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253 Commits

Author SHA1 Message Date
Geoffrey Booth
704924c3cd 2.0.0-beta3 (#4594)
* Don’t confuse the syntax highlighter

* Comment Assign::compilePatternMatch a bit

* Assignment expressions in conditionals are a bad practice

* Rename `wrapInBraces` to `wrapInParentheses`, to set the stage for future `wrapInBraces` that uses `{` and `wrapInBrackets` that uses `[`

* Correct comment

* object destructuring

* Allow custom position of the rest element.

* Output simple array destructuring assignments to ES2015

* Output simple object destructured assignments to ES2015

* Compile shorthand object properties to ES2015 shorthand properties

This dramatically improves the appearance of destructured imports.

* Don’t confuse the syntax highlighter

* Comment Assign::compilePatternMatch a bit

* Assignment expressions in conditionals are a bad practice

* Rename `wrapInBraces` to `wrapInParentheses`, to set the stage for future `wrapInBraces` that uses `{` and `wrapInBrackets` that uses `[`

* object destructuring

* Allow custom position of the rest element.

* rest element in object destructuring

* rest element in object destructuring

* fix string interpolation

* merging

* fixing splats in object literal

* Rest element in parameter destructuring

* merging with CS2

* merged with CS2

* Add support for the object spread initializer. https://github.com/tc39/proposal-object-rest-spread/blob/master/Spread.md

* Fix misspellings, trailing whitespace, other minor details

* merging with beta2

* refactor object spread properties

* small fix

* - Fixed object spread function parameters.
- Clean up "Assign" and moved all logic for object rest properties in single method (compileObjectDestruct).
- Add helper function "objectWithoutKeys" to the "UTILITIES" for use with object rest properties,
  e.g. {a, b, r...} = obj => {a, b} = obj, r = objectWithoutKeys(...)
- Clean up "Obj" and moved all logic for object spread properties in single method (compileSpread).
- Clean up "Code".
- Add method "hasSplat" to "Obj" and "Value" for checking if Obj contains the splat.
- Enable placing spread syntax triple dots on either right or left, per #85 (https://github.com/coffeescript6/discuss/issues/85)

* Fixed typos

* Remove unused code

* Removed dots (e.g. splat) on the left side from the grammar

* Initial release for deep spread properties, e.g. obj2 = {obj.b..., a: 1} or {obj[b][c]..., d: 7}
Tests need to be prepared!

* 1. Object literal spread properties

Object literals:
- obj = { {b:{c:{d:1}}}..., a:1 }

Parenthetical:
- obj = { ( body ), a:1 }
- obj = { ( body )..., a:1 }

Invocation:
- obj = { ( (args) -> ... )(params), a:1 }
- obj = { ( (args) -> ... )(params)..., a:1 }
- obj = { foo(), a:1 }
- obj = { foo()..., a:1 }

2. Refactor, cleanup & other optimizations.

* Merged with 2.0

* Cleanup

* Some more cleanup.

* Fixed error with freeVariable and object destructuring.

* Fixed errors with object spread properties.

* Improvements, fixed errors.

* Minor improvement.

* Minor improvements.

* Typo.

* Remove unnecessary whitespace.

* Remove unnecessary whitespace.

* Changed few "assertErrorFormat" tests since parentheses are now allowed in the Obj.

* Whitespace cleanup

* Comments cleanup

* fix destructured obj param declarations

* refine fix; add test

* Refactor function args ({a, b...})

* Additional tests for object destructuring in function argument.

* Minor improvement for object destructuring variable declaration.

* refactor function args ({a, b...}) and ({a, b...} = {}); Obj And Param cleanup

* fix comment

* Fix object destructuring variable declaration.

* more tests with default values

* fix typo

* Fixed default values in object destructuring.

* small fix

* Babel’s tests for object rest spread

* Style: spaces after colons in object declarations

* Cleanup comments

* Simplify Babel tests

* Fix comments

* Fix destructuring with splats in multiple objects

* Add test for default values in detsructuring assignment with splats

* Handle default values when assigning to object splats

* Rewrite traverseRest to fix handling of dynamic keys

* Fix double parens around destructuring with splats

* Update compileObjectDestruct comments

* Improve formatting of top-level destructures with splats and tidy parens

* Added a bigger destructuring-with-defaults test and fixed a bug

* Refactor destructuring grammar to allow additional forms

* Add a missing case to ObjSpreadExpr

* These tests shouldn’t run in the browser

* Fix test.html

* Fix docs scroll position getting screwed up by CodeMirror initialization

* Breaking change documentation about => (fixes #4593)

* Spread/rest syntax documentation

* Documentation about bound class methods

* 2.0.0-beta3 changelog

* Add note about ‘lib’

* Fix accidentally converting this to tabs

* Bump version to 2.0.0-beta3

* Update annotated source and test.html
2017-06-30 09:58:05 -07:00
Geoffrey Booth
a7a6006533 [CS2] Destructuring object spreads (#4493)
* Don’t confuse the syntax highlighter

* Comment Assign::compilePatternMatch a bit

* Assignment expressions in conditionals are a bad practice

* Rename `wrapInBraces` to `wrapInParentheses`, to set the stage for future `wrapInBraces` that uses `{` and `wrapInBrackets` that uses `[`

* Correct comment

* object destructuring

* Allow custom position of the rest element.

* Output simple array destructuring assignments to ES2015

* Output simple object destructured assignments to ES2015

* Compile shorthand object properties to ES2015 shorthand properties

This dramatically improves the appearance of destructured imports.

* Don’t confuse the syntax highlighter

* Comment Assign::compilePatternMatch a bit

* Assignment expressions in conditionals are a bad practice

* Rename `wrapInBraces` to `wrapInParentheses`, to set the stage for future `wrapInBraces` that uses `{` and `wrapInBrackets` that uses `[`

* object destructuring

* Allow custom position of the rest element.

* rest element in object destructuring

* rest element in object destructuring

* fix string interpolation

* merging

* fixing splats in object literal

* Rest element in parameter destructuring

* merging with CS2

* merged with CS2

* Add support for the object spread initializer. https://github.com/tc39/proposal-object-rest-spread/blob/master/Spread.md

* Fix misspellings, trailing whitespace, other minor details

* merging with beta2

* refactor object spread properties

* small fix

* - Fixed object spread function parameters.
- Clean up "Assign" and moved all logic for object rest properties in single method (compileObjectDestruct).
- Add helper function "objectWithoutKeys" to the "UTILITIES" for use with object rest properties,
  e.g. {a, b, r...} = obj => {a, b} = obj, r = objectWithoutKeys(...)
- Clean up "Obj" and moved all logic for object spread properties in single method (compileSpread).
- Clean up "Code".
- Add method "hasSplat" to "Obj" and "Value" for checking if Obj contains the splat.
- Enable placing spread syntax triple dots on either right or left, per #85 (https://github.com/coffeescript6/discuss/issues/85)

* Fixed typos

* Remove unused code

* Removed dots (e.g. splat) on the left side from the grammar

* Initial release for deep spread properties, e.g. obj2 = {obj.b..., a: 1} or {obj[b][c]..., d: 7}
Tests need to be prepared!

* 1. Object literal spread properties

Object literals:
- obj = { {b:{c:{d:1}}}..., a:1 }

Parenthetical:
- obj = { ( body ), a:1 }
- obj = { ( body )..., a:1 }

Invocation:
- obj = { ( (args) -> ... )(params), a:1 }
- obj = { ( (args) -> ... )(params)..., a:1 }
- obj = { foo(), a:1 }
- obj = { foo()..., a:1 }

2. Refactor, cleanup & other optimizations.

* Merged with 2.0

* Cleanup

* Some more cleanup.

* Fixed error with freeVariable and object destructuring.

* Fixed errors with object spread properties.

* Improvements, fixed errors.

* Minor improvement.

* Minor improvements.

* Typo.

* Remove unnecessary whitespace.

* Remove unnecessary whitespace.

* Changed few "assertErrorFormat" tests since parentheses are now allowed in the Obj.

* Whitespace cleanup

* Comments cleanup

* fix destructured obj param declarations

* refine fix; add test

* Refactor function args ({a, b...})

* Additional tests for object destructuring in function argument.

* Minor improvement for object destructuring variable declaration.

* refactor function args ({a, b...}) and ({a, b...} = {}); Obj And Param cleanup

* fix comment

* Fix object destructuring variable declaration.

* more tests with default values

* fix typo

* Fixed default values in object destructuring.

* small fix

* Babel’s tests for object rest spread

* Style: spaces after colons in object declarations

* Cleanup comments

* Simplify Babel tests

* Fix comments

* Fix destructuring with splats in multiple objects

* Add test for default values in detsructuring assignment with splats

* Handle default values when assigning to object splats

* Rewrite traverseRest to fix handling of dynamic keys

* Fix double parens around destructuring with splats

* Update compileObjectDestruct comments

* Improve formatting of top-level destructures with splats and tidy parens

* Added a bigger destructuring-with-defaults test and fixed a bug

* Refactor destructuring grammar to allow additional forms

* Add a missing case to ObjSpreadExpr

* These tests shouldn’t run in the browser

* Fix test.html
2017-06-29 22:57:42 -07:00
Julian Rosse
58c608620e disallow inline chained call after func glyph (#4590) 2017-06-29 19:00:01 -07:00
Julian Rosse
b1d2061cbc [CS2] Fix #3906: handle indentation inside indented chain (#4587)
* safe missing end token error [Fixes #3906]

* handle indentation inside indented chain [Fixes #3906]
2017-06-29 18:39:05 -07:00
Geoffrey Booth
1f31073201 [CS2] JSX documentation, Try CoffeeScript improvements (#4583)
* Update browser compiler

* Argument parsing tests require CommonJS environment

* JSX section in the docs

* Breaking change note for < and > operators

* Fix JSX example

* Try CoffeeScript improvements: set the hash automatically, remove ‘link’ button, automatically save code in localStorage

* Fix the code editors’ handling of tab-indented code

* Fix JSX example to work with React

* Compiled, not rendered
2017-06-25 23:53:35 -07:00
Julian Rosse
a3a1fb0dd7 [CS2] Fix for comma after function glyph [#1043] (#4588)
* comma after function glyph [#1043]

* test fat arrow

* chain after function glyph [#3446] [#3845]
2017-06-25 23:46:54 -07:00
Julian Rosse
26f6fa6570 [CS2] destructured nested defaults [fixes #4566] (#4574)
* destructured nested defaults [fixes #4566]

* don't parenthesize nested assigns
2017-06-20 21:53:37 -07:00
Julian Rosse
0619a7a76c Fix #4579: postfix for in object literals (#4581)
* postfix for on first line of implicit object

* issue numbers

* handle until and while similarly
2017-06-20 21:50:50 -07:00
Danny McClanahan
31cd782ba7 [CS2] CLI: Test option parsing for current CLI (#4565)
* intermediate save

* add note saying where OptionParser is used in coffee command

* add some more work

* fix flatten functions

* refactor tests

* add basic test

* remove unused file

* compilation now hangs

* remove unnecessary changes

* add tests!!!

