOrTest(a)}return this.compileLoopTest(a)};
+b.prototype.compileOrTest=function(a){var b,c;var e=this.object.cache(a,Ha);var f=e[0];var l=e[1];var h=this.negated?[" !\x3d\x3d "," \x26\x26 "]:[" \x3d\x3d\x3d "," || "];e=h[0];h=h[1];var m=[];var k=this.array.base.objects;var n=b=0;for(c=k.length;b<c;n=++b){var q=k[n];n&&m.push(this.makeCode(h));m=m.concat(n?l:f,this.makeCode(e),q.compileToFragments(a,Ka))}return a.level<Ha?m:this.wrapInBraces(m)};b.prototype.compileLoopTest=function(a){var b=this.object.cache(a,va);var c=b[0];var e=b[1];b=[].concat(this.makeCode(La("indexOf",
+a)+".call("),this.array.compileToFragments(a,va),this.makeCode(", "),e,this.makeCode(") "+(this.negated?"\x3c 0":"\x3e\x3d 0")));if(ca(c)===ca(e))return b;b=c.concat(this.makeCode(", "),b);return a.level<va?b:this.wrapInBraces(b)};b.prototype.toString=function(a){return b.__super__.toString.call(this,a,this.constructor.name+(this.negated?"!":""))};return b}(ta);e.Try=function(a){function b(a,b,c,e){this.attempt=a;this.errorVariable=b;this.recovery=c;this.ensure=e}v(b,a);b.prototype.children=["attempt",
+"recovery","ensure"];b.prototype.isStatement=ha;b.prototype.jumps=function(a){var b;return this.attempt.jumps(a)||(null!=(b=this.recovery)?b.jumps(a):void 0)};b.prototype.makeReturn=function(a){this.attempt&&(this.attempt=this.attempt.makeReturn(a));this.recovery&&(this.recovery=this.recovery.makeReturn(a));return this};b.prototype.compileNode=function(a){var b,c,e;a.indent+=Fa;var f=this.attempt.compileToFragments(a,na);var l=this.recovery?(b=a.scope.freeVariable("error",{reserve:!1}),e=new y(b),
+this.errorVariable?(c=Aa(this.errorVariable.unwrapAll().value),c?this.errorVariable.error(c):void 0,this.recovery.unshift(new x(this.errorVariable,e))):void 0,[].concat(this.makeCode(" catch ("),e.compileToFragments(a),this.makeCode(") {\n"),this.recovery.compileToFragments(a,na),this.makeCode("\n"+this.tab+"}"))):this.ensure||this.recovery?[]:(b=a.scope.freeVariable("error",{reserve:!1}),[this.makeCode(" catch ("+b+") {}")]);a=this.ensure?[].concat(this.makeCode(" finally {\n"),this.ensure.compileToFragments(a,
+na),this.makeCode("\n"+this.tab+"}")):[];return[].concat(this.makeCode(this.tab+"try {\n"),f,this.makeCode("\n"+this.tab+"}"),l,a)};return b}(ta);e.Throw=aa=function(a){function b(a){this.expression=a}v(b,a);b.prototype.children=["expression"];b.prototype.isStatement=ha;b.prototype.jumps=ka;b.prototype.makeReturn=oa;b.prototype.compileNode=function(a){return[].concat(this.makeCode(this.tab+"throw "),this.expression.compileToFragments(a),this.makeCode(";"))};return b}(ta);e.Existence=z=function(a){function b(a){this.expression=
+a}v(b,a);b.prototype.children=["expression"];b.prototype.invert=sa;b.prototype.compileNode=function(a){this.expression.front=this.front;var b=this.expression.compile(a,Ha);if(this.expression.unwrap()instanceof y&&!a.scope.check(b)){var c=this.negated?["\x3d\x3d\x3d","||"]:["!\x3d\x3d","\x26\x26"];var e=c[0];c=c[1];b="typeof "+b+" "+e+' "undefined" '+c+" "+b+" "+e+" null"}else b=b+" "+(this.negated?"\x3d\x3d":"!\x3d")+" null";return[this.makeCode(a.level<=gb?b:"("+b+")")]};return b}(ta);e.Parens=P=
+function(a){function b(a){this.body=a}v(b,a);b.prototype.children=["body"];b.prototype.unwrap=function(){return this.body};b.prototype.isComplex=function(){return this.body.isComplex()};b.prototype.compileNode=function(a){var b=this.body.unwrap();if(b instanceof C&&b.isAtomic())return b.front=this.front,b.compileToFragments(a);var c=b.compileToFragments(a,Da);return a.level<Ha&&(b instanceof h||b instanceof za||b instanceof N&&b.returns)&&(a.level<gb||3>=c.length)?c:this.wrapInBraces(c)};return b}(ta);
+e.StringWithInterpolations=A=function(a){function b(){return b.__super__.constructor.apply(this,arguments)}v(b,a);b.prototype.compileNode=function(a){var d;if(!a.inTaggedTemplateCall)return b.__super__.compileNode.apply(this,arguments);var c=this.body.unwrap();var e=[];c.traverseChildren(!1,function(a){if(a instanceof D)e.push(a);else if(a instanceof P)return e.push(a),!1;return!0});c=[];c.push(this.makeCode("`"));var f=0;for(d=e.length;f<d;f++){var l=e[f];l instanceof D?(l=l.value.slice(1,-1),l=
+l.replace(/(\\*)(`|\$\{)/g,function(a,b,d){return 0===b.length%2?b+"\\"+d:a}),c.push(this.makeCode(l))):(c.push(this.makeCode("${")),c.push.apply(c,l.compileToFragments(a,Da)),c.push(this.makeCode("}")))}c.push(this.makeCode("`"));return c};return b}(P);e.For=N=function(b){function c(b,d){this.source=d.source;this.guard=d.guard;this.step=d.step;this.name=d.name;this.index=d.index;this.body=a.wrap([b]);this.own=!!d.own;this.object=!!d.object;(this.from=!!d.from)&&this.index&&this.index.error("cannot use index with for-from");
+this.own&&!this.object&&d.ownTag.error("cannot use own with for-"+(this.from?"from":"in"));this.object&&(b=[this.index,this.name],this.name=b[0],this.index=b[1]);this.index instanceof C&&!this.index.isAssignable()&&this.index.error("index cannot be a pattern matching expression");this.range=this.source instanceof C&&this.source.base instanceof U&&!this.source.properties.length&&!this.from;this.pattern=this.name instanceof C;this.range&&this.index&&this.index.error("indexes do not apply to range loops");
+this.range&&this.pattern&&this.name.error("cannot pattern match over range loops");this.returns=!1}v(c,b);c.prototype.children=["body","source","guard","step"];c.prototype.compileNode=function(b){var d,c,e,f,l,h,k;var n=a.wrap([this.body]);var m=n.expressions;m=m[m.length-1];(null!=m?m.jumps():void 0)instanceof H&&(this.returns=!1);var q=this.range?this.source.base:this.source;var p=b.scope;this.pattern||(e=this.name&&this.name.compile(b,va));m=this.index&&this.index.compile(b,va);e&&!this.pattern&&
+p.find(e);!m||this.index instanceof C||p.find(m);this.returns&&(c=p.freeVariable("results"));this.from?this.pattern&&(f=p.freeVariable("x",{single:!0})):f=this.object&&m||p.freeVariable("i",{single:!0});var w=(this.range||this.from)&&e||m||f;var r=w!==f?w+" \x3d ":"";if(this.step&&!this.range){m=this.cacheToCodeFragments(this.step.cache(b,va,Za));var t=m[0];var v=m[1];this.step.isNumber()&&(h=Number(v))}this.pattern&&(e=f);var u=m=k="";var K=this.tab+Fa;if(this.range)var A=q.compileToFragments(ja(b,
+{index:f,name:e,step:this.step,isComplex:Za}));else{var z=this.source.compile(b,va);!e&&!this.own||this.source.unwrap()instanceof y||(u+=""+this.tab+(q=p.freeVariable("ref"))+" \x3d "+z+";\n",z=q);!e||this.pattern||this.from||(l=e+" \x3d "+z+"["+w+"]");this.object||this.from||(t!==v&&(u+=""+this.tab+t+";\n"),e=0>h,this.step&&null!=h&&e||(d=p.freeVariable("len")),A=""+r+f+" \x3d 0, "+d+" \x3d "+z+".length",t=""+r+f+" \x3d "+z+".length - 1",d=f+" \x3c "+d,p=f+" \x3e\x3d 0",this.step?(null!=h?e&&(d=
+p,A=t):(d=v+" \x3e 0 ? "+d+" : "+p,A="("+v+" \x3e 0 ? ("+A+") : "+t+")"),f=f+" +\x3d "+v):f=""+(w!==f?"++"+f:f+"++"),A=[this.makeCode(A+"; "+d+"; "+r+f)])}if(this.returns){var U=""+this.tab+c+" \x3d [];\n";var D="\n"+this.tab+"return "+c+";";n.makeReturn(c)}this.guard&&(1<n.expressions.length?n.expressions.unshift(new G((new P(this.guard)).invert(),new V("continue"))):this.guard&&(n=a.wrap([new G(this.guard,n)])));this.pattern&&n.expressions.unshift(new x(this.name,this.from?new y(w):new B(z+"["+
+w+"]")));c=[].concat(this.makeCode(u),this.pluckDirectCall(b,n));l&&(k="\n"+K+l+";");this.object?(A=[this.makeCode(w+" in "+z)],this.own&&(m="\n"+K+"if (!"+La("hasProp",b)+".call("+z+", "+w+")) continue;")):this.from&&(A=[this.makeCode(w+" of "+z)]);(b=n.compileToFragments(ja(b,{indent:K}),na))&&0<b.length&&(b=[].concat(this.makeCode("\n"),b,this.makeCode("\n")));return[].concat(c,this.makeCode(""+(U||"")+this.tab+"for ("),A,this.makeCode(") {"+m+k),b,this.makeCode(this.tab+"}"+(D||"")))};c.prototype.pluckDirectCall=
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+r.base=u[0],u=u[1]);b.expressions[p]=new za(u,w.args);m=m.concat(this.makeCode(this.tab),(new x(v,t)).compileToFragments(a,na),this.makeCode(";\n"))}}}return m};return c}(Y);e.Switch=function(b){function c(a,b,c){this.subject=a;this.cases=b;this.otherwise=c}v(c,b);c.prototype.children=["subject","cases","otherwise"];c.prototype.isStatement=ha;c.prototype.jumps=function(a){var b,c;null==a&&(a={block:!0});var e=this.cases;var f=0;for(b=e.length;f<b;f++){var h=e[f];h=h[1];if(h=h.jumps(a))return h}return null!=
+(c=this.otherwise)?c.jumps(a):void 0};c.prototype.makeReturn=function(b){var d,c;var e=this.cases;var f=0;for(d=e.length;f<d;f++){var h=e[f];h[1].makeReturn(b)}b&&(this.otherwise||(this.otherwise=new a([new B("void 0")])));null!=(c=this.otherwise)&&c.makeReturn(b);return this};c.prototype.compileNode=function(a){var b,c,e,f;var h=a.indent+Fa;var l=a.indent=h+Fa;var k=[].concat(this.makeCode(this.tab+"switch ("),this.subject?this.subject.compileToFragments(a,Da):this.makeCode("false"),this.makeCode(") {\n"));
+var n=this.cases;var m=c=0;for(e=n.length;c<e;m=++c){var q=n[m];var p=q[0];q=q[1];var w=ia([p]);p=0;for(f=w.length;p<f;p++){var r=w[p];this.subject||(r=r.invert());k=k.concat(this.makeCode(h+"case "),r.compileToFragments(a,Da),this.makeCode(":\n"))}0<(b=q.compileToFragments(a,na)).length&&(k=k.concat(b,this.makeCode("\n")));if(m===this.cases.length-1&&!this.otherwise)break;m=this.lastNonComment(q.expressions);m instanceof H||m instanceof B&&m.jumps()&&"debugger"!==m.value||k.push(r.makeCode(l+"break;\n"))}this.otherwise&&
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+a.unwrap():void 0};c.prototype.elseBodyNode=function(){var a;return null!=(a=this.elseBody)?a.unwrap():void 0};c.prototype.addElse=function(a){this.isChain?this.elseBodyNode().addElse(a):(this.isChain=a instanceof c,this.elseBody=this.ensureBlock(a),this.elseBody.updateLocationDataIfMissing(a.locationData));return this};c.prototype.isStatement=function(a){var b;return(null!=a?a.level:void 0)===na||this.bodyNode().isStatement(a)||(null!=(b=this.elseBodyNode())?b.isStatement(a):void 0)};c.prototype.jumps=
+function(a){var b;return this.body.jumps(a)||(null!=(b=this.elseBody)?b.jumps(a):void 0)};c.prototype.compileNode=function(a){return this.isStatement(a)?this.compileStatement(a):this.compileExpression(a)};c.prototype.makeReturn=function(b){b&&(this.elseBody||(this.elseBody=new a([new B("void 0")])));this.body&&(this.body=new a([this.body.makeReturn(b)]));this.elseBody&&(this.elseBody=new a([this.elseBody.makeReturn(b)]));return this};c.prototype.ensureBlock=function(b){return b instanceof a?b:new a([b])};
+c.prototype.compileStatement=function(a){var b=la(a,"chainChild");if(la(a,"isExistentialEquals"))return(new c(this.condition.invert(),this.elseBodyNode(),{type:"if"})).compileToFragments(a);var e=a.indent+Fa;var f=this.condition.compileToFragments(a,Da);var h=this.ensureBlock(this.body).compileToFragments(ja(a,{indent:e}));h=[].concat(this.makeCode("if ("),f,this.makeCode(") {\n"),h,this.makeCode("\n"+this.tab+"}"));b||h.unshift(this.makeCode(this.tab));if(!this.elseBody)return h;b=h.concat(this.makeCode(" else "));
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+e);return a.level>=gb?this.wrapInBraces(e):e};c.prototype.unfoldSoak=function(){return this.soak&&this};return c}(ta);var jc={extend:function(a){return"function(child, parent) { for (var key in parent) { if ("+La("hasProp",a)+".call(parent, key)) child[key] \x3d parent[key]; } function ctor() { this.constructor \x3d child; } ctor.prototype \x3d parent.prototype; child.prototype \x3d new ctor(); child.__super__ \x3d parent.prototype; return child; }"},bind:function(){return"function(fn, me){ return function(){ return fn.apply(me, arguments); }; }"},
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+if(!t.isCoffee(f.filename)||u.extensions)b=ra(b,c),b=null!=(e=b.js)?e:b;return f._compile(b,f.filename)};e.eval=function(a,c){var e,f,h,k,n;null==c&&(c={});if(a=a.trim()){var p=null!=(h=b.Script.createContext)?h:b.createContext;h=null!=(f=b.isContext)?f:function(a){return c.sandbox instanceof p().constructor};if(p){if(null!=c.sandbox){if(h(c.sandbox))var r=c.sandbox;else for(k in r=p(),h=c.sandbox,h)x.call(h,k)&&(f=h[k],r[k]=f);r.global=r.root=r.GLOBAL=r}else r=global;r.__filename=c.filename||"eval";
+r.__dirname=za.dirname(r.__filename);if(r===global&&!r.module&&!r.require){var t=u("module");r.module=e=new t(c.modulename||"eval");r.require=f=function(a){return t._load(a,e,!0)};e.filename=r.__filename;var y=Object.getOwnPropertyNames(u);h=0;for(n=y.length;h<n;h++){var z=y[h];"paths"!==z&&"arguments"!==z&&"caller"!==z&&(f[z]=u[z])}f.paths=e.paths=t._nodeModulePaths(process.cwd());f.resolve=function(a){return t._resolveFilename(a,e)}}}h={};for(k in c)x.call(c,k)&&(f=c[k],h[k]=f);h.bare=!0;a=ra(a,
+h);return r===global?b.runInThisContext(a):b.runInContext(a,r)}};e.register=function(){return u("./register")};if(u.extensions){var N=this.FILE_EXTENSIONS;var y=function(a){var b;return null!=(b=u.extensions)[a]?b[a]:b[a]=function(){throw Error("Use CoffeeScript.register() or require the coffee-script/register module to require "+a+" files.");}};var G=0;for(r=N.length;G<r;G++)z=N[G],y(z)}e._compileFile=function(b,c,e){null==c&&(c=!1);null==e&&(e=!1);var f=a.readFileSync(b,"utf8");f=65279===f.charCodeAt(0)?
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+"\x3canonymous\x3e")+" ("+e+")"};var B=function(a){return null!=F[a]?F[a]:null!=F["\x3canonymous\x3e"]?F["\x3canonymous\x3e"]:null!=J[a]?(a=ra(J[a],{filename:a,sourceMap:!0,literate:t.isLiterate(a)}),a.sourceMap):null};Error.prepareStackTrace=function(a,b){var c;var f=function(a,b,c){var e;a=B(a);null!=a&&(e=a.sourceLocation([b-1,c-1]));return null!=e?[e[0]+1,e[1]+1]:null};var h=function(){var a;var h=[];var k=0;for(a=b.length;k<a;k++){c=b[k];if(c.getFunction()===e.run)break;h.push("    at "+Q(c,
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+window){"undefined"!==typeof btoa&&null!==btoa&&"undefined"!==typeof JSON&&null!==JSON&&(r=function(a,b){null==b&&(b={});b.inlineMap=!0;return ra.compile(a,b)});ra.load=function(a,b,e,f){null==e&&(e={});null==f&&(f=!1);e.sourceFiles=[a];var k=window.ActiveXObject?new window.ActiveXObject("Microsoft.XMLHTTP"):new window.XMLHttpRequest;k.open("GET",a,!0);"overrideMimeType"in k&&k.overrideMimeType("text/plain");k.onreadystatechange=function(){var r;if(4===k.readyState){if(0===(r=k.status)||200===r)r=
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docs/v1/test.html

@@ -90,6 +90,10 @@ arrayEgal = (a, b) ->
 @eq      = (a, b, msg) -> ok egal(a, b), msg or "Expected #{a} to equal #{b}"
 @arrayEq = (a, b, msg) -> ok arrayEgal(a,b), msg or "Expected #{a} to deep equal #{b}"
 
+@toJS = (str) ->
+  CoffeeScript.compile str, bare: yes
+  .replace /^\s+|\s+$/g, '' # Trim leading/trailing whitespace
+
 
 @doesNotThrow = (fn) ->
   fn()
@@ -3146,6 +3150,17 @@ test "#748: trailing reserved identifiers", ->
     nonce
   eq nonce, result
 
+test 'if-else within an assignment, condition parenthesized', ->
+  result = if (1 is 1) then 'correct'
+  eq result, 'correct'
+
+  result = if ('whatever' ? no) then 'correct'
+  eq result, 'correct'
+
+  f = -> 'wrong'
+  result = if (f?()) then 'correct' else 'wrong'
+  eq result, 'correct'
+
 # Postfix
 
 test "#3056: multiple postfix conditionals", ->
@@ -3882,6 +3897,13 @@ test "octal escapes", ->
     /a\\0\\tb\\\\\\07c/
       \  \   \ \ ^\^^
   '''
+  assertErrorFormat '''
+    /a\\1\\tb\\\\\\07c/
+  ''', '''
+    [stdin]:1:10: error: octal escape sequences are not allowed \\07
+    /a\\1\\tb\\\\\\07c/
+      \  \   \ \ ^\^^
+  '''
   assertErrorFormat '''
     ///a
       #{b} \\01///
@@ -4677,6 +4699,119 @@ test "can't use pattern matches for loop indices", ->
              ^^^
   '''
 
+test "#4248: Unicode code point escapes", ->
+  assertErrorFormat '''
+    "a
+      #{b} \\u{G02}
+     c"
+  ''', '''
+    [stdin]:2:8: error: invalid escape sequence \\u{G02}
+      #{b} \\u{G02}
+           ^\^^^^^^
+  '''
+  assertErrorFormat '''
+    /a\\u{}b/
+  ''', '''
+    [stdin]:1:3: error: invalid escape sequence \\u{}
+    /a\\u{}b/
+      ^\^^^
+  '''
+  assertErrorFormat '''
+    ///a \\u{01abc///
+  ''', '''
+    [stdin]:1:6: error: invalid escape sequence \\u{01abc
+    ///a \\u{01abc///
+         ^\^^^^^^^
+  '''
+
+  assertErrorFormat '''
+    /\\u{123} \\u{110000}/
+  ''', '''
+    [stdin]:1:10: error: unicode code point escapes greater than \\u{10ffff} are not allowed
+    /\\u{123} \\u{110000}/
+      \       ^\^^^^^^^^^
+  '''
+
+  assertErrorFormat '''
+    ///abc\\\\\\u{123456}///u
+  ''', '''
+    [stdin]:1:9: error: unicode code point escapes greater than \\u{10ffff} are not allowed
+    ///abc\\\\\\u{123456}///u
+           \ \^\^^^^^^^^^
+  '''
+
+  assertErrorFormat '''
+    """
+      \\u{123}
+      a
+        \\u{00110000}
+      #{ 'b' }
+    """
+  ''', '''
+    [stdin]:4:5: error: unicode code point escapes greater than \\u{10ffff} are not allowed
+        \\u{00110000}
+        ^\^^^^^^^^^^^
+  '''
+
+  assertErrorFormat '''
+    '\\u{a}\\u{1111110000}'
+  ''', '''
+    [stdin]:1:7: error: unicode code point escapes greater than \\u{10ffff} are not allowed
+    '\\u{a}\\u{1111110000}'
+      \    ^\^^^^^^^^^^^^^
+  '''
+
+test "#4283: error message for implicit call", ->
+  assertErrorFormat '''
+    console.log {search, users, contacts users_to_display}
+  ''', '''
+    [stdin]:1:29: error: unexpected implicit function call
+    console.log {search, users, contacts users_to_display}
+                                ^^^^^^^^
+  '''
+
+test "#3199: error message for call indented non-object", ->
+  assertErrorFormat '''
+    fn = ->
+    fn
+      1
+  ''', '''
+    [stdin]:3:1: error: unexpected indentation
+      1
+    ^^
+  '''
+
+test "#3199: error message for call indented comprehension", ->
+  assertErrorFormat '''
+    fn = ->
+    fn
+      x for x in [1, 2, 3]
+  ''', '''
+    [stdin]:3:1: error: unexpected indentation
+      x for x in [1, 2, 3]
+    ^^
+  '''
+
+test "#3199: error message for return indented non-object", ->
+  assertErrorFormat '''
+    return
+      1
+  ''', '''
+    [stdin]:2:3: error: unexpected number
+      1
+      ^
+  '''
+
+test "#3199: error message for return indented comprehension", ->
+  assertErrorFormat '''
+    return
+      x for x in [1, 2, 3]
+  ''', '''
+    [stdin]:2:3: error: unexpected identifier
+      x for x in [1, 2, 3]
+      ^
+  '''
+
 </script>
 <script type="text/x-coffeescript" class="test" id="eval">
 if vm = require? 'vm'
@@ -4987,6 +5122,9 @@ test "indented heredoc", ->
 #   * single line arguments
 #   * inline function literal
 #   * inline object literal
+#
+# * chaining inside
+#   * implicit object literal
 
 test "chaining after outdent", ->
   id = (x) -> x
@@ -5057,6 +5195,47 @@ test "#1495, method call chaining", ->
   ).join ', '
   eq 'a, b, c', result
 
+test "chaining should not wrap spilling ternary", ->
+  throws -> CoffeeScript.compile """
+    if 0 then 1 else g
+      a: 42
+    .h()
+  """
+
+test "chaining should wrap calls containing spilling ternary", ->
+  f = (x) -> h: x
+  id = (x) -> x
+  result = f if true then 42 else id
+      a: 2
+  .h
+  eq 42, result
+
+test "chaining should work within spilling ternary", ->
+  f = (x) -> h: x
+  id = (x) -> x
+  result = f if false then 1 else id
+      a: 3
+      .a
+  eq 3, result.h
+
+test "method call chaining inside objects", ->
+  f = (x) -> c: 42
+  result =
+    a: f 1
+    b: f a: 1
+      .c
+  eq 42, result.b
+
+test "#4568: refine sameLine implicit object tagging", ->
+  condition = yes
+  fn = -> yes
+
+  x =
+    fn bar: {
+      foo: 123
+    } if not condition
+  eq x, undefined
+
 # Nested blocks caused by paren unwrapping
 test "#1492: Nested blocks don't cause double semicolons", ->
   js = CoffeeScript.compile '(0;0)'
@@ -5114,6 +5293,13 @@ test "#1275: allow indentation before closing brackets", ->
    )
   eq 1, a
 
+test "#3199: return multiline implicit object", ->
+  y = do ->
+    if no then return
+      type: 'a'
+      msg: 'b'
+  eq undefined, y
+
 </script>
 <script type="text/x-coffeescript" class="test" id="function_invocation">
 # Function Invocation
@@ -7628,12 +7814,6 @@ test "Verify all tokens get a location", ->
 # CoffeeScript also supports optional commas within `{ … }`.
 
 
-# Helper function
-toJS = (str) ->
-  CoffeeScript.compile str, bare: yes
-  .replace /^\s+|\s+$/g, '' # Trim leading/trailing whitespace
-
-
 # Import statements
 
 test "backticked import statement", ->
@@ -7945,6 +8125,28 @@ test "export default object", ->
     };"""
   eq toJS(input), output
 
+test "export default implicit object", ->
+  input = "export default foo: 'bar', baz: 'qux'"
+  output = """
+    export default {
+      foo: 'bar',
+      baz: 'qux'
+    };"""
+  eq toJS(input), output
+
+test "export default multiline implicit object", ->
+  input = """
+    export default
+      foo: 'bar',
+      baz: 'qux'
+    """
+  output = """
+    export default {
+      foo: 'bar',
+      baz: 'qux'
+    };"""
+  eq toJS(input), output
+
 test "export default assignment expression", ->
   input = "export default foo = 'bar'"
   output = """
@@ -8310,7 +8512,7 @@ test "export an aliased member named default", ->
     };"""
   eq toJS(input), output
 
-test "export an imported member named default", ->
+test "import an imported member named default", ->
   input = "import { default } from 'lib'"
   output = """
     import {
@@ -8318,7 +8520,7 @@ test "export an imported member named default", ->
     } from 'lib';"""
   eq toJS(input), output
 
-test "export an imported aliased member named default", ->
+test "import an imported aliased member named default", ->
   input = "import { default as def } from 'lib'"
   output = """
     import {
@@ -8326,6 +8528,22 @@ test "export an imported aliased member named default", ->
     } from 'lib';"""
   eq toJS(input), output
 
+test "export an imported member named default", ->
+  input = "export { default } from 'lib'"
+  output = """
+    export {
+      default
+    } from 'lib';"""
+  eq toJS(input), output
+
+test "export an imported aliased member named default", ->
+  input = "export { default as def } from 'lib'"
+  output = """
+    export {
+      default as def
+    } from 'lib';"""
+  eq toJS(input), output
+
 test "#4394: export shouldn't prevent variable declarations", ->
   input = """
     x = 1
@@ -8342,6 +8560,121 @@ test "#4394: export shouldn't prevent variable declarations", ->
   """
   eq toJS(input), output
 
+test "#4451: `default` in an export statement is only treated as a keyword when it follows `export` or `as`", ->
+  input = "export default { default: 1 }"
+  output = """
+    export default {
+      "default": 1
+    };
+  """
+  eq toJS(input), output
+
+test "#4491: import- and export-specific lexing should stop after import/export statement", ->
+  input = """
+    import {
+      foo,
+      bar as baz
+    } from 'lib'
+
+    foo as
+    3 * as 4
+    from 'foo'
+    """
+  output = """
+    import {
+      foo,
+      bar as baz
+    } from 'lib';
+
+    foo(as);
+
+    3 * as(4);
+
+    from('foo');
+    """
+  eq toJS(input), output
+
+  input = """
+    import { foo, bar as baz } from 'lib'
+
+    foo as
+    3 * as 4
+    from 'foo'
+    """
+  output = """
+    import {
+      foo,
+      bar as baz
+    } from 'lib';
+
+    foo(as);
+
+    3 * as(4);
+
+    from('foo');
+    """
+  eq toJS(input), output
+
+  input = """
+    import * as lib from 'lib'
+
+    foo as
+    3 * as 4
+    from 'foo'
+    """
+  output = """
+    import * as lib from 'lib';
+
+    foo(as);
+
+    3 * as(4);
+
+    from('foo');
+    """
+  eq toJS(input), output
+
+  input = """
+    export {
+      foo,
+      bar
+    }
+
+    foo as
+    3 * as 4
+    from 'foo'
+    """
+  output = """
+    export {
+      foo,
+      bar
+    };
+
+    foo(as);
+
+    3 * as(4);
+
+    from('foo');
+    """
+  eq toJS(input), output
+
+  input = """
+    export * from 'lib'
+
+    foo as
+    3 * as 4
+    from 'foo'
+    """
+  output = """
+    export * from 'lib';
+
+    foo(as);
+
+    3 * as(4);
+
+    from('foo');
+    """
+  eq toJS(input), output
+
 </script>
 <script type="text/x-coffeescript" class="test" id="numbers">
 # Number Literals
@@ -9013,6 +9346,18 @@ test "#4324: Shorthand after interpolated key", ->
   eq 1, obj[1]
   eq 2, obj.a
 
+test "#1263: Braceless object return", ->
+  fn = ->
+    return
+      a: 1
+      b: 2
+      c: -> 3
+
+  obj = fn()
+  eq 1, obj.a
+  eq 2, obj.b
+  eq 3, obj.c()
+
 </script>
 <script type="text/x-coffeescript" class="test" id="operators">
 # Operators
@@ -9979,6 +10324,37 @@ test "#3795: Escape otherwise invalid characters", ->
   ok ///#{a}\0
       1///.test 'a\x001'
 
+test "#4248: Unicode code point escapes", ->
+  # Support for the `u` flag in regexes was added in Node 6.
+  return if new RegExp().unicode is undefined
+  ok /a\u{1ab}c/u.test 'a\u01abc'
+  ok ///#{ 'a' }\u{000001ab}c///u.test 'a\u{1ab}c'
+  ok ///a\u{000001ab}c///u.test 'a\u{1ab}c'
+  ok /a\u{12345}c/u.test 'a\ud808\udf45c'
+
+  # and now without u flag
+  ok /a\u{1ab}c/.test 'a\u01abc'
+  ok ///#{ 'a' }\u{000001ab}c///.test 'a\u{1ab}c'
+  ok ///a\u{000001ab}c///.test 'a\u{1ab}c'
+  ok /a\u{12345}c/.test 'a\ud808\udf45c'
+
+  # rewrite code point escapes
+  input = """
+    /\\u{bcdef}\\u{abc}/u
+    """
+  output = """
+    /\\udab3\\uddef\\u0abc/u;
+  """
+  eq toJS(input), output
+
+  input = """
+    ///#{ 'a' }\\u{bcdef}///
+    """
+  output = """
+    /a\\udab3\\uddef/;
+  """
+  eq toJS(input), output
+
 </script>
 <script type="text/x-coffeescript" class="test" id="repl">
 return if global.testingBrowser
@@ -10050,6 +10426,11 @@ testRepl "variables are saved", (input, output) ->
   eq "'foobar'", output.lastWrite()
 
 testRepl "empty command evaluates to undefined", (input, output) ->
+  # A regression fixed in Node 5.11.0 broke the handling of pressing enter in
+  # the Node REPL; see https://github.com/nodejs/node/pull/6090 and
+  # https://github.com/jashkenas/coffeescript/issues/4502.
+  # Just skip this test for versions of Node < 6.
+  return if parseInt(process.versions.node.split('.')[0], 10) < 6
   input.emitLine ''
   eq 'undefined', output.lastWrite()
 
@@ -10723,10 +11104,10 @@ test "`Future Reserved Word`s, `eval` and `arguments` restrictions", ->
     check "#{keyword} *= 1"
     check "#{keyword} /= 1"
     check "#{keyword} ?= 1"
-    check "{keyword}++"
-    check "++{keyword}"
-    check "{keyword}--"
-    check "--{keyword}"
+    check "#{keyword}++"
+    check "++#{keyword}"
+    check "#{keyword}--"
+    check "--#{keyword}"
   destruct = (keyword, check = strict) ->
     check "{#{keyword}}"
     check "o = {#{keyword}}"
@@ -11169,6 +11550,36 @@ test "#4314: Whitespace less than or equal to stripped indentation", ->
     #{1} #{2}  #{3}   #{4}    #{5}     end
     a #{0}     b"""
 
+test "#4248: Unicode code point escapes", ->
+  eq '\u01ab\u00cd', '\u{1ab}\u{cd}'
+  eq '\u01ab', '\u{000001ab}'
+  eq 'a\u01ab', "#{ 'a' }\u{1ab}"
+  eq '\u01abc', '''\u{01ab}c'''
+  eq '\u01abc', """\u{1ab}#{ 'c' }"""
+  eq '\udab3\uddef', '\u{bcdef}'
+  eq '\udab3\uddef', '\u{0000bcdef}'
+  eq 'a\udab3\uddef', "#{ 'a' }\u{bcdef}"
+  eq '\udab3\uddefc', '''\u{0bcdef}c'''
+  eq '\udab3\uddefc', """\u{bcdef}#{ 'c' }"""
+  eq '\\u{123456}', "#{'\\'}#{'u{123456}'}"
+
+  # rewrite code point escapes
+  input = """
+    '\\u{bcdef}\\u{abc}'
+    """
+  output = """
+    '\\udab3\\uddef\\u0abc';
+  """
+  eq toJS(input), output
+
+  input = """
+    "#{ 'a' }\\u{bcdef}"
+    """
+  output = """
+    "a\\udab3\\uddef";
+  """
+  eq toJS(input), output
+
 </script>
 <script type="text/x-coffeescript" class="test" id="tagged_template_literals">
 # Tagged template literals

docs/v2/annotated-source/browser.html

@@ -124,7 +124,6 @@ We add support for loading remote Coffee scripts via <strong>XHR</strong>, and
             
             <div class="content"><div class='highlight'><pre>
 CoffeeScript = <span class="hljs-built_in">require</span> <span class="hljs-string">'./coffeescript'</span>
-CoffeeScript.<span class="hljs-built_in">require</span> = <span class="hljs-built_in">require</span>
 compile = CoffeeScript.compile</pre></div></div>
             
         </li>
@@ -171,11 +170,12 @@ compile = CoffeeScript.compile</pre></div></div>
               <div class="pilwrap ">
                 <a class="pilcrow" href="#section-4">&#182;</a>
               </div>
-              <p>If we’re not in a browser environment, we’re finished with the public API.</p>
+              <p>Export this more limited <code>CoffeeScript</code> than what is exported by
+<code>index.coffee</code>, which is intended for a Node environment.</p>
 
             </div>
             
-            <div class="content"><div class='highlight'><pre><span class="hljs-keyword">return</span> <span class="hljs-keyword">unless</span> <span class="hljs-built_in">window</span>?</pre></div></div>
+            <div class="content"><div class='highlight'><pre><span class="hljs-built_in">module</span>.exports = CoffeeScript</pre></div></div>
             
         </li>
         
@@ -186,6 +186,21 @@ compile = CoffeeScript.compile</pre></div></div>
               <div class="pilwrap ">
                 <a class="pilcrow" href="#section-5">&#182;</a>
               </div>
+              <p>If we’re not in a browser environment, we’re finished with the public API.</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre><span class="hljs-keyword">return</span> <span class="hljs-keyword">unless</span> <span class="hljs-built_in">window</span>?</pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-6">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-6">&#182;</a>
+              </div>
               <p>Include source maps where possible. If we’ve got a base64 encoder, a
 JSON serializer, and tools for escaping unicode characters, we’re good to go.
 Ported from <a href="https://developer.mozilla.org/en-US/docs/DOM/window.btoa">https://developer.mozilla.org/en-US/docs/DOM/window.btoa</a></p>
@@ -200,11 +215,11 @@ Ported from <a href="https://developer.mozilla.org/en-US/docs/DOM/window.btoa">h
         </li>
         
         
-        <li id="section-6">
+        <li id="section-7">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-6">&#182;</a>
+                <a class="pilcrow" href="#section-7">&#182;</a>
               </div>
               <p>Load a remote script from the current domain via XHR.</p>
 
@@ -231,11 +246,11 @@ Ported from <a href="https://developer.mozilla.org/en-US/docs/DOM/window.btoa">h
         </li>
         
         
-        <li id="section-7">
+        <li id="section-8">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-7">&#182;</a>
+                <a class="pilcrow" href="#section-8">&#182;</a>
               </div>
               <p>Activate CoffeeScript in the browser by having it compile and evaluate
 all script tags with a content-type of <code>text/coffeescript</code>.
@@ -273,11 +288,11 @@ This happens on page load.</p>
         </li>
         
         
-        <li id="section-8">
+        <li id="section-9">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-8">&#182;</a>
+                <a class="pilcrow" href="#section-9">&#182;</a>
               </div>
               <p><code>options.filename</code> defines the filename the source map appears as
 in Developer Tools. If a script tag has an <code>id</code>, use that as the
@@ -296,11 +311,11 @@ only one CoffeeScript script block to parse.</p>
         </li>
         
         
-        <li id="section-9">
+        <li id="section-10">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-9">&#182;</a>
+                <a class="pilcrow" href="#section-10">&#182;</a>
               </div>
               <p>Listen for window load, both in decent browsers and in IE.</p>
 

docs/v2/annotated-source/cake.html

@@ -116,7 +116,7 @@
                 <a class="pilcrow" href="#section-1">&#182;</a>
               </div>
               <p><code>cake</code> is a simplified version of <a href="http://www.gnu.org/software/make/">Make</a>
-(<a href="http://rake.rubyforge.org/">Rake</a>, <a href="http://github.com/280north/jake">Jake</a>)
+(<a href="http://rake.rubyforge.org/">Rake</a>, <a href="https://github.com/280north/jake">Jake</a>)
 for CoffeeScript. You define tasks with names and descriptions in a Cakefile,
 and can call them from the command line, or invoke them from other tasks.</p>
 <p>Running <code>cake</code> with no arguments will print out a list of all the tasks in the
@@ -141,7 +141,7 @@ current directory’s Cakefile.</p>
 path         = <span class="hljs-built_in">require</span> <span class="hljs-string">'path'</span>
 helpers      = <span class="hljs-built_in">require</span> <span class="hljs-string">'./helpers'</span>
 optparse     = <span class="hljs-built_in">require</span> <span class="hljs-string">'./optparse'</span>
-CoffeeScript = <span class="hljs-built_in">require</span> <span class="hljs-string">'./coffeescript'</span></pre></div></div>
+CoffeeScript = <span class="hljs-built_in">require</span> <span class="hljs-string">'./'</span></pre></div></div>
             