* clarify a test
2017-06-15 09:09:02 -07:00
Julian Rosse
5e90b224c2 Fix #4564: indent closes implicit object (#4570)
* indent closes implicit object [Fixes #4564]

* add test for just implicit object

* remove stray lib file
2017-06-15 09:07:36 -07:00
Julian Rosse
9a48566b24 [CS2] Restore bound class methods via runtime check to avoid premature calling of bound method before binding (#4561)
* bound method runtime check

* restore bound method tests

* bound method tests

* test bound method in prop-named class

* run check against parent class

* dummy commit

* remove comment

* rename to boundMethodCheck

* fixes from code review

* use ref to own class for check

* fixes from code review

* remove unneeded param
2017-06-14 15:11:53 -07:00
Chris Connelly
76e70a6c81 Fix immediately invoked named classes (#4569)
Fixes #4436.
2017-06-12 23:11:39 -07:00
Geoffrey
5b7a7779fb Merge branch 'master' of github.com:jashkenas/coffeescript into 2 2017-06-08 21:57:01 -07:00
Michal Srb
48c7debe5a Fix REPL assignment (#4559) 2017-06-07 11:37:25 -07:00
Michal Srb
dc0fb85fd3 [CS2] Support for CSX - equivalent of JSX (#4551)
* CSX implementation

* fixed comment, used toJS, added error tests, fixed error in identifier regex, fixed interpolation inside attributes value and added test

* added missing test for bare attributes, split attribute and indentifier regex, fixed checking for closing tags closing angle bracket

* Refactor tests that compare expected generated JavaScript with actual generated JavaScript to use common helper; add colors to error message to make differences easier to read

* Better match the style of the rest of the codebase

* Remove unused function

* More style fixes

* Allow unspaced less-than operator when not using CSX

* Replace includesCSX with a counter and simplify the unspaced operator logic

* Fixed indexing and realized that I completely enabled the tight spacing, added a test for it too

* Style fixes
2017-06-06 23:33:46 -07:00
Julian Rosse
63b109a4f5 Fix #4544: postfix conditional on first line of implicit object (#4554)
* support postfix conditional on first line of implicit object

* cleanup cleanup

* also fixes #2051, added test
2017-05-29 17:29:45 -07:00
Geoffrey Booth
cd6daf0b79 2.0.0-beta2 docs 2017-05-16 18:59:02 -07:00
Geoffrey Booth
d756bd6851 [CS2] 2.0.0-beta2 (#4550)
* Breaking changes note about bound class methods

* Changelog for 2.0.0-beta2, including renaming “Change Log” to “Changelog” (the preferred spelling per Wikipedia)

* Update version to 2.0.0-beta2

* 2.0.0-beta2 generated output
2017-05-16 11:53:22 -07:00
Geoffrey Booth
8c9e24841e Merge branch 'master' into 2
# Conflicts:
#	bin/cake
#	bin/coffee
#	documentation/sections/changelog.md
#	documentation/sections/installation.md
#	documentation/sections/introduction.md
#	lib/coffee-script/index.js
#	lib/coffee-script/nodes.js
#	lib/coffee-script/rewriter.js
#	lib/coffee-script/sourcemap.js
#	lib/coffeescript/browser.js
#	lib/coffeescript/cake.js
#	lib/coffeescript/coffeescript.js
#	lib/coffeescript/command.js
#	lib/coffeescript/grammar.js
#	lib/coffeescript/helpers.js
#	lib/coffeescript/lexer.js
#	lib/coffeescript/optparse.js
#	lib/coffeescript/register.js
#	lib/coffeescript/repl.js
#	lib/coffeescript/scope.js
#	package.json
2017-05-14 22:05:37 -07:00
Geoffrey Booth
f0e9837dca 1.12.6 missing updated output 2017-05-14 21:22:48 -07:00
Geoffrey Booth
b449e1be60 Comments and style fixes 2017-05-14 12:30:49 -07:00
Geoffrey Booth
f661f91323 1.12.6 (#4548)
* Un-prefer global (#4543)

* 1.12.6 changelog; update NPM module in documentation to be `coffeescript` instead of `coffee-script`; update installation to add note about global vs local `coffee` command

* Update packages

* Updated output

* Simplify changelog
2017-05-14 11:12:50 -07:00
Geoffrey Booth
7134856df2 Merge branch 'master' of github.com:jashkenas/coffeescript into 2
# Conflicts:
#	lib/coffee-script/rewriter.js
2017-05-13 21:23:05 -07:00
AKFish
8407dd885a [CS2] Module should be require-able in non-Node environments like Webpack and Browserify (#4546)
* Add webpack support

* Move Node.js-only code from src/coffee-script.coffee to src/index.coffee
* Use lib/coffee-script/index.js as npm package's "main" script
* Export CoffeeScript from src/browser.coffee
* Set package.json's "browser" field to lib/coffee-script/browser.js (used by webpack as entry point)
* Use lib/coffee-script/browser.js as bower package's "main" script

* Use NOP moduleMain when generating parser with Jison

* Remove legacy debug code from browser.coffee

* Improve comments, style

* Fix path

* Remove stub that was only to avoid breaking browser tests; compensate for the lack of stub when running the browser tests in Node

* Update output

* Add test:webpack task to Cakefile

* Update output files

* Run browser tests against webpack build

* Fix newline at end of file

* Export webpack test bundle as CommonJS module

* Remove build:webpack task

* Save webpack build to tmpdir; suppress build output unless it fails
2017-05-13 21:20:36 -07:00
Michal Srb
e00fa5d5f8 Fix #4533: chained calls incorrectly wrapping enclosing implicit objects (#4534) 2017-05-12 06:12:06 -07:00
Geoffrey Booth
993347bb8a [CS2] Un-prefer global (#4543)
* Don’t prefer global installation; the `coffee` or `cake` commands should try to run the locally-installed module if it exists, or the global version otherwise

* Style
2017-05-08 23:35:11 -07:00
Geoffrey Booth
e381e48a79 Fix typo; closes #4187 (#4539) 2017-05-06 06:11:21 -07:00
Geoffrey Booth
22d0cc1012 Fix #4020: No need for break; after a switch case that throws (#4538) 2017-05-06 01:38:20 -07:00
Geoffrey Booth
b28e398396 [CS2] Docs updates (#4536)
* Docs: named functions and function declarations

* No more prototypal `extends`; update docs and example

* More comprehensive documentation of the existential operator; closes #1631

* Better document operators, including `from`

* No fat arrow class methods anymore

* Destructuring shouldn’t say that default values are applied in case of undefined or null

* Spinoff generator and async functions into their own sections; reorder things so that the sections on functions come just before classes, and destructuring goes next to the operators (which discuss assignment)

* Rewrite “CoffeeScript 2” section, making it less practical and more explanatory; move practical info into “Usage”

* Update “Variable Scoping and Lexical Safety” section to remove incorrect reference to Ruby (fixes #2360), add missing details about the safety wrapper, add note about `let`/`const`.

* Updated browser compiler

* Updated docs

* Rewrite Literate CoffeeScript breaking changes

* Split apart the “Breaking Changes” and “Unsupported Features” sections into separate sidebar items and files

* Add example of `not in`, closes #3281

* Fix words in bold that should be in backticks

* Consolidate some breaking changes sections

* Add Node API documentation; closes #3551

* Move the chaining documentation out of the changelog into its own section
2017-05-05 19:44:11 -07:00
Geoffrey Booth
eba271db5b Merge branch 'master' of github.com:jashkenas/coffeescript into 2
# Conflicts:
#	lib/coffee-script/rewriter.js
#	lib/coffeescript/lexer.js
2017-05-02 23:03:37 -07:00
Michal Srb
51c06574a0 Fix #4150: Correctly outdent ternary followed by method call (#4535) 2017-05-02 23:00:21 -07:00
Geoffrey Booth
26cb24acc8 return and export default can now accept implicit objects (#4532) 2017-05-01 19:34:19 -07:00
Geoffrey Booth
2f9ab1d328 [CS2] return and export default can now accept implicit objects (#4532)
* Start with the test I want to pass: return an implicit (braces-less) object

* Update Rewriter class to follow pattern of nodes.coffee; move debugging snippet to where it’ll work in CS2

* Allow export default implicit object

* `return` assumes a continuation onto the next line *if* the next line is indented

* Fix comment; improve test
2017-05-01 19:26:24 -07:00
Chris Connelly
3e70d31e5d Remove support for bound instance methods (#4530)
Bound methods are implemented as assignments to `this` in the
constructor. In derived classes, where `this` is unavailable until
after `super` has been called, the binding is applied and assigned after
the `super` call. This means that any references to 'bound' methods
reachable from the parent constructor will actually point to the unbound
prototype methods.

This can lead to very subtle bugs where a method that is thought to be
bound is handed off and later called with an incorrect context, and the
only defence is for users to be vigilant about referencing bound methods
in constructors.
2017-04-27 23:03:01 -07:00
Geoffrey Booth
277975e33a [CS2] Replace Closure Compiler with Babili, transform browser compiler into ES5-ish (#4523)
* Swap Google Closure Compiler for Babili

* Browser compiler, minified by Babili

* Use Babel to transform, not just to minify; add process.env.TRANSFORM to disable transforming if we only want to minify. Unfortunately several browser tests fail when transformed . . .

* Move `super()` calls so that the Babel-transformed browser compiler passes all the browser tests (in Node, at least)

* Updated browser build

* Update browser tests
2017-04-26 16:21:29 -07:00
Julian Rosse
7ef5cb4a1f Keep unicode code point escapes as is when possible (#4520) 2017-04-25 19:15:08 +02:00
Geoffrey Booth
07ae1edb44 [CS2] Remove unnecessary utility helper functions (#4526)
* Uncomment module test that was waiting for classes to be supported

* Rely on native indexOf

* Replace `bind` helper with native `bind` (no shortcut necessary)

* Update output

* Update modules class tests

* Remove helper for prototype extends

* Update docs to reflect removed extends operator

* Add shortcut for splice, like we have for slice
2017-04-25 07:10:42 -07:00
Geoffrey Booth
7e35c2c3da We no longer need to wrap in quotes JavaScript reserved words used as properties (#4527) 2017-04-24 09:23:42 -07:00
Geoffrey Booth
5651b8b14b [CS2] Fix non-bare get set when called with @ argument (#4525)
* Fixes #4524: `get` and `set` should be usable without parentheses when accessed via a period

* More get/set tests
2017-04-23 11:23:36 -07:00
Julian Rosse
ac1b2b5c30 Iss4248 unicode code point escapes (cleanup) (#4522)
* Fix #4248: Unicode code point escapes

* rewrite unicode code point escapes as unicode escapes

* smarter defaults

* and resimplify

* correct surrogate pairs

* fixes from code review

* handle adjacent code point escapes

* smarter regex

* fix from code review

* refactor toJS() to shared test helper
2017-04-22 11:10:10 -07:00
Geoffrey Booth
3058eedf47 Merge pull request #4521 from helixbass/2_merged_master
merge `master` into `2`
2017-04-20 14:54:07 -07:00
Julian Rosse
89db842c3d merge master 2017-04-20 14:41:28 -05:00
Julian Rosse
96b6c5f65a Fix #4248: Unicode code point escapes (#4498) 2017-04-20 08:03:06 +02:00
Geoffrey Booth
bfce05438b Fix parenthesized conditions in if-else assignment (#4519)
* Fix parenthesized conditions in if-else assignment

* Add compiled output

* Use ‘is’ instead of ‘==‘; ‘right’ is a poor name when you mean ‘correct,’ not the right-hand side of the assignments in this test
2017-04-19 00:10:20 -07:00
Geoffrey Booth
ff60e6a6ce fix 'future reserved words' test (#4518)
Added the missing '#'s for correct string interpolation. Seems like this went unnoticed because in these test cases, the `check` function tests if the compilation fails, which it does either way.
2017-04-19 08:48:02 +02:00
jessaustin
e215a2d280 Write .coffee_history in $XDG_CACHE_HOME (#4472)
* Write .coffee_history in $XDG_CACHE_HOME

Previously, if the $HOME environmental variable was set, the
.coffee_history file was written there. This is still the case, but
first we check if $XDG_CACHE_HOME is set, and if so we write it
there instead. This allows users who want to follow the XDG Base
Directory Specification [0] to do so. Actually, this helps out *all*
users who want to keep their home directory a bit cleaner. It seems
that using this standardized environmental variable is the cleanest
way to do this, rather than involving configuration files or command
line flags or anything else.