         </li>
         

docs/v2/annotated-source/coffeescript.html

@@ -123,9 +123,6 @@ source CoffeeScript into JavaScript.</p>
             </div>
             
             <div class="content"><div class='highlight'><pre>
-fs            = <span class="hljs-built_in">require</span> <span class="hljs-string">'fs'</span>
-vm            = <span class="hljs-built_in">require</span> <span class="hljs-string">'vm'</span>
-path          = <span class="hljs-built_in">require</span> <span class="hljs-string">'path'</span>
 {Lexer}       = <span class="hljs-built_in">require</span> <span class="hljs-string">'./lexer'</span>
 {parser}      = <span class="hljs-built_in">require</span> <span class="hljs-string">'./parser'</span>
 helpers       = <span class="hljs-built_in">require</span> <span class="hljs-string">'./helpers'</span>
@@ -162,7 +159,7 @@ evaluated from <code>lib/coffeescript</code>.</p>
             
             <div class="content"><div class='highlight'><pre>exports.VERSION = packageJson.version
 
-exports.FILE_EXTENSIONS = [<span class="hljs-string">'.coffee'</span>, <span class="hljs-string">'.litcoffee'</span>, <span class="hljs-string">'.coffee.md'</span>]</pre></div></div>
+exports.FILE_EXTENSIONS = FILE_EXTENSIONS = [<span class="hljs-string">'.coffee'</span>, <span class="hljs-string">'.litcoffee'</span>, <span class="hljs-string">'.coffee.md'</span>]</pre></div></div>
             
         </li>
         
@@ -255,7 +252,7 @@ didn’t create a source map (faster) but something went wrong and we need
 a stack trace. Assuming that most of the time, code isn’t throwing
 exceptions, it’s probably more efficient to compile twice only when we
 need a stack trace, rather than always generating a source map even when
-it’s not likely to be used. Save in form of <code>filename</code>: <code>(source)</code></p>
+it’s not likely to be used. Save in form of <code>filename</code>: [<code>(source)</code>]</p>
 
             </div>
             
@@ -270,7 +267,7 @@ it’s not likely to be used. Save in form of <code>filename</code>: <code>(sour
               <div class="pilwrap ">
                 <a class="pilcrow" href="#section-9">&#182;</a>
               </div>
-              <p>Also save source maps if generated, in form of <code>filename</code>: <code>(source map)</code>.</p>
+              <p>Also save source maps if generated, in form of <code>(source)</code>: [<code>(source map)</code>].</p>
 
             </div>
             
@@ -296,9 +293,7 @@ doing programmatic lookups.</p>
 
             </div>
             
-            <div class="content"><div class='highlight'><pre>exports.compile = compile = withPrettyErrors (code, options) -&gt;
-  {merge, extend} = helpers
-  options = extend {}, options</pre></div></div>
+            <div class="content"><div class='highlight'><pre>exports.compile = compile = withPrettyErrors (code, options = {}) -&gt;</pre></div></div>
             
         </li>
         
@@ -309,19 +304,11 @@ doing programmatic lookups.</p>
               <div class="pilwrap ">
                 <a class="pilcrow" href="#section-11">&#182;</a>
               </div>
-              <p>Always generate a source map if no filename is passed in, since without a
-a filename we have no way to retrieve this source later in the event that
-we need to recompile it to get a source map for <code>prepareStackTrace</code>.</p>
+              <p>Clone <code>options</code>, to avoid mutating the <code>options</code> object passed in.</p>
 
             </div>
             
-            <div class="content"><div class='highlight'><pre>  generateSourceMap = options.sourceMap <span class="hljs-keyword">or</span> options.inlineMap <span class="hljs-keyword">or</span> <span class="hljs-keyword">not</span> options.filename?
-  filename = options.filename <span class="hljs-keyword">or</span> <span class="hljs-string">'&lt;anonymous&gt;'</span>
-
-  sources[filename] = code
-  map = <span class="hljs-keyword">new</span> SourceMap <span class="hljs-keyword">if</span> generateSourceMap
-
-  tokens = lexer.tokenize code, options</pre></div></div>
+            <div class="content"><div class='highlight'><pre>  options = Object.assign {}, options</pre></div></div>
             
         </li>
         
@@ -332,6 +319,32 @@ we need to recompile it to get a source map for <code>prepareStackTrace</code>.<
               <div class="pilwrap ">
                 <a class="pilcrow" href="#section-12">&#182;</a>
               </div>
+              <p>Always generate a source map if no filename is passed in, since without a
+a filename we have no way to retrieve this source later in the event that
+we need to recompile it to get a source map for <code>prepareStackTrace</code>.</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>  generateSourceMap = options.sourceMap <span class="hljs-keyword">or</span> options.inlineMap <span class="hljs-keyword">or</span> <span class="hljs-keyword">not</span> options.filename?
+  filename = options.filename <span class="hljs-keyword">or</span> <span class="hljs-string">'&lt;anonymous&gt;'</span>
+
+  checkShebangLine filename, code
+
+  sources[filename] ?= []
+  sources[filename].push code
+  map = <span class="hljs-keyword">new</span> SourceMap <span class="hljs-keyword">if</span> generateSourceMap
+
+  tokens = lexer.tokenize code, options</pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-13">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-13">&#182;</a>
+              </div>
               <p>Pass a list of referenced variables, so that generated variables won’t get
 the same name.</p>
 
@@ -344,11 +357,11 @@ the same name.</p>
         </li>
         
         
-        <li id="section-13">
+        <li id="section-14">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-13">&#182;</a>
+                <a class="pilcrow" href="#section-14">&#182;</a>
               </div>
               <p>Check for import or export; if found, force bare mode.</p>
 
@@ -372,11 +385,11 @@ the same name.</p>
         </li>
         
         
-        <li id="section-14">
+        <li id="section-15">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-14">&#182;</a>
+                <a class="pilcrow" href="#section-15">&#182;</a>
               </div>
               <p>Update the sourcemap with data from each fragment.</p>
 
@@ -387,11 +400,11 @@ the same name.</p>
         </li>
         
         
-        <li id="section-15">
+        <li id="section-16">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-15">&#182;</a>
+                <a class="pilcrow" href="#section-16">&#182;</a>
               </div>
               <p>Do not include empty, whitespace, or semicolon-only fragments.</p>
 
@@ -412,11 +425,11 @@ the same name.</p>
         </li>
         
         
-        <li id="section-16">
+        <li id="section-17">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-16">&#182;</a>
+                <a class="pilcrow" href="#section-17">&#182;</a>
               </div>
               <p>Copy the code from each fragment into the final JavaScript.</p>
 
@@ -429,8 +442,67 @@ the same name.</p>
     js = <span class="hljs-string">"// <span class="hljs-subst">#{header}</span>\n<span class="hljs-subst">#{js}</span>"</span>
 
   <span class="hljs-keyword">if</span> generateSourceMap
-    v3SourceMap = map.generate(options, code)
-    sourceMaps[filename] = map
+    v3SourceMap = map.generate options, code
+    sourceMaps[filename] ?= []
+    sourceMaps[filename].push map
+
+  <span class="hljs-keyword">if</span> options.transpile
+    <span class="hljs-keyword">if</span> <span class="hljs-keyword">typeof</span> options.transpile <span class="hljs-keyword">isnt</span> <span class="hljs-string">'object'</span></pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-18">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-18">&#182;</a>
+              </div>
+              <p>This only happens if run via the Node API and <code>transpile</code> is set to
+something other than an object.</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>      <span class="hljs-keyword">throw</span> <span class="hljs-keyword">new</span> Error <span class="hljs-string">'The transpile option must be given an object with options to pass to Babel'</span></pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-19">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-19">&#182;</a>
+              </div>
+              <p>Get the reference to Babel that we have been passed if this compiler
+is run via the CLI or Node API.</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>    transpiler = options.transpile.transpile
+    <span class="hljs-keyword">delete</span> options.transpile.transpile</pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-20">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-20">&#182;</a>
+              </div>
+              <p>See <a href="https://github.com/babel/babel/issues/827#issuecomment-77573107">https://github.com/babel/babel/issues/827#issuecomment-77573107</a>:
+Babel can take a v3 source map object as input in <code>inputSourceMap</code>
+and it will return an <em>updated</em> v3 source map object in its output.</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>    <span class="hljs-keyword">if</span> v3SourceMap <span class="hljs-keyword">and</span> <span class="hljs-keyword">not</span> options.transpile.inputSourceMap?
+      options.transpile.inputSourceMap = v3SourceMap
+    transpilerOutput = transpiler js, options.transpile
+    js = transpilerOutput.code
+    <span class="hljs-keyword">if</span> v3SourceMap <span class="hljs-keyword">and</span> transpilerOutput.map
+      v3SourceMap = transpilerOutput.map
 
   <span class="hljs-keyword">if</span> options.inlineMap
     encoded = base64encode JSON.stringify v3SourceMap
@@ -450,11 +522,11 @@ the same name.</p>
         </li>
         
         
-        <li id="section-17">
+        <li id="section-21">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-17">&#182;</a>
+                <a class="pilcrow" href="#section-21">&#182;</a>
               </div>
               <p>Tokenize a string of CoffeeScript code, and return the array of tokens.</p>
 
@@ -466,11 +538,11 @@ the same name.</p>
         </li>
         
         
-        <li id="section-18">
+        <li id="section-22">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-18">&#182;</a>
+                <a class="pilcrow" href="#section-22">&#182;</a>
               </div>
               <p>Parse a string of CoffeeScript code or an array of lexed tokens, and
 return the AST. You can then compile it by calling <code>.compile()</code> on the root,
@@ -487,88 +559,22 @@ or traverse it by using <code>.traverseChildren()</code> with a callback.</p>
         </li>
         
         
-        <li id="section-19">
-            <div class="annotation">
-              
-              <div class="pilwrap ">
-                <a class="pilcrow" href="#section-19">&#182;</a>
-              </div>
-              <p>Compile and execute a string of CoffeeScript (on the server), correctly
-setting <code>__filename</code>, <code>__dirname</code>, and relative <code>require()</code>.</p>
-
-            </div>
-            
-            <div class="content"><div class='highlight'><pre>exports.run = <span class="hljs-function"><span class="hljs-params">(code, options = {})</span> -&gt;</span>
-  mainModule = <span class="hljs-built_in">require</span>.main</pre></div></div>
-            
-        </li>
-        
-        
-        <li id="section-20">
-            <div class="annotation">
-              
-              <div class="pilwrap ">
-                <a class="pilcrow" href="#section-20">&#182;</a>
-              </div>
-              <p>Set the filename.</p>
-
-            </div>
-            
-            <div class="content"><div class='highlight'><pre>  mainModule.filename = process.argv[<span class="hljs-number">1</span>] =
-    <span class="hljs-keyword">if</span> options.filename <span class="hljs-keyword">then</span> fs.realpathSync(options.filename) <span class="hljs-keyword">else</span> <span class="hljs-string">'&lt;anonymous&gt;'</span></pre></div></div>
-            
-        </li>
-        
-        
-        <li id="section-21">
-            <div class="annotation">
-              
-              <div class="pilwrap ">
-                <a class="pilcrow" href="#section-21">&#182;</a>
-              </div>
-              <p>Clear the module cache.</p>
-
-            </div>
-            
-            <div class="content"><div class='highlight'><pre>  mainModule.moduleCache <span class="hljs-keyword">and</span>= {}</pre></div></div>
-            
-        </li>
-        
-        
-        <li id="section-22">
-            <div class="annotation">
-              
-              <div class="pilwrap ">
-                <a class="pilcrow" href="#section-22">&#182;</a>
-              </div>
-              <p>Assign paths for node_modules loading</p>
-
-            </div>
-            
-            <div class="content"><div class='highlight'><pre>  dir = <span class="hljs-keyword">if</span> options.filename?
-    path.dirname fs.realpathSync options.filename
-  <span class="hljs-keyword">else</span>
-    fs.realpathSync <span class="hljs-string">'.'</span>
-  mainModule.paths = <span class="hljs-built_in">require</span>(<span class="hljs-string">'module'</span>)._nodeModulePaths dir</pre></div></div>
-            
-        </li>
-        
-        
         <li id="section-23">
             <div class="annotation">
               
               <div class="pilwrap ">
                 <a class="pilcrow" href="#section-23">&#182;</a>
               </div>
-              <p>Compile.</p>
+              <p>This file used to export these methods; leave stubs that throw warnings
+instead. These methods have been moved into <code>index.coffee</code> to provide
+separate entrypoints for Node and non-Node environments, so that static
+analysis tools don’t choke on Node packages when compiling for a non-Node
+environment.</p>
 
             </div>
             
-            <div class="content"><div class='highlight'><pre>  <span class="hljs-keyword">if</span> <span class="hljs-keyword">not</span> helpers.isCoffee(mainModule.filename) <span class="hljs-keyword">or</span> <span class="hljs-built_in">require</span>.extensions
-    answer = compile code, options
-    code = answer.js ? answer
-
-  mainModule._compile code, mainModule.filename</pre></div></div>
+            <div class="content"><div class='highlight'><pre>exports.run = exports.eval = exports.register = <span class="hljs-function">-&gt;</span>
+  <span class="hljs-keyword">throw</span> <span class="hljs-keyword">new</span> Error <span class="hljs-string">'require index.coffee, not this file'</span></pre></div></div>
             
         </li>
         
@@ -579,152 +585,6 @@ setting <code>__filename</code>, <code>__dirname</code>, and relative <code>requ
               <div class="pilwrap ">
                 <a class="pilcrow" href="#section-24">&#182;</a>
               </div>
-              <p>Compile and evaluate a string of CoffeeScript (in a Node.js-like environment).
-The CoffeeScript REPL uses this to run the input.</p>
-
-            </div>
-            
-            <div class="content"><div class='highlight'><pre>exports.eval = <span class="hljs-function"><span class="hljs-params">(code, options = {})</span> -&gt;</span>
-  <span class="hljs-keyword">return</span> <span class="hljs-keyword">unless</span> code = code.trim()
-  createContext = vm.Script.createContext ? vm.createContext
-
-  isContext = vm.isContext ? (ctx) -&gt;
-    options.sandbox <span class="hljs-keyword">instanceof</span> createContext().constructor
-
-  <span class="hljs-keyword">if</span> createContext
-    <span class="hljs-keyword">if</span> options.sandbox?
-      <span class="hljs-keyword">if</span> isContext options.sandbox
-        sandbox = options.sandbox
-      <span class="hljs-keyword">else</span>
-        sandbox = createContext()
-        sandbox[k] = v <span class="hljs-keyword">for</span> own k, v <span class="hljs-keyword">of</span> options.sandbox
-      sandbox.<span class="hljs-built_in">global</span> = sandbox.root = sandbox.GLOBAL = sandbox
-    <span class="hljs-keyword">else</span>
-      sandbox = <span class="hljs-built_in">global</span>
-    sandbox.__filename = options.filename || <span class="hljs-string">'eval'</span>
-    sandbox.__dirname  = path.dirname sandbox.__filename</pre></div></div>
-            
-        </li>
-        
-        
-        <li id="section-25">
-            <div class="annotation">
-              
-              <div class="pilwrap ">
-                <a class="pilcrow" href="#section-25">&#182;</a>
-              </div>
-              <p>define module/require only if they chose not to specify their own</p>
-
-            </div>
-            
-            <div class="content"><div class='highlight'><pre>    <span class="hljs-keyword">unless</span> sandbox <span class="hljs-keyword">isnt</span> <span class="hljs-built_in">global</span> <span class="hljs-keyword">or</span> sandbox.<span class="hljs-built_in">module</span> <span class="hljs-keyword">or</span> sandbox.<span class="hljs-built_in">require</span>
-      Module = <span class="hljs-built_in">require</span> <span class="hljs-string">'module'</span>
-      sandbox.<span class="hljs-built_in">module</span>  = _module  = <span class="hljs-keyword">new</span> Module(options.modulename || <span class="hljs-string">'eval'</span>)
-      sandbox.<span class="hljs-built_in">require</span> = _require = <span class="hljs-function"><span class="hljs-params">(path)</span> -&gt;</span>  Module._load path, _module, <span class="hljs-literal">true</span>
-      _module.filename = sandbox.__filename
-      <span class="hljs-keyword">for</span> r <span class="hljs-keyword">in</span> Object.getOwnPropertyNames <span class="hljs-built_in">require</span> <span class="hljs-keyword">when</span> r <span class="hljs-keyword">not</span> <span class="hljs-keyword">in</span> [<span class="hljs-string">'paths'</span>, <span class="hljs-string">'arguments'</span>, <span class="hljs-string">'caller'</span>]
-        _require[r] = <span class="hljs-built_in">require</span>[r]</pre></div></div>
-            
-        </li>
-        
-        
-        <li id="section-26">
-            <div class="annotation">
-              
-              <div class="pilwrap ">
-                <a class="pilcrow" href="#section-26">&#182;</a>
-              </div>
-              <p>use the same hack node currently uses for their own REPL</p>
-
-            </div>
-            
-            <div class="content"><div class='highlight'><pre>      _require.paths = _module.paths = Module._nodeModulePaths process.cwd()
-      _require.resolve = <span class="hljs-function"><span class="hljs-params">(request)</span> -&gt;</span> Module._resolveFilename request, _module
-  o = {}
-  o[k] = v <span class="hljs-keyword">for</span> own k, v <span class="hljs-keyword">of</span> options
-  o.bare = <span class="hljs-literal">on</span> <span class="hljs-comment"># ensure return value</span>
-  js = compile code, o
-  <span class="hljs-keyword">if</span> sandbox <span class="hljs-keyword">is</span> <span class="hljs-built_in">global</span>
-    vm.runInThisContext js
-  <span class="hljs-keyword">else</span>
-    vm.runInContext js, sandbox
-
-exports.register = <span class="hljs-function">-&gt;</span> <span class="hljs-built_in">require</span> <span class="hljs-string">'./register'</span></pre></div></div>
-            
-        </li>
-        
-        
-        <li id="section-27">
-            <div class="annotation">
-              
-              <div class="pilwrap ">
-                <a class="pilcrow" href="#section-27">&#182;</a>
-              </div>
-              <p>Throw error with deprecation warning when depending upon implicit <code>require.extensions</code> registration</p>
-
-            </div>
-            
-            <div class="content"><div class='highlight'><pre><span class="hljs-keyword">if</span> <span class="hljs-built_in">require</span>.extensions
-  <span class="hljs-keyword">for</span> ext <span class="hljs-keyword">in</span> @FILE_EXTENSIONS <span class="hljs-keyword">then</span> <span class="hljs-keyword">do</span> (ext) -&gt;
-    <span class="hljs-built_in">require</span>.extensions[ext] ?= <span class="hljs-function">-&gt;</span>
-      <span class="hljs-keyword">throw</span> <span class="hljs-keyword">new</span> Error <span class="hljs-string">"""
-      Use CoffeeScript.register() or require the coffeescript/register module to require <span class="hljs-subst">#{ext}</span> files.
-      """</span>
-
-exports._compileFile = <span class="hljs-function"><span class="hljs-params">(filename, sourceMap = <span class="hljs-literal">no</span>, inlineMap = <span class="hljs-literal">no</span>)</span> -&gt;</span>
-  raw = fs.readFileSync filename, <span class="hljs-string">'utf8'</span></pre></div></div>
-            
-        </li>
-        
-        
-        <li id="section-28">
-            <div class="annotation">
-              
-              <div class="pilwrap ">
-                <a class="pilcrow" href="#section-28">&#182;</a>
-              </div>
-              <p>Strip the Unicode byte order mark, if this file begins with one.</p>
-
-            </div>
-            
-            <div class="content"><div class='highlight'><pre>  stripped = <span class="hljs-keyword">if</span> raw.charCodeAt(<span class="hljs-number">0</span>) <span class="hljs-keyword">is</span> <span class="hljs-number">0xFEFF</span> <span class="hljs-keyword">then</span> raw.substring <span class="hljs-number">1</span> <span class="hljs-keyword">else</span> raw
-
-  <span class="hljs-keyword">try</span>
-    answer = compile stripped, {
-      filename, sourceMap, inlineMap
-      sourceFiles: [filename]
-      literate: helpers.isLiterate filename
-    }
-  <span class="hljs-keyword">catch</span> err</pre></div></div>
-            
-        </li>
-        
-        
-        <li id="section-29">
-            <div class="annotation">
-              
-              <div class="pilwrap ">
-                <a class="pilcrow" href="#section-29">&#182;</a>
-              </div>
-              <p>As the filename and code of a dynamically loaded file will be different
-from the original file compiled with CoffeeScript.run, add that
-information to error so it can be pretty-printed later.</p>
-
-            </div>
-            
-            <div class="content"><div class='highlight'><pre>    <span class="hljs-keyword">throw</span> helpers.updateSyntaxError err, stripped, filename
-
-  answer</pre></div></div>
-            
-        </li>
-        
-        
-        <li id="section-30">
-            <div class="annotation">
-              
-              <div class="pilwrap ">
-                <a class="pilcrow" href="#section-30">&#182;</a>
-              </div>
               <p>Instantiate a Lexer for our use here.</p>
 
             </div>
@@ -734,11 +594,11 @@ information to error so it can be pretty-printed later.</p>
         </li>
         
         
-        <li id="section-31">
+        <li id="section-25">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-31">&#182;</a>
+                <a class="pilcrow" href="#section-25">&#182;</a>
               </div>
               <p>The real Lexer produces a generic stream of tokens. This object provides a
 thin wrapper around it, compatible with the Jison API. We can then pass it
@@ -755,22 +615,20 @@ directly as a “Jison lexer”.</p>
       @yylineno = @yylloc.first_line
     <span class="hljs-keyword">else</span>
       tag = <span class="hljs-string">''</span>
-
     tag
   setInput: <span class="hljs-function"><span class="hljs-params">(tokens)</span> -&gt;</span>
     parser.tokens = tokens
     @pos = <span class="hljs-number">0</span>
-  upcomingInput: <span class="hljs-function">-&gt;</span>
-    <span class="hljs-string">""</span></pre></div></div>
+  upcomingInput: <span class="hljs-function">-&gt;</span> <span class="hljs-string">''</span></pre></div></div>
             
         </li>
         
         
-        <li id="section-32">
+        <li id="section-26">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-32">&#182;</a>
+                <a class="pilcrow" href="#section-26">&#182;</a>
               </div>
               <p>Make all the AST nodes visible to the parser.</p>
 
@@ -781,11 +639,11 @@ directly as a “Jison lexer”.</p>
         </li>
         
         
-        <li id="section-33">
+        <li id="section-27">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-33">&#182;</a>
+                <a class="pilcrow" href="#section-27">&#182;</a>
               </div>
               <p>Override Jison’s default error handling function.</p>
 
@@ -796,11 +654,11 @@ directly as a “Jison lexer”.</p>
         </li>
         
         
-        <li id="section-34">
+        <li id="section-28">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-34">&#182;</a>
+                <a class="pilcrow" href="#section-28">&#182;</a>
               </div>
               <p>Disregard Jison’s message, it contains redundant line number information.
 Disregard the token, we take its value directly from the lexer in case
@@ -824,11 +682,11 @@ the error is caused by a generated token which might refer to its origin.</p>
         </li>
         
         
-        <li id="section-35">
+        <li id="section-29">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-35">&#182;</a>
+                <a class="pilcrow" href="#section-29">&#182;</a>
               </div>
               <p>The second argument has a <code>loc</code> property, which should have the location
 data for this token. Unfortunately, Jison seems to send an outdated <code>loc</code>
@@ -842,11 +700,11 @@ from the lexer.</p>
         </li>
         
         
-        <li id="section-36">
+        <li id="section-30">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-36">&#182;</a>
+                <a class="pilcrow" href="#section-30">&#182;</a>
               </div>
               <p>Based on <a href="http://v8.googlecode.com/svn/branches/bleeding_edge/src/messages.js">http://v8.googlecode.com/svn/branches/bleeding_edge/src/messages.js</a>
 Modified to handle sourceMap</p>
@@ -874,11 +732,11 @@ Modified to handle sourceMap</p>
         </li>
         
         
-        <li id="section-37">
+        <li id="section-31">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-37">&#182;</a>
+                <a class="pilcrow" href="#section-31">&#182;</a>
               </div>
               <p>Check for a sourceMap position</p>
 
@@ -916,29 +774,87 @@ Modified to handle sourceMap</p>
   <span class="hljs-keyword">else</span>
     fileLocation
 <span class="hljs-function">
-<span class="hljs-title">getSourceMap</span> = <span class="hljs-params">(filename)</span> -&gt;</span>
-  <span class="hljs-keyword">if</span> sourceMaps[filename]?
-    sourceMaps[filename]</pre></div></div>
+<span class="hljs-title">getSourceMap</span> = <span class="hljs-params">(filename, line, column)</span> -&gt;</span></pre></div></div>
             
         </li>
         
         
-        <li id="section-38">
+        <li id="section-32">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-38">&#182;</a>
+                <a class="pilcrow" href="#section-32">&#182;</a>
               </div>
-              <p>CoffeeScript compiled in a browser may get compiled with <code>options.filename</code>
-of <code>&lt;anonymous&gt;</code>, but the browser may request the stack trace with the
-filename of the script file.</p>
+              <p>Skip files that we didn’t compile, like Node system files that appear in
+the stack trace, as they never have source maps.</p>
 
             </div>
             
-            <div class="content"><div class='highlight'><pre>  <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span> sourceMaps[<span class="hljs-string">'&lt;anonymous&gt;'</span>]?
-    sourceMaps[<span class="hljs-string">'&lt;anonymous&gt;'</span>]
-  <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span> sources[filename]?
-    answer = compile sources[filename],
+            <div class="content"><div class='highlight'><pre>  <span class="hljs-keyword">return</span> <span class="hljs-literal">null</span> <span class="hljs-keyword">unless</span> filename <span class="hljs-keyword">is</span> <span class="hljs-string">'&lt;anonymous&gt;'</span> <span class="hljs-keyword">or</span> filename.slice(filename.lastIndexOf(<span class="hljs-string">'.'</span>)) <span class="hljs-keyword">in</span> FILE_EXTENSIONS
+
+  <span class="hljs-keyword">if</span> filename <span class="hljs-keyword">isnt</span> <span class="hljs-string">'&lt;anonymous&gt;'</span> <span class="hljs-keyword">and</span> sourceMaps[filename]?
+    <span class="hljs-keyword">return</span> sourceMaps[filename][sourceMaps[filename].length - <span class="hljs-number">1</span>]</pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-33">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-33">&#182;</a>
+              </div>
+              <p>CoffeeScript compiled in a browser or via <code>CoffeeScript.compile</code> or <code>.run</code>
+may get compiled with <code>options.filename</code> that’s missing, which becomes
+<code>&lt;anonymous&gt;</code>; but the runtime might request the stack trace with the
+filename of the script file. See if we have a source map cached under
+<code>&lt;anonymous&gt;</code> that matches the error.</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>  <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span> sourceMaps[<span class="hljs-string">'&lt;anonymous&gt;'</span>]?</pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-34">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-34">&#182;</a>
+              </div>
+              <p>Work backwards from the most recent anonymous source maps, until we find
+one that works. This isn’t foolproof; there is a chance that multiple
+source maps will have line/column pairs that match. But we have no other
+way to match them. <code>frame.getFunction().toString()</code> doesn’t always work,
+and it’s not foolproof either.</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>    <span class="hljs-keyword">for</span> map <span class="hljs-keyword">in</span> sourceMaps[<span class="hljs-string">'&lt;anonymous&gt;'</span>] <span class="hljs-keyword">by</span> <span class="hljs-number">-1</span>
+      sourceLocation = map.sourceLocation [line - <span class="hljs-number">1</span>, column - <span class="hljs-number">1</span>]
+      <span class="hljs-keyword">return</span> map <span class="hljs-keyword">if</span> sourceLocation?[<span class="hljs-number">0</span>]? <span class="hljs-keyword">and</span> sourceLocation[<span class="hljs-number">1</span>]?</pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-35">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-35">&#182;</a>
+              </div>
+              <p>If all else fails, recompile this source to get a source map. We need the
+previous section (for <code>&lt;anonymous&gt;</code>) despite this option, because after it
+gets compiled we will still need to look it up from
+<code>sourceMaps[&#39;&lt;anonymous&gt;&#39;]</code> in order to find and return it. That’s why we
+start searching from the end in the previous block, because most of the
+time the source map we want is the last one.</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>  <span class="hljs-keyword">if</span> sources[filename]?
+    answer = compile sources[filename][sources[filename].length - <span class="hljs-number">1</span>],
       filename: filename
       sourceMap: <span class="hljs-literal">yes</span>
       literate: helpers.isLiterate filename
@@ -949,11 +865,11 @@ filename of the script file.</p>
         </li>
         
         
-        <li id="section-39">
+        <li id="section-36">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-39">&#182;</a>
+                <a class="pilcrow" href="#section-36">&#182;</a>
               </div>
               <p>Based on <a href="http://goo.gl/ZTx1p">michaelficarra/CoffeeScriptRedux</a>
 NodeJS / V8 have no support for transforming positions in stack traces using
@@ -964,7 +880,7 @@ positions.</p>
             
             <div class="content"><div class='highlight'><pre>Error.prepareStackTrace = <span class="hljs-function"><span class="hljs-params">(err, stack)</span> -&gt;</span>
 <span class="hljs-function">  <span class="hljs-title">getSourceMapping</span> = <span class="hljs-params">(filename, line, column)</span> -&gt;</span>
-    sourceMap = getSourceMap filename
+    sourceMap = getSourceMap filename, line, column
     answer = sourceMap.sourceLocation [line - <span class="hljs-number">1</span>, column - <span class="hljs-number">1</span>] <span class="hljs-keyword">if</span> sourceMap?
     <span class="hljs-keyword">if</span> answer? <span class="hljs-keyword">then</span> [answer[<span class="hljs-number">0</span>] + <span class="hljs-number">1</span>, answer[<span class="hljs-number">1</span>] + <span class="hljs-number">1</span>] <span class="hljs-keyword">else</span> <span class="hljs-literal">null</span>
 
@@ -972,7 +888,20 @@ positions.</p>
     <span class="hljs-keyword">break</span> <span class="hljs-keyword">if</span> frame.getFunction() <span class="hljs-keyword">is</span> exports.run
     <span class="hljs-string">"    at <span class="hljs-subst">#{formatSourcePosition frame, getSourceMapping}</span>"</span>
 
-  <span class="hljs-string">"<span class="hljs-subst">#{err.toString()}</span>\n<span class="hljs-subst">#{frames.join <span class="hljs-string">'\n'</span>}</span>\n"</span></pre></div></div>
+  <span class="hljs-string">"<span class="hljs-subst">#{err.toString()}</span>\n<span class="hljs-subst">#{frames.join <span class="hljs-string">'\n'</span>}</span>\n"</span>
+<span class="hljs-function">
+<span class="hljs-title">checkShebangLine</span> = <span class="hljs-params">(file, input)</span> -&gt;</span>
+  firstLine = input.split(<span class="hljs-regexp">/$/m</span>)[<span class="hljs-number">0</span>]
+  rest = firstLine?.match(<span class="hljs-regexp">/^#!\s*([^\s]+\s*)(.*)/</span>)
+  args = rest?[<span class="hljs-number">2</span>]?.split(<span class="hljs-regexp">/\s/</span>).filter (s) -&gt; s <span class="hljs-keyword">isnt</span> <span class="hljs-string">''</span>
+  <span class="hljs-keyword">if</span> args?.length &gt; <span class="hljs-number">1</span>
+    <span class="hljs-built_in">console</span>.error <span class="hljs-string">'''
+      The script to be run begins with a shebang line with more than one
+      argument. This script will fail on platforms such as Linux which only
+      allow a single argument.
+    '''</span>
+    <span class="hljs-built_in">console</span>.error <span class="hljs-string">"The shebang line was: '<span class="hljs-subst">#{firstLine}</span>' in file '<span class="hljs-subst">#{file}</span>'"</span>
+    <span class="hljs-built_in">console</span>.error <span class="hljs-string">"The arguments were: <span class="hljs-subst">#{JSON.stringify args}</span>"</span></pre></div></div>
             
         </li>
         

docs/v2/annotated-source/command.html

@@ -140,7 +140,7 @@ interactive REPL.</p>
 path           = <span class="hljs-built_in">require</span> <span class="hljs-string">'path'</span>
 helpers        = <span class="hljs-built_in">require</span> <span class="hljs-string">'./helpers'</span>
 optparse       = <span class="hljs-built_in">require</span> <span class="hljs-string">'./optparse'</span>
-CoffeeScript   = <span class="hljs-built_in">require</span> <span class="hljs-string">'./coffeescript'</span>
+CoffeeScript   = <span class="hljs-built_in">require</span> <span class="hljs-string">'./'</span>
 {spawn, exec}  = <span class="hljs-built_in">require</span> <span class="hljs-string">'child_process'</span>
 {EventEmitter} = <span class="hljs-built_in">require</span> <span class="hljs-string">'events'</span>
 
@@ -180,7 +180,7 @@ useWinPathSep  = path.sep <span class="hljs-keyword">is</span> <span class="hljs
             </div>
             
             <div class="content"><div class='highlight'><pre>BANNER = <span class="hljs-string">'''
-  Usage: coffee [options] path/to/script.coffee -- [args]
+  Usage: coffee [options] path/to/script.coffee [args]
 
   If called without options, `coffee` will run your script.
 '''</span></pre></div></div>
@@ -199,25 +199,26 @@ useWinPathSep  = path.sep <span class="hljs-keyword">is</span> <span class="hljs
             </div>
             
             <div class="content"><div class='highlight'><pre>SWITCHES = [
-  [<span class="hljs-string">'-b'</span>, <span class="hljs-string">'--bare'</span>,            <span class="hljs-string">'compile without a top-level function wrapper'</span>]
-  [<span class="hljs-string">'-c'</span>, <span class="hljs-string">'--compile'</span>,         <span class="hljs-string">'compile to JavaScript and save as .js files'</span>]
-  [<span class="hljs-string">'-e'</span>, <span class="hljs-string">'--eval'</span>,            <span class="hljs-string">'pass a string from the command line as input'</span>]
-  [<span class="hljs-string">'-h'</span>, <span class="hljs-string">'--help'</span>,            <span class="hljs-string">'display this help message'</span>]
-  [<span class="hljs-string">'-i'</span>, <span class="hljs-string">'--interactive'</span>,     <span class="hljs-string">'run an interactive CoffeeScript REPL'</span>]
-  [<span class="hljs-string">'-j'</span>, <span class="hljs-string">'--join [FILE]'</span>,     <span class="hljs-string">'concatenate the source CoffeeScript before compiling'</span>]
-  [<span class="hljs-string">'-m'</span>, <span class="hljs-string">'--map'</span>,             <span class="hljs-string">'generate source map and save as .js.map files'</span>]
-  [<span class="hljs-string">'-M'</span>, <span class="hljs-string">'--inline-map'</span>,      <span class="hljs-string">'generate source map and include it directly in output'</span>]
-  [<span class="hljs-string">'-n'</span>, <span class="hljs-string">'--nodes'</span>,           <span class="hljs-string">'print out the parse tree that the parser produces'</span>]
-  [      <span class="hljs-string">'--nodejs [ARGS]'</span>,   <span class="hljs-string">'pass options directly to the "node" binary'</span>]
-  [      <span class="hljs-string">'--no-header'</span>,       <span class="hljs-string">'suppress the "Generated by" header'</span>]
-  [<span class="hljs-string">'-o'</span>, <span class="hljs-string">'--output [DIR]'</span>,    <span class="hljs-string">'set the output directory for compiled JavaScript'</span>]
-  [<span class="hljs-string">'-p'</span>, <span class="hljs-string">'--print'</span>,           <span class="hljs-string">'print out the compiled JavaScript'</span>]
+  [<span class="hljs-string">'-b'</span>, <span class="hljs-string">'--bare'</span>,              <span class="hljs-string">'compile without a top-level function wrapper'</span>]
+  [<span class="hljs-string">'-c'</span>, <span class="hljs-string">'--compile'</span>,           <span class="hljs-string">'compile to JavaScript and save as .js files'</span>]
+  [<span class="hljs-string">'-e'</span>, <span class="hljs-string">'--eval'</span>,              <span class="hljs-string">'pass a string from the command line as input'</span>]
+  [<span class="hljs-string">'-h'</span>, <span class="hljs-string">'--help'</span>,              <span class="hljs-string">'display this help message'</span>]
+  [<span class="hljs-string">'-i'</span>, <span class="hljs-string">'--interactive'</span>,       <span class="hljs-string">'run an interactive CoffeeScript REPL'</span>]
+  [<span class="hljs-string">'-j'</span>, <span class="hljs-string">'--join [FILE]'</span>,       <span class="hljs-string">'concatenate the source CoffeeScript before compiling'</span>]
+  [<span class="hljs-string">'-m'</span>, <span class="hljs-string">'--map'</span>,               <span class="hljs-string">'generate source map and save as .js.map files'</span>]
+  [<span class="hljs-string">'-M'</span>, <span class="hljs-string">'--inline-map'</span>,        <span class="hljs-string">'generate source map and include it directly in output'</span>]
+  [<span class="hljs-string">'-n'</span>, <span class="hljs-string">'--nodes'</span>,             <span class="hljs-string">'print out the parse tree that the parser produces'</span>]
+  [      <span class="hljs-string">'--nodejs [ARGS]'</span>,     <span class="hljs-string">'pass options directly to the "node" binary'</span>]
+  [      <span class="hljs-string">'--no-header'</span>,         <span class="hljs-string">'suppress the "Generated by" header'</span>]
+  [<span class="hljs-string">'-o'</span>, <span class="hljs-string">'--output [PATH]'</span>,     <span class="hljs-string">'set the output path or path/filename for compiled JavaScript'</span>]
+  [<span class="hljs-string">'-p'</span>, <span class="hljs-string">'--print'</span>,             <span class="hljs-string">'print out the compiled JavaScript'</span>]
   [<span class="hljs-string">'-r'</span>, <span class="hljs-string">'--require [MODULE*]'</span>, <span class="hljs-string">'require the given module before eval or REPL'</span>]
-  [<span class="hljs-string">'-s'</span>, <span class="hljs-string">'--stdio'</span>,           <span class="hljs-string">'listen for and compile scripts over stdio'</span>]
-  [<span class="hljs-string">'-l'</span>, <span class="hljs-string">'--literate'</span>,        <span class="hljs-string">'treat stdio as literate style coffeescript'</span>]
-  [<span class="hljs-string">'-t'</span>, <span class="hljs-string">'--tokens'</span>,          <span class="hljs-string">'print out the tokens that the lexer/rewriter produce'</span>]
-  [<span class="hljs-string">'-v'</span>, <span class="hljs-string">'--version'</span>,         <span class="hljs-string">'display the version number'</span>]
-  [<span class="hljs-string">'-w'</span>, <span class="hljs-string">'--watch'</span>,           <span class="hljs-string">'watch scripts for changes and rerun commands'</span>]
+  [<span class="hljs-string">'-s'</span>, <span class="hljs-string">'--stdio'</span>,             <span class="hljs-string">'listen for and compile scripts over stdio'</span>]
+  [<span class="hljs-string">'-l'</span>, <span class="hljs-string">'--literate'</span>,          <span class="hljs-string">'treat stdio as literate style coffeescript'</span>]
+  [<span class="hljs-string">'-t'</span>, <span class="hljs-string">'--transpile'</span>,         <span class="hljs-string">'pipe generated JavaScript through Babel'</span>]
+  [      <span class="hljs-string">'--tokens'</span>,            <span class="hljs-string">'print out the tokens that the lexer/rewriter produce'</span>]
+  [<span class="hljs-string">'-v'</span>, <span class="hljs-string">'--version'</span>,           <span class="hljs-string">'display the version number'</span>]
+  [<span class="hljs-string">'-w'</span>, <span class="hljs-string">'--watch'</span>,             <span class="hljs-string">'watch scripts for changes and rerun commands'</span>]
 ]</pre></div></div>
             
         </li>
@@ -238,7 +239,10 @@ sources      = []
 sourceCode   = []
 notSources   = {}
 watchedDirs  = {}
-optionParser = <span class="hljs-literal">null</span></pre></div></div>
+optionParser = <span class="hljs-literal">null</span>
+
+exports.buildCSOptionParser = buildCSOptionParser = <span class="hljs-function">-&gt;</span>
+  <span class="hljs-keyword">new</span> optparse.OptionParser SWITCHES, BANNER</pre></div></div>
             
         </li>
         
@@ -256,7 +260,22 @@ Many flags cause us to divert before compiling anything. Flags passed after
             </div>
             
             <div class="content"><div class='highlight'><pre>exports.run = <span class="hljs-function">-&gt;</span>
-  parseOptions()</pre></div></div>
+  optionParser = buildCSOptionParser()
+  <span class="hljs-keyword">try</span> parseOptions()
+  <span class="hljs-keyword">catch</span> err
+    <span class="hljs-built_in">console</span>.error <span class="hljs-string">"option parsing error: <span class="hljs-subst">#{err.message}</span>"</span>
+    process.exit <span class="hljs-number">1</span>
+
+  <span class="hljs-keyword">if</span> (<span class="hljs-keyword">not</span> opts.doubleDashed) <span class="hljs-keyword">and</span> (opts.arguments[<span class="hljs-number">1</span>] <span class="hljs-keyword">is</span> <span class="hljs-string">'--'</span>)
+    printWarn <span class="hljs-string">'''
+      coffee was invoked with '--' as the second positional argument, which is
+      now deprecated. To pass '--' as an argument to a script to run, put an
+      additional '--' before the path to your script.
+
+      '--' will be removed from the argument list.
+    '''</span>
+    printWarn <span class="hljs-string">"The positional arguments were: <span class="hljs-subst">#{JSON.stringify opts.arguments}</span>"</span>
+    opts.arguments = [opts.arguments[<span class="hljs-number">0</span>]].concat opts.arguments[<span class="hljs-number">2.</span>.]</pre></div></div>
             
         </li>
         
@@ -287,7 +306,45 @@ Many flags cause us to divert before compiling anything. Flags passed after
   process.argv = process.argv[<span class="hljs-number">0.</span><span class="hljs-number">.1</span>].concat literals
   process.argv[<span class="hljs-number">0</span>] = <span class="hljs-string">'coffee'</span>
 
-  opts.output = path.resolve opts.output  <span class="hljs-keyword">if</span> opts.output
+  <span class="hljs-keyword">if</span> opts.output
+    outputBasename = path.basename opts.output
+    <span class="hljs-keyword">if</span> <span class="hljs-string">'.'</span> <span class="hljs-keyword">in</span> outputBasename <span class="hljs-keyword">and</span>
+       outputBasename <span class="hljs-keyword">not</span> <span class="hljs-keyword">in</span> [<span class="hljs-string">'.'</span>, <span class="hljs-string">'..'</span>] <span class="hljs-keyword">and</span>
+       <span class="hljs-keyword">not</span> helpers.ends(opts.output, path.sep)</pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-9">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-9">&#182;</a>
+              </div>
+              <p>An output filename was specified, e.g. <code>/dist/scripts.js</code>.</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>      opts.outputFilename = outputBasename
+      opts.outputPath = path.resolve path.dirname opts.output
+    <span class="hljs-keyword">else</span></pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-10">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-10">&#182;</a>
+              </div>
+              <p>An output path was specified, e.g. <code>/dist</code>.</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>      opts.outputFilename = <span class="hljs-literal">null</span>
+      opts.outputPath = path.resolve opts.output
+
   <span class="hljs-keyword">if</span> opts.join
     opts.join = path.resolve opts.join
     <span class="hljs-built_in">console</span>.error <span class="hljs-string">'''
@@ -310,19 +367,19 @@ Many flags cause us to divert before compiling anything. Flags passed after
 <span class="hljs-function">
 <span class="hljs-title">makePrelude</span> = <span class="hljs-params">(requires)</span> -&gt;</span>
   requires.map (<span class="hljs-built_in">module</span>) -&gt;
-    [_, name, <span class="hljs-built_in">module</span>] = match <span class="hljs-keyword">if</span> match = <span class="hljs-built_in">module</span>.match(<span class="hljs-regexp">/^(.*)=(.*)$/</span>)
-    name ||= helpers.baseFileName <span class="hljs-built_in">module</span>, <span class="hljs-literal">yes</span>, useWinPathSep
-    <span class="hljs-string">"<span class="hljs-subst">#{name}</span> = require('<span class="hljs-subst">#{<span class="hljs-built_in">module</span>}</span>')"</span>
+    [full, name, <span class="hljs-built_in">module</span>] = match <span class="hljs-keyword">if</span> match = <span class="hljs-built_in">module</span>.match(<span class="hljs-regexp">/^(.*)=(.*)$/</span>)
+    name <span class="hljs-keyword">or</span>= helpers.baseFileName <span class="hljs-built_in">module</span>, <span class="hljs-literal">yes</span>, useWinPathSep
+    <span class="hljs-string">"global['<span class="hljs-subst">#{name}</span>'] = require('<span class="hljs-subst">#{<span class="hljs-built_in">module</span>}</span>')"</span>
   .join <span class="hljs-string">';'</span></pre></div></div>
             
         </li>
         
         
-        <li id="section-9">
+        <li id="section-11">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-9">&#182;</a>
+                <a class="pilcrow" href="#section-11">&#182;</a>
               </div>
               <p>Compile a path, which could be a script or a directory. If a directory
 is passed, recursively compile all ‘.coffee’, ‘.litcoffee’, and ‘.coffee.md’
@@ -364,7 +421,7 @@ extension source files in it and all subdirectories.</p>
       code = fs.readFileSync source
     <span class="hljs-keyword">catch</span> err
       <span class="hljs-keyword">if</span> err.code <span class="hljs-keyword">is</span> <span class="hljs-string">'ENOENT'</span> <span class="hljs-keyword">then</span> <span class="hljs-keyword">return</span> <span class="hljs-keyword">else</span> <span class="hljs-keyword">throw</span> err
-    compileScript(source, code.toString(), base)
+    compileScript source, code.toString(), base
   <span class="hljs-keyword">else</span>
     notSources[source] = <span class="hljs-literal">yes</span>
 <span class="hljs-function">
@@ -381,53 +438,56 @@ extension source files in it and all subdirectories.</p>
         </li>
         
         
-        <li id="section-10">
+        <li id="section-12">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-10">&#182;</a>
+                <a class="pilcrow" href="#section-12">&#182;</a>
               </div>
               <p>Compile a single source script, containing the given code, according to the
-requested options. If evaluating the script directly sets <code>__filename</code>,
+requested options. If evaluating the script directly, set <code>__filename</code>,
 <code>__dirname</code> and <code>module.filename</code> to be correct relative to the script’s path.</p>
 
             </div>
             
             <div class="content"><div class='highlight'><pre><span class="hljs-function"><span class="hljs-title">compileScript</span> = <span class="hljs-params">(file, input, base = <span class="hljs-literal">null</span>)</span> -&gt;</span>
-  o = opts
   options = compileOptions file, base
   <span class="hljs-keyword">try</span>
-    t = task = {file, input, options}
+    task = {file, input, options}
     CoffeeScript.emit <span class="hljs-string">'compile'</span>, task
-    <span class="hljs-keyword">if</span> o.tokens
-      printTokens CoffeeScript.tokens t.input, t.options
-    <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span> o.nodes
-      printLine CoffeeScript.nodes(t.input, t.options).toString().trim()
-    <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span> o.run
+    <span class="hljs-keyword">if</span> opts.tokens
+      printTokens CoffeeScript.tokens task.input, task.options
+    <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span> opts.nodes
+      printLine CoffeeScript.nodes(task.input, task.options).toString().trim()
+    <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span> opts.run
       CoffeeScript.register()
-      CoffeeScript.eval opts.prelude, t.options <span class="hljs-keyword">if</span> opts.prelude
-      CoffeeScript.run t.input, t.options
-    <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span> o.join <span class="hljs-keyword">and</span> t.file <span class="hljs-keyword">isnt</span> o.join
-      t.input = helpers.invertLiterate t.input <span class="hljs-keyword">if</span> helpers.isLiterate file
-      sourceCode[sources.indexOf(t.file)] = t.input
+      CoffeeScript.eval opts.prelude, task.options <span class="hljs-keyword">if</span> opts.prelude
+      CoffeeScript.run task.input, task.options
+    <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span> opts.join <span class="hljs-keyword">and</span> task.file <span class="hljs-keyword">isnt</span> opts.join
+      task.input = helpers.invertLiterate task.input <span class="hljs-keyword">if</span> helpers.isLiterate file
+      sourceCode[sources.indexOf(task.file)] = task.input
       compileJoin()
     <span class="hljs-keyword">else</span>
-      compiled = CoffeeScript.compile t.input, t.options
-      t.output = compiled
-      <span class="hljs-keyword">if</span> o.map
-        t.output = compiled.js
-        t.sourceMap = compiled.v3SourceMap
+      compiled = CoffeeScript.compile task.input, task.options
+      task.output = compiled
+      <span class="hljs-keyword">if</span> opts.map
+        task.output = compiled.js
+        task.sourceMap = compiled.v3SourceMap
 
       CoffeeScript.emit <span class="hljs-string">'success'</span>, task
-      <span class="hljs-keyword">if</span> o.<span class="hljs-built_in">print</span>
-        printLine t.output.trim()
-      <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span> o.compile <span class="hljs-keyword">or</span> o.map
-        writeJs base, t.file, t.output, options.jsPath, t.sourceMap
+      <span class="hljs-keyword">if</span> opts.<span class="hljs-built_in">print</span>
+        printLine task.output.trim()
+      <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span> opts.compile <span class="hljs-keyword">or</span> opts.map
+        saveTo = <span class="hljs-keyword">if</span> opts.outputFilename <span class="hljs-keyword">and</span> sources.length <span class="hljs-keyword">is</span> <span class="hljs-number">1</span>
+          path.join opts.outputPath, opts.outputFilename
+        <span class="hljs-keyword">else</span>
+          options.jsPath
+        writeJs base, task.file, task.output, saveTo, task.sourceMap
   <span class="hljs-keyword">catch</span> err
     CoffeeScript.emit <span class="hljs-string">'failure'</span>, err, task
     <span class="hljs-keyword">return</span> <span class="hljs-keyword">if</span> CoffeeScript.listeners(<span class="hljs-string">'failure'</span>).length
     message = err?.stack <span class="hljs-keyword">or</span> <span class="hljs-string">"<span class="hljs-subst">#{err}</span>"</span>
-    <span class="hljs-keyword">if</span> o.watch
+    <span class="hljs-keyword">if</span> opts.watch
       printLine message + <span class="hljs-string">'\x07'</span>
     <span class="hljs-keyword">else</span>
       printWarn message
@@ -436,11 +496,11 @@ requested options. If evaluating the script directly sets <code>__filename</code
         </li>
         
         
-        <li id="section-11">
+        <li id="section-13">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-11">&#182;</a>
+                <a class="pilcrow" href="#section-13">&#182;</a>
               </div>
               <p>Attach the appropriate listeners to compile scripts incoming over <strong>stdin</strong>,
 and write them back to <strong>stdout</strong>.</p>
@@ -458,11 +518,11 @@ and write them back to <strong>stdout</strong>.</p>
         </li>
         
         
-        <li id="section-12">
+        <li id="section-14">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-12">&#182;</a>
+                <a class="pilcrow" href="#section-14">&#182;</a>
               </div>
               <p>If all of the source files are done being read, concatenate and compile
 them together.</p>
@@ -480,11 +540,11 @@ them together.</p>
         </li>
         
         
-        <li id="section-13">
+        <li id="section-15">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-13">&#182;</a>
+                <a class="pilcrow" href="#section-15">&#182;</a>
               </div>
               <p>Watch a source CoffeeScript file using <code>fs.watch</code>, recompiling it every
 time the file is updated. May be used in combination with other options,
@@ -540,11 +600,11 @@ such as <code>--print</code>.</p>
         </li>
         
         
-        <li id="section-14">
+        <li id="section-16">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-14">&#182;</a>
+                <a class="pilcrow" href="#section-16">&#182;</a>
               </div>
               <p>Watch a directory of files for new additions.</p>
 
@@ -591,11 +651,11 @@ such as <code>--print</code>.</p>
         </li>
         
         
-        <li id="section-15">
+        <li id="section-17">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-15">&#182;</a>
+                <a class="pilcrow" href="#section-17">&#182;</a>
               </div>
               <p>Remove a file from our source list, and source code cache. Optionally remove
 the compiled JS version as well.</p>
@@ -620,11 +680,11 @@ the compiled JS version as well.</p>
         </li>
         
         
-        <li id="section-16">
+        <li id="section-18">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-16">&#182;</a>
+                <a class="pilcrow" href="#section-18">&#182;</a>
               </div>
               <p>Get the corresponding output JavaScript path for a source file.</p>
 
@@ -633,22 +693,22 @@ the compiled JS version as well.</p>
             <div class="content"><div class='highlight'><pre><span class="hljs-function"><span class="hljs-title">outputPath</span> = <span class="hljs-params">(source, base, extension=<span class="hljs-string">".js"</span>)</span> -&gt;</span>
   basename  = helpers.baseFileName source, <span class="hljs-literal">yes</span>, useWinPathSep
   srcDir    = path.dirname source
-  <span class="hljs-keyword">if</span> <span class="hljs-keyword">not</span> opts.output
-    dir = srcDir
+  dir = <span class="hljs-keyword">unless</span> opts.outputPath
+    srcDir
   <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span> source <span class="hljs-keyword">is</span> base
-    dir = opts.output
+    opts.outputPath
   <span class="hljs-keyword">else</span>
-    dir = path.join opts.output, path.relative base, srcDir
+    path.join opts.outputPath, path.relative base, srcDir
   path.join dir, basename + extension</pre></div></div>
             
         </li>
         
         
-        <li id="section-17">
+        <li id="section-19">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-17">&#182;</a>
+                <a class="pilcrow" href="#section-19">&#182;</a>
               </div>
               <p>Recursively mkdir, like <code>mkdir -p</code>.</p>
 
@@ -670,11 +730,11 @@ the compiled JS version as well.</p>
         </li>
         
         
-        <li id="section-18">
+        <li id="section-20">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-18">&#182;</a>
+                <a class="pilcrow" href="#section-20">&#182;</a>
               </div>
               <p>Write out a JavaScript source file with the compiled code. By default, files
 are written out in <code>cwd</code> as <code>.js</code> files with the same name, but the output
@@ -708,11 +768,11 @@ same directory as the <code>.js</code> file.</p>
         </li>
         
         
-        <li id="section-19">
+        <li id="section-21">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-19">&#182;</a>
+                <a class="pilcrow" href="#section-21">&#182;</a>
               </div>
               <p>Convenience for cleaner setTimeouts.</p>
 
@@ -723,11 +783,11 @@ same directory as the <code>.js</code> file.</p>
         </li>
         
         
-        <li id="section-20">
+        <li id="section-22">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-20">&#182;</a>
+                <a class="pilcrow" href="#section-22">&#182;</a>
               </div>
               <p>When watching scripts, it’s useful to log changes with the timestamp.</p>
 
@@ -739,11 +799,11 @@ same directory as the <code>.js</code> file.</p>
         </li>
         
         
-        <li id="section-21">
+        <li id="section-23">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-21">&#182;</a>
+                <a class="pilcrow" href="#section-23">&#182;</a>
               </div>
               <p>Pretty-print a stream of tokens, sans location data.</p>
 
@@ -759,11 +819,11 @@ same directory as the <code>.js</code> file.</p>
         </li>
         
         
-        <li id="section-22">
+        <li id="section-24">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-22">&#182;</a>
+                <a class="pilcrow" href="#section-24">&#182;</a>
               </div>
               <p>Use the <a href="optparse.html">OptionParser module</a> to extract all options from
 <code>process.argv</code> that are specified in <code>SWITCHES</code>.</p>
@@ -771,7 +831,6 @@ same directory as the <code>.js</code> file.</p>
             </div>
             
             <div class="content"><div class='highlight'><pre><span class="hljs-function"><span class="hljs-title">parseOptions</span> = -&gt;</span>
-  optionParser  = <span class="hljs-keyword">new</span> optparse.OptionParser SWITCHES, BANNER
   o = opts      = optionParser.parse process.argv[<span class="hljs-number">2.</span>.]
   o.compile     <span class="hljs-keyword">or</span>=  !!o.output
   o.run         = <span class="hljs-keyword">not</span> (o.compile <span class="hljs-keyword">or</span> o.<span class="hljs-built_in">print</span> <span class="hljs-keyword">or</span> o.map)
@@ -780,25 +839,140 @@ same directory as the <code>.js</code> file.</p>
         </li>
         
         
-        <li id="section-23">
+        <li id="section-25">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-23">&#182;</a>
+                <a class="pilcrow" href="#section-25">&#182;</a>
               </div>
               <p>The compile-time options to pass to the CoffeeScript compiler.</p>
 
             </div>
             
             <div class="content"><div class='highlight'><pre><span class="hljs-function"><span class="hljs-title">compileOptions</span> = <span class="hljs-params">(filename, base)</span> -&gt;</span>
-  answer = {
-    filename
+  <span class="hljs-keyword">if</span> opts.transpile</pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-26">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-26">&#182;</a>
+              </div>
+              <p>The user has requested that the CoffeeScript compiler also transpile
+via Babel. We use Babel as an <code>optionalDependency</code>; see
+<a href="https://docs.npmjs.com/files/package.json#optionaldependencies">https://docs.npmjs.com/files/package.json#optionaldependencies</a>.</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>    <span class="hljs-keyword">try</span>
+      <span class="hljs-built_in">require</span> <span class="hljs-string">'babel-core'</span>
+    <span class="hljs-keyword">catch</span>
+      <span class="hljs-built_in">console</span>.error <span class="hljs-string">'''
+        To use --transpile, you must have Babel installed and configured.
+        See http://coffeescript.org/#transpilation
+      '''</span>
+      process.exit <span class="hljs-number">1</span></pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-27">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-27">&#182;</a>
+              </div>
+              <p>We’re giving Babel only a string, not a filename or path to a file, so
+it doesn’t know where to search to find a <code>.babelrc</code> file or a <code>babel</code>
+key in a <code>package.json</code>. So if <code>opts.transpile</code> is an object, use that
+as Babel’s options; otherwise figure out what the options should be.</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>    <span class="hljs-keyword">unless</span> <span class="hljs-keyword">typeof</span> opts.transpile <span class="hljs-keyword">is</span> <span class="hljs-string">'object'</span></pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-28">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-28">&#182;</a>
+              </div>
+              <p>Find the options based on the path to the file being compiled.</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre><span class="hljs-function">      <span class="hljs-title">cantFindOptions</span> = -&gt;</span>
+        <span class="hljs-built_in">console</span>.error <span class="hljs-string">'''
+          To use the transpile option, there must be a .babelrc file
+          (or a package.json file with a "babel" key) in the path of the file
+          to be compiled, or in the path of the current working directory.
+          If you are compiling a string via the Node API, the transpile option
+          must be an object with the options to pass to Babel.
+          See http://coffeescript.org/#transpilation
+        '''</span>
+        process.exit <span class="hljs-number">1</span>
+
+      checkPath = <span class="hljs-keyword">if</span> filename
+        path.dirname filename
+      <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span> base
+        base
+      <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span> process?
+        process.cwd()
+      <span class="hljs-keyword">else</span>
+        cantFindOptions()
+
+      <span class="hljs-keyword">loop</span>
+        <span class="hljs-keyword">try</span>
+          opts.transpile = JSON.parse fs.readFileSync path.join(checkPath, <span class="hljs-string">'.babelrc'</span>), <span class="hljs-string">'utf-8'</span>
+          <span class="hljs-keyword">break</span>
+        <span class="hljs-keyword">catch</span>
+          <span class="hljs-keyword">try</span>
+            packageJson = JSON.parse fs.readFileSync(path.join(checkPath, <span class="hljs-string">'package.json'</span>), <span class="hljs-string">'utf-8'</span>)
+            <span class="hljs-keyword">if</span> packageJson.babel?
+              opts.transpile = packageJson.babel
+              <span class="hljs-keyword">break</span>
+
+        <span class="hljs-keyword">if</span> checkPath <span class="hljs-keyword">is</span> path.dirname checkPath <span class="hljs-comment"># We’ve reached the root.</span>
+          cantFindOptions()
+          <span class="hljs-keyword">break</span>
+        <span class="hljs-keyword">else</span>
+          checkPath = path.dirname checkPath</pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-29">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-29">&#182;</a>
+              </div>
+              <p>Pass a reference to Babel into the compiler, so that the transpile option
+is available for the CLI. We need to do this so that tools like Webpack
+can <code>require(&#39;coffeescript&#39;)</code> and build correctly, without trying to
+require Babel.</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>    opts.transpile.transpile = CoffeeScript.transpile
+  <span class="hljs-keyword">else</span>
+    opts.transpile = <span class="hljs-literal">no</span>
+
+  answer =
+    filename: filename
     literate: opts.literate <span class="hljs-keyword">or</span> helpers.isLiterate(filename)
     bare: opts.bare
     header: opts.compile <span class="hljs-keyword">and</span> <span class="hljs-keyword">not</span> opts[<span class="hljs-string">'no-header'</span>]
+    transpile: opts.transpile
     sourceMap: opts.map
     inlineMap: opts[<span class="hljs-string">'inline-map'</span>]
-  }
+
   <span class="hljs-keyword">if</span> filename
     <span class="hljs-keyword">if</span> base
       cwd = process.cwd()
@@ -820,11 +994,11 @@ same directory as the <code>.js</code> file.</p>
         </li>
         
         
-        <li id="section-24">
+        <li id="section-30">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-24">&#182;</a>
+                <a class="pilcrow" href="#section-30">&#182;</a>
               </div>
               <p>Start up a new Node.js instance with the arguments in <code>--nodejs</code> passed to
 the <code>node</code> binary, preserving the other options.</p>
@@ -839,16 +1013,19 @@ the <code>node</code> binary, preserving the other options.</p>
     cwd:        process.cwd()
     env:        process.env
     stdio:      [<span class="hljs-number">0</span>, <span class="hljs-number">1</span>, <span class="hljs-number">2</span>]
+  <span class="hljs-keyword">for</span> signal <span class="hljs-keyword">in</span> [<span class="hljs-string">'SIGINT'</span>, <span class="hljs-string">'SIGTERM'</span>]
+    process.<span class="hljs-literal">on</span> signal, <span class="hljs-keyword">do</span> (signal) -&gt;
+      -&gt; p.kill signal
   p.<span class="hljs-literal">on</span> <span class="hljs-string">'exit'</span>, <span class="hljs-function"><span class="hljs-params">(code)</span> -&gt;</span> process.exit code</pre></div></div>
             
         </li>
         
         
-        <li id="section-25">
+        <li id="section-31">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-25">&#182;</a>
+                <a class="pilcrow" href="#section-31">&#182;</a>
               </div>
               <p>Print the <code>--help</code> usage message and exit. Deprecated switches are not
 shown.</p>
@@ -856,16 +1033,16 @@ shown.</p>
             </div>
             
             <div class="content"><div class='highlight'><pre><span class="hljs-function"><span class="hljs-title">usage</span> = -&gt;</span>
-  printLine (<span class="hljs-keyword">new</span> optparse.OptionParser SWITCHES, BANNER).help()</pre></div></div>
+  printLine optionParser.help()</pre></div></div>
             
         </li>
         
         
-        <li id="section-26">
+        <li id="section-32">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-26">&#182;</a>
+                <a class="pilcrow" href="#section-32">&#182;</a>
               </div>
               <p>Print the <code>--version</code> message and exit.</p>
 

docs/v2/annotated-source/grammar.html

@@ -115,17 +115,17 @@
               <div class="pilwrap ">
                 <a class="pilcrow" href="#section-1">&#182;</a>
               </div>
-              <p>The CoffeeScript parser is generated by <a href="http://github.com/zaach/jison">Jison</a>
+              <p>The CoffeeScript parser is generated by <a href="https://github.com/zaach/jison">Jison</a>
 from this grammar file. Jison is a bottom-up parser generator, similar in
 style to <a href="http://www.gnu.org/software/bison">Bison</a>, implemented in JavaScript.
-It can recognize <a href="http://en.wikipedia.org/wiki/LR_grammar">LALR(1), LR(0), SLR(1), and LR(1)</a>
+It can recognize <a href="https://en.wikipedia.org/wiki/LR_grammar">LALR(1), LR(0), SLR(1), and LR(1)</a>
 type grammars. To create the Jison parser, we list the pattern to match
 on the left-hand side, and the action to take (usually the creation of syntax
 tree nodes) on the right. As the parser runs, it
 shifts tokens from our token stream, from left to right, and
-<a href="http://en.wikipedia.org/wiki/Bottom-up_parsing">attempts to match</a>
+<a href="https://en.wikipedia.org/wiki/Bottom-up_parsing">attempts to match</a>
 the token sequence against the rules below. When a match can be made, it
-reduces into the <a href="http://en.wikipedia.org/wiki/Terminal_and_nonterminal_symbols">nonterminal</a>
+reduces into the <a href="https://en.wikipedia.org/wiki/Terminal_and_nonterminal_symbols">nonterminal</a>
 (the enclosing name at the top), and we proceed from there.</p>
 <p>If you run the <code>cake build:parser</code> command, Jison constructs a parse table
 from our rules and saves it into <code>lib/parser.js</code>.</p>
@@ -199,7 +199,7 @@ wrapper and just returning the value directly.</p>
                 <a class="pilcrow" href="#section-6">&#182;</a>
               </div>
               <p>Our handy DSL for Jison grammar generation, thanks to
-<a href="http://github.com/creationix">Tim Caswell</a>. For every rule in the grammar,
+<a href="https://github.com/creationix">Tim Caswell</a>. For every rule in the grammar,
 we pass the pattern-defining string, the action to run, and extra options,
 optionally. If no action is specified, we simply pass the value of the
 previous nonterminal.</p>
@@ -209,8 +209,8 @@ previous nonterminal.</p>
             <div class="content"><div class='highlight'><pre><span class="hljs-function"><span class="hljs-title">o</span> = <span class="hljs-params">(patternString, action, options)</span> -&gt;</span>
   patternString = patternString.replace <span class="hljs-regexp">/\s{2,}/g</span>, <span class="hljs-string">' '</span>
   patternCount = patternString.split(<span class="hljs-string">' '</span>).length
-  <span class="hljs-keyword">return</span> [patternString, <span class="hljs-string">'$$ = $1;'</span>, options] <span class="hljs-keyword">unless</span> action
-  action = <span class="hljs-keyword">if</span> match = unwrap.exec action <span class="hljs-keyword">then</span> match[<span class="hljs-number">1</span>] <span class="hljs-keyword">else</span> <span class="hljs-string">"(<span class="hljs-subst">#{action}</span>())"</span></pre></div></div>
+  <span class="hljs-keyword">if</span> action
+    action = <span class="hljs-keyword">if</span> match = unwrap.exec action <span class="hljs-keyword">then</span> match[<span class="hljs-number">1</span>] <span class="hljs-keyword">else</span> <span class="hljs-string">"(<span class="hljs-subst">#{action}</span>())"</span></pre></div></div>
             
         </li>
         
@@ -221,12 +221,12 @@ previous nonterminal.</p>
               <div class="pilwrap ">
                 <a class="pilcrow" href="#section-7">&#182;</a>
               </div>
-              <p>All runtime functions we need are defined on “yy”</p>
+              <p>All runtime functions we need are defined on <code>yy</code></p>
 
             </div>
             
-            <div class="content"><div class='highlight'><pre>  action = action.replace <span class="hljs-regexp">/\bnew /g</span>, <span class="hljs-string">'$&amp;yy.'</span>
-  action = action.replace <span class="hljs-regexp">/\b(?:Block\.wrap|extend)\b/g</span>, <span class="hljs-string">'yy.$&amp;'</span></pre></div></div>
+            <div class="content"><div class='highlight'><pre>    action = action.replace <span class="hljs-regexp">/\bnew /g</span>, <span class="hljs-string">'$&amp;yy.'</span>
+    action = action.replace <span class="hljs-regexp">/\b(?:Block\.wrap|extend)\b/g</span>, <span class="hljs-string">'yy.$&amp;'</span></pre></div></div>
             
         </li>
         
@@ -237,22 +237,23 @@ previous nonterminal.</p>
               <div class="pilwrap ">
                 <a class="pilcrow" href="#section-8">&#182;</a>
               </div>
-              <p>Returns a function which adds location data to the first parameter passed
-in, and returns the parameter.  If the parameter is not a node, it will
-just be passed through unaffected.</p>
+              <p>Returns strings of functions to add to <code>parser.js</code> which add extra data
+that nodes may have, such as comments or location data. Location data
+is added to the first parameter passed in, and the parameter is returned.
+If the parameter is not a node, it will just be passed through unaffected.</p>
 
             </div>
             
-            <div class="content"><div class='highlight'><pre><span class="hljs-function">  <span class="hljs-title">addLocationDataFn</span> = <span class="hljs-params">(first, last)</span> -&gt;</span>
-    <span class="hljs-keyword">if</span> <span class="hljs-keyword">not</span> last
-      <span class="hljs-string">"yy.addLocationDataFn(@<span class="hljs-subst">#{first}</span>)"</span>
-    <span class="hljs-keyword">else</span>
-      <span class="hljs-string">"yy.addLocationDataFn(@<span class="hljs-subst">#{first}</span>, @<span class="hljs-subst">#{last}</span>)"</span>
+            <div class="content"><div class='highlight'><pre><span class="hljs-function">    <span class="hljs-title">getAddDataToNodeFunctionString</span> = <span class="hljs-params">(first, last)</span> -&gt;</span>
+      <span class="hljs-string">"yy.addDataToNode(yy, @<span class="hljs-subst">#{first}</span><span class="hljs-subst">#{<span class="hljs-keyword">if</span> last <span class="hljs-keyword">then</span> <span class="hljs-string">", @<span class="hljs-subst">#{last}</span>"</span> <span class="hljs-keyword">else</span> <span class="hljs-string">''</span>}</span>)"</span>
 
-  action = action.replace <span class="hljs-regexp">/LOC\(([0-9]*)\)/g</span>, addLocationDataFn(<span class="hljs-string">'$1'</span>)
-  action = action.replace <span class="hljs-regexp">/LOC\(([0-9]*),\s*([0-9]*)\)/g</span>, addLocationDataFn(<span class="hljs-string">'$1'</span>, <span class="hljs-string">'$2'</span>)
+    action = action.replace <span class="hljs-regexp">/LOC\(([0-9]*)\)/g</span>, getAddDataToNodeFunctionString(<span class="hljs-string">'$1'</span>)
+    action = action.replace <span class="hljs-regexp">/LOC\(([0-9]*),\s*([0-9]*)\)/g</span>, getAddDataToNodeFunctionString(<span class="hljs-string">'$1'</span>, <span class="hljs-string">'$2'</span>)
+    performActionFunctionString = <span class="hljs-string">"$$ = <span class="hljs-subst">#{getAddDataToNodeFunctionString(<span class="hljs-number">1</span>, patternCount)}</span>(<span class="hljs-subst">#{action}</span>);"</span>
+  <span class="hljs-keyword">else</span>
+    performActionFunctionString = <span class="hljs-string">'$$ = $1;'</span>
 
-  [patternString, <span class="hljs-string">"$$ = <span class="hljs-subst">#{addLocationDataFn(<span class="hljs-number">1</span>, patternCount)}</span>(<span class="hljs-subst">#{action}</span>);"</span>, options]</pre></div></div>
+  [patternString, performActionFunctionString, options]</pre></div></div>
             
         </li>
         
@@ -292,7 +293,7 @@ just be passed through unaffected.</p>
 the key to a list of alternative matches. With each match’s action, the
 dollar-sign variables are provided by Jison as references to the value of
 their numeric position, so in this rule:</p>
-<pre><code><span class="hljs-string">"Expression UNLESS Expression"</span>
+<pre><code><span class="hljs-string">'Expression UNLESS Expression'</span>
 </code></pre><p><code>$1</code> would be the value of the first <code>Expression</code>, <code>$2</code> would be the token
 for the <code>UNLESS</code> terminal, and <code>$3</code> would be the value of the second
 <code>Expression</code>.</p>
@@ -380,7 +381,6 @@ grammar.</p>
             
             <div class="content"><div class='highlight'><pre>  Statement: [
     o <span class="hljs-string">'Return'</span>
-    o <span class="hljs-string">'Comment'</span>
     o <span class="hljs-string">'STATEMENT'</span>,                              <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> StatementLiteral $<span class="hljs-number">1</span>
     o <span class="hljs-string">'Import'</span>
     o <span class="hljs-string">'Export'</span>
@@ -404,7 +404,6 @@ them somewhat circular.</p>
             
             <div class="content"><div class='highlight'><pre>  Expression: [
     o <span class="hljs-string">'Value'</span>
-    o <span class="hljs-string">'Invocation'</span>
     o <span class="hljs-string">'Code'</span>
     o <span class="hljs-string">'Operation'</span>
     o <span class="hljs-string">'Assign'</span>
@@ -446,6 +445,7 @@ token stream.</p>
 
   Identifier: [
     o <span class="hljs-string">'IDENTIFIER'</span>,                             <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> IdentifierLiteral $<span class="hljs-number">1</span>
+    o <span class="hljs-string">'CSX_TAG'</span>,                                <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> CSXTag $<span class="hljs-number">1</span>
   ]
 
   Property: [
@@ -499,11 +499,11 @@ through and printed to JavaScript.</p>
     o <span class="hljs-string">'AlphaNumeric'</span>
     o <span class="hljs-string">'JS'</span>,                                     <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> PassthroughLiteral $<span class="hljs-number">1</span>
     o <span class="hljs-string">'Regex'</span>
-    o <span class="hljs-string">'UNDEFINED'</span>,                              <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> UndefinedLiteral
-    o <span class="hljs-string">'NULL'</span>,                                   <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> NullLiteral
+    o <span class="hljs-string">'UNDEFINED'</span>,                              <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> UndefinedLiteral $<span class="hljs-number">1</span>
+    o <span class="hljs-string">'NULL'</span>,                                   <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> NullLiteral $<span class="hljs-number">1</span>
     o <span class="hljs-string">'BOOL'</span>,                                   <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> BooleanLiteral $<span class="hljs-number">1</span>
     o <span class="hljs-string">'INFINITY'</span>,                               <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> InfinityLiteral $<span class="hljs-number">1</span>
-    o <span class="hljs-string">'NAN'</span>,                                    <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> NaNLiteral
+    o <span class="hljs-string">'NAN'</span>,                                    <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> NaNLiteral $<span class="hljs-number">1</span>
   ]</pre></div></div>
             
         </li>
@@ -541,6 +541,7 @@ the ordinary <strong>Assign</strong> is that these allow numbers and strings as
             
             <div class="content"><div class='highlight'><pre>  AssignObj: [
     o <span class="hljs-string">'ObjAssignable'</span>,                          <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Value $<span class="hljs-number">1</span>
+    o <span class="hljs-string">'ObjRestValue'</span>
     o <span class="hljs-string">'ObjAssignable : Expression'</span>,             <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Assign LOC(<span class="hljs-number">1</span>)(<span class="hljs-keyword">new</span> Value $<span class="hljs-number">1</span>), $<span class="hljs-number">3</span>, <span class="hljs-string">'object'</span>,
                                                               operatorToken: LOC(<span class="hljs-number">2</span>)(<span class="hljs-keyword">new</span> Literal $<span class="hljs-number">2</span>)
     o <span class="hljs-string">'ObjAssignable :
@@ -551,7 +552,6 @@ the ordinary <strong>Assign</strong> is that these allow numbers and strings as
     o <span class="hljs-string">'SimpleObjAssignable =
        INDENT Expression OUTDENT'</span>,              <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Assign LOC(<span class="hljs-number">1</span>)(<span class="hljs-keyword">new</span> Value $<span class="hljs-number">1</span>), $<span class="hljs-number">4</span>, <span class="hljs-literal">null</span>,
                                                               operatorToken: LOC(<span class="hljs-number">2</span>)(<span class="hljs-keyword">new</span> Literal $<span class="hljs-number">2</span>)
-    o <span class="hljs-string">'Comment'</span>
   ]
 