Fixes #3705.

[0] https://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html

* Stylistic corrections

Corrected some style deficiencies, thanks to helpful advice from
@GeoffreyBooth.
2017-04-18 10:52:02 -07:00
Geoffrey Booth
0e8feb7ee9 [CS2] Literate CoffeeScript without dependencies (#4509)
* Reimplement `invertLiterate` without any dependency, tracking indentation levels (including inside lists); update literate test files to also check that no tests are skipped

* Drop Literate CoffeeScript’s support for executable code blocks inside list items (and also for second paragraphs or blockquotes in list items)

* Update Literate CoffeeScript docs to reflect current supported syntax
2017-04-17 23:30:40 -07:00
Geoffrey Booth
ae096a331a Merge branch 'master' into 2
# Conflicts:
#	Cakefile
#	documentation/sections/changelog.md
#	documentation/sections/classes.md
#	documentation/sections/fat_arrow.md
#	documentation/sections/installation.md
#	documentation/sections/introduction.md
#	documentation/sections/resources.md
#	documentation/sections/scripts.md
#	lib/coffeescript/repl.js
#	src/lexer.coffee
2017-04-17 19:52:34 -07:00
Geoffrey Booth
d7e096aeee [CS2] Fix links in v2 docs (#4506)
* Update 2.0.0-beta1 docs

* Fix broken links, update redirected links

* Rebuild v2 docs with updated links

* A few more fixed links
2017-04-17 19:43:22 -07:00
Geoffrey Booth
0da9d711c5 Fix broken links, update redirected links (#4505)
* Fix broken links, update redirected links

* A few more fixed links

* Update v2 docs
2017-04-17 19:43:10 -07:00
Geoffrey Booth
fecdbac291 A particular REPL test is broken in Node 4.8.2 because of a regression that was fixed in Node 5.11.0; just disable the test for Node < 6. Fixes #4502. (#4510) 2017-04-17 12:49:30 -07:00
Simon Lydell
473e8a1841 Merge pull request #4507 from GeoffreyBooth/tests-exit-code
Failing tests exit code; separate building and testing browser compiler
2017-04-16 09:40:08 +02:00
Geoffrey Booth
faf6d179be cake build:browser should just assemble the browser build, not also test it; add cake build:browser:full to additionally run the tests 2017-04-15 13:51:11 -07:00
Geoffrey Booth
d141d5c9ae If the tests fail, return a non-zero exit code 2017-04-15 13:44:14 -07:00
Geoffrey Booth
a36b45434f Merge branch 'master' of github.com:jashkenas/coffeescript 2017-04-13 20:40:24 -07:00
Geoffrey Booth
2ec1a1851d Update 2.0.0-beta1 docs 2017-04-13 20:37:55 -07:00
Geoffrey Booth
db216ec384 [CS2] 2.0.0-beta1 (#4499)
* Fix browser build to incorporate Markdown-It, not Marked

* Update Google Closure Compiler; recompile browser build but with MINIFY=false, because Closure Compiler throws an error on our current code; see https://github.com/google/closure-compiler-js/issues/59

* Bump version to 2.0.0-beta1; do release build, with updated docs and annotated source
2017-04-13 10:42:32 -07:00
Geoffrey Booth
9b77371ea8 Merge commit '72cf485dceb6a88abb3b83493032734409c3591a' into 2
# Conflicts:
#	Cakefile
#	docs/v1/index.html
#	documentation/sections/changelog.md
#	documentation/sections/installation.md
#	documentation/sections/introduction.md
#	lib/coffee-script/nodes.js
#	lib/coffee-script/rewriter.js
#	lib/coffee-script/sourcemap.js
#	lib/coffeescript/browser.js
#	lib/coffeescript/cake.js
#	lib/coffeescript/coffeescript.js
#	lib/coffeescript/command.js
#	lib/coffeescript/grammar.js
#	lib/coffeescript/helpers.js
#	lib/coffeescript/index.js
#	lib/coffeescript/lexer.js
#	lib/coffeescript/optparse.js
#	lib/coffeescript/register.js
#	lib/coffeescript/repl.js
#	lib/coffeescript/scope.js
#	package.json
2017-04-12 20:27:57 -07:00
Geoffrey Booth
d20f54967e [CS2] 2.0.0-beta1 docs (#4494)
* Update package versions; remove marked

* Revise docs to use Markdown-It: tables are now GitHub-Flavored Markdown tables, avoid hack of blockquoted code blocks

* Add anchors for sub-sections

* Add syntax highlighting to uneducable code blocks; fix missing italics variant for comments font

* Update docs about breaking changes in Literate CoffeeScript, move Breaking Changes section below Literate CoffeeScript section

* Update docs regarding destructuring default values breaking change

* Update changelog, with spitball release date for beta1

* Fix highlight function return statement
2017-04-09 23:07:58 -07:00
Geoffrey Booth
be7c1be75f Merge branch 'get-set-warning' into 2 2017-04-08 21:59:53 -07:00
Geoffrey Booth
8292d25d29 [CS2] Throw an error for ambiguous get or set keywords or function calls (#4484)
* Throw an error for ambiguous `get` or `set` function calls or ES5 getter/setter keywords, to warn the user to use parentheses if they intend a function call (or to inform them that `get` or `set` cannot be used as a keyword)

* Code golf

* Catch get or set keyword before static method

* DRY up getting the previous token

* Throw an error if get or set are used as keywords before what looks like a function or method with an interpolated/dynamic name

* Allow `get` or `set` parentheses-less function calls when first argument is a string without a colon (so a plain string, not a property accessor)

* Revert "Allow `get` or `set` parentheses-less function calls when first argument is a string without a colon (so a plain string, not a property accessor)"

This reverts commit 2d1addf5a4.

* Optimization

* No longer throw an error on `get` or `set` function calls to objects with dynamic property names (introduces a way to circumvent our check for trying to avoid the `get` or `set` keywords, but not worth the complications for this tiny edge case)
2017-04-08 21:59:09 -07:00
Julian Rosse
76945ab458 Fix #4487: Outdentation bug (#4488) 2017-04-08 13:12:55 -07:00
Geoffrey Booth
0576eb3a10 No longer throw an error on get or set function calls to objects with dynamic property names (introduces a way to circumvent our check for trying to avoid the get or set keywords, but not worth the complications for this tiny edge case) 2017-04-06 15:23:14 -07:00
Geoffrey Booth
7129f8347e Merge branch '2' into get-set-warning
# Conflicts:
#	lib/coffeescript/lexer.js
2017-04-06 10:12:46 -07:00
Geoffrey Booth
4d25907155 Optimization 2017-04-06 10:11:29 -07:00
Geoffrey Booth
b192e215a5 [CS2] Destructuring (#4478)
* Output simple array destructuring assignments to ES2015

* Output simple object destructured assignments to ES2015

* Compile shorthand object properties to ES2015 shorthand properties

This dramatically improves the appearance of destructured imports.

* Compile default values in destructured assignment to ES2015

* Rename `wrapInBraces` to `wrapInParentheses`, and `compilePatternMatch` to `compileDestructuring`, for clarity; style improvements (no `==` or `!=`, etc.)

* Don’t confuse the syntax highlighter

* Comment Assign::compilePatternMatch a bit

* Assignment expressions in conditionals are a bad practice

* Optional check for existence that only checks `!== undefined`, not `!= null`, to follow ES convention that default values only apply when a variable is undefined, not falsy

* Add comments; remove unnecessary array splats in function tests

* The fallback destructuring code should apply default values only if `undefined`, not falsy, to follow ES spec

* Support destructuring in function parameters (first pass); catch destructured reserved words

* Destructured variables in function parameter lists shouldn’t be added to the function body with `var` declarations; treat splat array function parameters the legacy way to avoid rethinking #4005

* Remove redundancy in undefined-only check for existence; fix passing option to check

* Fix undefined redundancy

* Simplify getting the variable name

* Reimplement “check for existence if not undefined” without creating a new operator

* `Obj::isAssignable` should not mutate; pass `lhs` property in from `Assign` or `Code` to child arrays and objects so that those child nodes are set as allowable for destructuring

* Revert changes to tests

* Restore revised test for empty destructuring assignment
2017-04-06 10:06:45 -07:00
Geoffrey Booth
5e1d978946 [CS2] Fix handling of tabbed code blocks in .litcoffee files (#4485)
* Add tabbed literate test; modernize Markdown title heading

* Better parsing of Literate CoffeeScript files, including now correct parsing of tabbed .litcoffee files; and more accurate stack traces (assuming you don’t do your own word wrapping within list items)

* Swap Marked for MarkdownIt for parsing the Markdown of Literate CoffeeScript files; use MarkdownIt’s `map` property to preserve correct line numbers

* Literate CoffeeScript tests: remove trailing whitespace, fix spelling

* Literate CoffeeScript tests: add block quote test

* Literate CoffeeScript (tabbed, at least) seems to need a consistent starting indentation

* Restore test

* Reference links work now in MarkdownIt

* Breaking change in Literate CoffeeScript: code blocks within HTML tags must be unindented

* Breaking change in Literate CoffeeScript: code blocks within lists need a blank line separating them from the list item text
2017-04-06 09:59:11 -07:00
Geoffrey Booth
a7447d5bba Revert "Allow get or set parentheses-less function calls when first argument is a string without a colon (so a plain string, not a property accessor)"
This reverts commit 2d1addf5a4.
2017-04-06 09:28:23 -07:00
Geoffrey Booth
2d1addf5a4 Allow get or set parentheses-less function calls when first argument is a string without a colon (so a plain string, not a property accessor) 2017-04-06 00:47:06 -07:00
Geoffrey Booth
962374aec1 Throw an error if get or set are used as keywords before what looks like a function or method with an interpolated/dynamic name 2017-04-04 17:03:11 -07:00
Geoffrey Booth
ed4c8286a2 DRY up getting the previous token 2017-04-04 17:00:43 -07:00
Geoffrey Booth
fcf7ddaf45 Catch get or set keyword before static method 2017-04-04 16:31:52 -07:00
Geoffrey Booth
725fe8e018 Code golf 2017-04-04 00:05:14 -07:00
Geoffrey Booth
5596dac5e1 Throw an error for ambiguous get or set function calls or ES5 getter/setter keywords, to warn the user to use parentheses if they intend a function call (or to inform them that get or set cannot be used as a keyword) 2017-04-03 22:43:50 -07:00
Geoffrey Booth
57c0b16eeb Merge pull request #4469 from mrmowgli/2-docs
[CS2] An explanation of why we don’t currently support certain features
2017-04-03 22:40:56 -07:00
Geoffrey Booth
0c06fb2b9f Merge branch '2' into 2-docs 2017-04-02 23:13:00 -07:00
Geoffrey Booth
cfdec64958 Merge branch 'master' of github.com:jashkenas/coffeescript into 2
# Conflicts:
#	lib/coffee-script/parser.js
#	lib/coffeescript/lexer.js
2017-04-02 23:10:31 -07:00
Geoffrey Booth
d0c6e53b83 Merge branch '2' into 2-docs
# Conflicts:
#	documentation/sections/coffeescript_2.md
2017-04-02 22:55:31 -07:00
Geoffrey Booth
27caf62322 Merge discussion of CoffeeScript’s benefits into expanded CoffeeScript 2 section and revised Contributing section 2017-04-02 22:53:18 -07:00
Geoffrey Booth
b8df321058 Merge unsupported let/const and get/set sections, shorten 2017-04-02 22:52:37 -07:00
Geoffrey Booth
06f6efa6d5 Bump minimum Node version to 7.6, which has non-harmony support for async/await; make async tests always enabled, not just for harmony mode 2017-04-02 22:05:09 -07:00
7anshuai
c035d53fb0 Fix broken links in 2 docs (#4480)
Thanks!
2017-04-02 20:09:13 -07:00
mrmowgli
5888ac56d8 Added example, simplified text via suggestion from GeoffreyBooth 2017-03-22 05:16:55 -04:00
mrmowgli
a6bf72a791 Remove language and add link to Wiki article- In the Wild. 2017-03-22 01:51:07 -04:00
mrmowgli
3aa177c88f Reduced overall size per section, cleaned up some style issues and fixed some spelling issues. 2017-03-21 04:59:25 -04:00
mrmowgli
608799f5d0 Looking for comments, Documentation of unsupported features, and suggested menu locations. Separated Why Coffeescript out. Yes I know I need to trim let/const down. 2017-03-19 06:33:15 -04:00
mrmowgli
97aef9b30d An explanation of why we don't currently support certain features within CS2. First draft. 2017-03-16 07:05:30 -04:00
Geoffrey
ccbf3152af Update NPM installation instructions 2017-02-21 21:12:40 -08:00
Geoffrey Booth
f8c150f201 Merge pull request #4439 from GeoffreyBooth/2.0.0-alpha1
[CS2] 2.0.0-alpha1
2017-02-21 07:04:18 -08:00
Geoffrey Booth
a5cb8cd7c3 Rebuild release 2017-02-20 16:07:44 -08:00
Geoffrey Booth
32799ad732 Make test compatible with Firefox (though it still fails there while it passes in Node and Chrome) 2017-02-20 15:59:59 -08:00
Geoffrey Booth
d47f90599e Bump date 2017-02-20 15:59:59 -08:00
Geoffrey Booth
5817aeb837 Fix browser test.html to work with async tests 2017-02-20 15:59:58 -08:00
Geoffrey Booth
7de06c3dcb Ensure unique source maps’ sourceURL; closes #4126 2017-02-20 15:46:48 -08:00
Geoffrey Booth
6f0f173795 Update changelog for 1.12.4 2017-02-20 15:31:28 -08:00
Geoffrey Booth
221a8720fe Merge branch '2' into 2.0.0-alpha1
# Conflicts:
#	Cakefile
#	README.md
#	documentation/sections/changelog.md
2017-02-18 18:36:15 -05:00
Alan Pierce
ff56533e0b Fix CS2 build after merge pulled in a bare super call (#4447)
[CS2] Fix CS2 build after merge pulled in a bare super call
2017-02-18 18:14:47 -05:00
Geoffrey Booth
e88619a3bb Merge branch 'master' into 2
# Conflicts:
#	documentation/sections/resources.md
#	lib/coffee-script/browser.js
#	lib/coffee-script/cake.js
#	lib/coffee-script/coffee-script.js
#	lib/coffee-script/command.js
#	lib/coffee-script/grammar.js
#	lib/coffee-script/helpers.js
#	lib/coffee-script/index.js
#	lib/coffee-script/lexer.js
#	lib/coffee-script/nodes.js
#	lib/coffee-script/optparse.js
#	lib/coffee-script/register.js
#	lib/coffee-script/repl.js
#	lib/coffee-script/rewriter.js
#	lib/coffee-script/scope.js
#	lib/coffee-script/sourcemap.js
#	package.json
2017-02-18 10:52:55 -05:00
Geoffrey
4cc701a9da Remove hyphen in coffee-script 2017-02-12 17:00:05 -08:00
Geoffrey
d2e94c6ebd Fix Try CoffeeScript for mobile 2017-02-12 16:36:52 -08:00
Geoffrey Booth
d7d32cf0b6 Prepare for new module name on NPM 2017-02-10 11:38:43 -08:00
Geoffrey Booth
ebe32d35e2 Add breaking changes link to changelog; bump date 2017-02-10 11:36:35 -08:00
Geoffrey Booth
ecafe7ce0f Update changelog for 2.0.0-alpha1 2017-02-09 13:33:35 -08:00
Geoffrey Booth
41a229e22e Update browser-based tests output 2017-02-09 13:29:23 -08:00
Geoffrey Booth
d9194b2670 Update annotated source for 2.0.0-alpha1 2017-02-09 13:29:12 -08:00
Geoffrey Booth
365d1968e9 Bump CoffeeScript version to 2.0.0-alpha1 2017-02-09 13:28:22 -08:00
Geoffrey Booth
eebc432efb Fix link to browser-based tests 2017-02-09 13:27:24 -08:00
Geoffrey Booth
dd5aa2b7a4 Bump version of Closure Compiler, update browser compiler 2017-02-09 13:26:46 -08:00
Geoffrey Booth
d1d2c16fdd Update docs for classes, breaking changes (#4438)
* Update classes docs for CS2

* Port breaking changes from https://github.com/jashkenas/coffeescript/wiki/%5BWIP%5D-Breaking-changes-in-CoffeeScript-2 into new docs section

* Update browser compiler

* Update re @connec’s notes; split classes section into two sections for classes and working with prototypes; make breaking changes examples editable whenever possible
2017-02-09 08:50:11 -08:00
Geoffrey
ef1898ba42 Merge commit '3d0d04efe286fdbd9b1b1841112a6b9c991e9698' into 2 2017-02-07 20:20:51 -08:00
Geoffrey Booth
81cbca5bb8 Update async test to use new super syntax 2017-02-04 17:05:18 -08:00
Geoffrey
da3db1be39 Merge branch 'master' of github.com:jashkenas/coffeescript into 2
# Conflicts:
#	lib/coffee-script/nodes.js
#	lib/coffee-script/scope.js
2017-02-04 12:36:49 -08:00
Chris Connelly
396bd4f2f2 [CS2] Compile all super calls to ES2015 super (#4424)
* Compile all super calls to ES2015 super

This breaks using `super` in non-methods, meaning several tests are
failing. Self-compilation still works.

* Use bound functions for IIFEs containing `super`

`super` can only be called directly in a method, or in an arrow
function.

* Fix handling of `class @A extends A`

This behaviour worked 'for free' when the parent reference was being
cached by the executable class body wrapper. There now needs to be
special handling in place to check if the parent name matches the class
name, and if so to cache the parent reference.

* Fix tests broken by compiling ES2015 `super`

* Disallow bare super

This removes syntax support for 'bare' super calls, e.g.:

    class B extends A
      constructor: -> super

`super` must now always be followed with arguments like a regular
function call. This also removes the capability of implicitly forwarding
arguments. The above can be equivalently be written as:

    class B extends A
      constructor: -> super arguments...

* Support super with accessors

`super` with following accessor(s) is now compiled to ES2015
equivalents. In particular, expressions such as `super.name`,
`super[name]`, and also `super.name.prop` are all now valid, and can be
used as expected as calls (i.e. `super.name()`) or in expressions (i.e.
`if super.name? ...`).

`super` without accessors is compiled to a constructor super call in a
constructor, and otherwise, as before, to a super call to the method of
the same name, i.e.

    speak: -> super()

...is equivalent to

    speak: -> super.speak()

A neat side-effect of the changes is that existential calls now work
properly with super, meaning `super?()` will only call if the super
property exists (and is a function). This is not valid for super in
constructors.

* Prevent calling `super` methods with `new`

This fixes a bug in the previous super handling whereby using the `new`
operator with a `super` call would silently drop the `new`. This is now
an explicit compiler error, as it is invalid JS at runtime.

* Clean up some old super handling code

This was mostly code for tracking the source classes and variables for
methods, which were needed to build the old lookups on `__super__`.

* Add TODO to improve bare super parse error

* Add some TODOs to improve some of the class tests
2017-02-04 12:03:17 -08:00
Geoffrey Booth
cbea7b5d1c [CS2] Fix handling of parameters that are complex (#4430)
* Add failing test per #4406

* If a parameter is a function call, define it in an expression within the function body

* Remove the space between `function` and `*` for generator functions, to follow usual ES idiom

* We can collapse `isCall` into `isComplex`

* Don’t need existence check here

* Correct destructured parameter default evaluation order with an incrementing variable (or more generally any complicated parameter that isComplex)

* Try to pull complex parameters out of the parameter list if their order of execution matters; but don’t pull _all_ complex parameters out of the parameter list, so that we don’t lose parameter default values

* Add lots of comments about node special properties

* Err on the side of caution in deciding whether a complex parameter is allowable in a function parameter list rather than the function body (there are lots more detections we could add to find additional “safe” parameters)

* Follow the ES and CS2 convention of assigning parameter default values only when undefined, not when null or undefined

* Along with arrays and empty objects, also let values whose bases are not complex be allowed in the function parameter list (like `obj.prop`)

* Better way to check for undefined parameters when declaring them in a function body

* Once we’ve put a complex parameter in the function body, all following complex parameters go into the function body; no need to create lots of exceptions of when to choose whether to put a complex param in the body