   SimpleObjAssignable: [
@@ -574,23 +574,36 @@ the ordinary <strong>Assign</strong> is that these allow numbers and strings as
               <div class="pilwrap ">
                 <a class="pilcrow" href="#section-22">&#182;</a>
               </div>
-              <p>A return statement from a function body.</p>
+              <p>Object literal spread properties.</p>
 
             </div>
             
-            <div class="content"><div class='highlight'><pre>  Return: [
-    o <span class="hljs-string">'RETURN Expression'</span>,                      <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Return $<span class="hljs-number">2</span>
-    o <span class="hljs-string">'RETURN'</span>,                                 <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Return
+            <div class="content"><div class='highlight'><pre>  ObjRestValue: [
+    o <span class="hljs-string">'SimpleObjAssignable ...'</span>, <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Splat <span class="hljs-keyword">new</span> Value $<span class="hljs-number">1</span>
+    o <span class="hljs-string">'... SimpleObjAssignable'</span>, <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Splat <span class="hljs-keyword">new</span> Value $<span class="hljs-number">2</span>
+    o <span class="hljs-string">'ObjSpreadExpr ...'</span>,       <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Splat $<span class="hljs-number">1</span>
+    o <span class="hljs-string">'... ObjSpreadExpr'</span>,       <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Splat $<span class="hljs-number">2</span>
   ]
 
-  YieldReturn: [
-    o <span class="hljs-string">'YIELD RETURN Expression'</span>,                <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> YieldReturn $<span class="hljs-number">3</span>
-    o <span class="hljs-string">'YIELD RETURN'</span>,                           <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> YieldReturn
+  ObjSpreadExpr: [
+    o <span class="hljs-string">'ObjSpreadIdentifier'</span>
+    o <span class="hljs-string">'Object'</span>
+    o <span class="hljs-string">'Parenthetical'</span>
+    o <span class="hljs-string">'Super'</span>
+    o <span class="hljs-string">'This'</span>
+    o <span class="hljs-string">'SUPER Arguments'</span>,               <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> SuperCall LOC(<span class="hljs-number">1</span>)(<span class="hljs-keyword">new</span> Super), $<span class="hljs-number">2</span>, <span class="hljs-literal">no</span>, $<span class="hljs-number">1</span>
+    o <span class="hljs-string">'SimpleObjAssignable Arguments'</span>, <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Call (<span class="hljs-keyword">new</span> Value $<span class="hljs-number">1</span>), $<span class="hljs-number">2</span>
+    o <span class="hljs-string">'ObjSpreadExpr Arguments'</span>,       <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Call $<span class="hljs-number">1</span>, $<span class="hljs-number">2</span>
   ]
 
-  AwaitReturn: [
-    o <span class="hljs-string">'AWAIT RETURN Expression'</span>,                <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> AwaitReturn $<span class="hljs-number">3</span>
-    o <span class="hljs-string">'AWAIT RETURN'</span>,                           <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> AwaitReturn
+  ObjSpreadIdentifier: [
+    o <span class="hljs-string">'SimpleObjAssignable ObjSpreadAccessor'</span>, <span class="hljs-function">-&gt;</span> (<span class="hljs-keyword">new</span> Value $<span class="hljs-number">1</span>).add $<span class="hljs-number">2</span>
+    o <span class="hljs-string">'ObjSpreadExpr ObjSpreadAccessor'</span>,       <span class="hljs-function">-&gt;</span> (<span class="hljs-keyword">new</span> Value $<span class="hljs-number">1</span>).add $<span class="hljs-number">2</span>
+  ]
+
+  ObjSpreadAccessor: [
+    o <span class="hljs-string">'. Property'</span>,                             <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Access $<span class="hljs-number">2</span>
+    o <span class="hljs-string">'INDEX_START IndexValue INDEX_END'</span>,       <span class="hljs-function">-&gt;</span> $<span class="hljs-number">2</span>
   ]</pre></div></div>
             
         </li>
@@ -602,12 +615,24 @@ the ordinary <strong>Assign</strong> is that these allow numbers and strings as
               <div class="pilwrap ">
                 <a class="pilcrow" href="#section-23">&#182;</a>
               </div>
-              <p>A block comment.</p>
+              <p>A return statement from a function body.</p>
 
             </div>
             
-            <div class="content"><div class='highlight'><pre>  Comment: [
-    o <span class="hljs-string">'HERECOMMENT'</span>,                            <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Comment $<span class="hljs-number">1</span>
+            <div class="content"><div class='highlight'><pre>  Return: [
+    o <span class="hljs-string">'RETURN Expression'</span>,                      <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Return $<span class="hljs-number">2</span>
+    o <span class="hljs-string">'RETURN INDENT Object OUTDENT'</span>,           <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Return <span class="hljs-keyword">new</span> Value $<span class="hljs-number">3</span>
+    o <span class="hljs-string">'RETURN'</span>,                                 <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Return
+  ]
+
+  YieldReturn: [
+    o <span class="hljs-string">'YIELD RETURN Expression'</span>,                <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> YieldReturn $<span class="hljs-number">3</span>
+    o <span class="hljs-string">'YIELD RETURN'</span>,                           <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> YieldReturn
+  ]
+
+  AwaitReturn: [
+    o <span class="hljs-string">'AWAIT RETURN Expression'</span>,                <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> AwaitReturn $<span class="hljs-number">3</span>
+    o <span class="hljs-string">'AWAIT RETURN'</span>,                           <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> AwaitReturn
   ]</pre></div></div>
             
         </li>
@@ -644,8 +669,8 @@ functions, and <code>=&gt;</code> is for functions bound to the current value of
             </div>
             
             <div class="content"><div class='highlight'><pre>  FuncGlyph: [
-    o <span class="hljs-string">'-&gt;'</span>,                                     <span class="hljs-function">-&gt;</span> <span class="hljs-string">'func'</span>
-    o <span class="hljs-string">'=&gt;'</span>,                                     <span class="hljs-function">-&gt;</span> <span class="hljs-string">'boundfunc'</span>
+    o <span class="hljs-string">'-&gt;'</span>,                                     <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> FuncGlyph $<span class="hljs-number">1</span>
+    o <span class="hljs-string">'=&gt;'</span>,                                     <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> FuncGlyph $<span class="hljs-number">1</span>
   ]</pre></div></div>
             
         </li>
@@ -704,6 +729,7 @@ that hoovers up the remaining arguments.</p>
             <div class="content"><div class='highlight'><pre>  Param: [
     o <span class="hljs-string">'ParamVar'</span>,                               <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Param $<span class="hljs-number">1</span>
     o <span class="hljs-string">'ParamVar ...'</span>,                           <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Param $<span class="hljs-number">1</span>, <span class="hljs-literal">null</span>, <span class="hljs-literal">on</span>
+    o <span class="hljs-string">'... ParamVar'</span>,                           <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Param $<span class="hljs-number">2</span>, <span class="hljs-literal">null</span>, <span class="hljs-literal">on</span>
     o <span class="hljs-string">'ParamVar = Expression'</span>,                  <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Param $<span class="hljs-number">1</span>, $<span class="hljs-number">3</span>
     o <span class="hljs-string">'...'</span>,                                    <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Expansion
   ]</pre></div></div>
@@ -743,6 +769,7 @@ that hoovers up the remaining arguments.</p>
             
             <div class="content"><div class='highlight'><pre>  Splat: [
     o <span class="hljs-string">'Expression ...'</span>,                         <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Splat $<span class="hljs-number">1</span>
+    o <span class="hljs-string">'... Expression'</span>,                         <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Splat $<span class="hljs-number">2</span>
   ]</pre></div></div>
             
         </li>
@@ -761,7 +788,7 @@ that hoovers up the remaining arguments.</p>
             <div class="content"><div class='highlight'><pre>  SimpleAssignable: [
     o <span class="hljs-string">'Identifier'</span>,                             <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Value $<span class="hljs-number">1</span>
     o <span class="hljs-string">'Value Accessor'</span>,                         <span class="hljs-function">-&gt;</span> $<span class="hljs-number">1.</span>add $<span class="hljs-number">2</span>
-    o <span class="hljs-string">'Invocation Accessor'</span>,                    <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Value $<span class="hljs-number">1</span>, [].concat $<span class="hljs-number">2</span>
+    o <span class="hljs-string">'Code Accessor'</span>,                          <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Value($<span class="hljs-number">1</span>).add $<span class="hljs-number">2</span>
     o <span class="hljs-string">'ThisProperty'</span>
   ]</pre></div></div>
             
@@ -803,8 +830,9 @@ as functions, indexed into, named as a class, etc.</p>
     o <span class="hljs-string">'Literal'</span>,                                <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Value $<span class="hljs-number">1</span>
     o <span class="hljs-string">'Parenthetical'</span>,                          <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Value $<span class="hljs-number">1</span>
     o <span class="hljs-string">'Range'</span>,                                  <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Value $<span class="hljs-number">1</span>
+    o <span class="hljs-string">'Invocation'</span>,                             <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Value $<span class="hljs-number">1</span>
     o <span class="hljs-string">'This'</span>
-    o <span class="hljs-string">'Super'</span>
+    o <span class="hljs-string">'Super'</span>,                                  <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Value $<span class="hljs-number">1</span>
   ]</pre></div></div>
             
         </li>
@@ -821,8 +849,8 @@ as functions, indexed into, named as a class, etc.</p>
             </div>
             
             <div class="content"><div class='highlight'><pre>  Super: [
-    o <span class="hljs-string">'SUPER . Property'</span>,                       <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Super LOC(<span class="hljs-number">3</span>) <span class="hljs-keyword">new</span> Access $<span class="hljs-number">3</span>
-    o <span class="hljs-string">'SUPER INDEX_START Expression INDEX_END'</span>, <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Super LOC(<span class="hljs-number">3</span>) <span class="hljs-keyword">new</span> Index $<span class="hljs-number">3</span>
+    o <span class="hljs-string">'SUPER . Property'</span>,                       <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Super LOC(<span class="hljs-number">3</span>)(<span class="hljs-keyword">new</span> Access $<span class="hljs-number">3</span>), [], <span class="hljs-literal">no</span>, $<span class="hljs-number">1</span>
+    o <span class="hljs-string">'SUPER INDEX_START Expression INDEX_END'</span>, <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Super LOC(<span class="hljs-number">3</span>)(<span class="hljs-keyword">new</span> Index $<span class="hljs-number">3</span>),  [], <span class="hljs-literal">no</span>, $<span class="hljs-number">1</span>
   ]</pre></div></div>
             
         </li>
@@ -863,7 +891,7 @@ or by array index or slice.</p>
             
             <div class="content"><div class='highlight'><pre>  Index: [
     o <span class="hljs-string">'INDEX_START IndexValue INDEX_END'</span>,       <span class="hljs-function">-&gt;</span> $<span class="hljs-number">2</span>
-    o <span class="hljs-string">'INDEX_SOAK  Index'</span>,                      <span class="hljs-function">-&gt;</span> extend $<span class="hljs-number">2</span>, soak : <span class="hljs-literal">yes</span>
+    o <span class="hljs-string">'INDEX_SOAK  Index'</span>,                      <span class="hljs-function">-&gt;</span> extend $<span class="hljs-number">2</span>, soak: <span class="hljs-literal">yes</span>
   ]
 
   IndexValue: [
@@ -996,6 +1024,7 @@ and optional references to the superclass.</p>
     o <span class="hljs-string">'Identifier AS Identifier'</span>,               <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> ExportSpecifier $<span class="hljs-number">1</span>, $<span class="hljs-number">3</span>
     o <span class="hljs-string">'Identifier AS DEFAULT'</span>,                  <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> ExportSpecifier $<span class="hljs-number">1</span>, <span class="hljs-keyword">new</span> Literal $<span class="hljs-number">3</span>
     o <span class="hljs-string">'DEFAULT'</span>,                                <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> ExportSpecifier <span class="hljs-keyword">new</span> Literal $<span class="hljs-number">1</span>
+    o <span class="hljs-string">'DEFAULT AS Identifier'</span>,                  <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> ExportSpecifier <span class="hljs-keyword">new</span> Literal($<span class="hljs-number">1</span>), $<span class="hljs-number">3</span>
   ]</pre></div></div>
             
         </li>
@@ -1014,8 +1043,7 @@ and optional references to the superclass.</p>
             <div class="content"><div class='highlight'><pre>  Invocation: [
     o <span class="hljs-string">'Value OptFuncExist String'</span>,              <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> TaggedTemplateCall $<span class="hljs-number">1</span>, $<span class="hljs-number">3</span>, $<span class="hljs-number">2</span>
     o <span class="hljs-string">'Value OptFuncExist Arguments'</span>,           <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Call $<span class="hljs-number">1</span>, $<span class="hljs-number">3</span>, $<span class="hljs-number">2</span>
-    o <span class="hljs-string">'Invocation OptFuncExist Arguments'</span>,      <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Call $<span class="hljs-number">1</span>, $<span class="hljs-number">3</span>, $<span class="hljs-number">2</span>
-    o <span class="hljs-string">'SUPER OptFuncExist Arguments'</span>,           <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> SuperCall LOC(<span class="hljs-number">1</span>)(<span class="hljs-keyword">new</span> Super), $<span class="hljs-number">3</span>, $<span class="hljs-number">2</span>
+    o <span class="hljs-string">'SUPER OptFuncExist Arguments'</span>,           <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> SuperCall LOC(<span class="hljs-number">1</span>)(<span class="hljs-keyword">new</span> Super), $<span class="hljs-number">3</span>, $<span class="hljs-number">2</span>, $<span class="hljs-number">1</span>
   ]</pre></div></div>
             
         </li>
@@ -1068,8 +1096,8 @@ and optional references to the superclass.</p>
             </div>
             
             <div class="content"><div class='highlight'><pre>  This: [
-    o <span class="hljs-string">'THIS'</span>,                                   <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Value <span class="hljs-keyword">new</span> ThisLiteral
-    o <span class="hljs-string">'@'</span>,                                      <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Value <span class="hljs-keyword">new</span> ThisLiteral
+    o <span class="hljs-string">'THIS'</span>,                                   <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Value <span class="hljs-keyword">new</span> ThisLiteral $<span class="hljs-number">1</span>
+    o <span class="hljs-string">'@'</span>,                                      <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Value <span class="hljs-keyword">new</span> ThisLiteral $<span class="hljs-number">1</span>
   ]</pre></div></div>
             
         </li>
@@ -1086,7 +1114,7 @@ and optional references to the superclass.</p>
             </div>
             
             <div class="content"><div class='highlight'><pre>  ThisProperty: [
-    o <span class="hljs-string">'@ Property'</span>,                             <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Value LOC(<span class="hljs-number">1</span>)(<span class="hljs-keyword">new</span> ThisLiteral), [LOC(<span class="hljs-number">2</span>)(<span class="hljs-keyword">new</span> Access($<span class="hljs-number">2</span>))], <span class="hljs-string">'this'</span>
+    o <span class="hljs-string">'@ Property'</span>,                             <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Value LOC(<span class="hljs-number">1</span>)(<span class="hljs-keyword">new</span> ThisLiteral $<span class="hljs-number">1</span>), [LOC(<span class="hljs-number">2</span>)(<span class="hljs-keyword">new</span> Access($<span class="hljs-number">2</span>))], <span class="hljs-string">'this'</span>
   ]</pre></div></div>
             
         </li>
@@ -1278,6 +1306,7 @@ having the newlines wouldn’t make sense.</p>
             
             <div class="content"><div class='highlight'><pre>  Throw: [
     o <span class="hljs-string">'THROW Expression'</span>,                       <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Throw $<span class="hljs-number">2</span>
+    o <span class="hljs-string">'THROW INDENT Object OUTDENT'</span>,            <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Throw <span class="hljs-keyword">new</span> Value $<span class="hljs-number">3</span>
   ]</pre></div></div>
             
         </li>
@@ -1589,7 +1618,6 @@ rules are necessary.</p>
        INDENT Expression OUTDENT'</span>,              <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Assign $<span class="hljs-number">1</span>, $<span class="hljs-number">4</span>, $<span class="hljs-number">2</span>
     o <span class="hljs-string">'SimpleAssignable COMPOUND_ASSIGN TERMINATOR
        Expression'</span>,                             <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Assign $<span class="hljs-number">1</span>, $<span class="hljs-number">4</span>, $<span class="hljs-number">2</span>
-    o <span class="hljs-string">'SimpleAssignable EXTENDS Expression'</span>,    <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Extends $<span class="hljs-number">1</span>, $<span class="hljs-number">3</span>
   ]</pre></div></div>
             
         </li>

docs/v2/annotated-source/helpers.html

@@ -121,9 +121,6 @@ arrays, count characters, that sort of thing.</p>
 
             </div>
             
-            <div class="content"><div class='highlight'><pre>
-marked = <span class="hljs-built_in">require</span> <span class="hljs-string">'marked'</span></pre></div></div>
-            
         </li>
         
         
@@ -133,27 +130,6 @@ marked = <span class="hljs-built_in">require</span> <span class="hljs-string">'m
               <div class="pilwrap ">
                 <a class="pilcrow" href="#section-2">&#182;</a>
               </div>
-              <p>marked.setOptions
-  renderer: new marked.Renderer()
-  gfm: true
-  tables: true
-  breaks: false
-  pedantic: false
-  sanitize: true
-  smartLists: true
-  smartypants: false</p>
-
-            </div>
-            
-        </li>
-        
-        
-        <li id="section-3">
-            <div class="annotation">
-              
-              <div class="pilwrap ">
-                <a class="pilcrow" href="#section-3">&#182;</a>
-              </div>
               <p>Peek at the beginning of a given string to see if it matches a sequence.</p>
 
             </div>
@@ -164,11 +140,11 @@ marked = <span class="hljs-built_in">require</span> <span class="hljs-string">'m
         </li>
         
         
-        <li id="section-4">
+        <li id="section-3">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-4">&#182;</a>
+                <a class="pilcrow" href="#section-3">&#182;</a>
               </div>
               <p>Peek at the end of a given string to see if it matches a sequence.</p>
 
@@ -181,11 +157,11 @@ marked = <span class="hljs-built_in">require</span> <span class="hljs-string">'m
         </li>
         
         
-        <li id="section-5">
+        <li id="section-4">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-5">&#182;</a>
+                <a class="pilcrow" href="#section-4">&#182;</a>
               </div>
               <p>Repeat a string <code>n</code> times.</p>
 
@@ -196,11 +172,11 @@ marked = <span class="hljs-built_in">require</span> <span class="hljs-string">'m
         </li>
         
         
-        <li id="section-6">
+        <li id="section-5">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-6">&#182;</a>
+                <a class="pilcrow" href="#section-5">&#182;</a>
               </div>
               <p>Use clever algorithm to have O(log(n)) string concatenation operations.</p>
 
@@ -216,11 +192,11 @@ marked = <span class="hljs-built_in">require</span> <span class="hljs-string">'m
         </li>
         
         
-        <li id="section-7">
+        <li id="section-6">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-7">&#182;</a>
+                <a class="pilcrow" href="#section-6">&#182;</a>
               </div>
               <p>Trim out all falsy values from an array.</p>
 
@@ -232,11 +208,11 @@ marked = <span class="hljs-built_in">require</span> <span class="hljs-string">'m
         </li>
         
         
-        <li id="section-8">
+        <li id="section-7">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-8">&#182;</a>
+                <a class="pilcrow" href="#section-7">&#182;</a>
               </div>
               <p>Count the number of occurrences of a string in a string.</p>
 
@@ -251,11 +227,11 @@ marked = <span class="hljs-built_in">require</span> <span class="hljs-string">'m
         </li>
         
         
-        <li id="section-9">
+        <li id="section-8">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-9">&#182;</a>
+                <a class="pilcrow" href="#section-8">&#182;</a>
               </div>
               <p>Merge objects, returning a fresh copy with attributes from both sides.
 Used every time <code>Base#compile</code> is called, to allow properties in the
@@ -269,11 +245,11 @@ options hash to propagate down the tree without polluting other branches.</p>
         </li>
         
         
-        <li id="section-10">
+        <li id="section-9">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-10">&#182;</a>
+                <a class="pilcrow" href="#section-9">&#182;</a>
               </div>
               <p>Extend a source object with the properties of another object (shallow copy).</p>
 
@@ -287,11 +263,11 @@ options hash to propagate down the tree without polluting other branches.</p>
         </li>
         
         
-        <li id="section-11">
+        <li id="section-10">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-11">&#182;</a>
+                <a class="pilcrow" href="#section-10">&#182;</a>
               </div>
               <p>Return a flattened version of an array.
 Handy for getting a list of <code>children</code> from the nodes.</p>
@@ -310,11 +286,11 @@ Handy for getting a list of <code>children</code> from the nodes.</p>
         </li>
         
         
-        <li id="section-12">
+        <li id="section-11">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-12">&#182;</a>
+                <a class="pilcrow" href="#section-11">&#182;</a>
               </div>
               <p>Delete a key from an object, returning the value. Useful when a node is
 looking for a particular method in an options hash.</p>
@@ -329,11 +305,11 @@ looking for a particular method in an options hash.</p>
         </li>
         
         
-        <li id="section-13">
+        <li id="section-12">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-13">&#182;</a>
+                <a class="pilcrow" href="#section-12">&#182;</a>
               </div>
               <p>Typical Array::some</p>
 
@@ -346,82 +322,53 @@ looking for a particular method in an options hash.</p>
         </li>
         
         
-        <li id="section-14">
+        <li id="section-13">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-14">&#182;</a>
+                <a class="pilcrow" href="#section-13">&#182;</a>
               </div>
-              <p>Simple function for extracting code from Literate CoffeeScript by stripping
+              <p>Helper function for extracting code from Literate CoffeeScript by stripping
 out all non-code blocks, producing a string of CoffeeScript code that can
 be compiled “normally.”</p>
 
             </div>
             
-            <div class="content"><div class='highlight'><pre>exports.invertLiterate = <span class="hljs-function"><span class="hljs-params">(code)</span> -&gt;</span></pre></div></div>
+            <div class="content"><div class='highlight'><pre>exports.invertLiterate = <span class="hljs-function"><span class="hljs-params">(code)</span> -&gt;</span>
+  out = []
+  blankLine = <span class="hljs-regexp">/^\s*$/</span>
+  indented = <span class="hljs-regexp">/^[\t ]/</span>
+  listItemStart = <span class="hljs-regexp">/// ^
+    (?:\t?|\ {0,3})   <span class="hljs-comment"># Up to one tab, or up to three spaces, or neither;</span>
+    (?:
+      [\*\-\+] |      <span class="hljs-comment"># followed by `*`, `-` or `+`;</span>
+      [0-9]{1,9}\.    <span class="hljs-comment"># or by an integer up to 9 digits long, followed by a period;</span>
+    )
+    [\ \t]            <span class="hljs-comment"># followed by a space or a tab.</span>
+  ///</span>
+  insideComment = <span class="hljs-literal">no</span>
+  <span class="hljs-keyword">for</span> line <span class="hljs-keyword">in</span> code.split(<span class="hljs-string">'\n'</span>)
+    <span class="hljs-keyword">if</span> blankLine.test(line)
+      insideComment = <span class="hljs-literal">no</span>
+      out.push line
+    <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span> insideComment <span class="hljs-keyword">or</span> listItemStart.test(line)
+      insideComment = <span class="hljs-literal">yes</span>
+      out.push <span class="hljs-string">"# <span class="hljs-subst">#{line}</span>"</span>
+    <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span> <span class="hljs-keyword">not</span> insideComment <span class="hljs-keyword">and</span> indented.test(line)
+      out.push line
+    <span class="hljs-keyword">else</span>
+      insideComment = <span class="hljs-literal">yes</span>
+      out.push <span class="hljs-string">"# <span class="hljs-subst">#{line}</span>"</span>
+  out.join <span class="hljs-string">'\n'</span></pre></div></div>
             
         </li>
         
         
-        <li id="section-15">
+        <li id="section-14">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-15">&#182;</a>
-              </div>
-              <p>Create a placeholder for tabs, that isn’t used anywhere in <code>code</code>, and then
-re-insert the tabs after code extraction.</p>
-
-            </div>
-            
-            <div class="content"><div class='highlight'><pre><span class="hljs-function">  <span class="hljs-title">generateRandomToken</span> = -&gt;</span>
-    <span class="hljs-string">"<span class="hljs-subst">#{Math.random() * Date.now()}</span>"</span>
-  <span class="hljs-keyword">while</span> token <span class="hljs-keyword">is</span> <span class="hljs-literal">undefined</span> <span class="hljs-keyword">or</span> code.indexOf(token) <span class="hljs-keyword">isnt</span> <span class="hljs-number">-1</span>
-    token = generateRandomToken()
-
-  code = code.replace <span class="hljs-string">"\t"</span>, token</pre></div></div>
-            
-        </li>
-        
-        
-        <li id="section-16">
-            <div class="annotation">
-              
-              <div class="pilwrap ">
-                <a class="pilcrow" href="#section-16">&#182;</a>
-              </div>
-              <p>Parse as markdown, discard everything except code blocks.</p>
-
-            </div>
-            
-            <div class="content"><div class='highlight'><pre>  out = <span class="hljs-string">""</span>
-  <span class="hljs-keyword">for</span> item <span class="hljs-keyword">in</span> marked.lexer code, {}
-    out += <span class="hljs-string">"<span class="hljs-subst">#{item.text}</span>\n"</span> <span class="hljs-keyword">if</span> item.type <span class="hljs-keyword">is</span> <span class="hljs-string">'code'</span></pre></div></div>
-            
-        </li>
-        
-        
-        <li id="section-17">
-            <div class="annotation">
-              
-              <div class="pilwrap ">
-                <a class="pilcrow" href="#section-17">&#182;</a>
-              </div>
-              <p>Put the tabs back in.</p>
-
-            </div>
-            
-            <div class="content"><div class='highlight'><pre>  out.replace token, <span class="hljs-string">"\t"</span>
-  out</pre></div></div>
-            
-        </li>
-        
-        
-        <li id="section-18">
-            <div class="annotation">
-              
-              <div class="pilwrap ">
-                <a class="pilcrow" href="#section-18">&#182;</a>
+                <a class="pilcrow" href="#section-14">&#182;</a>
               </div>
               <p>Merge two jison-style location data objects together.
 If <code>last</code> is not provided, this will simply return <code>first</code>.</p>
@@ -435,16 +382,19 @@ If <code>last</code> is not provided, this will simply return <code>first</code>
     first_line: first.first_line
     first_column: first.first_column
     last_line: last.last_line
-    last_column: last.last_column</pre></div></div>
+    last_column: last.last_column
+<span class="hljs-function">
+<span class="hljs-title">buildLocationHash</span> = <span class="hljs-params">(loc)</span> -&gt;</span>
+  <span class="hljs-string">"<span class="hljs-subst">#{loc.first_line}</span>x<span class="hljs-subst">#{loc.first_column}</span>-<span class="hljs-subst">#{loc.last_line}</span>x<span class="hljs-subst">#{loc.last_column}</span>"</span></pre></div></div>
             
         </li>
         
         
-        <li id="section-19">
+        <li id="section-15">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-19">&#182;</a>
+                <a class="pilcrow" href="#section-15">&#182;</a>
               </div>
               <p>This returns a function which takes an object as a parameter, and if that
 object is an AST node, updates that object’s locationData.
@@ -452,21 +402,67 @@ The object is returned either way.</p>
 
             </div>
             
-            <div class="content"><div class='highlight'><pre>exports.addLocationDataFn = <span class="hljs-function"><span class="hljs-params">(first, last)</span> -&gt;</span>
-  (obj) -&gt;
-    <span class="hljs-keyword">if</span> ((<span class="hljs-keyword">typeof</span> obj) <span class="hljs-keyword">is</span> <span class="hljs-string">'object'</span>) <span class="hljs-keyword">and</span> (!!obj[<span class="hljs-string">'updateLocationDataIfMissing'</span>])
-      obj.updateLocationDataIfMissing buildLocationData(first, last)
-
-    <span class="hljs-keyword">return</span> obj</pre></div></div>
+            <div class="content"><div class='highlight'><pre>exports.addDataToNode = <span class="hljs-function"><span class="hljs-params">(parserState, first, last)</span> -&gt;</span>
+  (obj) -&gt;</pre></div></div>
             
         </li>
         
         
-        <li id="section-20">
+        <li id="section-16">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-20">&#182;</a>
+                <a class="pilcrow" href="#section-16">&#182;</a>
+              </div>
+              <p>Add location data</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>    <span class="hljs-keyword">if</span> obj?.updateLocationDataIfMissing? <span class="hljs-keyword">and</span> first?
+      obj.updateLocationDataIfMissing buildLocationData(first, last)</pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-17">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-17">&#182;</a>
+              </div>
+              <p>Add comments data</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>    <span class="hljs-keyword">unless</span> parserState.tokenComments
+      parserState.tokenComments = {}
+      <span class="hljs-keyword">for</span> token <span class="hljs-keyword">in</span> parserState.parser.tokens <span class="hljs-keyword">when</span> token.comments
+        tokenHash = buildLocationHash token[<span class="hljs-number">2</span>]
+        <span class="hljs-keyword">unless</span> parserState.tokenComments[tokenHash]?
+          parserState.tokenComments[tokenHash] = token.comments
+        <span class="hljs-keyword">else</span>
+          parserState.tokenComments[tokenHash].push token.comments...
+
+    <span class="hljs-keyword">if</span> obj.locationData?
+      objHash = buildLocationHash obj.locationData
+      <span class="hljs-keyword">if</span> parserState.tokenComments[objHash]?
+        attachCommentsToNode parserState.tokenComments[objHash], obj
+
+    obj
+
+exports.attachCommentsToNode = attachCommentsToNode = <span class="hljs-function"><span class="hljs-params">(comments, node)</span> -&gt;</span>
+  <span class="hljs-keyword">return</span> <span class="hljs-keyword">if</span> <span class="hljs-keyword">not</span> comments? <span class="hljs-keyword">or</span> comments.length <span class="hljs-keyword">is</span> <span class="hljs-number">0</span>
+  node.comments ?= []
+  node.comments.push comments...</pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-18">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-18">&#182;</a>
               </div>
               <p>Convert jison location data to a string.
 <code>obj</code> can be a token, or a locationData.</p>
@@ -486,11 +482,11 @@ The object is returned either way.</p>
         </li>
         
         
-        <li id="section-21">
+        <li id="section-19">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-21">&#182;</a>
+                <a class="pilcrow" href="#section-19">&#182;</a>
               </div>
               <p>A <code>.coffee.md</code> compatible version of <code>basename</code>, that returns the file sans-extension.</p>
 
@@ -509,11 +505,11 @@ The object is returned either way.</p>
         </li>
         
         
-        <li id="section-22">
+        <li id="section-20">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-22">&#182;</a>
+                <a class="pilcrow" href="#section-20">&#182;</a>
               </div>
               <p>Determine if a filename represents a CoffeeScript file.</p>
 
@@ -524,11 +520,11 @@ The object is returned either way.</p>
         </li>
         
         
-        <li id="section-23">
+        <li id="section-21">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-23">&#182;</a>
+                <a class="pilcrow" href="#section-21">&#182;</a>
               </div>
               <p>Determine if a filename represents a Literate CoffeeScript file.</p>
 
@@ -539,11 +535,11 @@ The object is returned either way.</p>
         </li>
         
         
-        <li id="section-24">
+        <li id="section-22">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-24">&#182;</a>
+                <a class="pilcrow" href="#section-22">&#182;</a>
               </div>
               <p>Throws a SyntaxError from a given location.
 The error’s <code>toString</code> will return an error message following the “standard”
@@ -560,11 +556,11 @@ marker showing where the error is.</p>
         </li>
         
         
-        <li id="section-25">
+        <li id="section-23">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-25">&#182;</a>
+                <a class="pilcrow" href="#section-23">&#182;</a>
               </div>
               <p>Instead of showing the compiler’s stacktrace, show our custom error message
 (this is useful when the error bubbles up in Node.js applications that
@@ -579,11 +575,11 @@ compile CoffeeScript for example).</p>
         </li>
         
         
-        <li id="section-26">
+        <li id="section-24">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-26">&#182;</a>
+                <a class="pilcrow" href="#section-24">&#182;</a>
               </div>
               <p>Update a compiler SyntaxError with source code information if it didn’t have
 it already.</p>
@@ -595,11 +591,11 @@ it already.</p>
         </li>
         
         
-        <li id="section-27">
+        <li id="section-25">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-27">&#182;</a>
+                <a class="pilcrow" href="#section-25">&#182;</a>
               </div>
               <p>Avoid screwing up the <code>stack</code> property of other errors (i.e. possible bugs).</p>
 
@@ -625,11 +621,11 @@ it already.</p>
         </li>
         
         
-        <li id="section-28">
+        <li id="section-26">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-28">&#182;</a>
+                <a class="pilcrow" href="#section-26">&#182;</a>
               </div>
               <p>Show only the first line on multi-line errors.</p>
 
@@ -641,11 +637,11 @@ it already.</p>
         </li>
         
         
-        <li id="section-29">
+        <li id="section-27">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-29">&#182;</a>
+                <a class="pilcrow" href="#section-27">&#182;</a>
               </div>
               <p>Check to see if we’re running on a color-enabled TTY.</p>
 

docs/v2/annotated-source/index.html

@@ -115,11 +115,322 @@
               <div class="pilwrap ">
                 <a class="pilcrow" href="#section-1">&#182;</a>
               </div>
-              <p>Loader for CoffeeScript as a Node.js library.</p>
+              <p>Node.js Implementation</p>
 