* Rename `isComplex` to `shouldCache` for clarity
2017-02-01 06:54:42 -08:00
Geoffrey Booth
3e7973e08d Merge branch 'master' into 2
# Conflicts:
#	lib/coffee-script/browser.js
#	lib/coffee-script/cake.js
#	lib/coffee-script/coffee-script.js
#	lib/coffee-script/command.js
#	lib/coffee-script/grammar.js
#	lib/coffee-script/helpers.js
#	lib/coffee-script/index.js
#	lib/coffee-script/lexer.js
#	lib/coffee-script/nodes.js
#	lib/coffee-script/optparse.js
#	lib/coffee-script/register.js
#	lib/coffee-script/repl.js
#	lib/coffee-script/rewriter.js
#	lib/coffee-script/scope.js
#	lib/coffee-script/sourcemap.js
#	package.json
2017-01-24 18:54:55 -08:00
Geoffrey Booth
ec5adf53a7 Fix CodeMirror cursor in CoffeeScript input columns; update generated documentation 2017-01-22 20:05:12 -08:00
Geoffrey Booth
48eb173bcd Merge branch 'master' of github.com:jashkenas/coffeescript into 2
# Conflicts:
#	lib/coffee-script/nodes.js
#	test/error_messages.coffee
2017-01-22 16:32:38 -08:00
Geoffrey Booth
69a07dfa6d [CS2] Fix handling of parameters that are function calls (#4427)
* Add failing test per #4406

* If a parameter is a function call, define it in an expression within the function body

* Remove the space between `function` and `*` for generator functions, to follow usual ES idiom

* We can collapse `isCall` into `isComplex`

* Don’t need existence check here
2017-01-22 04:40:33 -08:00
Simon Lydell
800116d859 Merge pull request #4426 from connec/class-dynamic-key-scope
[CS2] Fix scope of assignments in dynamic class keys
2017-01-21 09:55:33 +01:00
Chris Connelly
4f6073f283 Fix scope of assignments in dynamic class keys
Dynamic class keys were using the method scope for compilation,
resulting in missing declarations and runtime errors.
2017-01-19 21:47:25 +00:00
Geoffrey Booth
9e13100f58 Allow copying JavaScript from examples 2017-01-12 22:08:11 -08:00
Geoffrey Booth
52bc1dab0b Update docs per #4354 2017-01-12 21:59:54 -08:00
Geoffrey Booth
ff9f078a89 Merge branch '2' into 2-docs 2017-01-12 21:57:16 -08:00
Chris Connelly
8d81804fee [CS2] Compile class constructors to ES2015 classes (#4354)
* Compile classes to ES2015 classes

Rather than compiling classes to named functions with prototype and
class assignments, they are now compiled to ES2015 class declarations.

Backwards compatibility has been maintained by compiling ES2015-
incompatible properties as prototype or class assignments. `super`
continues to be compiled as before.

Where possible, classes will be compiled "bare", without an enclosing
IIFE. This is possible when the class contains only ES2015 compatible
expressions (methods and static methods), and has no parent (this last
constraint is a result of the legacy `super` compilation, and could be
removed once ES2015 `super` is being used). Classes are still assigned
to variables to maintain compatibility for assigned class expressions.

There are a few changes to existing functionality that could break
backwards compatibility:

- Derived constructors that deliberately don't call `super` are no
  longer possible. ES2015 derived classes can't use `this` unless the
  parent constructor has been called, so it's now called implicitly when
  not present.

- As a consequence of the above, derived constructors with @ parameters
  or bound methods and explicit `super` calls are not allowed. The
  implicit `super` must be used in these cases.

* Add tests to verify class interoperability with ES

* Refactor class nodes to separate executable body logic

Logic has been redistributed amongst the class nodes so that:

- `Class` contains the logic necessary to compile an ES class
  declaration.
- `ExecutableClassBody` contains the logic necessary to compile CS'
  class extensions that require an executable class body.

`Class` still necessarily contains logic to determine whether an
expression is valid in an ES class initializer or not. If any invalid
expressions are found then `Class` will wrap itself in an
`ExecutableClassBody` when compiling.

* Rename `Code#static` to `Code#isStatic`

This naming is more consistent with other `Code` flags.

* Output anonymous classes when possible

Anonymous classes can be output when:

- The class has no parent. The current super compilation needs a class
  variable to reference. This condition will go away when ES2015 super
  is in use.
- The class contains no bound static methods. Bound static methods have
  their context set to the class name.

* Throw errors at compile time for async or generator constructors

* Improve handling of anonymous classes

Anonymous classes are now always anonymous. If a name is required (e.g.
for bound static methods or derived classes) then the class is compiled
in an `ExecutableClassBody` which will give the anonymous class a stable
reference.

* Add a `replaceInContext` method to `Node`

`replaceInContext` will traverse children looking for a node for which
`match` returns true. Once found, the matching node will be replaced by
the result of calling `replacement`.

* Separate `this` assignments from function parameters

This change has been made to simplify two future changes:

1. Outputting `@`-param assignments after a `super` call.
   In this case it is necessary that non-`@` parameters are available
   before `super` is called, so destructuring has to happen before
   `this` assignment.
2. Compiling destructured assignment to ES6
   In this case also destructuring has to happen before `this`,
   as destructuring can happen in the arguments list, but `this`
   assignment can not.

A bonus side-effect is that default values for `@` params are now output
as ES6 default parameters, e.g.

    (@a = 1) ->

becomes

    function a (a = 1) {
      this.a = a;
    }

* Change `super` handling in class constructors

Inside an ES derived constructor (a constructor for a class that extends
another class), it is impossible to access `this` until `super` has been
called. This conflicts with CoffeeScript's `@`-param and bound method
features, which compile to `this` references at the top of a function
body. For example:

    class B extends A
      constructor: (@param) -> super
      method: =>

This would compile to something like:

    class B extends A {
      constructor (param) {
        this.param = param;
        this.method = bind(this.method, this);
        super(...arguments);
      }
    }

This would break in an ES-compliant runtime as there are `this`
references before the call to `super`. Before this commit we were
dealing with this by injecting an implicit `super` call into derived
constructors that do not already have an explicit `super` call.
Furthermore, we would disallow explicit `super` calls in derived
constructors that used bound methods or `@`-params, meaning the above
example would need to be rewritten as:

    class B extends A
      constructor: (@param) ->
      method: =>

This would result in a call to `super(...arguments)` being generated as
the first expression in `B#constructor`.

Whilst this approach seems to work pretty well, and is arguably more
convenient than having to manually call `super` when you don't
particularly care about the arguments, it does introduce some 'magic'
and separation from ES, and would likely be a pain point in a project
that made use of significant constructor overriding.

This commit introduces a mechanism through which `super` in constructors
is 'expanded' to include any generated `this` assignments, whilst
retaining the same semantics of a super call. The first example above
now compiles to something like:

    class B extends A {
      constructor (param) {
        var ref
        ref = super(...arguments), this.param = param, this.method = bind(this.method, this), ref;
      }
   }

* Improve `super` handling in constructors

Rather than functions expanding their `super` calls, the `SuperCall`
node can now be given a list of `thisAssignments` to apply when it is
compiled.

This allows us to use the normal compiler machinery to determine whether
the `super` result needs to be cached, whether it appears inline or not,
etc.

* Fix anonymous classes at the top level

Anonymous classes in ES are only valid within expressions. If an
anonymous class is at the top level it will now be wrapped in
parenthses to force it into an expression.

* Re-add Parens wrapper around executable class bodies

This was lost in the refactoring, but it necessary to ensure
`new class ...` works as expected when there's an executable body.

* Throw compiler errors for badly configured derived constructors

Rather than letting them become runtime errors, the following checks are
now performed when compiling a derived constructor:

- The constructor **must** include a call to `super`.
- The constructor **must not** reference `this` in the function body
  before `super` has been called.

* Add some tests exercising new class behaviour

- async methods in classes
- `this` access after `super` in extended classes
- constructor super in arrow functions
- constructor functions can't be async
- constructor functions can't be generators
- derived constructors must call super
- derived constructors can't reference `this` before calling super
- generator methods in classes
- 'new' target

* Improve constructor `super` errors

Add a check for `super` in non-extended class constructors, and
explicitly mention derived constructors in the "can't reference this
before super" error.

* Fix compilation of multiple `super` paths in derived constructors

`super` can only be called once, but it can be called conditionally from
multiple locations. The chosen fix is to add the `this` assignments to
every super call.

* Additional class tests, added as a separate file to simplify testing and merging.
Some methods are commented out because they currently throw and I'm not sure how
to test for compilation errors like those.

There is also one test which I deliberately left without passing, `super` in an external prototype override.
This test should 'pass' but is really a variation on the failing `super only allowed in an instance method`
tests above it.

* Changes to the tests. Found bug in super in prototype method. fixed.

* Added failing test back in, dealing with bound functions in external prototype overrides.

* Located a bug in the compiler relating to assertions and escaped ES6 classes.

* Move tests from classes-additional.coffee into classes.coffee; comment out console.log

* Cleaned up tests and made changes based on feedback.  Test at the end still has issues, but it's commented out for now.

* Make HoistTarget.expand recursive

It's possible that a hoisted node may itself contain hoisted nodes (e.g.
a class method inside a class method). For this to work the hoisted
fragments need to be expanded recursively.

* Uncomment final test in classes.coffee

The test case now compiles, however another issue is affecting the test
due to the error for `this` before `super` triggering based on source
order rather than execution order. These have been commented out for
now.

* Fixed last test TODOs in test/classes.coffee

Turns out an expression like `this.foo = super()` won't run in JS as it
attempts to lookup `this` before evaluating `super` (i.e. throws "this
is not defined").

* Added more tests for compatability checks, statics, prototypes and ES6 expectations.  Cleaned test "nested classes with super".

* Changes to reflect feedback and to comment out issues that will be addressed seperately.

* Clean up test/classes.coffee

- Trim trailing whitespace.
- Rephrase a condition to be more idiomatic.

* Remove check for `super` in derived constructors

In order to be usable at runtime, an extended ES class must call `super`
OR return an alternative object. This check prevented the latter case,
and checking for an alternative return can't be completed statically
without control flow analysis.

* Disallow 'super' in constructor parameter defaults

There are many edge cases when combining 'super' in parameter defaults
with @-parameters and bound functions (and potentially property
initializers in the future).

Rather than attempting to resolve these edge cases, 'super' is now
explicitly disallowed in constructor parameter defaults.

* Disallow @-params in derived constructors without 'super'

@-parameters can't be assigned unless 'super' is called.
2017-01-12 21:55:30 -08:00
Geoffrey Booth
0fc625d7e9 Try CoffeeScript add play and link buttons 2016-12-27 22:53:52 -05:00
Geoffrey Booth
ef1005b920 Try CoffeeScript first draft 2016-12-27 21:35:43 -05:00
Geoffrey Booth
5cf8256d2e Merge branch 'master' of github.com:jashkenas/coffeescript into 2 2016-12-26 21:17:20 -05:00
Geoffrey Booth
f0e884dc4e Update output 2016-12-19 22:32:51 -08:00
Geoffrey Booth
24bef3a1f5 Merge branch '2' into 2-docs
# Conflicts:
#	docs/v1/index.html
#	docs/v1/test.html
#	documentation/sections/changelog.md
#	documentation/sections/chat.md
#	documentation/sections/fat_arrow.md
#	documentation/sections/functions.md
#	documentation/sections/installation.md
#	documentation/sections/introduction.md
#	documentation/sections/language.md
#	documentation/sections/literate.md
#	documentation/sections/operators.md
#	documentation/sections/overview.md
#	documentation/sections/resources.md
#	documentation/sections/scripts.md
#	documentation/sections/source_maps.md
#	documentation/sections/strings.md
#	documentation/sections/tagged_template_literals.md
#	documentation/sections/usage.md
2016-12-19 22:32:07 -08:00
Geoffrey Booth
5d557a54e1 Updated v2 docs generated output 2016-12-19 22:27:42 -08:00
Geoffrey Booth
3379f233e8 Modernize various sections as relevant to v2; improve presentation of tables 2016-12-19 22:27:32 -08:00
Geoffrey Booth
26b1584fd8 Trim the installation and usage sections; can backport to v1 2016-12-19 22:10:32 -08:00
Geoffrey Booth
5fa91e7b95 Fix scrollspy for Resources 2016-12-19 21:59:19 -08:00
Geoffrey Booth
d8bd2b7fd0 Embedded JavaScript should really be the last item in the language reference 2016-12-19 21:55:44 -08:00
Geoffrey Booth
d02376c4c6 Convert async docs text to markdown, add to sidebar 2016-12-19 21:50:30 -08:00
Geoffrey Booth
69fbb361f2 Merge branch '2-docs' into async-docs
# Conflicts:
#	documentation/index.html.js
2016-12-19 21:41:22 -08:00
Geoffrey Booth
4468ca69c0 Add some v1-style ribbing 2016-12-19 21:29:03 -08:00
Geoffrey Booth
a4b3a3ba39 Updated output v2 docs 2016-12-18 23:40:30 -08:00
Geoffrey Booth
ad90f4ad99 Update introduction for CoffeeScript 2 2016-12-18 23:25:01 -08:00
Geoffrey Booth
cc8dd150f5 Fix filename style 2016-12-18 23:24:43 -08:00
Geoffrey Booth
7ced071934 Add some links to header navbar; fix sidebar to work at various breakpoints, including navigating to anchors 2016-12-18 23:03:17 -08:00
Geoffrey Booth
28d077c08a Style blockquotes 2016-12-18 18:29:36 -08:00
Geoffrey Booth
31ff5e4194 Merge branch 'master' of github.com:jashkenas/coffeescript into 2
# Conflicts:
#	lib/coffee-script/browser.js
#	lib/coffee-script/cake.js
#	lib/coffee-script/coffee-script.js
#	lib/coffee-script/command.js
#	lib/coffee-script/grammar.js
#	lib/coffee-script/helpers.js
#	lib/coffee-script/index.js
#	lib/coffee-script/lexer.js
#	lib/coffee-script/nodes.js
#	lib/coffee-script/optparse.js
#	lib/coffee-script/register.js
#	lib/coffee-script/repl.js
#	lib/coffee-script/rewriter.js
#	lib/coffee-script/scope.js
#	lib/coffee-script/sourcemap.js
#	package.json
2016-12-18 18:16:18 -08:00
Geoffrey Booth
ea269104bd Refactor docs resources section; reorganize outline; other minor corrections 2016-12-18 18:13:59 -08:00
Geoffrey Booth
78b21c2483 Fix releaseHeader for the initial release; should backport to v1 2016-12-18 15:57:04 -08:00
Geoffrey Booth
fc42b3ed24 Remove out-of-date info and dead link from Literate CoffeeScript section of the docs 2016-12-18 15:21:41 -08:00
Geoffrey Booth
c8a3c1a6fd Improvements to strings and comments docs; could be back-ported to v1 docs 2016-12-18 15:13:54 -08:00
Geoffrey Booth
58f9428c58 Colors 2016-12-18 03:54:57 -08:00
Geoffrey Booth
3c6e235b32 Show header bar on all breakpoints 2016-12-18 02:43:41 -08:00
Geoffrey Booth
35cfba06b4 Add fonts 2016-12-18 02:20:10 -08:00
Geoffrey Booth
f01dcd3894 Line spacing notes 2016-12-18 00:07:10 -08:00
Geoffrey Booth
e48fea1892 Fix sidebar scrolling on mobile 2016-12-16 00:17:11 -08:00
Geoffrey Booth
47bd5aca58 Fix menu button on regular browsers sized narrowly 2016-12-16 00:05:24 -08:00
Geoffrey Booth
0aa3166709 Updated compiled output 2016-12-15 23:59:11 -08:00
Geoffrey Booth
51aaef3d76 Add logo to top of content pane 2016-12-15 23:58:59 -08:00
Geoffrey Booth
d62f7adc9b Animated sidebar menu toggle button 2016-12-15 23:58:40 -08:00
Geoffrey Booth
853dd456a8 On mobile, the code examples are stacked 2016-12-15 23:19:50 -08:00
Geoffrey Booth
462a60da7b Mobile off canvas sidebar nav that slides in 2016-12-15 23:19:34 -08:00
Geoffrey Booth
4abd0fa06d Mobile header nav with menu button 2016-12-15 23:18:40 -08:00
Geoffrey Booth
b1313962a7 Merge branch 'master' of github.com:jashkenas/coffeescript into 2
# Conflicts:
#	Cakefile
#	lib/coffee-script/coffee-script.js
#	src/coffee-script.coffee
2016-12-15 21:13:52 -08:00
Geoffrey Booth
2a862d533f Merge branch 'master' of github.com:jashkenas/coffeescript into 2-docs
# Conflicts:
#	Cakefile
#	lib/coffee-script/coffee-script.js
#	src/coffee-script.coffee
2016-12-15 21:01:52 -08:00
Geoffrey Booth
a825336ba9 Merge branch 'master' of github.com:jashkenas/coffeescript into 2 2016-12-15 20:36:53 -08:00
Geoffrey Booth
a55dbc0c37 Merge branch 'improve-docs' into 2-docs 2016-12-14 00:06:39 -08:00
Geoffrey Booth
818d262843 Update packages, including new highlight.js which supports our newer keywords and triple backticks (docs output is unchanged) 2016-12-14 00:06:20 -08:00
Geoffrey Booth
e05a4e9000 Merge branch 'improve-docs' into 2-docs
# Conflicts:
#	documentation/v1/code.coffee
2016-12-13 23:50:41 -08:00
Geoffrey Booth
c3b3af8746 Fix margin 2016-12-13 23:49:26 -08:00
Geoffrey Booth
4889109b8d 2 docs output, first draft 2016-12-13 23:15:33 -08:00
Geoffrey Booth
93f1f3777c Wire up the buttons that run the code examples 2016-12-13 23:14:21 -08:00
Geoffrey Booth
14382abc2d Move code example HTML into a template where it belongs 2016-12-13 23:13:38 -08:00
Geoffrey Booth
85b3be9ce3 Move the codeFor function into versioned folders, so that v1 and v2 docs can have different example code blocks/editors 2016-12-12 23:42:33 -08:00
Geoffrey Booth
512b580820 Add CodeMirror for editable code examples; recompile CoffeeScript into JavaScript on change (WIP) 2016-12-12 22:56:31 -08:00
Geoffrey Booth
e90cf16965 Merge branch 'improve-docs' into 2-docs 2016-12-12 22:52:14 -08:00
Geoffrey Booth
59001f2fe3 Move the codeFor function into versioned folders, so that v1 and v2 docs can have different example code blocks/editors 2016-12-12 22:50:30 -08:00
Geoffrey Booth
db055bb916 V2 docs starting point: jQuery, Bootstrap, basic layout, nav with scrollspy 2016-12-11 20:33:54 -08:00
Geoffrey Booth
80fdc6ecc3 Merge branch 'improve-docs' into 2-docs 2016-12-11 20:29:35 -08:00
Geoffrey Booth
ff1725b367 Handle ids within the template, not in the Cakefile; remove marked’s auto-generated and conflicting ids 2016-12-11 20:29:08 -08:00
Geoffrey Booth
d278c730ea Merge branch 'improve-docs' into 2-docs 2016-12-11 17:12:53 -08:00
Geoffrey Booth
4aa0130a92 Use idiomatic markdown output for code blocks (<pre><code>) 2016-12-11 17:12:29 -08:00
Geoffrey Booth
c7ad70731a Merge branch 'improve-docs' into 2-docs 2016-12-11 16:55:12 -08:00
Geoffrey Booth
16dda9c496 Use idiomatic markdown output for code blocks (<pre><code>) 2016-12-11 15:46:38 -08:00
Geoffrey Booth
b2e10e597f Merge branch 'improve-docs' into 2-docs 2016-12-11 01:12:47 -08:00
Geoffrey Booth
b2bf505e4c Update gitignore 2016-12-11 01:06:21 -08:00
Geoffrey Booth
9c9058ebb4 Add marked 2016-12-11 01:06:11 -08:00
Geoffrey Booth
ece610d682 Revert "Split body into nav and body"
This reverts commit ec9e559ec0.
2016-12-11 00:18:46 -08:00
Geoffrey Booth
d61d4272ce Watch subtemplates 2016-12-11 00:13:53 -08:00
Geoffrey Booth
618e851cd6 Watch subtemplates 2016-12-11 00:13:44 -08:00
Geoffrey Booth
2167a7ab2e Merge branch 'improve-docs' into 2-docs 2016-12-11 00:03:24 -08:00
Geoffrey Booth
ec9e559ec0 Split body into nav and body 2016-12-11 00:02:38 -08:00
Geoffrey Booth
07e4047b7f Merge branch 'improve-docs' into 2-docs 2016-12-10 23:42:57 -08:00
Geoffrey Booth
7bb5ccfd80 Update output index.html 2016-12-10 23:35:18 -08:00
Geoffrey Booth
eb36d6e7a2 Get error messages tests to work in the browser 2016-12-10 23:25:20 -08:00
Geoffrey Booth
000dc03360 Move include logic into templates 2016-12-10 22:21:12 -08:00
Geoffrey Booth
0dd727e6eb Split building index.html and building test.html into two tasks; collapse the parts of releaseHeader into one compact function 2016-12-10 19:13:37 -08:00
Geoffrey Booth
6a845aa4f6 Split apart index.html into components that Cakefile assembles, so that we can add in logic to include different files for v1 versus v2 2016-12-10 18:53:58 -08:00
Geoffrey
9eb7c63158 Render the examples when we’re rendering index.html; they compile so quickly that there’s no need to pre-render them and save the intermediate .js files 2016-12-10 11:52:42 -08:00
Geoffrey
0f10082a21 Merge branch 'master' of github.com:jashkenas/coffeescript into improve-docs
# Conflicts:
#	documentation/index.html
2016-12-10 11:40:25 -08:00
Geoffrey
6bd087ebb2 Merge branch 'master' of github.com:jashkenas/coffeescript into 2
# Conflicts:
#	lib/coffee-script/browser.js
#	lib/coffee-script/cake.js
#	lib/coffee-script/coffee-script.js
#	lib/coffee-script/command.js
#	lib/coffee-script/grammar.js
#	lib/coffee-script/helpers.js
#	lib/coffee-script/index.js
#	lib/coffee-script/lexer.js
#	lib/coffee-script/nodes.js
#	lib/coffee-script/optparse.js
#	lib/coffee-script/register.js
#	lib/coffee-script/repl.js
#	lib/coffee-script/rewriter.js
#	lib/coffee-script/scope.js
#	lib/coffee-script/sourcemap.js
#	package.json
#	src/coffee-script.coffee
2016-12-10 11:06:14 -08:00
Geoffrey Booth
c7539e3310 Documentation is now markdown, converted to HTML on compilation 2016-12-08 00:20:52 -08:00
Geoffrey Booth
e139d59896 Merge branch 'master' of github.com:jashkenas/coffeescript into improve-docs 2016-12-08 00:20:41 -08:00
Geoffrey Booth
b481bd1f73 Merge branch 'master' into 2 2016-12-07 20:35:30 -08:00
Geoffrey Booth
2392a91033 Embed CSS; a bit unorthodox, but we’re a single page so there’s no point in separate .css files and their separate HTTP requests 2016-12-06 22:27:08 -08:00
Geoffrey Booth
0145bf397a Modernize favicon 2016-12-06 22:21:58 -08:00
Geoffrey Booth
d524dc8ad0 Optimize SVGs; replace logo PNG with SVG 2016-12-06 22:13:47 -08:00
Geoffrey Booth
d2fb1b5ce8 Replace tiny bitmaps with base64-encoded URIs 2016-12-06 21:54:30 -08:00
Geoffrey Booth
286eec74f9 Merge branch 'master' into 2
# Conflicts:
#	lib/coffee-script/lexer.js
#	lib/coffee-script/parser.js
2016-12-06 20:59:21 -08:00
Geoffrey Booth
fb3e1a8e65 Merge branch 'master' of github.com:jashkenas/coffeescript into 2
# Conflicts:
#	docs/v1/browser-compiler/coffee-script.js
#	lib/coffee-script/browser.js
#	lib/coffee-script/cake.js
#	lib/coffee-script/coffee-script.js
#	lib/coffee-script/command.js
#	lib/coffee-script/grammar.js
#	lib/coffee-script/helpers.js
#	lib/coffee-script/index.js
#	lib/coffee-script/lexer.js
#	lib/coffee-script/nodes.js
#	lib/coffee-script/optparse.js
#	lib/coffee-script/register.js
#	lib/coffee-script/repl.js
#	lib/coffee-script/rewriter.js
#	lib/coffee-script/scope.js
#	lib/coffee-script/sourcemap.js
#	package.json
#	src/coffee-script.coffee
#	src/nodes.coffee
2016-12-04 12:52:23 -08:00
Geoffrey Booth
ba3411a1ac Merge branch 'master' of github.com:jashkenas/coffeescript into 2 2016-11-30 19:51:55 -08:00
Geoffrey Booth
6685771255 Merge branch 'master' of github.com:jashkenas/coffeescript into 2
# Conflicts:
#	package.json
2016-11-29 08:26:49 -08:00
Geoffrey Booth
e38866b2bf Merge branch '2' of github.com:jashkenas/coffeescript into 2 2016-11-28 20:18:54 -08:00
Geoffrey Booth
6f6df0e48d Merge branch 'master' into 2 2016-11-28 20:18:43 -08:00
Gregory Huczynski
33e6242f6f [CS2] Output interpolated strings as template literals (#4365)
* Output interpolated strings as template literals.