             </div>
             
-            <div class="content"><div class='highlight'><pre>exports[key] = val <span class="hljs-keyword">for</span> key, val <span class="hljs-keyword">of</span> <span class="hljs-built_in">require</span> <span class="hljs-string">'./coffeescript'</span></pre></div></div>
+            <div class="content"><div class='highlight'><pre>CoffeeScript  = <span class="hljs-built_in">require</span> <span class="hljs-string">'./coffeescript'</span>
+fs            = <span class="hljs-built_in">require</span> <span class="hljs-string">'fs'</span>
+vm            = <span class="hljs-built_in">require</span> <span class="hljs-string">'vm'</span>
+path          = <span class="hljs-built_in">require</span> <span class="hljs-string">'path'</span>
+
+helpers       = CoffeeScript.helpers
+
+CoffeeScript.transpile = <span class="hljs-function"><span class="hljs-params">(js, options)</span> -&gt;</span>
+  <span class="hljs-keyword">try</span>
+    babel = <span class="hljs-built_in">require</span> <span class="hljs-string">'babel-core'</span>
+  <span class="hljs-keyword">catch</span></pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-2">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-2">&#182;</a>
+              </div>
+              <p>This error is only for Node, as CLI users will see a different error
+earlier if they don’t have Babel installed.</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>    <span class="hljs-keyword">throw</span> <span class="hljs-keyword">new</span> Error <span class="hljs-string">'To use the transpile option, you must have the \'babel-core\' module installed'</span>
+  babel.transform js, options</pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-3">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-3">&#182;</a>
+              </div>
+              <p>The <code>compile</code> method shared by the CLI, Node and browser APIs.</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>universalCompile = CoffeeScript.compile</pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-4">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-4">&#182;</a>
+              </div>
+              <p>The <code>compile</code> method particular to the Node API.</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>CoffeeScript.compile = <span class="hljs-function"><span class="hljs-params">(code, options)</span> -&gt;</span></pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-5">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-5">&#182;</a>
+              </div>
+              <p>Pass a reference to Babel into the compiler, so that the transpile option
+is available in the Node API. We need to do this so that tools like Webpack
+can <code>require(&#39;coffeescript&#39;)</code> and build correctly, without trying to
+require Babel.</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>  <span class="hljs-keyword">if</span> options?.transpile
+    options.transpile.transpile = CoffeeScript.transpile
+  universalCompile.call CoffeeScript, code, options</pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-6">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-6">&#182;</a>
+              </div>
+              <p>Compile and execute a string of CoffeeScript (on the server), correctly
+setting <code>__filename</code>, <code>__dirname</code>, and relative <code>require()</code>.</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>CoffeeScript.run = <span class="hljs-function"><span class="hljs-params">(code, options = {})</span> -&gt;</span>
+  mainModule = <span class="hljs-built_in">require</span>.main</pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-7">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-7">&#182;</a>
+              </div>
+              <p>Set the filename.</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>  mainModule.filename = process.argv[<span class="hljs-number">1</span>] =
+    <span class="hljs-keyword">if</span> options.filename <span class="hljs-keyword">then</span> fs.realpathSync(options.filename) <span class="hljs-keyword">else</span> <span class="hljs-string">'&lt;anonymous&gt;'</span></pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-8">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-8">&#182;</a>
+              </div>
+              <p>Clear the module cache.</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>  mainModule.moduleCache <span class="hljs-keyword">and</span>= {}</pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-9">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-9">&#182;</a>
+              </div>
+              <p>Assign paths for node_modules loading</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>  dir = <span class="hljs-keyword">if</span> options.filename?
+    path.dirname fs.realpathSync options.filename
+  <span class="hljs-keyword">else</span>
+    fs.realpathSync <span class="hljs-string">'.'</span>
+  mainModule.paths = <span class="hljs-built_in">require</span>(<span class="hljs-string">'module'</span>)._nodeModulePaths dir</pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-10">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-10">&#182;</a>
+              </div>
+              <p>Compile.</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>  <span class="hljs-keyword">if</span> <span class="hljs-keyword">not</span> helpers.isCoffee(mainModule.filename) <span class="hljs-keyword">or</span> <span class="hljs-built_in">require</span>.extensions
+    answer = CoffeeScript.compile code, options
+    code = answer.js ? answer
+
+  mainModule._compile code, mainModule.filename</pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-11">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-11">&#182;</a>
+              </div>
+              <p>Compile and evaluate a string of CoffeeScript (in a Node.js-like environment).
+The CoffeeScript REPL uses this to run the input.</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>CoffeeScript.eval = <span class="hljs-function"><span class="hljs-params">(code, options = {})</span> -&gt;</span>
+  <span class="hljs-keyword">return</span> <span class="hljs-keyword">unless</span> code = code.trim()
+  createContext = vm.Script.createContext ? vm.createContext
+
+  isContext = vm.isContext ? (ctx) -&gt;
+    options.sandbox <span class="hljs-keyword">instanceof</span> createContext().constructor
+
+  <span class="hljs-keyword">if</span> createContext
+    <span class="hljs-keyword">if</span> options.sandbox?
+      <span class="hljs-keyword">if</span> isContext options.sandbox
+        sandbox = options.sandbox
+      <span class="hljs-keyword">else</span>
+        sandbox = createContext()
+        sandbox[k] = v <span class="hljs-keyword">for</span> own k, v <span class="hljs-keyword">of</span> options.sandbox
+      sandbox.<span class="hljs-built_in">global</span> = sandbox.root = sandbox.GLOBAL = sandbox
+    <span class="hljs-keyword">else</span>
+      sandbox = <span class="hljs-built_in">global</span>
+    sandbox.__filename = options.filename || <span class="hljs-string">'eval'</span>
+    sandbox.__dirname  = path.dirname sandbox.__filename</pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-12">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-12">&#182;</a>
+              </div>
+              <p>define module/require only if they chose not to specify their own</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>    <span class="hljs-keyword">unless</span> sandbox <span class="hljs-keyword">isnt</span> <span class="hljs-built_in">global</span> <span class="hljs-keyword">or</span> sandbox.<span class="hljs-built_in">module</span> <span class="hljs-keyword">or</span> sandbox.<span class="hljs-built_in">require</span>
+      Module = <span class="hljs-built_in">require</span> <span class="hljs-string">'module'</span>
+      sandbox.<span class="hljs-built_in">module</span>  = _module  = <span class="hljs-keyword">new</span> Module(options.modulename || <span class="hljs-string">'eval'</span>)
+      sandbox.<span class="hljs-built_in">require</span> = _require = <span class="hljs-function"><span class="hljs-params">(path)</span> -&gt;</span>  Module._load path, _module, <span class="hljs-literal">true</span>
+      _module.filename = sandbox.__filename
+      <span class="hljs-keyword">for</span> r <span class="hljs-keyword">in</span> Object.getOwnPropertyNames <span class="hljs-built_in">require</span> <span class="hljs-keyword">when</span> r <span class="hljs-keyword">not</span> <span class="hljs-keyword">in</span> [<span class="hljs-string">'paths'</span>, <span class="hljs-string">'arguments'</span>, <span class="hljs-string">'caller'</span>]
+        _require[r] = <span class="hljs-built_in">require</span>[r]</pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-13">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-13">&#182;</a>
+              </div>
+              <p>use the same hack node currently uses for their own REPL</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>      _require.paths = _module.paths = Module._nodeModulePaths process.cwd()
+      _require.resolve = <span class="hljs-function"><span class="hljs-params">(request)</span> -&gt;</span> Module._resolveFilename request, _module
+  o = {}
+  o[k] = v <span class="hljs-keyword">for</span> own k, v <span class="hljs-keyword">of</span> options
+  o.bare = <span class="hljs-literal">on</span> <span class="hljs-comment"># ensure return value</span>
+  js = CoffeeScript.compile code, o
+  <span class="hljs-keyword">if</span> sandbox <span class="hljs-keyword">is</span> <span class="hljs-built_in">global</span>
+    vm.runInThisContext js
+  <span class="hljs-keyword">else</span>
+    vm.runInContext js, sandbox
+
+CoffeeScript.register = <span class="hljs-function">-&gt;</span> <span class="hljs-built_in">require</span> <span class="hljs-string">'./register'</span></pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-14">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-14">&#182;</a>
+              </div>
+              <p>Throw error with deprecation warning when depending upon implicit <code>require.extensions</code> registration</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre><span class="hljs-keyword">if</span> <span class="hljs-built_in">require</span>.extensions
+  <span class="hljs-keyword">for</span> ext <span class="hljs-keyword">in</span> CoffeeScript.FILE_EXTENSIONS <span class="hljs-keyword">then</span> <span class="hljs-keyword">do</span> (ext) -&gt;
+    <span class="hljs-built_in">require</span>.extensions[ext] ?= <span class="hljs-function">-&gt;</span>
+      <span class="hljs-keyword">throw</span> <span class="hljs-keyword">new</span> Error <span class="hljs-string">"""
+      Use CoffeeScript.register() or require the coffeescript/register module to require <span class="hljs-subst">#{ext}</span> files.
+      """</span>
+
+CoffeeScript._compileFile = <span class="hljs-function"><span class="hljs-params">(filename, sourceMap = <span class="hljs-literal">no</span>, inlineMap = <span class="hljs-literal">no</span>)</span> -&gt;</span>
+  raw = fs.readFileSync filename, <span class="hljs-string">'utf8'</span></pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-15">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-15">&#182;</a>
+              </div>
+              <p>Strip the Unicode byte order mark, if this file begins with one.</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>  stripped = <span class="hljs-keyword">if</span> raw.charCodeAt(<span class="hljs-number">0</span>) <span class="hljs-keyword">is</span> <span class="hljs-number">0xFEFF</span> <span class="hljs-keyword">then</span> raw.substring <span class="hljs-number">1</span> <span class="hljs-keyword">else</span> raw
+
+  <span class="hljs-keyword">try</span>
+    answer = CoffeeScript.compile stripped, {
+      filename, sourceMap, inlineMap
+      sourceFiles: [filename]
+      literate: helpers.isLiterate filename
+    }
+  <span class="hljs-keyword">catch</span> err</pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-16">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-16">&#182;</a>
+              </div>
+              <p>As the filename and code of a dynamically loaded file will be different
+from the original file compiled with CoffeeScript.run, add that
+information to error so it can be pretty-printed later.</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>    <span class="hljs-keyword">throw</span> helpers.updateSyntaxError err, stripped, filename
+
+  answer
+
+<span class="hljs-built_in">module</span>.exports = CoffeeScript</pre></div></div>
             
         </li>
         

docs/v2/annotated-source/optparse.html

@@ -135,6 +135,8 @@ Use it like so:</p>
 options = parser.parse process.argv
 </code></pre><p>The first non-option is considered to be the start of the file (and file
 option) list, and all subsequent arguments are left unparsed.</p>
+<p>The <code>coffee</code> command uses an instance of <strong>OptionParser</strong> to parse its
+command-line arguments in <code>src/command.coffee</code>.</p>
 
             </div>
             
@@ -155,8 +157,8 @@ option) list, and all subsequent arguments are left unparsed.</p>
 
             </div>
             
-            <div class="content"><div class='highlight'><pre>  constructor: <span class="hljs-function"><span class="hljs-params">(rules, @banner)</span> -&gt;</span>
-    @rules = buildRules rules</pre></div></div>
+            <div class="content"><div class='highlight'><pre>  constructor: <span class="hljs-function"><span class="hljs-params">(ruleDeclarations, @banner)</span> -&gt;</span>
+    @rules = buildRules ruleDeclarations</pre></div></div>
             
         </li>
         
@@ -176,20 +178,7 @@ you’re responsible for interpreting the options object.</p>
 
             </div>
             
-            <div class="content"><div class='highlight'><pre>  parse: <span class="hljs-function"><span class="hljs-params">(args)</span> -&gt;</span>
-    options = arguments: []
-    skippingArgument = <span class="hljs-literal">no</span>
-    originalArgs = args
-    args = normalizeArguments args
-    <span class="hljs-keyword">for</span> arg, i <span class="hljs-keyword">in</span> args
-      <span class="hljs-keyword">if</span> skippingArgument
-        skippingArgument = <span class="hljs-literal">no</span>
-        <span class="hljs-keyword">continue</span>
-      <span class="hljs-keyword">if</span> arg <span class="hljs-keyword">is</span> <span class="hljs-string">'--'</span>
-        pos = originalArgs.indexOf <span class="hljs-string">'--'</span>
-        options.arguments = options.arguments.concat originalArgs[(pos + <span class="hljs-number">1</span>)..]
-        <span class="hljs-keyword">break</span>
-      isOption = !!(arg.match(LONG_FLAG) <span class="hljs-keyword">or</span> arg.match(SHORT_FLAG))</pre></div></div>
+            <div class="content"><div class='highlight'><pre>  parse: <span class="hljs-function"><span class="hljs-params">(args)</span> -&gt;</span></pre></div></div>
             
         </li>
         
@@ -200,27 +189,18 @@ you’re responsible for interpreting the options object.</p>
               <div class="pilwrap ">
                 <a class="pilcrow" href="#section-5">&#182;</a>
               </div>
-              <p>the CS option parser is a little odd; options after the first
-non-option argument are treated as non-option arguments themselves</p>
+              <p>The CoffeeScript option parser is a little odd; options after the first
+non-option argument are treated as non-option arguments themselves.
+Optional arguments are normalized by expanding merged flags into multiple
+flags. This allows you to have <code>-wl</code> be the same as <code>--watch --lint</code>.
+Note that executable scripts with a shebang (<code>#!</code>) line should use the
+line <code>#!/usr/bin/env coffee</code>, or <code>#!/absolute/path/to/coffee</code>, without a
+<code>--</code> argument after, because that will fail on Linux (see #3946).</p>
 
             </div>
             
-            <div class="content"><div class='highlight'><pre>      seenNonOptionArg = options.arguments.length &gt; <span class="hljs-number">0</span>
-      <span class="hljs-keyword">unless</span> seenNonOptionArg
-        matchedRule = <span class="hljs-literal">no</span>
-        <span class="hljs-keyword">for</span> rule <span class="hljs-keyword">in</span> @rules
-          <span class="hljs-keyword">if</span> rule.shortFlag <span class="hljs-keyword">is</span> arg <span class="hljs-keyword">or</span> rule.longFlag <span class="hljs-keyword">is</span> arg
-            value = <span class="hljs-literal">true</span>
-            <span class="hljs-keyword">if</span> rule.hasArgument
-              skippingArgument = <span class="hljs-literal">yes</span>
-              value = args[i + <span class="hljs-number">1</span>]
-            options[rule.name] = <span class="hljs-keyword">if</span> rule.isList <span class="hljs-keyword">then</span> (options[rule.name] <span class="hljs-keyword">or</span> []).concat value <span class="hljs-keyword">else</span> value
-            matchedRule = <span class="hljs-literal">yes</span>
-            <span class="hljs-keyword">break</span>
-        <span class="hljs-keyword">throw</span> <span class="hljs-keyword">new</span> Error <span class="hljs-string">"unrecognized option: <span class="hljs-subst">#{arg}</span>"</span> <span class="hljs-keyword">if</span> isOption <span class="hljs-keyword">and</span> <span class="hljs-keyword">not</span> matchedRule
-      <span class="hljs-keyword">if</span> seenNonOptionArg <span class="hljs-keyword">or</span> <span class="hljs-keyword">not</span> isOption
-        options.arguments.push arg
-    options</pre></div></div>
+            <div class="content"><div class='highlight'><pre>    {rules, positional} = normalizeArguments args, @rules.flagDict
+    options = {}</pre></div></div>
             
         </li>
         
@@ -231,20 +211,27 @@ non-option argument are treated as non-option arguments themselves</p>
               <div class="pilwrap ">
                 <a class="pilcrow" href="#section-6">&#182;</a>
               </div>
-              <p>Return the help text for this <strong>OptionParser</strong>, listing and describing all
-of the valid options, for <code>--help</code> and such.</p>
+              <p>The <code>argument</code> field is added to the rule instance non-destructively by
+<code>normalizeArguments</code>.</p>
 
             </div>
             
-            <div class="content"><div class='highlight'><pre>  help: <span class="hljs-function">-&gt;</span>
-    lines = []
-    lines.unshift <span class="hljs-string">"<span class="hljs-subst">#{@banner}</span>\n"</span> <span class="hljs-keyword">if</span> @banner
-    <span class="hljs-keyword">for</span> rule <span class="hljs-keyword">in</span> @rules
-      spaces  = <span class="hljs-number">15</span> - rule.longFlag.length
-      spaces  = <span class="hljs-keyword">if</span> spaces &gt; <span class="hljs-number">0</span> <span class="hljs-keyword">then</span> repeat <span class="hljs-string">' '</span>, spaces <span class="hljs-keyword">else</span> <span class="hljs-string">''</span>
-      letPart = <span class="hljs-keyword">if</span> rule.shortFlag <span class="hljs-keyword">then</span> rule.shortFlag + <span class="hljs-string">', '</span> <span class="hljs-keyword">else</span> <span class="hljs-string">'    '</span>
-      lines.push <span class="hljs-string">'  '</span> + letPart + rule.longFlag + spaces + rule.description
-    <span class="hljs-string">"\n<span class="hljs-subst">#{ lines.join(<span class="hljs-string">'\n'</span>) }</span>\n"</span></pre></div></div>
+            <div class="content"><div class='highlight'><pre>    <span class="hljs-keyword">for</span> {hasArgument, argument, isList, name} <span class="hljs-keyword">in</span> rules
+      <span class="hljs-keyword">if</span> hasArgument
+        <span class="hljs-keyword">if</span> isList
+          options[name] ?= []
+          options[name].push argument
+        <span class="hljs-keyword">else</span>
+          options[name] = argument
+      <span class="hljs-keyword">else</span>
+        options[name] = <span class="hljs-literal">true</span>
+
+    <span class="hljs-keyword">if</span> positional[<span class="hljs-number">0</span>] <span class="hljs-keyword">is</span> <span class="hljs-string">'--'</span>
+      options.doubleDashed = <span class="hljs-literal">yes</span>
+      positional = positional[<span class="hljs-number">1.</span>.]
+
+    options.arguments = positional
+    options</pre></div></div>
             
         </li>
         
@@ -255,10 +242,21 @@ of the valid options, for <code>--help</code> and such.</p>
               <div class="pilwrap ">
                 <a class="pilcrow" href="#section-7">&#182;</a>
               </div>
-              <h2 id="helpers">Helpers</h2>
+              <p>Return the help text for this <strong>OptionParser</strong>, listing and describing all
+of the valid options, for <code>--help</code> and such.</p>
 
             </div>
             
+            <div class="content"><div class='highlight'><pre>  help: <span class="hljs-function">-&gt;</span>
+    lines = []
+    lines.unshift <span class="hljs-string">"<span class="hljs-subst">#{@banner}</span>\n"</span> <span class="hljs-keyword">if</span> @banner
+    <span class="hljs-keyword">for</span> rule <span class="hljs-keyword">in</span> @rules.ruleList
+      spaces  = <span class="hljs-number">15</span> - rule.longFlag.length
+      spaces  = <span class="hljs-keyword">if</span> spaces &gt; <span class="hljs-number">0</span> <span class="hljs-keyword">then</span> repeat <span class="hljs-string">' '</span>, spaces <span class="hljs-keyword">else</span> <span class="hljs-string">''</span>
+      letPart = <span class="hljs-keyword">if</span> rule.shortFlag <span class="hljs-keyword">then</span> rule.shortFlag + <span class="hljs-string">', '</span> <span class="hljs-keyword">else</span> <span class="hljs-string">'    '</span>
+      lines.push <span class="hljs-string">'  '</span> + letPart + rule.longFlag + spaces + rule.description
+    <span class="hljs-string">"\n<span class="hljs-subst">#{ lines.join(<span class="hljs-string">'\n'</span>) }</span>\n"</span></pre></div></div>
+            
         </li>
         
         
@@ -268,7 +266,8 @@ of the valid options, for <code>--help</code> and such.</p>
               <div class="pilwrap ">
                 <a class="pilcrow" href="#section-8">&#182;</a>
               </div>
-              
+              <h2 id="helpers">Helpers</h2>
+
             </div>
             
         </li>
@@ -280,15 +279,9 @@ of the valid options, for <code>--help</code> and such.</p>
               <div class="pilwrap ">
                 <a class="pilcrow" href="#section-9">&#182;</a>
               </div>
-              <p>Regex matchers for option flags.</p>
-
+              
             </div>
             
-            <div class="content"><div class='highlight'><pre>LONG_FLAG  = <span class="hljs-regexp">/^(--\w[\w\-]*)/</span>
-SHORT_FLAG = <span class="hljs-regexp">/^(-\w)$/</span>
-MULTI_FLAG = <span class="hljs-regexp">/^-(\w{2,})/</span>
-OPTIONAL   = <span class="hljs-regexp">/\[(\w+(\*?))\]/</span></pre></div></div>
-            
         </li>
         
         
@@ -298,15 +291,13 @@ OPTIONAL   = <span class="hljs-regexp">/\[(\w+(\*?))\]/</span></pre></div></div>
               <div class="pilwrap ">
                 <a class="pilcrow" href="#section-10">&#182;</a>
               </div>
-              <p>Build and return the list of option rules. If the optional <em>short-flag</em> is
-unspecified, leave it out by padding with <code>null</code>.</p>
+              <p>Regex matchers for option flags on the command line and their rules.</p>
 
             </div>
             
-            <div class="content"><div class='highlight'><pre><span class="hljs-function"><span class="hljs-title">buildRules</span> = <span class="hljs-params">(rules)</span> -&gt;</span>
-  <span class="hljs-keyword">for</span> tuple <span class="hljs-keyword">in</span> rules
-    tuple.unshift <span class="hljs-literal">null</span> <span class="hljs-keyword">if</span> tuple.length &lt; <span class="hljs-number">3</span>
-    buildRule tuple...</pre></div></div>
+            <div class="content"><div class='highlight'><pre>LONG_FLAG  = <span class="hljs-regexp">/^(--\w[\w\-]*)/</span>
+SHORT_FLAG = <span class="hljs-regexp">/^(-\w)$/</span>
+MULTI_FLAG = <span class="hljs-regexp">/^-(\w{2,})/</span></pre></div></div>
             
         </li>
         
@@ -317,22 +308,12 @@ unspecified, leave it out by padding with <code>null</code>.</p>
               <div class="pilwrap ">
                 <a class="pilcrow" href="#section-11">&#182;</a>
               </div>
-              <p>Build a rule from a <code>-o</code> short flag, a <code>--output [DIR]</code> long flag, and the
-description of what the option does.</p>
+              <p>Matches the long flag part of a rule for an option with an argument. Not
+applied to anything in process.argv.</p>
 
             </div>
             
-            <div class="content"><div class='highlight'><pre><span class="hljs-function"><span class="hljs-title">buildRule</span> = <span class="hljs-params">(shortFlag, longFlag, description, options = {})</span> -&gt;</span>
-  match     = longFlag.match(OPTIONAL)
-  longFlag  = longFlag.match(LONG_FLAG)[<span class="hljs-number">1</span>]
-  {
-    name:         longFlag.substr <span class="hljs-number">2</span>
-    shortFlag:    shortFlag
-    longFlag:     longFlag
-    description:  description
-    hasArgument:  !!(match <span class="hljs-keyword">and</span> match[<span class="hljs-number">1</span>])
-    isList:       !!(match <span class="hljs-keyword">and</span> match[<span class="hljs-number">2</span>])
-  }</pre></div></div>
+            <div class="content"><div class='highlight'><pre>OPTIONAL   = <span class="hljs-regexp">/\[(\w+(\*?))\]/</span></pre></div></div>
             
         </li>
         
@@ -343,20 +324,156 @@ description of what the option does.</p>
               <div class="pilwrap ">
                 <a class="pilcrow" href="#section-12">&#182;</a>
               </div>
-              <p>Normalize arguments by expanding merged flags into multiple flags. This allows
-you to have <code>-wl</code> be the same as <code>--watch --lint</code>.</p>
+              <p>Build and return the list of option rules. If the optional <em>short-flag</em> is
+unspecified, leave it out by padding with <code>null</code>.</p>
 
             </div>
             
-            <div class="content"><div class='highlight'><pre><span class="hljs-function"><span class="hljs-title">normalizeArguments</span> = <span class="hljs-params">(args)</span> -&gt;</span>
-  args = args[..]
-  result = []
-  <span class="hljs-keyword">for</span> arg <span class="hljs-keyword">in</span> args
-    <span class="hljs-keyword">if</span> match = arg.match MULTI_FLAG
-      result.push <span class="hljs-string">'-'</span> + l <span class="hljs-keyword">for</span> l <span class="hljs-keyword">in</span> match[<span class="hljs-number">1</span>].split <span class="hljs-string">''</span>
-    <span class="hljs-keyword">else</span>
-      result.push arg
-  result</pre></div></div>
+            <div class="content"><div class='highlight'><pre><span class="hljs-function"><span class="hljs-title">buildRules</span> = <span class="hljs-params">(ruleDeclarations)</span> -&gt;</span>
+  ruleList = <span class="hljs-keyword">for</span> tuple <span class="hljs-keyword">in</span> ruleDeclarations
+    tuple.unshift <span class="hljs-literal">null</span> <span class="hljs-keyword">if</span> tuple.length &lt; <span class="hljs-number">3</span>
+    buildRule tuple...
+  flagDict = {}
+  <span class="hljs-keyword">for</span> rule <span class="hljs-keyword">in</span> ruleList</pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-13">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-13">&#182;</a>
+              </div>
+              <p><code>shortFlag</code> is null if not provided in the rule.</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>    <span class="hljs-keyword">for</span> flag <span class="hljs-keyword">in</span> [rule.shortFlag, rule.longFlag] <span class="hljs-keyword">when</span> flag?
+      <span class="hljs-keyword">if</span> flagDict[flag]?
+        <span class="hljs-keyword">throw</span> <span class="hljs-keyword">new</span> Error <span class="hljs-string">"flag <span class="hljs-subst">#{flag}</span> for switch <span class="hljs-subst">#{rule.name}</span>
+          was already declared for switch <span class="hljs-subst">#{flagDict[flag].name}</span>"</span>
+      flagDict[flag] = rule
+
+  {ruleList, flagDict}</pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-14">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-14">&#182;</a>
+              </div>
+              <p>Build a rule from a <code>-o</code> short flag, a <code>--output [DIR]</code> long flag, and the
+description of what the option does.</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre><span class="hljs-function"><span class="hljs-title">buildRule</span> = <span class="hljs-params">(shortFlag, longFlag, description)</span> -&gt;</span>
+  match     = longFlag.match(OPTIONAL)
+  shortFlag = shortFlag?.match(SHORT_FLAG)[<span class="hljs-number">1</span>]
+  longFlag  = longFlag.match(LONG_FLAG)[<span class="hljs-number">1</span>]
+  {
+    name:         longFlag.replace <span class="hljs-regexp">/^--/</span>, <span class="hljs-string">''</span>
+    shortFlag:    shortFlag
+    longFlag:     longFlag
+    description:  description
+    hasArgument:  !!(match <span class="hljs-keyword">and</span> match[<span class="hljs-number">1</span>])
+    isList:       !!(match <span class="hljs-keyword">and</span> match[<span class="hljs-number">2</span>])
+  }
+<span class="hljs-function">
+<span class="hljs-title">normalizeArguments</span> = <span class="hljs-params">(args, flagDict)</span> -&gt;</span>
+  rules = []
+  positional = []
+  needsArgOpt = <span class="hljs-literal">null</span>
+  <span class="hljs-keyword">for</span> arg, argIndex <span class="hljs-keyword">in</span> args</pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-15">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-15">&#182;</a>
+              </div>
+              <p>If the previous argument given to the script was an option that uses the
+next command-line argument as its argument, create copy of the option’s
+rule with an <code>argument</code> field.</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>    <span class="hljs-keyword">if</span> needsArgOpt?
+      withArg = Object.assign {}, needsArgOpt.rule, {argument: arg}
+      rules.push withArg
+      needsArgOpt = <span class="hljs-literal">null</span>
+      <span class="hljs-keyword">continue</span>
+
+    multiFlags = arg.match(MULTI_FLAG)?[<span class="hljs-number">1</span>]
+      .split(<span class="hljs-string">''</span>)
+      .map (flagName) -&gt; <span class="hljs-string">"-<span class="hljs-subst">#{flagName}</span>"</span>
+    <span class="hljs-keyword">if</span> multiFlags?
+      multiOpts = multiFlags.map (flag) -&gt;
+        rule = flagDict[flag]
+        <span class="hljs-keyword">unless</span> rule?
+          <span class="hljs-keyword">throw</span> <span class="hljs-keyword">new</span> Error <span class="hljs-string">"unrecognized option <span class="hljs-subst">#{flag}</span> in multi-flag <span class="hljs-subst">#{arg}</span>"</span>
+        {rule, flag}</pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-16">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-16">&#182;</a>
+              </div>
+              <p>Only the last flag in a multi-flag may have an argument.</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>      [innerOpts..., lastOpt] = multiOpts
+      <span class="hljs-keyword">for</span> {rule, flag} <span class="hljs-keyword">in</span> innerOpts
+        <span class="hljs-keyword">if</span> rule.hasArgument
+          <span class="hljs-keyword">throw</span> <span class="hljs-keyword">new</span> Error <span class="hljs-string">"cannot use option <span class="hljs-subst">#{flag}</span> in multi-flag <span class="hljs-subst">#{arg}</span> except
+          as the last option, because it needs an argument"</span>
+        rules.push rule
+      <span class="hljs-keyword">if</span> lastOpt.rule.hasArgument
+        needsArgOpt = lastOpt
+      <span class="hljs-keyword">else</span>
+        rules.push lastOpt.rule
+    <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span> ([LONG_FLAG, SHORT_FLAG].some (pat) -&gt; arg.match(pat)?)
+      singleRule = flagDict[arg]
+      <span class="hljs-keyword">unless</span> singleRule?
+        <span class="hljs-keyword">throw</span> <span class="hljs-keyword">new</span> Error <span class="hljs-string">"unrecognized option <span class="hljs-subst">#{arg}</span>"</span>
+      <span class="hljs-keyword">if</span> singleRule.hasArgument
+        needsArgOpt = {rule: singleRule, flag: arg}
+      <span class="hljs-keyword">else</span>
+        rules.push singleRule
+    <span class="hljs-keyword">else</span></pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-17">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-17">&#182;</a>
+              </div>
+              <p>This is a positional argument.</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>      positional = args[argIndex..]
+      <span class="hljs-keyword">break</span>
+
+  <span class="hljs-keyword">if</span> needsArgOpt?
+    <span class="hljs-keyword">throw</span> <span class="hljs-keyword">new</span> Error <span class="hljs-string">"value required for <span class="hljs-subst">#{needsArgOpt.flag}</span>, but it was the last
+    argument provided"</span>
+  {rules, positional}</pre></div></div>
             
         </li>
         

docs/v2/annotated-source/register.html

@@ -118,7 +118,7 @@
               
             </div>
             
-            <div class="content"><div class='highlight'><pre>CoffeeScript  = <span class="hljs-built_in">require</span> <span class="hljs-string">'./coffeescript'</span>
+            <div class="content"><div class='highlight'><pre>CoffeeScript  = <span class="hljs-built_in">require</span> <span class="hljs-string">'./'</span>
 child_process = <span class="hljs-built_in">require</span> <span class="hljs-string">'child_process'</span>
 helpers       = <span class="hljs-built_in">require</span> <span class="hljs-string">'./helpers'</span>
 path          = <span class="hljs-built_in">require</span> <span class="hljs-string">'path'</span></pre></div></div>

docs/v2/annotated-source/repl.html

@@ -122,12 +122,16 @@
 path = <span class="hljs-built_in">require</span> <span class="hljs-string">'path'</span>
 vm = <span class="hljs-built_in">require</span> <span class="hljs-string">'vm'</span>
 nodeREPL = <span class="hljs-built_in">require</span> <span class="hljs-string">'repl'</span>
-CoffeeScript = <span class="hljs-built_in">require</span> <span class="hljs-string">'./coffeescript'</span>
+CoffeeScript = <span class="hljs-built_in">require</span> <span class="hljs-string">'./'</span>
 {merge, updateSyntaxError} = <span class="hljs-built_in">require</span> <span class="hljs-string">'./helpers'</span>
 
+sawSIGINT = <span class="hljs-literal">no</span>
+
 replDefaults =
   prompt: <span class="hljs-string">'coffee&gt; '</span>,
-  historyFile: path.join process.env.HOME, <span class="hljs-string">'.coffee_history'</span> <span class="hljs-keyword">if</span> process.env.HOME
+  historyFile: <span class="hljs-keyword">do</span> -&gt;
+    historyPath = process.env.XDG_CACHE_HOME <span class="hljs-keyword">or</span> process.env.HOME
+    path.join historyPath, <span class="hljs-string">'.coffee_history'</span> <span class="hljs-keyword">if</span> historyPath
   historyMaxInputSize: <span class="hljs-number">10240</span>
   eval: <span class="hljs-function"><span class="hljs-params">(input, context, filename, cb)</span> -&gt;</span></pre></div></div>
             
@@ -191,7 +195,7 @@ Unwrap that too.</p>
 
             </div>
             
-            <div class="content"><div class='highlight'><pre>    {Block, Assign, Value, Literal} = <span class="hljs-built_in">require</span> <span class="hljs-string">'./nodes'</span>
+            <div class="content"><div class='highlight'><pre>    {Block, Assign, Value, Literal, Call, Code} = <span class="hljs-built_in">require</span> <span class="hljs-string">'./nodes'</span>
 
     <span class="hljs-keyword">try</span></pre></div></div>
             
@@ -223,9 +227,7 @@ Unwrap that too.</p>
 
             </div>
             
-            <div class="content"><div class='highlight'><pre>      referencedVars = (
-        token[<span class="hljs-number">1</span>] <span class="hljs-keyword">for</span> token <span class="hljs-keyword">in</span> tokens <span class="hljs-keyword">when</span> token[<span class="hljs-number">0</span>] <span class="hljs-keyword">is</span> <span class="hljs-string">'IDENTIFIER'</span>
-      )</pre></div></div>
+            <div class="content"><div class='highlight'><pre>      referencedVars = (token[<span class="hljs-number">1</span>] <span class="hljs-keyword">for</span> token <span class="hljs-keyword">in</span> tokens <span class="hljs-keyword">when</span> token[<span class="hljs-number">0</span>] <span class="hljs-keyword">is</span> <span class="hljs-string">'IDENTIFIER'</span>)</pre></div></div>
             
         </li>
         
@@ -251,16 +253,11 @@ Unwrap that too.</p>
               <div class="pilwrap ">
                 <a class="pilcrow" href="#section-9">&#182;</a>
               </div>
-              <p>Add assignment to <code>_</code> variable to force the input to be an expression.</p>
+              <p>Add assignment to <code>__</code> variable to force the input to be an expression.</p>
 
             </div>
             
-            <div class="content"><div class='highlight'><pre>      ast = <span class="hljs-keyword">new</span> Block [
-        <span class="hljs-keyword">new</span> Assign (<span class="hljs-keyword">new</span> Value <span class="hljs-keyword">new</span> Literal <span class="hljs-string">'_'</span>), ast, <span class="hljs-string">'='</span>
-      ]
-      js = ast.compile {bare: <span class="hljs-literal">yes</span>, locals: Object.keys(context), referencedVars}
-      cb <span class="hljs-literal">null</span>, runInContext js, context, filename
-    <span class="hljs-keyword">catch</span> err</pre></div></div>
+            <div class="content"><div class='highlight'><pre>      ast = <span class="hljs-keyword">new</span> Block [<span class="hljs-keyword">new</span> Assign (<span class="hljs-keyword">new</span> Value <span class="hljs-keyword">new</span> Literal <span class="hljs-string">'__'</span>), ast, <span class="hljs-string">'='</span>]</pre></div></div>
             
         </li>
         
@@ -271,6 +268,60 @@ Unwrap that too.</p>
               <div class="pilwrap ">
                 <a class="pilcrow" href="#section-10">&#182;</a>
               </div>
+              <p>Wrap the expression in a closure to support top-level <code>await</code></p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>      ast     = <span class="hljs-keyword">new</span> Code [], ast
+      isAsync = ast.isAsync</pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-11">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-11">&#182;</a>
+              </div>
+              <p>Invoke the wrapping closure</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>      ast    = <span class="hljs-keyword">new</span> Block [<span class="hljs-keyword">new</span> Call ast]
+      js     = ast.compile {bare: <span class="hljs-literal">yes</span>, locals: Object.keys(context), referencedVars, sharedScope: <span class="hljs-literal">yes</span>}
+      result = runInContext js, context, filename</pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-12">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-12">&#182;</a>
+              </div>
+              <p>Await an async result, if necessary</p>
+
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>      <span class="hljs-keyword">if</span> isAsync
+        result.<span class="hljs-keyword">then</span> (resolvedResult) -&gt;
+          cb <span class="hljs-literal">null</span>, resolvedResult <span class="hljs-keyword">unless</span> sawSIGINT
+        sawSIGINT = <span class="hljs-literal">no</span>
+      <span class="hljs-keyword">else</span>
+        cb <span class="hljs-literal">null</span>, result
+    <span class="hljs-keyword">catch</span> err</pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-13">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-13">&#182;</a>
+              </div>
               <p>AST’s <code>compile</code> does not add source code information to syntax errors.</p>
 
             </div>
@@ -290,11 +341,11 @@ Unwrap that too.</p>
         </li>
         
         
-        <li id="section-11">
+        <li id="section-14">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-11">&#182;</a>
+                <a class="pilcrow" href="#section-14">&#182;</a>
               </div>
               <p>Node 0.11.12 changed API, prompt is now _prompt.</p>
 
@@ -311,11 +362,11 @@ Unwrap that too.</p>
         </li>
         
         
-        <li id="section-12">
+        <li id="section-15">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-12">&#182;</a>
+                <a class="pilcrow" href="#section-15">&#182;</a>
               </div>
               <p>Proxy node’s line listener</p>
 
@@ -336,11 +387,11 @@ Unwrap that too.</p>
         </li>
         
         
-        <li id="section-13">
+        <li id="section-16">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-13">&#182;</a>
+                <a class="pilcrow" href="#section-16">&#182;</a>
               </div>
               <p>Handle Ctrl-v</p>
 
@@ -353,11 +404,11 @@ Unwrap that too.</p>
         </li>
         
         
-        <li id="section-14">
+        <li id="section-17">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-14">&#182;</a>
+                <a class="pilcrow" href="#section-17">&#182;</a>
               </div>
               <p>allow arbitrarily switching between modes any time before multiple lines are entered</p>
 
@@ -372,11 +423,11 @@ Unwrap that too.</p>
         </li>
         
         
-        <li id="section-15">
+        <li id="section-18">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-15">&#182;</a>
+                <a class="pilcrow" href="#section-18">&#182;</a>
               </div>
               <p>no-op unless the current line is empty</p>
 
@@ -387,11 +438,11 @@ Unwrap that too.</p>
         </li>
         
         
-        <li id="section-16">
+        <li id="section-19">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-16">&#182;</a>
+                <a class="pilcrow" href="#section-19">&#182;</a>
               </div>
               <p>eval, print, loop</p>
 
@@ -406,11 +457,11 @@ Unwrap that too.</p>
         </li>
         
         
-        <li id="section-17">
+        <li id="section-20">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-17">&#182;</a>
+                <a class="pilcrow" href="#section-20">&#182;</a>
               </div>
               <p>XXX: multiline hack</p>
 
@@ -428,11 +479,11 @@ Unwrap that too.</p>
         </li>
         
         
-        <li id="section-18">
+        <li id="section-21">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-18">&#182;</a>
+                <a class="pilcrow" href="#section-21">&#182;</a>
               </div>
               <p>Store and load command history from a file</p>
 
@@ -445,11 +496,11 @@ Unwrap that too.</p>
         </li>
         
         
-        <li id="section-19">
+        <li id="section-22">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-19">&#182;</a>
+                <a class="pilcrow" href="#section-22">&#182;</a>
               </div>
               <p>Get file info and at most maxSize of command history</p>
 
@@ -461,11 +512,11 @@ Unwrap that too.</p>
         </li>
         
         
-        <li id="section-20">
+        <li id="section-23">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-20">&#182;</a>
+                <a class="pilcrow" href="#section-23">&#182;</a>
               </div>
               <p>Read last <code>size</code> bytes from the file</p>
 
@@ -479,11 +530,11 @@ Unwrap that too.</p>
         </li>
         
         
-        <li id="section-21">
+        <li id="section-24">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-21">&#182;</a>
+                <a class="pilcrow" href="#section-24">&#182;</a>
               </div>
               <p>Set the history on the interpreter</p>
 
@@ -494,11 +545,11 @@ Unwrap that too.</p>
         </li>
         
         
-        <li id="section-22">
+        <li id="section-25">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-22">&#182;</a>
+                <a class="pilcrow" href="#section-25">&#182;</a>
               </div>
               <p>If the history file was truncated we should pop off a potential partial line</p>
 
@@ -509,11 +560,11 @@ Unwrap that too.</p>
         </li>
         
         
-        <li id="section-23">
+        <li id="section-26">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-23">&#182;</a>
+                <a class="pilcrow" href="#section-26">&#182;</a>
               </div>
               <p>Shift off the final blank newline</p>
 
@@ -531,29 +582,43 @@ Unwrap that too.</p>
         </li>
         
         
-        <li id="section-24">
+        <li id="section-27">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-24">&#182;</a>
+                <a class="pilcrow" href="#section-27">&#182;</a>
               </div>
               <p>Save the latest command in the file</p>
 
             </div>
             
             <div class="content"><div class='highlight'><pre>      fs.writeSync fd, <span class="hljs-string">"<span class="hljs-subst">#{code}</span>\n"</span>
-      lastLine = code
+      lastLine = code</pre></div></div>
+            
+        </li>
+        
+        
+        <li id="section-28">
+            <div class="annotation">
+              
+              <div class="pilwrap ">
+                <a class="pilcrow" href="#section-28">&#182;</a>
+              </div>
+              <p>XXX: The SIGINT event from REPLServer is undocumented, so this is a bit fragile</p>
 
+            </div>
+            
+            <div class="content"><div class='highlight'><pre>  repl.<span class="hljs-literal">on</span> <span class="hljs-string">'SIGINT'</span>, <span class="hljs-function">-&gt;</span> sawSIGINT = <span class="hljs-literal">yes</span>
   repl.<span class="hljs-literal">on</span> <span class="hljs-string">'exit'</span>, <span class="hljs-function">-&gt;</span> fs.closeSync fd</pre></div></div>
             
         </li>
         
         
-        <li id="section-25">
+        <li id="section-29">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-25">&#182;</a>
+                <a class="pilcrow" href="#section-29">&#182;</a>
               </div>
               <p>Add a command to show the history stack</p>
 
@@ -570,11 +635,11 @@ Unwrap that too.</p>
         </li>
         
         
-        <li id="section-26">
+        <li id="section-30">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-26">&#182;</a>
+                <a class="pilcrow" href="#section-30">&#182;</a>
               </div>
               <p>Node 0.11 changed API, a command such as ‘.help’ is now stored as ‘help’</p>
 
@@ -585,7 +650,7 @@ Unwrap that too.</p>
 
 <span class="hljs-built_in">module</span>.exports =
   start: <span class="hljs-function"><span class="hljs-params">(opts = {})</span> -&gt;</span>
-    [major, minor, build] = process.versions.node.split(<span class="hljs-string">'.'</span>).map (n) -&gt; parseInt(n)
+    [major, minor, build] = process.versions.node.split(<span class="hljs-string">'.'</span>).map (n) -&gt; parseInt(n, <span class="hljs-number">10</span>)
 
     <span class="hljs-keyword">if</span> major &lt; <span class="hljs-number">6</span>
       <span class="hljs-built_in">console</span>.warn <span class="hljs-string">"Node 6+ required for CoffeeScript REPL"</span>
@@ -603,11 +668,11 @@ Unwrap that too.</p>
         </li>
         
         
-        <li id="section-27">
+        <li id="section-31">
             <div class="annotation">
               
               <div class="pilwrap ">
-                <a class="pilcrow" href="#section-27">&#182;</a>
+                <a class="pilcrow" href="#section-31">&#182;</a>
               </div>
               <p>Adapt help inherited from the node REPL</p>
 

docs/v2/annotated-source/sourcemap.html

@@ -370,15 +370,22 @@ column for the current line:</p>
 
             </div>
             
-            <div class="content"><div class='highlight'><pre>    v3 =
+            <div class="content"><div class='highlight'><pre>    sources = <span class="hljs-keyword">if</span> options.sourceFiles
+      options.sourceFiles
+    <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span> options.filename
+      [options.filename]
+    <span class="hljs-keyword">else</span>
+      [<span class="hljs-string">'&lt;anonymous&gt;'</span>]
+
+    v3 =
       version:    <span class="hljs-number">3</span>
       file:       options.generatedFile <span class="hljs-keyword">or</span> <span class="hljs-string">''</span>
       sourceRoot: options.sourceRoot <span class="hljs-keyword">or</span> <span class="hljs-string">''</span>
-      sources:    options.sourceFiles <span class="hljs-keyword">or</span> [<span class="hljs-string">''</span>]
+      sources:    sources
       names:      []
       mappings:   buffer
 
-    v3.sourcesContent = [code] <span class="hljs-keyword">if</span> options.inlineMap
+    v3.sourcesContent = [code] <span class="hljs-keyword">if</span> options.sourceMap <span class="hljs-keyword">or</span> options.inlineMap
 
     v3</pre></div></div>
             
@@ -406,7 +413,7 @@ column for the current line:</p>
               </div>
               <p>Note that SourceMap VLQ encoding is “backwards”.  MIDI-style VLQ encoding puts
 the most-significant-bit (MSB) from the original value into the MSB of the VLQ
-encoded value (see <a href="http://en.wikipedia.org/wiki/File:Uintvar_coding.svg">Wikipedia</a>).
+encoded value (see <a href="https://en.wikipedia.org/wiki/File:Uintvar_coding.svg">Wikipedia</a>).
 SourceMap VLQ does things the other way around, with the least significat four
 bits of the original value encoded into the first byte of the VLQ encoded value.</p>
 

docs/v2/announcing-coffeescript-2/index.html

@@ -0,0 +1,351 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta http-equiv="content-type" content="text/html;charset=UTF-8" />
+<title>Announcing CoffeeScript 2</title>
+<meta name="viewport" content="width=device-width, initial-scale=1" />
+<link rel="canonical" href="http://coffeescript.org" />
+
+<link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png">
+<link rel="icon" type="image/png" href="/favicon-32x32.png" sizes="32x32">
+<link rel="icon" type="image/png" href="/favicon-16x16.png" sizes="16x16">
+<link rel="manifest" href="/manifest.json">
+<link rel="mask-icon" href="/safari-pinned-tab.svg" color="#5bbad5">
+<meta name="theme-color" content="#ffffff">
+
+<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-/Y6pD6FV/Vv2HJnA6t+vslU6fwYXjCFtcEpHbNJ0lyAFsXTsjBbfaDjzALeQsN6M" crossorigin="anonymous">
+<link href="https://fonts.googleapis.com/css?family=Alegreya+Sans:400,800|Galada:400|Lato:300,300i,400,700|Roboto+Mono:400,400i" rel="stylesheet" crossorigin="anonymous">
+<style>
+body {
+  /* Push below header bar */
+  margin-top: 3.5rem;
+  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1 3"><path opacity=".02" fill="#000" d="M0 0h1v1H0z"/><path opacity=".005" fill="#000" d="M0 1h1v2H0z"/></svg>');
+  background-size: 1px 3px;
+}
+
+svg {
+  width: auto;
+  height: 100%;
+}
+
+a {
+  color: #1b5e20;
+  transition: 0.1s ease-in-out;
+}
+a:focus, a:hover, a:active {
+  color: #388e3c;
+  cursor: pointer;
+  text-decoration: none;
+}
+
+button:focus, .navbar-dark .navbar-toggler:focus {
+  outline: none;
+  border: thin solid rgba(248, 243, 240, 0.3);
+}
+
+.bg-dark {
+  background-color: #3e2723 !important;
+}
+
+.bg-ribbed-light {
+  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1 3"><path opacity=".03" fill="#000" d="M0 0h1v1H0z"/><path opacity=".005" fill="#000" d="M0 1h1v2H0z"/></svg>');
+  background-size: 1px 3px;
+}
+.bg-ribbed-dark {
+  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1 3"><path opacity=".2" fill="#000" d="M0 0h1v1H0z"/><path opacity=".15" fill="#000" d="M0 1h1v2H0z"/></svg>');
+  background-size: 1px 3px;
+}
+
+
+/*
+ * Header
+ */
+.site-navbar {
+  height: 3.5rem;
+  font-family: 'Lato';
+  font-weight: 400;
+  font-size: 1.1em;
+}
+
+.navbar-brand {
+  height: 2.2em;
+  margin-right: 1em;
+}
+
+.navbar-dark path {
+  fill: #fff;
+}
+
+.navbar-nav .nav-item {
+  margin-left: 0.6em;
+  margin-right: 0.6em;
+  border-radius: 0.4em;
+}
+.navbar-nav .nav-item:hover,
+.navbar-nav .nav-item:active,
+.navbar-nav .nav-item.show {
+  background-color: #4e342e;
+}
+
+.navbar-toggler {
+  transition: all 0.1s ease-in-out;
+}
+
+
+/*
+ * Main content
+ */
+
+.main {
+  padding: 1.3em;
+}
+@media (min-width: 992px) {
+  .main {
+    padding-right: 2em;
+    padding-left: 2em;
+  }
+}
+
+h1 {
+  font: 2.5em Galada;
+  color: #2f2625;
+  text-align: center;
+}
+@media (min-width: 768px) {
+  h1 {
+    font-size: 3em;
+  }
+}
+@media (min-width: 992px) {
+  h1 {
+    font-size: 4em;
+  }
+}
+
+.title-logo {
+  display: inline-block;
+  height: 1em;
+  transform: translateY(0.2em);
+  margin-left: 0.3em;
+  margin-right: 0.25em;
+  fill: #2f2625;
+}
+
+.main p, .main li {
+  font-family: Lato;
+  font-weight: 300;
+  font-size: 1.1em;
+  line-height: 1.6;
+}
+.main blockquote {
+  font-size: 1.1em;
+}
+@media (min-width: 768px) {
+  .main p, .main li {
+    font-size: 1.3em;
+  }
+  .main blockquote {
+    font-size: 1.3em;
+  }
+}
+.main strong {
+  font-weight: 700;
+}
+.main a {
+  border-bottom: 2px solid transparent;
+  font-weight: 400;
+}
+.main a:focus, .main a:hover, .main a:active {
+  border-bottom: 2px solid rgba(56, 142, 60, 0.2);
+}
+.main blockquote pre {
+  background-color: #f8f3f0;
+  color: #2f2625;
+  border-radius: .3em;
+  padding: 0.4em 0.6em;
+}
+
+p, blockquote, li {
+  margin-bottom: 1.3rem;
+}
+.credits li {
+  margin-bottom: 0.3em;
+}
+
+h2, h3, h4 {
+  margin-top: 1.3em;
+  margin-bottom: 0.6em;
+  font-family: 'Alegreya Sans';
+}
+h2 {
+  font-weight: 800;
+}
+h3, h4, h2 time {
+  font-weight: 400;
+}
+
+.main h2 {
+  padding-top: 4rem;
+  margin-top: -4rem;
+}
+
+code {
+  font-family: 'Roboto Mono';
+  font-weight: 400;
+}
+code, a > code {
+  background-color: #f8f3f0;
+  padding: 0.2rem 0.4rem;
+}
+code {
+  color: #2f2625;
+}
+
+
+.uneditable-code-block .comment {
+  font-style: italic;
+  color: #837B85;
+}
+.uneditable-code-block .class,
+.uneditable-code-block .function,
+.uneditable-code-block .keyword,
+.uneditable-code-block .reserved,
+.uneditable-code-block .title {
+  color: #534328;
+}
+.uneditable-code-block .string
+.uneditable-code-block .value
+.uneditable-code-block .inheritance
+.uneditable-code-block .header {
+  color: #3A4029;
+}
+.uneditable-code-block .variable,
+.uneditable-code-block .literal,
+.uneditable-code-block .tag,
+.uneditable-code-block .regexp,
+.uneditable-code-block .subst,
+.uneditable-code-block .property {
+  color: #474429;
+}
+.uneditable-code-block .number,
+.uneditable-code-block .preprocessor,
+.uneditable-code-block .built_in,
+.uneditable-code-block .params,
+.uneditable-code-block .constant {
+  color: #474429;
+}
+</style>
+
+</head>
+<body>
+
+<nav class="navbar navbar-expand-lg fixed-top navbar-dark bg-dark bg-ribbed-dark site-navbar">
+  <a class="navbar-brand" href="/" data-close="try"><svg xmlns="http://www.w3.org/2000/svg" viewBox="-22 347 566 100">
+  <title>
+    CoffeeScript Logo
+  </title>
+  <path d="M21.7 351.1c.1.6-.2 1.1-1.2 1.6-1.3-.7-4.1-1.1-6.4-.9-2.5.2-4.6 1-4.3 2.7.4 1.7 2.8 2.7 7.1 2.3 10.5-.9 10.4-8 25.8-9.4 12-1.1 18.7 2.6 19.6 7.1.7 3.5-2.2 6.9-10.9 7.6-7.7.7-12.2-1.4-12.6-3.5-.2-1.1.4-2.7 4.1-3.1.4 1.7 2.5 3.5 7.5 3 3.6-.3 6.6-1.6 6.2-3.6-.4-2.1-4.2-3.3-10.2-2.8-12.2 1.1-15.2 7.8-25.6 8.7-7.4.7-13.4-2-14.2-6-.3-1.5-.3-5 7.5-5.7 4-.3 7.2.4 7.6 2zm-39 41.8c-3.4 4.3-4.9 9.3-4.6 14.2.3 4.9 2.7 8.9 6.5 12 4 3.1 8.3 4 13.2 3.1 1.9-.3 4-1.3 5.9-1.9-4 0-7.4-1.3-10.8-4-3.7-2.7-6.2-6.5-6.8-11.1-.9-4.3 0-8.3 2.4-11.8 2.7-3.4 6.2-5.3 10.8-5.9 4.6-.3 8.6.9 12.6 3.7-.9-1.3-2.2-2.2-3.4-3.4-4-2.7-8.3-4-13.6-2.7-4.8 1-8.8 3.5-12.2 7.8zm53.6-23.1c-12.9 0-24.4-1.3-32.7-3.1-8.9-2.2-13.6-4.6-13.6-7.7 0-1.3.6-2.4 2.4-3.7-5.6 2.2-8.6 4-8.6 6.8.3 3.1 5.3 6.2 15.5 8.6 9.6 2.4 21.9 3.7 36.7 3.7 15.1 0 27.1-1.3 36.7-3.7 10.2-2.4 15.1-5.6 15.1-8.6 0-2.2-2.2-4.3-6.2-5.9.9.6 1.6 1.6 1.6 2.7 0 3.1-4.6 5.6-13.9 7.7-8.6 1.9-19.6 3.2-33 3.2zm36.8 8.6c-9.6 2.2-21.9 3.7-36.7 3.7-15.1 0-27.4-1.6-37-3.7-8.6-2.2-13.2-4.6-14.8-7.1 1.6 10.8 5.3 21 10.2 30 3.7 5.6 7.4 10.5 11.1 15.8 1.6 3.1 2.7 6.2 3.4 9.3 2.4 3.4 5.9 5.6 10.2 6.8 5.3 1.9 10.8 2.7 16.4 2.4h.6c5.6.3 11.5-.6 16.9-2.4 4-1.3 7.4-3.4 9.9-6.8h.3c.6-3.1 1.6-6.2 3.1-9.3 3.7-5.3 7.4-10.2 11.1-15.8 4.9-8.9 8.3-19.1 10.2-30-2 2.8-6.6 5.2-14.9 7.1zm106.2 30.1c-4.8 12.1-17.6 16.9-25.9 16.9-13.4 0-19.9-6-19.9-22.3 0-16.5 7.9-47.3 31.7-47.3 8.5 0 15.2 3.3 15.2 12.1 0 4.8-1.8 8.3-6.4 8.3-1.5 0-3.4-.4-5.2-2.4 2.2-1.1 4.2-4.9 4.2-8.3 0-2.9-1.5-5.6-5.6-5.6-10 0-18.9 23.9-18.9 42.4 0 8.3 2.2 14.2 10.9 14.2 7.1 0 13.5-3.4 17.7-9.1l2.2 1.1zm32.9-16.3c.4.2.7.2 1 .2 4.2 0 10.1-2.7 14-5.5l.8 2.4c-3.4 3.7-9.5 6.5-16.1 7.5-1.5 16.8-10.6 27.3-21.7 27.3-8.4 0-14.5-4-14.5-14.4 0-10.5 6.2-32.2 24.9-32.2 7.8.3 11.6 5.3 11.6 14.7zm-7.7 5c-1.9-.5-2.4-2-2.4-3.8 0-2.5 1.2-4.2 2.8-4.9-.2-3.8-1.1-5.3-3.4-5.3-6.5 0-12 16.6-12 25.6 0 6 1.2 7.3 4.6 7.3 4.2.1 8.9-8 10.4-18.9zm-6.6 39.7c0-8.3 7.1-11 15.8-13.6l10.9-51.9c2.7-13 10.6-15.5 16.5-15.5 4.1 0 8 2.2 9.7 5.7 3.6-4.6 8.4-5.7 12.4-5.7 5.6 0 10.8 3.9 10.8 9.8 0 1.5-.1 2.6-.3 3.7h-4.3c.1-.9.2-1.7.2-2.4 0-2.1-1.7-3.1-3.4-3.1-2 0-4.8 1.1-6.2 7.1l-1.7 7.4h9.1l-.8 3.6h-9l-10.3 49.1c-2.7 13-10.6 15.5-16.5 15.5-5.2 0-8.3-2.3-9.8-5.7-3.5 4.6-8.3 5.7-12.3 5.7-5.6.1-10.8-3.8-10.8-9.7zm9.1 1.8c1.9 0 4.2-1.8 5.4-7.1l1.1-5.3c-5.7 2-10.1 4.4-10.1 9.4 0 1.2 1.7 3 3.6 3zm21.7 0c1.9 0 4.2-1.8 5.4-7.1l2.2-10.4-9.4 1.8-1.8 8.3c-.5 2.1-1.1 4-1.8 5.6.9 1.3 3 1.8 5.4 1.8zm-1.4-18l9.4-1.7 7.7-36.8h-9l-8.1 38.5zm16.6-56.7c-2 0-4.8 1.1-6.2 7.1l-1.7 7.4h9l2.1-9.5c.2-.7.2-1.3.2-2 .1-2-1.5-3-3.4-3zm37.9 53c7.1 0 11.6-4 16.1-9.2h3.1c-5.2 8.3-12.9 16.8-25 16.8-8.5 0-14.2-4.2-14.2-14.5 0-10.5 5.9-32.3 24.6-32.3 8.1 0 10 4.2 10 8.7 0 10.5-10 18.5-20.9 19.2-.1 1.3-.2 2.5-.2 3.6 0 6.2 2.2 7.7 6.5 7.7zm5.3-34.4c-4.6 0-9.1 9.7-10.9 18.7 7-.5 13.2-7.4 13.2-15 0-2.2-.5-3.7-2.3-3.7zm28.6 33.4c3.4 0 7.8-2.3 10.8-4.8-2 10.4-8.4 13.4-15.8 13.4-8.4 0-14.1-4.2-14.1-14.5 0-10.5 5.9-32.3 24.6-32.3 8.1 0 10 4.2 10 8.7 0 10.6-10 18.5-20.9 19.2-.1.9-.2 2-.2 2.7 0 5.7 2.5 7.6 5.6 7.6zm6.2-33.4c-4.5 0-9.1 10.1-11 18.7 7.1-.4 13.3-7.3 13.3-15 0-2.2-.6-3.7-2.3-3.7zm51.3-6.7c-1.7 0-3-.6-4.2-1.9 2.4-1.5 4.1-4.8 4.1-7.8 0-3.1-1.8-6.1-6.8-6.1s-8.3 2.8-8.3 8.2c0 13.3 20.5 15.2 20.5 34.8 0 15.3-12.3 22.7-25.6 22.7-10.4 0-19.3-4.5-19.3-15.7 0-9.8 7-14.9 13.3-14.9 3.1 0 7.7 1.3 8 6-4.9 0-10.7 2.3-10.7 8.5 0 4.5 2.9 8.7 8.7 8.7 6.1 0 10.6-4.4 10.6-12 0-15.6-18.6-21.1-18.6-34.5 0-9.5 9.3-16.3 21-16.3 4.3 0 14.6.9 14.6 10.9.1 5.5-2.8 9.4-7.3 9.4zm36.2 10.3c0-2.3-.8-3.7-2.5-3.7-5.7 0-11.7 16.6-11.7 26.7 0 6.2 2.2 7.6 6.6 7.6 7.1 0 11.6-4 16.1-9.2h3.1c-5.2 8.3-12.9 16.8-25 16.8-8.5 0-14.2-4.2-14.2-14.5 0-10.6 6-32.3 24.5-32.3 8.1 0 10.1 4.2 10.1 8.3 0 4.4-2.2 6.7-4.8 6.7-1 0-2.1-.4-3.1-1.1.5-1.9.9-3.6.9-5.3zm27.7-7.6l-1.2 5.7c3.1-2.7 6.7-5.7 11-5.7 4.1 0 6.3 3.3 6.3 6.9 0 3.1-2.1 6.7-6.6 6.7-5.1 0-2.5-6-5.3-6-2.7 0-4.4 1.4-6.7 3.4l-7.2 34.6h-13.1l9.6-45.4 13.2-.2zm34.2 0l-6.6 30.9c-.3 1.2-.4 2.1-.4 2.9 0 2.5 1.2 3.3 3.7 3.3 3.5 0 6.9-3.4 8.1-8h3.8c-5.2 14.8-14.2 16.8-19.1 16.8-5.5 0-9.7-3.2-9.7-10.9 0-1.8.3-3.7.7-5.9l6.2-29.2 13.3.1zm-4.1-19.4c4 0 7.2 3.2 7.2 7.2s-3.2 7.1-7.2 7.1-7.1-3.1-7.1-7.1c-.1-4 3.2-7.2 7.1-7.2zm29.1 16l-1.5 6.9c2.6-2.3 6.1-3.9 10.7-3.9 6.2 0 11.1 3.5 11.1 14.4 0 12.2-4.7 32.1-22.3 32.1-4.5 0-6.8-1.6-7.7-3.2l-4.7 22.1-13.7 3.2 15.2-71.5 12.9-.1zm7.8 17c0-7-2.9-7.5-4.5-7.5-2 0-4.5 1.6-6.3 4.4l-5.4 25.5c.4 1 1.4 2.1 3.4 2.1 9.7 0 12.8-15.9 12.8-24.5zm27.8 17.3c-.3 1.1-.5 2.2-.5 3.1 0 1.9.7 3.2 3.1 3.2.7 0 1.7 0 2.4-.3-2.5 7.8-6.6 8.9-9.6 8.9-6.4 0-9.1-4.4-9.1-10.3 0-1.6.2-3.1.6-4.8l5.8-27.2h-3l.7-3.6h3L528 366l13.4-1.9s-1.4 6.2-3.1 14.4h5.5l-.7 3.6h-5.5l-5.7 27.4z"/>
+</svg>
+</a>
+  <button class="navbar-toggler" type="button" data-toggle="offcanvas" data-close="try" aria-label="Toggle sidebar">
+    <span class="navbar-toggler-icon"></span>
+  </button>
+
+  <nav class="collapse navbar-collapse">
+    <div class="navbar-nav mr-auto d-none d-lg-flex">
+      <a href="../#try" id="try-link" class="nav-item nav-link" data-toggle="try">Try CoffeeScript</a>
+      <a href="../#language" class="nav-item nav-link" data-close="try">Language Reference</a>
+      <a href="../#resources" class="nav-item nav-link" data-close="try">Resources</a>
+      <a href="https://github.com/jashkenas/coffeescript" class="nav-item nav-link" data-close="try">GitHub
+        </a>
+    </div>
+  </nav>
+</nav>
+
+
+<div class="container" id="top">
+  <div class="row">
+    <main class="main">
+      <header>
+        <h1>Announcing <span class="text-nowrap"><svg class="title-logo" xmlns="http://www.w3.org/2000/svg" viewBox="-76 212 458 369">
+          <title>
+            CoffeeScript Icon
+          </title>
+          <path d="M106 228.6c.5 2.3-.9 4.4-5 6.5-5.5-3.1-16.9-4.4-26.7-3.5-10.4.9-19.4 4.2-17.9 11.3 1.5 7.1 11.7 11 29.5 9.5 43.6-3.8 43.4-33.3 107.4-39 49.8-4.4 77.8 11 81.8 29.7 3.1 14.7-9.1 28.6-45.2 31.8-32 2.8-50.7-5.6-52.6-14.6-1-4.5 1.8-11.3 17.2-13.1 1.5 7 10.6 14.4 31.1 12.6 14.8-1.3 27.6-6.6 25.9-14.9-1.8-8.6-17.7-13.7-42.6-11.5-50.7 4.5-63.2 32.5-106.8 36.3-30.8 2.7-55.9-8.5-59.4-25.1-1.3-6.1-1.4-21 31.2-23.9 17.1-1.5 30.7 1.5 32.1 7.9zM-56.4 402.5c-14.3 18-20.4 38.8-19.2 59.2 1.2 20.4 11.4 37.1 26.9 50.2C-32 525-14 528.6 6.4 525c7.8-1.2 16.7-5.3 24.5-7.8-16.7 0-31-5.3-44.9-16.7-15.5-11.4-25.7-26.9-28.2-46.1-3.7-18 0-34.7 10.2-49 11.4-14.3 25.7-22 44.9-24.5 19.2-1.2 35.9 3.7 52.6 15.5-3.7-5.3-9-9-14.3-14.3-16.7-11.4-34.7-16.7-56.7-11.4-19.9 3.6-36.7 13.8-50.9 31.8zm223.6-96.3c-53.9 0-101.6-5.3-136.3-13.1-37.1-9-56.7-19.2-56.7-32.2 0-5.3 2.4-10.2 10.2-15.5-23.3 9-35.9 16.7-35.9 28.2 1.2 13.1 22 25.7 64.5 35.9 40 10.2 91.4 15.5 153 15.5 62.8 0 113-5.3 153-15.5 42.4-10.2 62.8-23.3 62.8-35.9 0-9-9-18-25.7-24.5 3.7 2.4 6.5 6.5 6.5 11.4 0 13.1-19.2 23.3-57.9 32.2-36 8.2-82.1 13.5-137.5 13.5zm153 35.9c-40 9-91.4 15.5-153 15.5-62.8 0-114.2-6.5-154.2-15.5-35.9-9-55.1-19.2-61.6-29.4 6.5 44.9 22 87.3 42.4 124.8 15.5 23.3 31 43.7 46.1 65.7 6.5 13.1 11.4 25.7 14.3 38.8 10.2 14.3 24.5 23.3 42.4 28.2 22 7.8 44.9 11.4 68.1 10.2h2.4c23.3 1.2 47.7-2.4 70.6-10.2 16.7-5.3 31-14.3 41.2-28.2h1.2c2.4-13.1 6.5-25.7 13.1-38.8 15.5-22 31-42.4 46.1-65.7 20.4-37.1 34.7-79.6 42.4-124.8-7.7 11.4-26.9 21.6-61.5 29.4z"/>
+        </svg> CoffeeScript 2</span></h1>
+      </header>
+      <section>
+<p>We are pleased to announce CoffeeScript 2! This new release of the CoffeeScript language and compiler aims to bring CoffeeScript into the modern JavaScript era, closing gaps in compatibility with JavaScript while preserving the clean syntax that is CoffeeScript’s hallmark. In a nutshell:</p>
+<ul>
+<li>The CoffeeScript 2 compiler now translates CoffeeScript code into modern JavaScript syntax. So a CoffeeScript <code>=&gt;</code> is now output as <code>=&gt;</code>, a CoffeeScript <code>class</code> is now output using the <code>class</code> keyword, and so on. This means you may need to <a href="../#transpilation">transpile the CoffeeScript compiler’s output</a>.</li>
+<li>CoffeeScript 2 adds support for <a href="../#async-functions">async functions</a> syntax, for the future <a href="../#destructuring">object destructuring</a> syntax, and for <a href="../#jsx">JSX</a>. Some features, such as <a href="../#modules">modules</a> (<code>import</code> and <code>export</code> statements), <a href="../#generator-iteration"><code>for…of</code></a>, and <a href="../#tagged-template-literals">tagged template literals</a> were backported into CoffeeScript versions 1.11 and 1.12.</li>
+<li>All of the above was achieved with very few <a href="../#breaking-changes">breaking changes from 1.x</a>. Most current CoffeeScript projects should be able to upgrade with little or no refactoring necessary.</li>
+</ul>
+<p>CoffeeScript 2 was developed with two primary goals: remove any incompatibilities with modern JavaScript that might prevent CoffeeScript from being used on a project; and preserve as much backward compatibility as possible. <a href="../#installation">Install now</a>: <code>npm install -g coffeescript@2</code></p>
+<h2 id="modern-javascript-output">Modern JavaScript Output</h2>
+<p>From the beginning, CoffeeScript has been described as being “just JavaScript.” And today, JavaScript is ES2015 (well, ES2017; also commonly known as ES6). CoffeeScript welcomes the changes in the JavaScript world and we’re happy to stop outputting circa-1999 syntax for modern features.</p>
+<p>Many new JavaScript features, such as <code>=&gt;</code>, were informed by CoffeeScript and are one-to-one compatible, or very nearly so. This has made outputting many of CoffeeScript’s innovations into new JS syntax straightforward: not only does <code>=&gt;</code> become <code>=&gt;</code>, but <code>{ a } = obj</code> becomes <code>{ a } = obj</code>, <code>&quot;a#{b}c&quot;</code> becomes <code>`a${b}c`</code> and so on.</p>
+<p>The following CoffeeScript features were updated in 2.0 to output using modern JavaScript syntax (or added in CoffeeScript 1.11 through 2.0, output using modern syntax):</p>
+<ul>
+<li>Modules: <code>import</code>/<code>export</code></li>
+<li>Classes: <code>class Animal</code></li>
+<li>Async functions: <code>await someFunction()</code></li>
+<li>Bound/arrow functions: <code>=&gt;</code></li>
+<li>Function default parameters: <code>(options = {}) -&gt;</code></li>
+<li>Function splat/rest parameters: <code>(items...) -&gt;</code></li>
+<li>Destructuring, for both arrays and objects: <code>[first, second] = items</code>, <code>{length} = items</code></li>
+<li>Object rest/spread properties: <code>{options..., force: yes}</code>, <code>{force, otherOptions...} = options</code></li>
+<li>Interpolated strings/template literals (JS backticked strings): <code>&quot;Hello, #{user}!&quot;</code></li>
+<li>Tagged template literals: <code>html&quot;&lt;strong&gt;coffee&lt;/strong&gt;&quot;</code></li>
+<li>JavaScript’s <code>for…of</code> is now available as CoffeeScript’s <code>for…from</code> (we already had a <code>for…of</code>): <code>for n from generatorFunction()</code></li>
+</ul>
+<p>Not all CoffeeScript features were adopted into JavaScript in 100% the same way; most notably, <a href="../#breaking-changes-default-values">default values</a> in JavaScript (and also in CoffeeScript 2) are only applied when a variable is <code>undefined</code>, not <code>undefined</code> or <code>null</code> as in CoffeeScript 1; and <a href="../#breaking-changes-classes">classes</a> have their own differences. See the <a href="../#breaking-changes">breaking changes</a> for the fine details.</p>
+<p>In our experience, most breaking changes are edge cases that should affect very few people, like JavaScript’s <a href="../#breaking-change-fat-arrow">lack of an <code>arguments</code> object inside arrow functions</a>. There seem to be two breaking changes that affect a significant number of projects:</p>
+<ul>
+<li>In CoffeeScript 2, “bare” <code>super</code> (calling <code>super</code> without arguments) is now no longer allowed, and one must use <code>super()</code> or <code>super arguments...</code> instead.</li>
+<li>References to <code>this</code>/<code>@</code> cannot occur before a call to <code>super</code>, per the JS spec.</li>
+</ul>
+<p>See the <a href="../#breaking-changes-super-extends">full details</a>. Either the CoffeeScript compiler or your transpiler will throw errors for either of these cases, so updating your code is a matter of fixing each occurrence as the compiler errors on it, until your code compiles successfully.</p>
+<h2 id="other-features">Other Features</h2>
+<p>Besides supporting new JavaScript features and outputting older CoffeeScript features in modern JS syntax, CoffeeScript 2 has added support for the following:</p>
+<ul>
+<li><a href="../#jsx">JSX</a></li>
+<li><a href="../#comments">Line comments</a> are now output (in CoffeeScript 1 they were discarded)</li>
+<li>Block comments are now allowed anywhere, enabling <a href="../#type-annotations">static type annotations</a> using Flow’s comment-based syntax</li>
+</ul>
+<p>There are many smaller improvements as well, such as to the <code>coffee</code> command-line tool. You can read all the details in the <a href="../#changelog">changelog</a> for the 2.0.0 betas.</p>
+<h2 id="what-about-…">“What About …?”</h2>
+<p>A few JavaScript features have been intentionally omitted from CoffeeScript. These include <code>let</code> and <code>const</code> (and <code>var</code>), named functions and the <code>get</code> and <code>set</code> keywords. These get asked about so often that we added a section to the docs called <a href="../#unsupported">Unsupported ECMAScript Features</a>. CoffeeScript’s lack of equivalents for these features does not affect compatibility or interoperability with JavaScript modules or libraries.</p>
+<h2 id="future-compatibility">Future Compatibility</h2>
+<p>Back when CoffeeScript 1 was created, ES2015 JavaScript and transpilers like <a href="http://babeljs.io/">Babel</a>, <a href="https://buble.surge.sh/">Bublé</a> or <a href="https://github.com/google/traceur-compiler">Traceur Compiler</a> were several years away. The CoffeeScript compiler itself had to do what today’s transpilers do, converting modern features like destructuring and arrow functions into equivalent lowest-common-denominator JavaScript.</p>
+<p>But transpilers exist now, and they do their job well. With them around, there’s no need for the CoffeeScript compiler to duplicate this functionality. All the CoffeeScript compiler needs to worry about now is converting the CoffeeScript version of new syntax into the JS version of that syntax, e.g. <code>&quot;Hello, #{name}!&quot;</code> into <code>`Hello, ${name}!`</code>. This makes adding support for new JavaScript features much easier than before.</p>
+<p>Most features added by ECMA in recent years haven’t required any updates at all in CoffeeScript. New global objects, or new methods on global objects, don’t require any updates on CoffeeScript’s part to work. Some proposed future JS features <em>do</em> involve new syntax, like <a href="https://github.com/tc39/proposal-class-fields">class fields</a>. We have adopted a policy of supporting new syntax only when it reaches Stage 4 in ECMA’s process, which means that the syntax is final and will be in the next ES release. On occasion we might support a <em>feature</em> before it has reached Stage 4, but output it using equivalent non-experimental syntax instead of the newly-proposed syntax; that’s what’s happening in 2.0.0 for <a href="../#splats">object destructuring</a>, where our output uses the same polyfill that Babel uses. When the new syntax is finalized, we will update our output to use the final syntax.</p>
+<h2 id="credits">Credits</h2>
+<p>The major features of 2.0.0 would not have been possible without the following people:</p>
+<ul class="credits">
+<li><a href="https://github.com/GeoffreyBooth">@GeoffreyBooth</a>: Organizer of the CoffeeScript 2 effort, developer for modules; arrow functions, function default parameters and function rest parameters output using ES2015 syntax; line comments output and block comments output anywhere; block embedded JavaScript via triple backticks; improved parsing of Literate CoffeeScript; and the new docs website.</li>
+<li><a href="https://github.com/connec">@connec</a>: Classes; destructuring; splats/rest syntax in arrays and function calls; and computed properties all output using ES2015 syntax.</li>
+<li><a href="https://github.com/GabrielRatener">@GabrielRatener</a>: Async functions.</li>
+<li><a href="https://github.com/xixixao">@xixixao</a>: JSX.</li>
+<li><a href="https://github.com/zdenko">@zdenko</a>: Object rest/spread properties (object destructuring).</li>
+<li><a href="https://github.com/greghuc">@greghuc</a>: Tagged template literals, interpolated strings output in ES2015 syntax.</li>
+<li><a href="https://github.com/atg">@atg</a>: ES2015 <code>for…of</code>, supported as CoffeeScript’s <code>for…from</code>.</li>
+<li><a href="https://github.com/lydell">@lydell</a> and <a href="https://github.com/jashkenas">@jashkenas</a>: Guidance, code reviews and feedback.</li>
+</ul>
+<p>See the full <a href="https://github.com/jashkenas/coffeescript/wiki/CoffeeScript-2-Honor-Roll">honor roll</a>.</p>
+<p>Thanks and we hope you enjoy CoffeeScript 2!</p>
+
+      </section>
+    </main>
+  </div>
+</div>
+
+<script async src="https://www.googletagmanager.com/gtag/js?id=UA-106156830-1"></script>
+<script>
+  window.dataLayer = window.dataLayer || [];
+  function gtag(){dataLayer.push(arguments)};
+  gtag('js', new Date());
+  gtag('config', 'UA-106156830-1');
+</script>
+</body>
+</html>

documentation/examples/array_comprehensions.coffee

@@ -1,8 +1,10 @@
 # Eat lunch.
+eat = (food) -> "#{food} eaten."
 eat food for food in ['toast', 'cheese', 'wine']
 
 # Fine five course dining.
 courses = ['greens', 'caviar', 'truffles', 'roast', 'cake']
+menu = (i, dish) -> "Menu Item #{i}: #{dish}" 
 menu i + 1, dish for dish, i in courses
 
 # Health conscious meal.

documentation/examples/array_spread.coffee

@@ -0,0 +1,4 @@
+popular  = ['pepperoni', 'sausage', 'cheese']
+unwanted = ['anchovies', 'olives']
+
+all = [popular..., unwanted..., 'mushrooms']

documentation/examples/block_comment.coffee

@@ -1,4 +0,0 @@
-###
-SkinnyMochaHalfCaffScript Compiler v1.0
-Released under the MIT License
-###

documentation/examples/breaking_change_destructuring_default_values.coffee

@@ -0,0 +1,3 @@
+{a = 1} = {a: null}
+
+a  # Equals 1 in CoffeeScript 1.x, null in CoffeeScript 2

documentation/examples/breaking_change_fat_arrow.coffee

@@ -0,0 +1,5 @@
+outer = ->
+  inner = => Array.from arguments
+  inner()
+
+outer(1, 2)  # Returns '' in CoffeeScript 1.x, '1, 2' in CoffeeScript 2

documentation/examples/breaking_change_super_in_non-class_methods_refactor_with_apply.coffee

@@ -1,4 +1,18 @@
+# Helper functions
+hasProp = {}.hasOwnProperty
+extend = (child, parent) ->
+  ctor = ->
+    @constructor = child
+    return
+  for key of parent
+    if hasProp.call(parent, key)
+      child[key] = parent[key]
+  ctor.prototype = parent.prototype
+  child.prototype = new ctor
+  child
+
+
 A = ->
 B = ->
-B extends A
+extend B, A
 B.prototype.foo = -> A::foo.apply this, arguments

documentation/examples/chaining.coffee

@@ -2,5 +2,5 @@ $ 'body'
 .click (e) ->
   $ '.box'
   .fadeIn 'fast'
-  .addClass '.active'
+  .addClass 'show'
 .css 'background', 'white'

documentation/examples/comment.coffee

@@ -1 +1,7 @@
-code = 2 * 617 # The code is 1234
+###
+Fortune Cookie Reader v1.0
+Released under the MIT License
+###
+
+sayFortune = (fortune) ->
+  console.log fortune # in bed!

documentation/examples/do.coffee

@@ -1,4 +1,5 @@
 for filename in list
   do (filename) ->
-    fs.readFile filename, (err, contents) ->
-      compile filename, contents.toString()
+    if filename not in ['.DS_Store', 'Thumbs.db', 'ehthumbs.db']
+      fs.readFile filename, (err, contents) ->
+        compile filename, contents.toString()

documentation/examples/existence_declared.coffee

@@ -0,0 +1,4 @@
+major = 'Computer Science'
+
+unless major?
+  signUpForClass 'Introduction to Wines'

documentation/examples/existence_undeclared.coffee

@@ -0,0 +1,2 @@
+if window?
+  environment = 'browser (probably)'

documentation/examples/get_set.coffee

@@ -0,0 +1,9 @@
+screen =
+  width: 1200
+  ratio: 16/9
+
+Object.defineProperty screen, 'height',
+  get: ->
+    this.width / this.ratio
+  set: (val) ->
+    this.width = val / this.ratio

documentation/examples/heregexes.coffee

@@ -1,9 +1,6 @@
-OPERATOR = /// ^ (
-  ?: [-=]>             # function
-   | [-+*/%<>&|^!?=]=  # compound assign / compare
-   | >>>=?             # zero-fill right shift
-   | ([-+:])\1         # doubles
-   | ([&|<>])\2=?      # logic / shift
-   | \?\.              # soak access
-   | \.{2,3}           # range or splat
-) ///
+NUMBER     = ///
+  ^ 0b[01]+    |              # binary
+  ^ 0o[0-7]+   |              # octal
+  ^ 0x[\da-f]+ |              # hex
+  ^ \d*\.?\d+ (?:e[+-]?\d+)?  # decimal
+///i

documentation/examples/jsx.coffee

@@ -0,0 +1,9 @@
+renderStarRating = ({ rating, maxStars }) ->
+  <aside title={"Rating: #{rating} of #{maxStars} stars"}>
+    {for wholeStar in [0...Math.floor(rating)]
+      <Star className="wholeStar" key={wholeStar} />}
+    {if rating % 1 isnt 0
+      <Star className="halfStar" />}
+    {for emptyStar in [Math.ceil(rating)...maxStars]
+      <Star className="emptyStar" key={emptyStar} />}
+  </aside>

documentation/examples/object_spread.coffee

@@ -0,0 +1,5 @@
+user =
+  name: 'Werner Heisenberg'
+  occupation: 'theoretical physicist'
+
+currentUser = { user..., status: 'Uncertain' }

documentation/examples/splats.coffee

@@ -20,6 +20,8 @@ contenders = [
 
 awardMedals contenders...
 