* Update comments to use Markdown, so the annotated source reads well; remove TODOs per @lydell’s explanations
2016-11-28 06:05:51 -08:00
Geoffrey Booth
aff191fc53 Merge branch 'master' into 2 2016-11-27 20:49:22 -08:00
Geoffrey Booth
dd0a4f33ee Async example should follow its introduction 2016-11-27 19:38:41 -08:00
Geoffrey Booth
4d4839011b Merge branch '2' into async-docs 2016-11-27 19:06:24 -08:00
Geoffrey
0ef9eef87d Merge branch 'master' of github.com:jashkenas/coffeescript into 2 2016-11-27 10:50:31 -08:00
Geoffrey Booth
14a63149f4 Merge branch 'master' of github.com:jashkenas/coffeescript into 2
# Conflicts:
#	bower.json
2016-11-22 22:13:13 -08:00
Geoffrey Booth
ceca091816 Relocate example per new folder structure; update per final notes 2016-11-22 21:53:03 -08:00
Geoffrey Booth
bc471da960 Merge branch '2' into async-docs 2016-11-20 17:20:42 -08:00
Geoffrey Booth
6f595f8fd3 Merge branch 'master' into 2 2016-11-20 17:19:59 -08:00
Geoffrey Booth
42a10ba39e Merge branch '2' into async-docs
# Conflicts:
#	Cakefile
2016-11-19 18:52:00 -08:00
Geoffrey Booth
a21ce38fdf Merge branch 'ma'ter' into 2
# Conflicts:
#	lib/coffee-script/lexer.js
2016-11-19 11:19:50 -08:00
Geoffrey Booth
f8fa52a5d7 Merge branch 'master' of github.com:GeoffreyBooth/coffeescript into 2
# Conflicts:
#	lib/coffee-script/nodes.js
#	lib/coffee-script/parser.js
2016-11-18 10:34:13 -08:00
Geoffrey Booth
57ffe14fab Merge branch 'master' into 2
# Conflicts:
#	Cakefile
#	package.json
2016-11-17 22:00:36 -08:00
Geoffrey Booth
9524159e68 Merge branch 'master' into 2
# Conflicts:
#	lib/coffee-script/lexer.js
#	lib/coffee-script/nodes.js
#	lib/coffee-script/optparse.js
#	lib/coffee-script/rewriter.js
#	lib/coffee-script/scope.js
#	lib/coffee-script/sourcemap.js
#	src/nodes.coffee
#	test/classes.coffee
#	test/comments.coffee
#	test/error_messages.coffee
2016-11-10 22:51:39 -08:00
Gabe
dc25f462a9 keeping it simple 2016-11-06 11:26:34 -08:00
Chris Connelly
663595ba94 Compile splats in arrays and function calls to ES2015 splats (#4353)
Rather than compiling splats to arrays built using `Array#concat`, splats
are now compiled directly to ES2015 splats, e.g.

    f foo, arguments..., bar

    [ foo, arguments..., bar ]

Which used to be compiled to:

    f.apply(null, [foo].concat(slice.call(arguments), [bar]));

    [foo].concat(slice.call(arguments), [bar]);

Is now compiled to:

    f(foo, ...arguments, bar);

    [ foo, ...arguments, bar ];
2016-11-06 08:30:04 -08:00
Gabe
8b1c109b9c eliminate utterance queuing 2016-11-06 02:40:24 -08:00
Gabe
ea3f044816 refine sound example 2016-11-06 02:30:01 -08:00
Gabe
993f459880 switch to interactive sound example 2016-11-05 13:57:22 -07:00
Gabe
43e580321a change async code snippet 2016-11-05 02:54:48 -07:00
Gabe
327395d793 change async code snippet 2016-11-05 02:54:18 -07:00
Gabe
acb3c8d79c changed wording 2016-11-04 16:23:18 -07:00
Gabe
ad4a6c4877 doc fixes and updates 2016-11-04 14:20:27 -07:00
geebo
496fd5d3d3 Add Implicit Async Functions (#3757)
* changed jison acceptable versions

* added await support

* wrong function bug fix

* added tests for async/await

* invalid to have await, yield(from) in same function

* changed error handling and tests

* bug fix

* made error handling test more rigorous

* consolidated harmony test files

* added async constructor support and tests

* removed .orig files

* Fixed browser testing issue

* Minor cleanup

* Async test-suite and Cake support, simplified/removed funky tests

* Skip async/await tests when not supported in runtime

* cleanup

* Replaced polyfill with native JS async/await

* Oops

* Make 'async' reserved word

* Remove all async polyfills

* fix merge conflict

* make async testing opt-in

* restore test, remove confusing polyfill language

* Revert changes to test runners

* Only run async tests where async/await is supported (Node 7+ with --harmony, for now)

* remove 'async' from JS reserved words

* The async tests should use their own special async-capable version of `global.test`, which is only loaded for the async tests and only loaded by async-capable environments

* Reverting rename of `async`, it’s not a reserved word so there’s no longer a need for this change

* async test refactoring and additions

* oops

* sync

* better error reporting for `await`

* more stuff geoffrey wants

* fixed litcoffee tests

* change test title
2016-11-02 08:51:26 -07:00
Geoffrey Booth
a1bcf7f1d9 Merge branch 'master' into 2 2016-10-26 09:06:58 -07:00
Geoffrey Booth
9e0a4f844a Merge branch 'master' into 2
# Conflicts:
#	test/error_messages.coffee
2016-10-26 08:59:43 -07:00
Geoffrey Booth
fb2be8e1e3 [CS2] Output ES2015 arrow functions, default parameters, rest parameters (#4311)
* Eliminate wrapper around “bound” (arrow) functions; output `=>` for such functions

* Remove irrelevant (and breaking) tests

* Minor cleanup

* When a function parameter is a splat (i.e., it uses the ES2015 rest parameter syntax) output that parameter as ES2015

* Rearrange function parameters when one of the parameters is a splat and isn’t the last parameter (very WIP)

* Handle params like `@param`, adding assignment expressions for them when they appear; ensure splat parameter is last

* Add parameter names (not a text like `'\nValue IdentifierLiteral: a'`) to the scope, so that parameters can’t be deleted; move body-related lines together; more explanation of what’s going on

* For parameters with a default value, correctly add the parameter name to the function scope

* Handle expansions in function parameters: when an expansion is found, set the parameters to only be the original parameters left of the expansion, then an `...args` parameter; and in the function body define variables for the parameters to the right of the expansion, including setting default values

* Handle splat parameters the same way we handle expansions: if a splat parameter is found, it becomes the last parameter in the function definition, and all following parameters get declared in the function body. Fix the splat/rest parameter values after the post-splat parameters have been extracted from it. Clean up `Code.compileNode` so that we loop through the parameters only once, and we create all expressions using calls like `new IdentifierLiteral` rather than `@makeCode`.