-alert "Gold: " + gold
-alert "Silver: " + silver
-alert "The Field: " + rest
+alert """
+Gold: #{gold}
+Silver: #{silver}
+The Field: #{rest.join ', '}
+"""

documentation/examples/static.coffee

@@ -1,9 +1,9 @@
 class Teenager
-	@say: (speech) ->
-		words = speech.split ' '
-		fillers = ['uh', 'um', 'like', 'actually', 'so', 'maybe']
-		output = []
-		for word, index in words
-			output.push word
-			output.push fillers[Math.floor(Math.random() * fillers.length)] unless index is words.length - 1
-		output.join ', '
+  @say: (speech) ->
+    words = speech.split ' '
+    fillers = ['uh', 'um', 'like', 'actually', 'so', 'maybe']
+    output = []
+    for word, index in words
+      output.push word
+      output.push fillers[Math.floor(Math.random() * fillers.length)] unless index is words.length - 1
+    output.join ', '

documentation/examples/type_annotations.coffee

@@ -0,0 +1,4 @@
+# @flow
+
+fn = (str ###: string ###, num ###: number ###) ###: string ### ->
+  str + num

documentation/images/link.svg

@@ -1 +0,0 @@
-<svg aria-hidden="true" version="1.1" viewBox="0 0 16 16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg>

documentation/images/logo.svg

@@ -1,6 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" viewBox="-22 347 566 100">
-	<title>
-		CoffeeScript Logo
-	</title>
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documentation/sections/annotated_source.md

@@ -1,16 +1,16 @@
 ## Annotated Source
 
-You can browse the CoffeeScript <%= fullVersion %> source in readable, annotated form [here](http://coffeescript.org/v<%= majorVersion %>/annotated-source/). You can also jump directly to a particular source file:
+You can browse the CoffeeScript <%= fullVersion %> source in readable, annotated form [here](annotated-source/). You can also jump directly to a particular source file:
 
-- [Grammar Rules — src/grammar](http://coffeescript.org/v<%= majorVersion %>/annotated-source/grammar.html)
-- [Lexing Tokens — src/lexer](http://coffeescript.org/v<%= majorVersion %>/annotated-source/lexer.html)
-- [The Rewriter — src/rewriter](http://coffeescript.org/v<%= majorVersion %>/annotated-source/rewriter.html)
-- [The Syntax Tree — src/nodes](http://coffeescript.org/v<%= majorVersion %>/annotated-source/nodes.html)
-- [Lexical Scope — src/scope](http://coffeescript.org/v<%= majorVersion %>/annotated-source/scope.html)
-- [Helpers &amp; Utility Functions — src/helpers](http://coffeescript.org/v<%= majorVersion %>/annotated-source/helpers.html)
-- [The CoffeeScript Module — src/coffeescript](http://coffeescript.org/v<%= majorVersion %>/annotated-source/coffeescript.html)
-- [Cake &amp; Cakefiles — src/cake](http://coffeescript.org/v<%= majorVersion %>/annotated-source/cake.html)
-- [“coffee” Command-Line Utility — src/command](http://coffeescript.org/v<%= majorVersion %>/annotated-source/command.html)
-- [Option Parsing — src/optparse](http://coffeescript.org/v<%= majorVersion %>/annotated-source/optparse.html)
-- [Interactive REPL — src/repl](http://coffeescript.org/v<%= majorVersion %>/annotated-source/repl.html)
-- [Source Maps — src/sourcemap](http://coffeescript.org/v<%= majorVersion %>/annotated-source/sourcemap.html)
+- [Grammar Rules — src/grammar](annotated-source/grammar.html)
+- [Lexing Tokens — src/lexer](annotated-source/lexer.html)
+- [The Rewriter — src/rewriter](annotated-source/rewriter.html)
+- [The Syntax Tree — src/nodes](annotated-source/nodes.html)
+- [Lexical Scope — src/scope](annotated-source/scope.html)
+- [Helpers &amp; Utility Functions — src/helpers](annotated-source/helpers.html)
+- [The CoffeeScript Module — src/coffeescript](annotated-source/coffeescript.html)
+- [Cake &amp; Cakefiles — src/cake](annotated-source/cake.html)
+- [“coffee” Command-Line Utility — src/command](annotated-source/command.html)
+- [Option Parsing — src/optparse](annotated-source/optparse.html)
+- [Interactive REPL — src/repl](annotated-source/repl.html)
+- [Source Maps — src/sourcemap](annotated-source/sourcemap.html)

documentation/sections/announcing_coffeescript_2.md

@@ -0,0 +1,78 @@
+# Announcing CoffeeScript 2
+
+We are pleased to announce CoffeeScript 2! This new release of the CoffeeScript language and compiler aims to bring CoffeeScript into the modern JavaScript era, closing gaps in compatibility with JavaScript while preserving the clean syntax that is CoffeeScript’s hallmark. In a nutshell:
+
+- The CoffeeScript 2 compiler now translates CoffeeScript code into modern JavaScript syntax. So a CoffeeScript `=>` is now output as `=>`, a CoffeeScript `class` is now output using the `class` keyword, and so on. This means you may need to [transpile the CoffeeScript compiler’s output](../#es2015plus-output).
+- CoffeeScript 2 adds support for [async functions](../#async-functions) syntax, for the future [object destructuring](../#destructuring) syntax, and for [JSX](../#jsx). Some features, such as [modules](../#modules) (`import` and `export` statements), [`for…of`](../#generator-iteration), and [tagged template literals](../#tagged-template-literals) were backported into CoffeeScript versions 1.11 and 1.12.
+- All of the above was achieved with very few [breaking changes from 1.x](../#breaking-changes). Most current CoffeeScript projects should be able to upgrade with little or no refactoring necessary.
+
+CoffeeScript 2 was developed with two primary goals: remove any incompatibilities with modern JavaScript that might prevent CoffeeScript from being used on a project; and preserve as much backward compatibility as possible. [Install now](../#installation): `npm install -g coffeescript@2`
+
+## Modern JavaScript Output
+
+From the beginning, CoffeeScript has been described as being “just JavaScript.” And today, JavaScript is ES2015 (well, ES2017; also commonly known as ES6). CoffeeScript welcomes the changes in the JavaScript world and we’re happy to stop outputting circa-1999 syntax for modern features.
+
+Many new JavaScript features, such as `=>`, were informed by CoffeeScript and are one-to-one compatible, or very nearly so. This has made outputting many of CoffeeScript’s innovations into new JS syntax straightforward: not only does `=>` become `=>`, but `{ a } = obj` becomes `{ a } = obj`, `"a#{b}c"` becomes `` `a${b}c` `` and so on.
+
+The following CoffeeScript features were updated in 2.0 to output using modern JavaScript syntax (or added in CoffeeScript 1.11 through 2.0, output using modern syntax):
+
+- Modules: `import`/`export`
+- Classes: `class Animal`
+- Async functions: `await someFunction()`
+- Bound/arrow functions: `=>`
+- Function default parameters: `(options = {}) ->`
+- Function splat/rest parameters: `(items...) ->`
+- Destructuring, for both arrays and objects: `[first, second] = items`, `{length} = items`
+- Object rest/spread properties: `{options..., force: yes}`, `{force, otherOptions...} = options`
+- Interpolated strings/template literals (JS backticked strings): `"Hello, #{user}!"`
+- Tagged template literals: `html"<strong>coffee</strong>"`
+- JavaScript’s `for…of` is now available as CoffeeScript’s `for…from` (we already had a `for…of`): `for n from generatorFunction()`
+
+Not all CoffeeScript features were adopted into JavaScript in 100% the same way; most notably, [default values](../#breaking-changes-default-values) in JavaScript (and also in CoffeeScript 2) are only applied when a variable is `undefined`, not `undefined` or `null` as in CoffeeScript 1; and [classes](../#breaking-changes-classes) have their own differences. See the [breaking changes](../#breaking-changes) for the fine details.
+
+In our experience, most breaking changes are edge cases that should affect very few people, like JavaScript’s [lack of an `arguments` object inside arrow functions](../#breaking-change-fat-arrow). There seem to be two breaking changes that affect a significant number of projects:
+
+- In CoffeeScript 2, “bare” `super` (calling `super` without arguments) is now no longer allowed, and one must use `super()` or `super arguments...` instead.
+- References to `this`/`@` cannot occur before a call to `super`, per the JS spec.
+
+See the [full details](../#breaking-changes-super-extends). Either the CoffeeScript compiler or your transpiler will throw errors for either of these cases, so updating your code is a matter of fixing each occurrence as the compiler errors on it, until your code compiles successfully.
+
+## Other Features
+
+Besides supporting new JavaScript features and outputting older CoffeeScript features in modern JS syntax, CoffeeScript 2 has added support for the following:
+
+- [JSX](../#jsx)
+- [Line comments](../#comments) are now output (in CoffeeScript 1 they were discarded)
+- Block comments are now allowed anywhere, enabling [static type annotations](../#type-annotations) using Flow’s comment-based syntax
+
+There are many smaller improvements as well, such as to the `coffee` command-line tool. You can read all the details in the [changelog](../#changelog) for the 2.0.0 betas.
+
+## “What About …?”
+
+A few JavaScript features have been intentionally omitted from CoffeeScript. These include `let` and `const` (and `var`), named functions and the `get` and `set` keywords. These get asked about so often that we added a section to the docs called [Unsupported ECMAScript Features](../#unsupported). CoffeeScript’s lack of equivalents for these features does not affect compatibility or interoperability with JavaScript modules or libraries.
+
+## Future Compatibility
+
+Back when CoffeeScript 1 was created, ES2015 JavaScript and transpilers like [Babel](http://babeljs.io/), [Bublé](https://buble.surge.sh/) or [Traceur Compiler](https://github.com/google/traceur-compiler) were several years away. The CoffeeScript compiler itself had to do what today’s transpilers do, converting modern features like destructuring and arrow functions into equivalent lowest-common-denominator JavaScript.
+
+But transpilers exist now, and they do their job well. With them around, there’s no need for the CoffeeScript compiler to duplicate this functionality. All the CoffeeScript compiler needs to worry about now is converting the CoffeeScript version of new syntax into the JS version of that syntax, e.g. `"Hello, #{name}!"` into `` `Hello, ${name}!` ``. This makes adding support for new JavaScript features much easier than before.
+
+Most features added by ECMA in recent years haven’t required any updates at all in CoffeeScript. New global objects, or new methods on global objects, don’t require any updates on CoffeeScript’s part to work. Some proposed future JS features _do_ involve new syntax, like [class fields](https://github.com/tc39/proposal-class-fields). We have adopted a policy of supporting new syntax only when it reaches Stage 4 in ECMA’s process, which means that the syntax is final and will be in the next ES release. On occasion we might support a _feature_ before it has reached Stage 4, but output it using equivalent non-experimental syntax instead of the newly-proposed syntax; that’s what’s happening in 2.0.0 for [object destructuring](../#splats), where our output uses the same polyfill that Babel uses. When the new syntax is finalized, we will update our output to use the final syntax.
+
+## Credits
+
+The major features of 2.0.0 would not have been possible without the following people:
+
+- [@GeoffreyBooth](https://github.com/GeoffreyBooth): Organizer of the CoffeeScript 2 effort, developer for modules; arrow functions, function default parameters and function rest parameters output using ES2015 syntax; line comments output and block comments output anywhere; block embedded JavaScript via triple backticks; improved parsing of Literate CoffeeScript; and the new docs website.
+- [@connec](https://github.com/connec): Classes; destructuring; splats/rest syntax in arrays and function calls; and computed properties all output using ES2015 syntax.
+- [@GabrielRatener](https://github.com/GabrielRatener): Async functions.
+- [@xixixao](https://github.com/xixixao): JSX.
+- [@zdenko](https://github.com/zdenko): Object rest/spread properties (object destructuring).
+- [@greghuc](https://github.com/greghuc): Tagged template literals, interpolated strings output in ES2015 syntax.
+- [@atg](https://github.com/atg): ES2015 `for…of`, supported as CoffeeScript’s `for…from`.
+- [@lydell](https://github.com/lydell) and [@jashkenas](https://github.com/jashkenas): Guidance, code reviews and feedback.
+
+
+See the full [honor roll](https://github.com/jashkenas/coffeescript/wiki/CoffeeScript-2-Honor-Roll).
+
+Thanks and we hope you enjoy CoffeeScript 2!

documentation/sections/async_functions.md

@@ -0,0 +1,9 @@
+## Async Functions
+
+ES2017’s [async functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/async_function) are supported through the `await` keyword. Like with generators, there's no need for an `async` keyword; an async function in CoffeeScript is simply a function that awaits.
+
+Similar to how `yield return` forces a generator, `await return` may be used to force a function to be async.
+
+```
+codeFor('async', true)
+```

documentation/sections/books.md

@@ -2,12 +2,12 @@
 
 There are a number of excellent resources to help you get started with CoffeeScript, some of which are freely available online.
 
-*   [The Little Book on CoffeeScript](http://arcturo.github.com/library/coffeescript/) is a brief 5-chapter introduction to CoffeeScript, written with great clarity and precision by [Alex MacCaw](http://alexmaccaw.co.uk/).
-*   [Smooth CoffeeScript](http://autotelicum.github.com/Smooth-CoffeeScript/) is a reimagination of the excellent book [Eloquent JavaScript](http://eloquentjavascript.net/), as if it had been written in CoffeeScript instead. Covers language features as well as the functional and object oriented programming styles. By [E. Hoigaard](https://github.com/autotelicum).
+*   [The Little Book on CoffeeScript](http://arcturo.github.io/library/coffeescript/) is a brief 5-chapter introduction to CoffeeScript, written with great clarity and precision by [Alex MacCaw](http://alexmaccaw.co.uk/).
+*   [Smooth CoffeeScript](http://autotelicum.github.io/Smooth-CoffeeScript/) is a reimagination of the excellent book [Eloquent JavaScript](http://eloquentjavascript.net/), as if it had been written in CoffeeScript instead. Covers language features as well as the functional and object oriented programming styles. By [E. Hoigaard](https://github.com/autotelicum).
 *   [CoffeeScript: Accelerated JavaScript Development](http://pragprog.com/book/tbcoffee/coffeescript) is [Trevor Burnham](http://trevorburnham.com/)’s thorough introduction to the language. By the end of the book, you’ll have built a fast-paced multiplayer word game, writing both the client-side and Node.js portions in CoffeeScript.
-*   [CoffeeScript Programming with jQuery, Rails, and Node.js](http://www.packtpub.com/coffeescript-programming-with-jquery-rails-nodejs/book) is a new book by Michael Erasmus that covers CoffeeScript with an eye towards real-world usage both in the browser (jQuery) and on the server-side (Rails, Node).
+*   [CoffeeScript Programming with jQuery, Rails, and Node.js](https://www.packtpub.com/web-development/coffeescript-programming-jquery-rails-and-nodejs) is a new book by Michael Erasmus that covers CoffeeScript with an eye towards real-world usage both in the browser (jQuery) and on the server-side (Rails, Node).
 *   [CoffeeScript Ristretto](https://leanpub.com/coffeescript-ristretto/read) is a deep dive into CoffeeScript’s semantics from simple functions up through closures, higher-order functions, objects, classes, combinators, and decorators. By [Reg Braithwaite](http://braythwayt.com/).
 *   [Testing with CoffeeScript](https://efendibooks.com/minibooks/testing-with-coffeescript) is a succinct and freely downloadable guide to building testable applications with CoffeeScript and Jasmine.
-*   [CoffeeScript Application Development](http://www.packtpub.com/coffeescript-application-development/book) from Packt, introduces CoffeeScript while walking through the process of building a demonstration web application. A [CoffeeScript Application Development Coookbook](https://www.packtpub.com/web-development/coffeescript-application-development-cookbook) with over 90 “recipes” is also available.
-*   [CoffeeScript in Action](http://www.manning.com/lee/) from Manning Publications, covers CoffeeScript syntax, composition techniques and application development.
-*   [CoffeeScript: Die Alternative zu JavaScript](http://www.dpunkt.de/buecher/4021/coffeescript.html) from dpunkt.verlag, is the first CoffeeScript book in Deutsch.
+*   [CoffeeScript Application Development](https://www.packtpub.com/web-development/coffeescript-application-development) from Packt, introduces CoffeeScript while walking through the process of building a demonstration web application. A [CoffeeScript Application Development Coookbook](https://www.packtpub.com/web-development/coffeescript-application-development-cookbook) with over 90 “recipes” is also available.
+*   [CoffeeScript in Action](https://www.manning.com/books/coffeescript-in-action) from Manning Publications, covers CoffeeScript syntax, composition techniques and application development.
+*   [CoffeeScript: Die Alternative zu JavaScript](https://www.dpunkt.de/buecher/4021/coffeescript.html) from dpunkt.verlag, is the first CoffeeScript book in Deutsch.

documentation/sections/breaking_change_fat_arrow.md

@@ -0,0 +1,7 @@
+### Bound (fat arrow) functions
+
+In CoffeeScript 1.x, `=>` compiled to a regular `function` but with references to `this`/`@` rewritten to use the outer scope’s `this`, or with the inner function bound to the outer scope via `.bind` (hence the name “bound function”). In CoffeeScript 2, `=>` compiles to [ES2015’s `=>`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/Arrow_functions), which behaves slightly differently. The largest difference is that in ES2015, `=>` functions lack an `arguments` object:
+
+```
+codeFor('breaking_change_fat_arrow', 'outer(1, 2)')
+```

documentation/sections/breaking_changes.md

@@ -1,105 +1,3 @@
 ## Breaking Changes From CoffeeScript 1.x to 2
 
 CoffeeScript 2 aims to output as much idiomatic ES2015+ syntax as possible with as few breaking changes from CoffeeScript 1.x as possible. Some breaking changes, unfortunately, were unavoidable.
-
-### Function parameter default values
-
-Per the [ES2015 spec regarding default parameters](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/Default_parameters), default values are only applied when a parameter value is missing or `undefined`. In CoffeeScript 1.x, the default value would be applied in those cases but also if the parameter value was `null`.
-
-```
-codeFor('breaking_change_function_parameter_default_values', 'f(null)')
-```
-
-### Bound generator functions
-
-Bound generator functions, a.k.a. generator arrow functions, [aren’t allowed in ECMAScript](http://stackoverflow.com/questions/27661306/can-i-use-es6s-arrow-function-syntax-with-generators-arrow-notation). You can write `function*` or `=>`, but not both. Therefore, CoffeeScript code like this:
-
-> ```coffee
-f = => yield this  # Throws a compiler error
-```
-
-Needs to be rewritten the old-fashioned way:
-
-```
-codeFor('breaking_change_bound_generator_function')
-```
-
-### Classes are compiled to ES2015 classes
-
-ES2015 classes and their methods have some restrictions beyond those on regular functions.
-
-Class constructors can’t be invoked without `new`:
-
-> ```coffee
-(class)()  # Throws a TypeError at runtime
-```
-
-Derived (extended) class `constructor`s cannot use `this` before calling `super`:
-
-> ```coffee
-class B extends A
-  constructor: -> this  # Throws a compiler error
-```
-
-Class methods can’t be used with `new` (uncommon):
-
-> ```coffee
-class Namespace
-  @Klass = ->
-new Namespace.Klass  # Throws a TypeError at runtime
-```
-
-### Bare `super`
-
-Due to a syntax clash with `super` with accessors, bare `super` no longer compiles to a super call forwarding all arguments.
-
-> ```coffee
-class B extends A
-  foo: -> super    # Throws a compiler error
-```
-
-Arguments can be forwarded explicitly using splats:
-
-```
-codeFor('breaking_change_super_with_arguments')
-```
-
-Or if you know that the parent function doesn’t require arguments, just call `super()`:
-
-```
-codeFor('breaking_change_super_without_arguments')
-```
-
-### `super` in non-class methods
-
-In CoffeeScript 1.x it is possible to use `super` in more than just class methods, such as in manually prototype-assigned functions:
-
-> ```coffee
-A = ->
-B = ->
-B extends A
-B.prototype.foo = -> super arguments...  # Throws a compiler error
-```
-
-Due to the switch to ES2015 `super`, this is no longer supported. The above case could be refactored to:
-
-```
-codeFor('breaking_change_super_in_non-class_methods_refactor_with_apply')
-```
-
-or
-
-```
-codeFor('breaking_change_super_in_non-class_methods_refactor_with_class')
-```
-
-### Dynamic class keys exclude executable class scope
-
-Due to the hoisting required to compile to ES2015 classes, dynamic keys in class methods can’t use values from the executable class body unless the methods are assigned in prototype style.
-
-> ```coffee
-class A
-  name = 'method'
-  "#{name}": ->   # This method will be named 'undefined'
-  @::[name] = ->  # This will work; assigns to `A.prototype.method`
-```

documentation/sections/breaking_changes_argument_parsing_and_shebang_lines.md

@@ -0,0 +1,34 @@
+### Argument parsing and shebang (`#!`) lines
+
+In CoffeeScript 1.x, `--` was required after the path and filename of the script to be run, but before any arguments passed to that script. This convention is now deprecated. So instead of:
+
+```bash
+coffee [options] path/to/script.coffee -- [args]
+```
+
+Now you would just type:
+
+```bash
+coffee [options] path/to/script.coffee [args]
+```
+
+The deprecated version will still work, but it will print a warning before running the script.
+
+On non-Windows platforms, a `.coffee` file can be made executable by adding a shebang (`#!`) line at the top of the file and marking the file as executable. For example:
+
+```coffee
+#!/usr/bin/env coffee
+
+x = 2 + 2
+console.log x
+```
+
+If this were saved as `executable.coffee`, it could be made executable and run:
+
+```bash
+▶ chmod +x ./executable.coffee
+▶ ./executable.coffee
+4
+```
+
+In CoffeeScript 1.x, this used to fail when trying to pass arguments to the script. Some users on OS X worked around the problem by using `#!/usr/bin/env coffee --` as the first line of the file. That didn’t work on Linux, however, which cannot parse shebang lines with more than a single argument. While such scripts will still run on OS X, CoffeeScript will now display a warning before compiling or evaluating files that begin with a too-long shebang line. Now that CoffeeScript 2 supports passing arguments without needing `--`, we recommend simply changing the shebang lines in such scripts to just `#!/usr/bin/env coffee`.

documentation/sections/breaking_changes_bound_generator_functions.md

@@ -0,0 +1,14 @@
+### Bound generator functions
+
+Bound generator functions, a.k.a. generator arrow functions, [aren’t allowed in ECMAScript](http://stackoverflow.com/questions/27661306/can-i-use-es6s-arrow-function-syntax-with-generators-arrow-notation). You can write `function*` or `=>`, but not both. Therefore, CoffeeScript code like this:
+
+```coffee
+f = => yield this
+# Throws a compiler error
+```
+
+Needs to be rewritten the old-fashioned way:
+
+```
+codeFor('breaking_change_bound_generator_function')
+```

documentation/sections/breaking_changes_classes.md

@@ -0,0 +1,48 @@
+### Classes are compiled to ES2015 classes
+
+ES2015 classes and their methods have some restrictions beyond those on regular functions.
+
+Class constructors can’t be invoked without `new`:
+
+```coffee
+(class)()
+# Throws a TypeError at runtime
+```
+
+Derived (extended) class `constructor`s cannot use `this` before calling `super`:
+
+```coffee
+class B extends A
+  constructor: -> this  # Throws a compiler error
+```
+
+ES2015 classes don’t allow bound (fat arrow) methods. The CoffeeScript compiler goes through some contortions to preserve support for them, but one thing that can’t be accommodated is calling a bound method before it is bound:
+
+```coffee
+class Base
+  constructor: ->
+    @onClick()      # This works
+    clickHandler = @onClick
+    clickHandler()  # This throws a runtime error
+
+class Component extends Base
+  onClick: =>
+    console.log 'Clicked!', @
+```
+
+Class methods can’t be used with `new` (uncommon):
+
+```coffee
+class Namespace
+  @Klass = ->
+new Namespace.Klass  # Throws a TypeError at runtime
+```
+
+Due to the hoisting required to compile to ES2015 classes, dynamic keys in class methods can’t use values from the executable class body unless the methods are assigned in prototype style.
+
+```coffee
+class A
+  name = 'method'
+  "#{name}": ->   # This method will be named 'undefined'
+  @::[name] = ->  # This will work; assigns to `A.prototype.method`
+```

documentation/sections/breaking_changes_default_values.md

@@ -0,0 +1,11 @@
+### Default values for function parameters and destructured elements
+
+Per the [ES2015 spec regarding function default parameters](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/Default_parameters) and [destructuring default values](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Destructuring_assignment#Default_values), default values are only applied when a value is missing or `undefined`. In CoffeeScript 1.x, the default value would be applied in those cases but also if the  value was `null`.
+
+```
+codeFor('breaking_change_function_parameter_default_values', 'f(null)')
+```
+
+```
+codeFor('breaking_change_destructuring_default_values', 'a')
+```

documentation/sections/breaking_changes_jsx_and_the_less_than_and_greater_than_operators.md

@@ -0,0 +1,3 @@
+### JSX and the `<` and `>` operators
+
+With the addition of [JSX](#jsx), the `<` and `>` characters serve as both the “less than” and “greater than” operators and as the delimiters for XML tags, like `<div>`. For best results, in general you should always wrap the operators in spaces to distinguish them from XML tags: `i < len`, not `i<len`. The compiler tries to be forgiving when it can be sure what you intend, but always putting spaces around the “less than” and “greater than” operators will remove ambiguity.

documentation/sections/breaking_changes_literate_coffeescript.md

@@ -0,0 +1,7 @@
+### Literate CoffeeScript parsing
+
+CoffeeScript 2’s parsing of Literate CoffeeScript has been refactored to now be more careful about not treating indented lists as code blocks; but this means that all code blocks (unless they are to be interpreted as comments) must be separated by at least one blank line from lists.
+
+Code blocks should also now maintain a consistent indentation level—so an indentation of one tab (or whatever you consider to be a tab stop, like 2 spaces or 4 spaces) should be treated as your code’s “left margin,” with all code in the file relative to that column.
+
+Code blocks that you want to be part of the commentary, and not executed, must have at least one line (ideally the first line of the block) completely unindented.

documentation/sections/breaking_changes_super_extends.md

@@ -0,0 +1,43 @@
+### `super` and `extends`
+
+Due to a syntax clash with `super` with accessors, “bare” `super` (the keyword `super` without parentheses) no longer compiles to a super call forwarding all arguments.
+
+```coffee
+class B extends A
+  foo: -> super
+  # Throws a compiler error
+```
+
+Arguments can be forwarded explicitly using splats:
+
+```
+codeFor('breaking_change_super_with_arguments')
+```
+
+Or if you know that the parent function doesn’t require arguments, just call `super()`:
+
+```
+codeFor('breaking_change_super_without_arguments')
+```
+
+CoffeeScript 1.x allowed the `extends` keyword to set up prototypal inheritance between functions, and `super` could be used manually prototype-assigned functions:
+
+```coffee
+A = ->
+B = ->
+B extends A
+B.prototype.foo = -> super arguments...
+# Last two lines each throw compiler errors in CoffeeScript 2
+```
+
+Due to the switch to ES2015 `extends` and `super`, using these keywords for prototypal functions are no longer supported. The above case could be refactored to:
+
+```
+codeFor('breaking_change_super_in_non-class_methods_refactor_with_apply')
+```
+
+or
+
+```
+codeFor('breaking_change_super_in_non-class_methods_refactor_with_class')
+```

documentation/sections/cake.md

@@ -8,4 +8,4 @@ Task definitions are written in CoffeeScript, so you can put arbitrary code in y
 codeFor('cake_tasks')
 ```
 
-If you need to invoke one task before another — for example, running `build` before `test`, you can use the `invoke` function: `invoke 'build'`. Cake tasks are a minimal way to expose your CoffeeScript functions to the command line, so [don’t expect any fanciness built-in](v<%= majorVersion %>/annotated-source/cake.html). If you need dependencies, or async callbacks, it’s best to put them in your code itself — not the cake task.
+If you need to invoke one task before another — for example, running `build` before `test`, you can use the `invoke` function: `invoke 'build'`. Cake tasks are a minimal way to expose your CoffeeScript functions to the command line, so [don’t expect any fanciness built-in](/v<%= majorVersion %>/annotated-source/cake.html). If you need dependencies, or async callbacks, it’s best to put them in your code itself — not the cake task.

documentation/sections/chaining.md

@@ -0,0 +1,7 @@
+## Chaining Function Calls
+
+Leading `.` closes all open calls, allowing for simpler chaining syntax.
+
+```
+codeFor('chaining')
+```

documentation/sections/changelog.md

@@ -1,4 +1,109 @@
-## Change Log
+## Changelog
+
+```
+releaseHeader('2017-09-17', '2.0.0', '2.0.0-beta5')
+```
+
+*   Added `--transpile` flag or `transpile` Node API option to tell the CoffeeScript compiler to pipe its output through Babel before saving or returning it; see [Transpilation](#transpilation). Also changed the `-t` short flag to refer to `--transpile` instead of `--tokens`.
+*   Always populate source maps’ `sourcesContent` property.
+*   Bugfixes for destructuring and for comments in JSX.
+*   _Note that these are only the changes between 2.0.0-beta5 and 2.0.0. See below for all changes since 1.x._
+
+```
+releaseHeader('2017-09-02', '2.0.0-beta5', '2.0.0-beta4')
+```
+
+*   Node 6 is now supported, and we will try to maintain that as the minimum required version for CoffeeScript 2 via the `coffee` command or Node API. Older versions of Node, or non-evergreen browsers, can compile via the [browser compiler](./browser-compiler/coffeescript.js).
+*   The command line `--output` flag now allows you to specify an output filename, not just an output folder.
+*   The command line `--require` flag now properly handles filenames or module names that are invalid identifiers (like an NPM module with a hyphen in the name).
+*   `Object.assign`, output when object destructuring is used, is polyfilled using the same polyfill that Babel outputs. This means that polyfills shouldn’t be required unless support for Internet Explorer 8 or below is desired (or your own code uses a feature that requires a polyfill). See [ES2015+ Output](#es2015plus-output).
+*   A string or JSX interpolation that contains only a comment (`"a#{### comment ###}b"` or `<div>{### comment ###}</div>`) is now output (`` `a${/* comment */}b` ``)
+*   Interpolated strings (ES2015 template literals) that contain quotation marks no longer have the quotation marks escaped: `` `say "${message}"` ``
+*   It is now possible to chain after a function literal (for example, to define a function and then call `.call` on it).
+*   The results of the async tests are included in the output when you run `cake test`.
+*   Bugfixes for object destructuring; expansions in function parameters; generated reference variables in function parameters; chained functions after `do`; splats after existential operator soaks in arrays (`[a?.b...]`); trailing `if` with splat in arrays or function parameters (`[a if b...]`); attempting to `throw` an `if`, `for`, `switch`, `while` or other invalid construct.
+*   Bugfixes for syntactical edge cases: semicolons after `=` and other “mid-expression” tokens; spaces after `::`; and scripts that begin with `:` or `*`.
+*   Bugfixes for source maps generated via the Node API; and stack trace line numbers when compiling CoffeeScript via the Node API from within a `.coffee` file.
+
+```
+releaseHeader('2017-08-03', '2.0.0-beta4', '2.0.0-beta3')
+```
+
+*   This release includes [all the changes from 1.12.6 to 1.12.7](#1.12.7).
+*   [Line comments](#comments) (starting with `#`) are now output in the generated JavaScript.
+*   [Block comments](#comments) (delimited by `###`) are now allowed anywhere, including inline where they previously weren’t possible. This provides support for [static type annotations](#type-annotations) using Flow’s comments-based syntax.
+*   Spread syntax (`...` for objects) is now supported in JSX tags: `<div {props...} />`.
+*   Argument parsing for scripts run via `coffee` is improved. See [breaking changes](#breaking-changes-argument-parsing-and-shebang-lines).
+*   CLI: Propagate `SIGINT` and `SIGTERM` signals when node is forked.
+*   `await` in the REPL is now allowed without requiring a wrapper function.
+*   `do super` is now allowed, and other accesses of `super` like `super.x.y` or `super['x'].y` now work.
+*   Splat/spread syntax triple dots are now allowed on either the left or the right (so `props...` or `...props` are both valid).
+*   Tagged template literals are recognized as callable functions.
+*   Bugfixes for object spread syntax in nested properties.
+*   Bugfixes for destructured function parameter default values.
+
+```
+releaseHeader('2017-07-16', '1.12.7', '1.12.6')
+```
+
+*   Fix regressions in 1.12.6 related to chained function calls and indented `return` and `throw` arguments.
+*   The REPL no longer warns about assigning to `_`.
+
+```
+releaseHeader('2017-06-30', '2.0.0-beta3', '2.0.0-beta2')
+```
+
+*   [JSX](#jsx) is now supported.
+*   [Object rest/spread properties](#object-spread) are now supported.
+*   Bound (fat arrow) methods are once again supported in classes; though an error will be thrown if you attempt to call the method before it is bound. See [breaking changes for classes](#breaking-changes-classes).
+*   The REPL no longer warns about assigning to `_`.
+*   Bugfixes for destructured nested default values and issues related to chaining or continuing expressions across multiple lines.
+
+
+```
+releaseHeader('2017-05-16', '2.0.0-beta2', '2.0.0-beta1')
+```
+
+*   This release includes [all the changes from 1.12.5 to 1.12.6](#1.12.6).
+*   Bound (fat arrow) methods in classes must be declared in the class constructor, after `super()` if the class is extending a parent class. See [breaking changes for classes](#breaking-changes-classes).
+*   All unnecessary utility helper functions have been removed, including the polyfills for `indexOf` and `bind`.
+*   The `extends` keyword now only works in the context of classes; it cannot be used to extend a function prototype. See [breaking changes for `extends`](#breaking-changes-super-extends).
+*   Literate CoffeeScript is now parsed entirely based on indentation, similar to the 1.x implementation; there is no longer a dependency for parsing Markdown. See [breaking changes for Literate CoffeeScript parsing](#breaking-changes-literate-coffeescript).
+*   JavaScript reserved words used as properties are no longer wrapped in quotes.
+*   `require('coffeescript')` should now work in non-Node environments such as the builds created by Webpack or Browserify. This provides a more convenient way to include the browser compiler in builds intending to run in a browser environment.
+*   Unreachable `break` statements are no longer added after `switch` cases that `throw` exceptions.
+*   The browser compiler is now compiled using Babili and transpiled down to Babel’s `env` preset (should be safe for use in all browsers in current use, not just evergreen versions).
+*   Calling functions `@get` or `@set` no longer throws an error about required parentheses. (Bare `get` or `set`, not attached to an object or `@`, [still intentionally throws a compiler error](#unsupported-get-set).)
+*   If `$XDG_CACHE_HOME` is set, the REPL `.coffee_history` file is saved there.
+
+```
+releaseHeader('2017-05-15', '1.12.6', '1.12.5')
+```
+
+*   The `return` and `export` keywords can now accept implicit objects (defined by indentation, without needing braces).
+*   Support Unicode code point escapes (e.g. `\u{1F4A9}`).
+*   The `coffee` command now first looks to see if CoffeeScript is installed under `node_modules` in the current folder, and executes the `coffee` binary there if so; or otherwise it runs the globally installed one. This allows you to have one version of CoffeeScript installed globally and a different one installed locally for a particular project. (Likewise for the `cake` command.)
+*   Bugfixes for chained function calls not closing implicit objects or ternaries.
+*   Bugfixes for incorrect code generated by the `?` operator within a termary `if` statement.
+*   Fixed some tests, and failing tests now result in a nonzero exit code.
+
+```
+releaseHeader('2017-04-14', '2.0.0-beta1', '2.0.0-alpha1')
+```
+
+*   Initial beta release of CoffeeScript 2. No further breaking changes are anticipated.
+*   Destructured objects and arrays now output using ES2015+ syntax whenever possible.
+*   Literate CoffeeScript now has much better support for parsing Markdown, thanks to using [Markdown-It](https://github.com/markdown-it/markdown-it) to detect Markdown sections rather than just looking at indentation.
+*   Calling a function named `get` or `set` now requires parentheses, to disambiguate from the `get` or `set` keywords (which are [disallowed](#unsupported-get-set)).
+*   The compiler now requires Node 7.6+, the first version of Node to support asynchronous functions without requiring a flag.
+
+```
+releaseHeader('2017-04-10', '1.12.5', '1.12.4')
+```
+
+*   Better handling of `default`, `from`, `as` and `*` within `import` and `export` statements. You can now import or export a member named `default` and the compiler won’t interpret it as the `default` keyword.
+*   Fixed a bug where invalid octal escape sequences weren’t throwing errors in the compiler.
+
 
 ```
 releaseHeader('2017-02-21', '2.0.0-alpha1', '1.12.4')
@@ -41,7 +146,7 @@ releaseHeader('2016-12-16', '1.12.2', '1.12.1')
 *   The browser compiler can once again be built unminified via `MINIFY=false cake build:browser`.
 *   The error-prone patched version of `Error.prepareStackTrace` has been removed.
 *   Command completion in the REPL (pressing tab to get suggestions) has been fixed for Node 6.9.1+.
-*   The [browser-based tests](v<%= majorVersion %>/test.html) now include all the tests as the Node-based version.
+*   The [browser-based tests](/v<%= majorVersion %>/test.html) now include all the tests as the Node-based version.
 
 ```
 releaseHeader('2016-12-07', '1.12.1', '1.12.0')
@@ -58,7 +163,7 @@ releaseHeader('2016-12-04', '1.12.0', '1.11.1')
 *   CoffeeScript now provides a [`for…from`](#generator-iteration) syntax for outputting ES2015 [`for…of`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/for...of). (Sorry they couldn’t match, but we came up with `for…of` first for something else.) This allows iterating over generators or any other iterable object. Note that using `for…from` in your code makes you responsible for ensuring that either your runtime supports `for…of` or that you transpile the output JavaScript further to a version your target runtime(s) support.
 *   Triple backticks (`` ```​``) allow the creation of embedded JavaScript blocks where escaping single backticks is not required, which should improve interoperability with ES2015 template literals and with Markdown.
 *   Within single-backtick embedded JavaScript, backticks can now be escaped via `` \`​``.
-*   The browser tests now run in the browser again, and are accessible [here](v<%= majorVersion %>/test.html) if you would like to test your browser.
+*   The browser tests now run in the browser again, and are accessible [here](/v<%= majorVersion %>/test.html) if you would like to test your browser.
 *   CoffeeScript-only keywords in ES2015 `import`s and `export`s are now ignored.
 *   The compiler now throws an error on trying to export an anonymous class.
 *   Bugfixes related to tokens and location data, for better source maps and improved compatibility with downstream tools.
@@ -188,11 +293,6 @@ releaseHeader('2014-01-28', '1.7.0', '1.6.3')
 *   When requiring CoffeeScript files in Node you must now explicitly register the compiler. This can be done with `require 'coffeescript/register'` or `CoffeeScript.register()`. Also for configuration such as Mocha’s, use **coffeescript/register**.
 *   Improved error messages, source maps and stack traces. Source maps now use the updated `//#` syntax.
 *   Leading `.` now closes all open calls, allowing for simpler chaining syntax.
-
-```
-codeFor('chaining')
-```
-
 *   Added `**`, `//` and `%%` operators and `...` expansion in parameter lists and destructuring expressions.
 *   Multiline strings are now joined by a single space and ignore all indentation. A backslash at the end of a line can denote the amount of whitespace between lines, in both strings and heredocs. Backslashes correctly escape whitespace in block regexes.
 *   Closing brackets can now be indented and therefore no longer cause unexpected error.
@@ -223,7 +323,7 @@ releaseHeader('2013-03-18', '1.6.2', '1.6.1')
 releaseHeader('2013-03-05', '1.6.1', '1.5.0')
 ```
 
-*   First release of [source maps](#source-maps). Pass the `--map` flag to the compiler, and off you go. Direct all your thanks over to [Jason Walton](http://github.com/jwalton).
+*   First release of [source maps](#source-maps). Pass the `--map` flag to the compiler, and off you go. Direct all your thanks over to [Jason Walton](https://github.com/jwalton).
 *   Fixed a 1.5.0 regression with multiple implicit calls against an indented implicit object. Combinations of implicit function calls and implicit objects should generally be parsed better now — but it still isn’t good _style_ to nest them too heavily.
 *   `.coffee.md` is now also supported as a Literate CoffeeScript file extension, for existing tooling. `.litcoffee` remains the canonical one.
 *   Several minor fixes surrounding member properties, bound methods and `super` in class declarations.
@@ -330,7 +430,7 @@ The REPL now properly formats stacktraces, and stays alive through asynchronous
 releaseHeader('2010-11-21', '0.9.5', '0.9.4')
 ```
 
-0.9.5 should be considered the first release candidate for CoffeeScript 1.0. There have been a large number of internal changes since the previous release, many contributed from **satyr**’s [Coco](http://github.com/satyr/coco) dialect of CoffeeScript. Heregexes (extended regexes) were added. Functions can now have default arguments. Class bodies are now executable code. Improved syntax errors for invalid CoffeeScript. `undefined` now works like `null`, and cannot be assigned a new value. There was a precedence change with respect to single-line comprehensions: `result = i for i in list`
+0.9.5 should be considered the first release candidate for CoffeeScript 1.0. There have been a large number of internal changes since the previous release, many contributed from **satyr**’s [Coco](https://github.com/satyr/coco) dialect of CoffeeScript. Heregexes (extended regexes) were added. Functions can now have default arguments. Class bodies are now executable code. Improved syntax errors for invalid CoffeeScript. `undefined` now works like `null`, and cannot be assigned a new value. There was a precedence change with respect to single-line comprehensions: `result = i for i in list`
 used to parse as `result = (i for i in list)` by default … it now parses as
 `(result = i) for i in list`.
 
@@ -410,7 +510,7 @@ Interpolation can now be used within regular expressions and heredocs, as well a
 releaseHeader('2010-03-08', '0.5.5', '0.5.4')
 ```
 
-String interpolation, contributed by [Stan Angeloff](http://github.com/StanAngeloff). Since `--run` has been the default since **0.5.3**, updating `--stdio` and `--eval` to run by default, pass `--compile` as well if you’d like to print the result.
+String interpolation, contributed by [Stan Angeloff](https://github.com/StanAngeloff). Since `--run` has been the default since **0.5.3**, updating `--stdio` and `--eval` to run by default, pass `--compile` as well if you’d like to print the result.
 
 ```
 releaseHeader('2010-03-03', '0.5.4', '0.5.3')
@@ -429,7 +529,7 @@ releaseHeader('2010-02-25', '0.5.2', '0.5.1')
 ```
 
 Added a compressed version of the compiler for inclusion in web pages as
-`v<%= majorVersion %>/browser-compiler/coffeescript.js`. It’ll automatically run any script tags with type `text/coffeescript` for you. Added a `--stdio` option to the `coffee` command, for piped-in compiles.
+`/v<%= majorVersion %>/browser-compiler/coffeescript.js`. It’ll automatically run any script tags with type `text/coffeescript` for you. Added a `--stdio` option to the `coffee` command, for piped-in compiles.
 
 ```
 releaseHeader('2010-02-24', '0.5.1', '0.5.0')
@@ -506,7 +606,7 @@ Arguments objects are now converted into real arrays when referenced.
 releaseHeader('2010-01-05', '0.2.0', '0.1.6')
 ```
 
-Major release. Significant whitespace. Better statement-to-expression conversion. Splats. Splice literals. Object comprehensions. Blocks. The existential operator. Many thanks to all the folks who posted issues, with special thanks to [Liam O’Connor-Davis](http://github.com/liamoc) for whitespace and expression help.
+Major release. Significant whitespace. Better statement-to-expression conversion. Splats. Splice literals. Object comprehensions. Blocks. The existential operator. Many thanks to all the folks who posted issues, with special thanks to [Liam O’Connor-Davis](https://github.com/liamoc) for whitespace and expression help.
 
 ```
 releaseHeader('2009-12-27', '0.1.6', '0.1.5')
@@ -524,7 +624,7 @@ Array slice literals and array comprehensions can now both take Ruby-style range
 releaseHeader('2009-12-25', '0.1.4', '0.1.3')
 ```
 
-The official CoffeeScript extension is now `.coffee` instead of `.cs`, which properly belongs to [C#](http://en.wikipedia.org/wiki/C_Sharp_(programming_language)). Due to popular demand, you can now also use `=` to assign. Unlike JavaScript, `=` can also be used within object literals, interchangeably with `:`. Made a grammatical fix for chained function calls like `func(1)(2)(3)(4)`. Inheritance and super no longer use `__proto__`, so they should be IE-compatible now.
+The official CoffeeScript extension is now `.coffee` instead of `.cs`, which properly belongs to [C#](https://en.wikipedia.org/wiki/C_Sharp_(programming_language)). Due to popular demand, you can now also use `=` to assign. Unlike JavaScript, `=` can also be used within object literals, interchangeably with `:`. Made a grammatical fix for chained function calls like `func(1)(2)(3)(4)`. Inheritance and super no longer use `__proto__`, so they should be IE-compatible now.
 
 ```
 releaseHeader('2009-12-25', '0.1.3', '0.1.2')

documentation/sections/coffeescript_2.md

@@ -1,5 +1 @@
 ## CoffeeScript 2
-
-CoffeeScript 2 generates JavaScript that uses the latest ES2015+ features. It is your responsibility to ensure that your target JavaScript runtime(s) support all these features, or that you pass the output through another transpiler like [Babel](http://babeljs.io/), [Rollup](https://github.com/rollup/rollup) or [Traceur Compiler](https://github.com/google/traceur-compiler). In general, [CoffeeScript 2’s output is fully supported by Node.js 7+](http://node.green/), although async functions require the `--harmony` or `--harmony-async-await` flags; and ES2015 modules require an additional transpiler. Output JavaScript intended for browsers generally requires additional transpilation.
-
-If you’re looking for a single tool that takes CoffeeScript input and generates JavaScript output that runs in any JavaScript runtime, assuming you opt out of certain newer features, stick to the [CoffeeScript 1.x branch](v1/). CoffeeScript 2 [breaks compatibility](#breaking-changes) with certain CoffeeScript 1.x features in order to conform with the ES2015+ specifications, and generate more idiomatic output (a CoffeeScript `=>` becomes an ES `=>`; a CoffeeScript `class` becomes an ES `class`; and so on).

documentation/sections/command_line_interface.md

@@ -0,0 +1,40 @@
+### Command Line
+
+Once installed, you should have access to the `coffee` command, which can execute scripts, compile `.coffee` files into `.js`, and provide an interactive REPL. The `coffee` command takes the following options:
+
+| Option | Description |
+| --- | --- |
+| `-c, --compile` | Compile a `.coffee` script into a `.js` JavaScript file of the same name. |
+| `-t, --transpile` | Pipe the CoffeeScript compiler’s output through Babel before saving or running the generated JavaScript. Requires `babel-core` to be installed, and options to pass to Babel in a `.babelrc` file or a `package.json` with a `babel` key in the path of the file or folder to be compiled. See [Transpilation](#transpilation).
+| `-m, --map` | Generate source maps alongside the compiled JavaScript files. Adds `sourceMappingURL` directives to the JavaScript as well. |
+| `-M, --inline-map` | Just like `--map`, but include the source map directly in the compiled JavaScript files, rather than in a separate file. |
+| `-i, --interactive` | Launch an interactive CoffeeScript session to try short snippets. Identical to calling `coffee` with no arguments. |
+| `-o, --output [DIR]` | Write out all compiled JavaScript files into the specified directory. Use in conjunction with `--compile` or `--watch`. |
+| `-w, --watch` | Watch files for changes, rerunning the specified command when any file is updated. |
+| `-p, --print` | Instead of writing out the JavaScript as a file, print it directly to **stdout**. |
+| `-s, --stdio` | Pipe in CoffeeScript to STDIN and get back JavaScript over STDOUT. Good for use with processes written in other languages. An example:<br>`cat src/cake.coffee | coffee -sc` |
+| `-l, --literate` | Parses the code as Literate CoffeeScript. You only need to specify this when passing in code directly over **stdio**, or using some sort of extension-less file name. |
+| `-e, --eval` | Compile and print a little snippet of CoffeeScript directly from the command line. For example:<br>`coffee -e "console.log num for num in [10..1]"` |
+| `-r, --require [MODULE]`&emsp; | `require()` the given module before starting the REPL or evaluating the code given with the `--eval` flag. |
+| `-b, --bare` | Compile the JavaScript without the [top-level function safety wrapper](#lexical-scope). |
+| `--no-header` | Suppress the “Generated by CoffeeScript” header. |
+| `--nodejs` | The `node` executable has some useful options you can set, such as `--debug`, `--debug-brk`, `--max-stack-size`, and `--expose-gc`. Use this flag to forward options directly to Node.js. To pass multiple flags, use `--nodejs` multiple times. |
+| `--tokens` | Instead of parsing the CoffeeScript, just lex it, and print out the token stream. Used for debugging the compiler. |
+| `-n, --nodes` | Instead of compiling the CoffeeScript, just lex and parse it, and print out the parse tree. Used for debugging the compiler. |
+
+#### Examples:
+
+*   Compile a directory tree of `.coffee` files in `src` into a parallel tree of `.js` files in `lib`:<br>
+    `coffee --compile --output lib/ src/`
+*   Watch a file for changes, and recompile it every time the file is saved:<br>
+    `coffee --watch --compile experimental.coffee`
+*   Concatenate a list of files into a single script:<br>
+    `coffee --join project.js --compile src/*.coffee`
+*   Print out the compiled JS from a one-liner:<br>
+    `coffee -bpe "alert i for i in [0..10]"`
+*   All together now, watch and recompile an entire project as you work on it:<br>
+    `coffee -o lib/ -cw src/`
+*   Start the CoffeeScript REPL (`Ctrl-D` to exit, `Ctrl-V`for multi-line):<br>
+    `coffee`
+
+To use `--transpile`, see [Transpilation](#transpilation).

documentation/sections/comments.md

@@ -1,13 +1,9 @@
 ## Comments
 
-In CoffeeScript, comments are denoted by the `#` character. Everything from a `#` to the end of the line is ignored by the compiler, and will be excluded from the JavaScript output.
+In CoffeeScript, comments are denoted by the `#` character to the end of a line, or from `###` to the next appearance of `###`. Comments are ignored by the compiler, though the compiler makes its best effort at reinserting your comments into the output JavaScript after compilation.
 
 ```
 codeFor('comment')
 ```
 
-Sometimes you’d like to pass a block comment through to the generated JavaScript. For example, when you need to embed a licensing header at the top of a file. Block comments, which mirror the syntax for block strings, are preserved in the generated output.
-
-```
-codeFor('block_comment')
-```
+Inline `###` comments make [type annotations](#type-annotations) possible.

documentation/sections/comparisons.md

@@ -1,6 +1,6 @@
 ## Chained Comparisons
 
-CoffeeScript borrows [chained comparisons](http://docs.python.org/reference/expressions.html#notin) from Python — making it easy to test if a value falls within a certain range.
+CoffeeScript borrows [chained comparisons](https://docs.python.org/3/reference/expressions.html#not-in) from Python — making it easy to test if a value falls within a certain range.
 
 ```
 codeFor('comparisons', 'healthy')

documentation/sections/compatibility.md

@@ -0,0 +1,5 @@
+### Compatibility
+
+With the exception of [modules](#modules) (`import` and `export` statements) and [JSX](#jsx), all the modern JavaScript features that CoffeeScript supports can run natively in Node 7.6+, meaning that Node can run CoffeeScript’s output without any further processing required. You can [run the tests in your browser](test.html) to see if your browser can do the same. For older browsers or older versions of Node, however, [transpilation](#transpilation) is required.
+
+Support for modern JavaScript syntax is important to ensure compatibility with frameworks that assume modern features. Now that CoffeeScript compiles classes to the `class` keyword, it’s possible to `extend` a JavaScript class; that wasn’t possible in CoffeeScript 1. Parity in how language features work is also important on its own; CoffeeScript “is just JavaScript,” and so things like [function parameter default values](#breaking-changes-default-values) should behave the same in CoffeeScript as in JavaScript. Some such features behave slightly differently in JavaScript than they did in CoffeeScript 1; in such cases we are conforming with the JavaScript spec, and we’ve documented the differences as [breaking changes](#breaking-changes).

documentation/sections/conditionals.md

@@ -1,8 +1,8 @@
 ## If, Else, Unless, and Conditional Assignment
 
-**If/else** statements can be written without the use of parentheses and curly brackets. As with functions and other block expressions, multi-line conditionals are delimited by indentation. There’s also a handy postfix form, with the `if` or `unless` at the end.
+`if`/`else` statements can be written without the use of parentheses and curly brackets. As with functions and other block expressions, multi-line conditionals are delimited by indentation. There’s also a handy postfix form, with the `if` or `unless` at the end.
 
-CoffeeScript can compile **if** statements into JavaScript expressions, using the ternary operator when possible, and closure wrapping otherwise. There is no explicit ternary statement in CoffeeScript — you simply use a regular **if** statement on a single line.
+CoffeeScript can compile `if` statements into JavaScript expressions, using the ternary operator when possible, and closure wrapping otherwise. There is no explicit ternary statement in CoffeeScript — you simply use a regular `if` statement on a single line.
 
 ```
 codeFor('conditionals')

documentation/sections/contributing.md

@@ -0,0 +1,16 @@
+## Contributing
+
+Contributions are welcome! Feel free to fork [the repo](https://github.com/jashkenas/coffeescript) and submit a pull request.
+
+[Some features of ECMAScript are intentionally unsupported](#unsupported). Please review both the open and closed [issues on GitHub](https://github.com/jashkenas/coffeescript/issues) to see if the feature you’re looking for has already been discussed. As a general rule, we don’t support ECMAScript syntax for features that aren’t yet finalized (at Stage 4 in the proposal approval process).
+
+For more resources on adding to CoffeeScript, please see [the Wiki](https://github.com/jashkenas/coffeescript/wiki/%5BHowto%5D-Hacking-on-the-CoffeeScript-Compiler), especially [How The Parser Works](https://github.com/jashkenas/coffeescript/wiki/%5BHowTo%5D-How-parsing-works).
+
+There are several things you can do to increase your odds of having your pull request accepted:
+
+  * Create tests! Any pull request should probably include basic tests to verify you didn’t break anything, or future changes won’t break your code.
+  * Follow the style of the rest of the CoffeeScript codebase.
+  * Ensure any ECMAScript syntax is mature (at Stage 4), with no further potential changes.
+  * Add only features that have broad utility, rather than a feature aimed at a specific use case or framework.
+
+Of course, it’s entirely possible that you have a great addition, but it doesn’t fit within these constraints. Feel free to roll your own solution; you will have [plenty of company](https://github.com/jashkenas/coffeescript/wiki/In-The-Wild).

documentation/sections/destructuring.md

@@ -36,4 +36,4 @@ Destructuring assignment is also useful when combined with class constructors to
 codeFor('constructor_destructuring', 'tim.age + " " + tim.height')
 ```
 
-The above example also demonstrates that if properties are missing in the destructured object or array, you can, just like in JavaScript, provide defaults. The difference with JavaScript is that CoffeeScript, as always, treats both null and undefined the same.
+The above example also demonstrates that if properties are missing in the destructured object or array, you can, just like in JavaScript, provide defaults. Note though that unlike with the existential operator, the default is only applied with the value is missing or `undefined`—[passing `null` will set a value of `null`](#breaking-changes-default-values), not the default.

documentation/sections/examples.md

@@ -2,10 +2,9 @@
 
 The [best list of open-source CoffeeScript examples](https://github.com/trending?l=coffeescript&since=monthly) can be found on GitHub. But just to throw out a few more:
 
-*   **GitHub**’s [Hubot](http://hubot.github.com/), a friendly IRC robot that can perform any number of useful and useless tasks.
+*   **GitHub**’s [Hubot](https://hubot.github.com/), a friendly IRC robot that can perform any number of useful and useless tasks.
 *   **sstephenson**’s [Pow](http://pow.cx/), a zero-configuration Rack server, with comprehensive annotated source.
 *   **technoweenie**’s [Coffee-Resque](https://github.com/technoweenie/coffee-resque), a port of [Resque](https://github.com/defunkt/resque) for Node.js.
-*   **assaf**’s [Zombie.js](http://zombie.labnotes.org/), a headless, full-stack, faux-browser testing library for Node.js.
 *   **stephank**’s [Orona](https://github.com/stephank/orona), a remake of the Bolo tank game for modern browsers.
 *   **GitHub**’s [Atom](https://atom.io/), a hackable text editor built on web technologies.
 *   **Basecamp**’s [Trix](https://trix-editor.org/), a rich text editor for web apps.

documentation/sections/existential_operator.md

@@ -1,17 +1,37 @@
 ## The Existential Operator
 
-It’s a little difficult to check for the existence of a variable in JavaScript. `if (variable) …` comes close, but fails for zero, the empty string, and false. CoffeeScript’s existential operator `?` returns true unless a variable is **null** or **undefined**, which makes it analogous to Ruby’s `nil?`
+It’s a little difficult to check for the existence of a variable in JavaScript. `if (variable) …` comes close, but fails for zero, the empty string, and false (to name just the most common cases). CoffeeScript’s existential operator `?` returns true unless a variable is `null` or `undefined` or undeclared, which makes it analogous to Ruby’s `nil?`.
 
-It can also be used for safer conditional assignment than `||=` provides, for cases where you may be handling numbers or strings.
+It can also be used for safer conditional assignment than the JavaScript pattern `a = a || value` provides, for cases where you may be handling numbers or strings.
 
 ```
 codeFor('existence', 'footprints')
 ```
 
-The accessor variant of the existential operator `?.` can be used to soak up null references in a chain of properties. Use it instead of the dot accessor `.` in cases where the base value may be **null** or **undefined**. If all of the properties exist then you’ll get the expected result, if the chain is broken, **undefined** is returned instead of the **TypeError** that would be raised otherwise.
+Note that if the compiler knows that `a` is in scope and therefore declared, `a?` compiles to `a != null`, _not_ `a !== null`. The `!=` makes a loose comparison to `null`, which does double duty also comparing against `undefined`. The reverse also holds for `not a?` or `unless a?`.
+
+```
+codeFor('existence_declared')
+```
+
+If a variable might be undeclared, the compiler does a thorough check. This is what JavaScript coders _should_ be typing when they want to check if a mystery variable exists.
+
+```
+codeFor('existence_undeclared')
+```
+
+The accessor variant of the existential operator `?.` can be used to soak up null references in a chain of properties. Use it instead of the dot accessor `.` in cases where the base value may be `null` or `undefined`. If all of the properties exist then you’ll get the expected result, if the chain is broken, `undefined` is returned instead of the `TypeError` that would be raised otherwise.
 
 ```
 codeFor('soaks')
 ```
 
-Soaking up nulls is similar to Ruby’s [andand gem](https://rubygems.org/gems/andand), and to the [safe navigation operator](http://docs.groovy-lang.org/latest/html/documentation/index.html#_safe_navigation_operator) in Groovy.
+For completeness:
+
+| Example | Definition |
+| --- | --- |
+| `a?` | tests that `a` is in scope and `a != null` |
+| `a ? b` | returns `a` if `a` is in scope and `a != null`; otherwise, `b` |
+| `a?.b` or `a?['b']` | returns `a.b` if `a` is in scope and `a != null`; otherwise, `undefined` |
+| `a?(b, c)` or `a? b, c`  | returns the result of calling `a` (with arguments `b` and `c`) if `a` is in scope and callable; otherwise, `undefined` |
+| `a ?= b` | assigns the value of `b` to `a` if `a` is not in scope or if `a == null`; produces the new value of `a` |

documentation/sections/expressions.md

@@ -20,7 +20,7 @@ Things that would otherwise be statements in JavaScript, when used as part of an
 codeFor('expressions_comprehension', 'globals')
 ```
 
-As well as silly things, like passing a **try/catch** statement directly into a function call:
+As well as silly things, like passing a `try`/`catch` statement directly into a function call:
 
 ```
 codeFor('expressions_try', true)

documentation/sections/fat_arrow.md

@@ -1,4 +1,4 @@
-## Function Modifiers
+## Bound (Fat Arrow) Functions
 
 In JavaScript, the `this` keyword is dynamically scoped to mean the object that the current function is attached to. If you pass a function as a callback or attach it to a different object, the original value of `this` will be lost. If you’re not familiar with this behavior, [this Digital Web article](http://64.13.255.16/articles/scope_in_javascript/) gives a good overview of the quirks.
 
@@ -10,24 +10,4 @@ codeFor('fat_arrow')
 
 If we had used `->` in the callback above, `@customer` would have referred to the undefined “customer” property of the DOM element, and trying to call `purchase()` on it would have raised an exception.
 
-When used in a class definition, methods declared with the fat arrow will be automatically bound to each instance of the class when the instance is constructed.
-
-CoffeeScript also supports [generator functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/function*) and [async functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/async_function) through the `yield` and `await` keywords respectively. There's no `function*(){}` or `async function(){}` nonsense — a generator in CoffeeScript is simply a function that yields, and an async function in CoffeeScript is simply a function that awaits.
-
-```
-codeFor('generators', 'ps.next().value')
-```
-
-`yield*` is called `yield from`, and `yield return` may be used if you need to force a generator that doesn’t yield.
-
-You can iterate over a generator function using `for…from`.
-
-```
-codeFor('generator_iteration', 'getFibonacciNumbers(10)')
-```
-
-Similar to how `yield return` forces a generator, `await return` may be used to force a function to be async.
-
-```
-codeFor('async', true)
-```
+The fat arrow was one of the most popular features of CoffeeScript, and ES2015 [adopted it](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/Arrow_functions); so CoffeeScript 2 compiles `=>` to ES `=>`.

documentation/sections/generators.md

@@ -0,0 +1,17 @@
+## Generator Functions
+
+CoffeeScript supports ES2015 [generator functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/function*) through the `yield` keyword. There's no `function*(){}` nonsense — a generator in CoffeeScript is simply a function that yields.
+
+```
+codeFor('generators', 'ps.next().value')
+```
+
+`yield*` is called `yield from`, and `yield return` may be used if you need to force a generator that doesn’t yield.
+
+<div id="generator-iteration" class="bookmark"></div>
+
+You can iterate over a generator function using `for…from`.
+
+```
+codeFor('generator_iteration', 'getFibonacciNumbers(10)')
+```

documentation/sections/installation.md

@@ -1,15 +1,19 @@
 ## Installation
 
-The command-line version of `coffee` is available as a [Node.js](http://nodejs.org/) utility. The [core compiler](v<%= majorVersion %>/browser-compiler/coffeescript.js) however, does not depend on Node, and can be run in any JavaScript environment, or in the browser (see [Try CoffeeScript](#try)).
+The command-line version of `coffee` is available as a [Node.js](https://nodejs.org/) utility. The [core compiler](/v<%= majorVersion %>/browser-compiler/coffeescript.js) however, does not depend on Node, and can be run in any JavaScript environment, or in the browser (see [Try CoffeeScript](#try)).
 
-To install, first make sure you have a working copy of the latest stable version of [Node.js](http://nodejs.org/). You can then install CoffeeScript globally with [npm](http://npmjs.org):
+To install, first make sure you have a working copy of the latest stable version of [Node.js](https://nodejs.org/). You can then install CoffeeScript globally with [npm](https://www.npmjs.com/):
 
-> ```
+```bash
 npm install --global coffeescript
 ```
 
+This will make the `coffee` and `cake` commands available globally.
+
 When you need CoffeeScript as a dependency of a project, within that project’s folder you can install it locally:
 
-> ```
-npm install --save coffeescript
+```bash
+npm install --save-dev coffeescript
 ```
+
+The `coffee` and `cake` commands will first look in the current folder to see if CoffeeScript is installed locally, and use that version if so. This allows different versions of CoffeeScript to be installed globally and locally.

documentation/sections/introduction.md

@@ -2,8 +2,8 @@
 
 The golden rule of CoffeeScript is: _“It’s just JavaScript.”_ The code compiles one-to-one into the equivalent JS, and there is no interpretation at runtime. You can use any existing JavaScript library seamlessly from CoffeeScript (and vice-versa). The compiled output is readable, pretty-printed, and tends to run as fast or faster than the equivalent handwritten JavaScript.
 
-**Latest Version:** [<%= fullVersion %>](http://github.com/jashkenas/coffeescript/tarball/<%= fullVersion %>)
+**Latest Version:** [<%= fullVersion %>](https://github.com/jashkenas/coffeescript/tarball/<%= fullVersion %>)
 
-> ```
+```bash
 npm install -g coffeescript
 ```

documentation/sections/jsx.md

@@ -0,0 +1,13 @@
+## JSX
+
+[JSX](https://facebook.github.io/react/docs/introducing-jsx.html) is JavaScript containing interspersed XML elements. While conceived for [React](https://facebook.github.io/react/), it is not specific to any particular library or framework.
+
+CoffeeScript supports interspersed XML elements, without the need for separate plugins or special settings. The XML elements will be compiled as such, outputting JSX that could be parsed like any normal JSX file, for example by [Babel with the React JSX transform](https://babeljs.io/docs/plugins/transform-react-jsx/). CoffeeScript does _not_ output `React.createElement` calls or any code specific to React or any other framework. It is up to you to attach another step in your build chain to convert this JSX to whatever function calls you wish the XML elements to compile to.
+
+Just like in JSX and HTML, denote XML tags using `<` and `>`. You can interpolate CoffeeScript code inside a tag using `{` and `}`. To avoid compiler errors, when using `<` and `>` to mean “less than” or “greater than,” you should wrap the operators in spaces to distinguish them from XML tags. So `i < len`, not `i<len`. The compiler tries to be forgiving when it can be sure what you intend, but always putting spaces around the “less than” and “greater than” operators will remove ambiguity.
+
+```
+codeFor('jsx')
+```
+
+Older plugins or forks of CoffeeScript supported JSX syntax and referred to it as CSX or CJSX. They also often used a `.cjsx` file extension, but this is no longer necessary; regular `.coffee` will do.

documentation/sections/lexical_scope.md

@@ -6,10 +6,12 @@ The CoffeeScript compiler takes care to make sure that all of your variables are
 codeFor('scope', 'inner')
 ```
 
-Notice how all of the variable declarations have been pushed up to the top of the closest scope, the first time they appear. **outer** is not redeclared within the inner function, because it’s already in scope; **inner** within the function, on the other hand, should not be able to change the value of the external variable of the same name, and therefore has a declaration of its own.
+Notice how all of the variable declarations have been pushed up to the top of the closest scope, the first time they appear. `outer` is not redeclared within the inner function, because it’s already in scope; `inner` within the function, on the other hand, should not be able to change the value of the external variable of the same name, and therefore has a declaration of its own.
 
-This behavior is effectively identical to Ruby’s scope for local variables. Because you don’t have direct access to the `var` keyword, it’s impossible to shadow an outer variable on purpose, you may only refer to it. So be careful that you’re not reusing the name of an external variable accidentally, if you’re writing a deeply nested function.
+Because you don’t have direct access to the `var` keyword, it’s impossible to shadow an outer variable on purpose, you may only refer to it. So be careful that you’re not reusing the name of an external variable accidentally, if you’re writing a deeply nested function.
 
-Although suppressed within this documentation for clarity, all CoffeeScript output is wrapped in an anonymous function: `(function(){ … })();` This safety wrapper, combined with the automatic generation of the `var` keyword, make it exceedingly difficult to pollute the global namespace by accident.
+Although suppressed within this documentation for clarity, all CoffeeScript output (except in files with `import` or `export` statements) is wrapped in an anonymous function: `(function(){ … })();`. This safety wrapper, combined with the automatic generation of the `var` keyword, make it exceedingly difficult to pollute the global namespace by accident. (The safety wrapper can be disabled with the [`bare` option](#usage), and is unnecessary and automatically disabled when using modules.)
 
-If you’d like to create top-level variables for other scripts to use, attach them as properties on **window**; attach them as properties on the **exports** object in CommonJS; or use an [`export` statement](#modules). If you’re targeting both CommonJS and the browser, the **existential operator** (covered below), gives you a reliable way to figure out where to add them: `exports ? this`
+If you’d like to create top-level variables for other scripts to use, attach them as properties on `window`; attach them as properties on the `exports` object in CommonJS; or use an [`export` statement](#modules). If you’re targeting both CommonJS and the browser, the [existential operator](#existential-operator) (covered below), gives you a reliable way to figure out where to add them: `exports ? this`.
+
+Since CoffeeScript takes care of all variable declaration, it is not possible to declare variables with ES2015’s `let` or `const`. [This is intentional](#unsupported-let-const); we feel that the simplicity gained by not having to think about variable declaration outweighs the benefit of having three separate ways to declare variables.

documentation/sections/literate.md

@@ -1,5 +1,11 @@
 ## Literate CoffeeScript
 
-Besides being used as an ordinary programming language, CoffeeScript may also be written in “literate” mode. If you name your file with a `.litcoffee` extension, you can write it as a Markdown document — a document that also happens to be executable CoffeeScript code. The compiler will treat any indented blocks (Markdown’s way of indicating source code) as code, and ignore the rest as comments.
+Besides being used as an ordinary programming language, CoffeeScript may also be written in “literate” mode. If you name your file with a `.litcoffee` extension, you can write it as a Markdown document — a document that also happens to be executable CoffeeScript code. The compiler will treat any indented blocks (Markdown’s way of indicating source code) as executable code, and ignore the rest as comments. Code blocks must also be separated from comments by at least one blank line.
 
-Just for kicks, a little bit of the compiler is currently implemented in this fashion: See it [as a document](https://gist.github.com/jashkenas/3fc3c1a8b1009c00d9df), [raw](https://raw.github.com/jashkenas/coffeescript/master/src/scope.litcoffee), and [properly highlighted in a text editor](http://cl.ly/LxEu).
+Just for kicks, a little bit of the compiler is currently implemented in this fashion: See it [as a document](https://gist.github.com/jashkenas/3fc3c1a8b1009c00d9df), [raw](https://raw.githubusercontent.com/jashkenas/coffeescript/master/src/scope.litcoffee), and [properly highlighted in a text editor](http://cl.ly/LxEu).
+
+A few caveats:
+
+* Code blocks need to maintain consistent indentation relative to each other. When the compiler parses your Literate CoffeeScript file, it first discards all the non-code block lines and then parses the remainder as a regular CoffeeScript file. Therefore the code blocks need to be written as if the comment lines don’t exist, with consistent indentation (including whether they are indented with tabs or spaces).
+* Along those lines, code blocks within list items or blockquotes are not treated as executable code. Since list items and blockquotes imply their own indentation, it would be ambiguous how to treat indentation between successive code blocks when some are within these other blocks and some are not.
+* List items can be at most only one paragraph long. The second paragraph of a list item would be indented after a blank line, and therefore indistinguishable from a code block.

documentation/sections/loops.md

@@ -1,12 +1,12 @@
 ## Loops and Comprehensions
 
-Most of the loops you’ll write in CoffeeScript will be **comprehensions** over arrays, objects, and ranges. Comprehensions replace (and compile into) **for** loops, with optional guard clauses and the value of the current array index. Unlike for loops, array comprehensions are expressions, and can be returned and assigned.
+Most of the loops you’ll write in CoffeeScript will be **comprehensions** over arrays, objects, and ranges. Comprehensions replace (and compile into) `for` loops, with optional guard clauses and the value of the current array index. Unlike for loops, array comprehensions are expressions, and can be returned and assigned.
 
 ```
 codeFor('array_comprehensions')
 ```
 
-Comprehensions should be able to handle most places where you otherwise would use a loop, **each**/**forEach**, **map**, or **select**/**filter**, for example:<br>
+Comprehensions should be able to handle most places where you otherwise would use a loop, `each`/`forEach`, `map`, or `select`/`filter`, for example:<br>
 `shortNames = (name for name in list when name.length < 5)`<br>
 If you know the start and end of your loop, or would like to step through in fixed-size increments, you can use a range to specify the start and end of your comprehension.
 
@@ -32,13 +32,13 @@ If you would like to iterate over just the keys that are defined on the object i
 
 To iterate a generator function, use `from`. See [Generator Functions](#generator-iteration).
 
-The only low-level loop that CoffeeScript provides is the **while** loop. The main difference from JavaScript is that the **while** loop can be used as an expression, returning an array containing the result of each iteration through the loop.
+The only low-level loop that CoffeeScript provides is the `while` loop. The main difference from JavaScript is that the `while` loop can be used as an expression, returning an array containing the result of each iteration through the loop.
 
 ```
 codeFor('while', 'lyrics.join("\\n")')
 ```
 
-For readability, the **until** keyword is equivalent to `while not`, and the **loop** keyword is equivalent to `while true`.
+For readability, the `until` keyword is equivalent to `while not`, and the `loop` keyword is equivalent to `while true`.
 
 When using a JavaScript loop to generate functions, it’s common to insert a closure wrapper in order to ensure that loop variables are closed over, and all the generated functions don’t just share the final values. CoffeeScript provides the `do` keyword, which immediately invokes a passed function, forwarding any arguments.
 

documentation/sections/modules.md

@@ -6,6 +6,8 @@ ES2015 modules are supported in CoffeeScript, with very similar `import` and `ex
 codeFor('modules')
 ```
 
+<div id="modules-note" class="bookmark"></div>
+
 Note that the CoffeeScript compiler **does not resolve modules**; writing an `import` or `export` statement in CoffeeScript will produce an `import` or `export` statement in the resulting output. It is your responsibility attach another transpiler, such as [Traceur Compiler](https://github.com/google/traceur-compiler), [Babel](http://babeljs.io/) or [Rollup](https://github.com/rollup/rollup), to convert this ES2015 syntax into code that will work in your target runtimes.
 
 Also note that any file with an `import` or `export` statement will be output without a [top-level function safety wrapper](#lexical-scope); in other words, importing or exporting modules will automatically trigger [bare](#usage) mode for that file. This is because per the ES2015 spec, `import` or `export` statements must occur at the topmost scope.

documentation/sections/nodejs_usage.md

@@ -0,0 +1,26 @@
+### Node.js
+
+If you’d like to use Node.js’ CommonJS to `require` CoffeeScript files, e.g. `require './app.coffee'`, you must first “register” CoffeeScript as an extension:
+
+```coffee
+require 'coffeescript/register'
+
+App = require './app' # The .coffee extension is optional
+```
+
+If you want to use the compiler’s API, for example to make an app that compiles strings of CoffeeScript on the fly, you can `require` the full module:
+
+```coffee
+CoffeeScript = require 'coffeescript'
+
+eval CoffeeScript.compile 'console.log "Mmmmm, I could really go for some #{Math.pi}"'
+```
+
+The `compile` method has the signature `compile(code, options)` where `code` is a string of CoffeeScript code, and the optional `options` is an object with some or all of the following properties:
+
+* `options.sourceMap`, boolean: if true, a source map will be generated; and instead of returning a string, `compile` will return an object of the form `{js, v3SourceMap, sourceMap}`.
+* `options.inlineMap`, boolean: if true, output the source map as a base64-encoded string in a comment at the bottom.
+* `options.filename`, string: the filename to use for the source map. It can include a path (relative or absolute).
+* `options.bare`, boolean: if true, output without the [top-level function safety wrapper](#lexical-scope).
+* `options.header`, boolean: if true, output the `Generated by CoffeeScript` header.
+* `options.transpile`, **object**: if set, this must be an object with the [options to pass to Babel](http://babeljs.io/docs/usage/api/#options). See [Transpilation](#transpilation).