* Fix parameter name when a parameter is a splat attached to `this` (e.g. `@param...`)

* Rather than assigning post-splat parameters based on index, use slice; passes test “Functions with splats being called with too few arguments”

* Dial back our w00t indentation

* Better parsing of parameter names (WIP)

* Refactor processing of splat/expansion parameters

* Fix assignment of default parameters for parameters that come after a splat

* Better check for whether a param is attached to `this`

* More understandable variable names

* For parameters after a splat or expansion, assign them similar to the 1.x destructuring method of using `arguments`, except only concern ourselves with the post-splat parameters instead of all parameters; and use the splat/expansion parameter name, since `arguments` in ES fat arrow functions refers to the parent function’s `arguments` rather than the fat arrow function’s arguments/parameters

* Don’t add unnamed parameters (like `[]` as a parameter) to the function scope

* Disallow multiple splat/expansion parameters in function definitions; disallow lone expansion parameters

* Fix `this` params not getting assigned if the parameter is after a splat parameter

* Allow names of function parameters attached to `this` to be reserved words

* Always add a statement to the function body defining a variable with its default value, if it has one, if the variable `== null`; this covers the case when ES doesn’t apply the default value when `null` is passed in as a value, but CoffeeScript expects `null` and `undefined` to act interchangeably

* Aftermath of having both `undefined` and `null` trigger the use of default values for parameters with default values

* More careful parsing of destructured parameters

* Fall back to processing destructured parameters in the function body, to account for `this` or default values within destructured objects

* Clean up comments

* Restore new bare function test, minus the arrow function part of it

* Test that bound/arrow functions aren’t overwriting the `arguments` object, which should refer to the parent scope’s `arguments` (like `this`)

* Follow ES2015 spec for parameter default values: `null` gets assigned as as `null`, not the default value

* Mimic ES default parameters behavior for parameters after a splat or expansion parameter

* Bound functions cannot be generators: remove no-longer-relevant test, add check to throw error if `yield` appears inside a bound (arrow) function

* Error for bound generator functions should underline the `yield`
2016-10-25 22:26:13 -07:00
Geoffrey Booth
c04c3850ec Merge branch 'master' into 2 2016-10-23 17:08:48 -07:00
Chris Connelly
f14e8b279c [CS2] Compile computed properties to ES2015 equivalent (#4338)
* Add missing compiled files

* Compile computed properties to ES2015 equivalent

This is a fairly small change that simplifies the code generation for computed
properties as they're now generated in the object initializer like regular
properties.
2016-10-23 17:00:51 -07:00
Geoffrey Booth
70a7265f35 Fix tabbed Literate CoffeeScript (#4345)
* failing test case

* add markdown parser for literate coffeescript

this should help to handle ligitimate markdown with indentation correctly

* Update generated code

* Update package.json

* Add `marked` dependency to browser version of CoffeeScript

* Update invertLiterate to use a randomly-generated token that we check for uniqueness, rather than a magic number that we hope might not occur in the code

* Fix typos
2016-10-23 08:37:51 -07:00
Geoffrey Booth
b35bb20a18 Upgrade dependencies 2016-10-22 11:54:05 -07:00
Geoffrey Booth
def685a4e1 Commit generated files that should've been committed as part of #4313 merge 2016-10-22 11:51:41 -07:00
Geoffrey Booth
8647e50941 Bump version in other files (but not documentation) 2016-10-22 11:50:44 -07:00
Geoffrey Booth
8b50fd0461 [CS2] Require Node 6.9.1+ (#4341)
* Node 6 deprecated `new Buffer` in favor of `Buffer.from` and `Buffer.alloc`; update our calls, and set the required version of Node to be >= 6.9.0, and set this to be 2.0.0-alpha for now

* Bump to Node version 6.9.1
2016-10-21 09:56:25 -07:00
Geoffrey Booth
01890cd415 Merge branch 'master' into 2 2016-10-18 23:10:00 -07:00
Geoffrey Booth
a1809277a0 Merge branch 'master' into 2 2016-10-17 21:22:28 -07:00
Geoffrey Booth
8138c663a8 Merge branch 'master' into 2 2016-10-01 11:21:07 -07:00
Jeremy Ashkenas
c5c4d7c8f8 Merge pull request #4313 from eelco/no-whitespace-mixing-strict
Don’t allow mixing spaces and tabs for indentation
2016-09-27 10:24:20 -04:00
Jeremy Ashkenas
f8b0c8049c Merge pull request #4318 from GeoffreyBooth/octal-and-binaries-as-is
Pass through octal and binary literals as-is
2016-09-27 10:22:23 -04:00
Geoffrey Booth
1d230fe055 Minor cleanup 2016-09-26 20:52:23 -07:00
Alexander Pánek
329b2d1cb2 Pass through octal and binary literals as-is
See https://github.com/coffeescript6/discuss/issues/45
2016-09-26 18:04:12 +02:00
Eelco Lempsink
bb40b1188c Don’t allow mixing different types of whitespace for indentation, per line. 2016-09-20 23:33:19 +02:00
Eelco Lempsink
98068611b1 Make sure the indentation is consistent with the previous level.
This prevents mixing spaces and tabs in the same ‘block’ of code.

Mixing is still allowed if each line uses the same mix and if the indentation level returns to 0.

This breaks the literate coffeescript test that mixes spaces and tabs.
2016-09-20 23:06:44 +02:00
188 changed files with 21999 additions and 11719 deletions

1
.gitignore vendored
View File

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

View File

@@ -4,6 +4,6 @@
* Before sending a pull request for a feature, be sure to have [tests](https://github.com/jashkenas/coffeescript/tree/master/test).
* 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).
* Use the same coding style as the rest of the [codebase](https://github.com/jashkenas/coffeescript/tree/master/src). If youre just getting started with CoffeeScript, theres 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 `coffee-script.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. Well do those things before cutting a new release. You _should,_ however, commit the updated compiled JavaScript files in `lib`.

121
Cakefile
View File

@@ -1,9 +1,10 @@
fs = require 'fs'
os = require 'os'
path = require 'path'
_ = require 'underscore'
{ spawn, exec, execSync } = require 'child_process'
CoffeeScript = require './lib/coffee-script'
helpers = require './lib/coffee-script/helpers'
CoffeeScript = require './lib/coffeescript'
helpers = require './lib/coffeescript/helpers'
# ANSI Terminal Colors.
bold = red = green = reset = ''
@@ -51,27 +52,21 @@ run = (args, callback) ->
buildParser = ->
helpers.extend global, require 'util'
require 'jison'
parser = require('./lib/coffee-script/grammar').parser.generate()
# Patch Jisons 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"""
fs.writeFileSync 'lib/coffee-script/parser.js', parser
# 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) ->
files = fs.readdirSync 'src'
files = ('src/' + file for file in files when file.match(/\.(lit)?coffee$/))
run ['-c', '-o', 'lib/coffee-script'].concat(files), callback
run ['-c', '-o', 'lib/coffeescript'].concat(files), callback
build = (callback) ->
buildParser()
buildExceptParser callback
testBuiltCode = (watch = no) ->
csPath = './lib/coffee-script'
csPath = './lib/coffeescript'
csDir = path.dirname require.resolve csPath
for mod of require.cache when csDir is mod[0 ... csDir.length]
@@ -116,17 +111,17 @@ 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 in ['helpers', 'rewriter', 'lexer', 'parser', 'scope', 'nodes', 'sourcemap', 'coffee-script', 'browser']
for name in ['helpers', 'rewriter', 'lexer', 'parser', 'scope', 'nodes', 'sourcemap', 'coffeescript', 'browser']
code += """
require['./#{name}'] = (function() {
var exports = {}, module = {exports: exports};
#{fs.readFileSync "lib/coffee-script/#{name}.js"}
#{fs.readFileSync "lib/coffeescript/#{name}.js"}
return module.exports;
})();
"""
@@ -135,7 +130,7 @@ task 'build:browser', 'build the merged script for inclusion in the browser', ->
var CoffeeScript = function() {
function require(path){ return require[path]; }
#{code}
return require['./coffee-script'];
return require['./browser'];
}();
if (typeof define === 'function' && define.amd) {
@@ -145,15 +140,23 @@ 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'
]
babel = require 'babel-core'
presets = []
# Exclude the `modules` plugin in order to not break the `}(this));`
# at the end of the above code block.
presets.push ['env', {modules: no}] unless process.env.TRANSFORM is 'false'
presets.push 'babili' 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
outputFolder = "docs/v#{majorVersion}/browser-compiler"
fs.mkdirSync outputFolder unless fs.existsSync outputFolder
fs.writeFileSync "#{outputFolder}/coffee-script.js", header + '\n' + code
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'
@@ -191,9 +194,19 @@ buildDocs = (watch = no) ->
codeFor = require "./documentation/v#{majorVersion}/code.coffee"
htmlFor = ->
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-Its rendering, per
# https://github.com/markdown-it/markdown-it/blob/master/docs/architecture.md#renderer
@@ -321,14 +334,14 @@ 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 'build:browser:full'
invoke 'doc:site'
invoke 'doc:test'
invoke 'doc:source'
task 'bench', 'quick benchmark of compilation time', ->
{Rewriter} = require './lib/coffee-script/rewriter'
sources = ['coffee-script', 'grammar', 'helpers', 'lexer', 'nodes', 'rewriter']
{Rewriter} = require './lib/coffeescript/rewriter'
sources = ['coffeescript', 'grammar', 'helpers', 'lexer', 'nodes', 'rewriter']
coffee = sources.map((name) -> fs.readFileSync "src/#{name}.coffee").join '\n'
litcoffee = fs.readFileSync("src/scope.litcoffee").toString()
fmt = (ms) -> " #{bold}#{ " #{ms}".slice -4 }#{reset} ms"
@@ -350,17 +363,25 @@ task 'bench', 'quick benchmark of compilation time', ->
# Run the CoffeeScript test suite.
runTests = (CoffeeScript) ->
CoffeeScript.register()
startTime = Date.now()
currentFile = null
passedTests = 0
failures = []
CoffeeScript.register() unless global.testingBrowser
startTime = Date.now()
# These are attached to `global` so that theyre accessible from within
# `test/async.coffee`, which has an async-capable version of
# `global.test`.
global.currentFile = null
global.passedTests = 0
global.failures = []
global[name] = func for name, func of require 'assert'
# Convenience aliases.
global.CoffeeScript = CoffeeScript
global.Repl = require './lib/coffee-script/repl'
global.Repl = require './lib/coffeescript/repl'
global.bold = bold
global.red = red
global.green = green
global.reset = reset
# Our test helper function for delimiting different test cases.
global.test = (description, fn) ->
@@ -407,12 +428,40 @@ runTests = (CoffeeScript) ->
task 'test', 'run the CoffeeScript language test suite', ->
runTests CoffeeScript
testResults = runTests CoffeeScript
process.exit 1 unless testResults
task 'test:browser', 'run the test suite against the merged browser script', ->
source = fs.readFileSync "docs/v#{majorVersion}/browser-compiler/coffee-script.js", 'utf-8'
source = fs.readFileSync "docs/v#{majorVersion}/browser-compiler/coffeescript.js", 'utf-8'
result = {}
global.testingBrowser = yes
(-> eval source).call result
runTests result.CoffeeScript
testResults = runTests result.CoffeeScript
process.exit 1 unless testResults
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()
try
buildLog = execSync "./node_modules/webpack/bin/webpack.js
--entry=./
--output-library=CoffeeScript
--output-library-target=commonjs2
--output-path=#{tmpdir}
--output-filename=coffeescript.js"
catch exception
console.error buildLog.toString()
throw exception
builtCompiler = path.join tmpdir, 'coffeescript.js'
CoffeeScript = require builtCompiler
global.testingBrowser = yes
testResults = runTests CoffeeScript
fs.unlinkSync builtCompiler
process.exit 1 unless testResults

View File

@@ -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 dont 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 youd 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

View File

@@ -2,6 +2,17 @@
var path = require('path');
var fs = require('fs');
var lib = path.join(path.dirname(fs.realpathSync(__filename)), '../lib');
require(lib + '/coffee-script/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;
}
}

View File

@@ -2,6 +2,17 @@
var path = require('path');
var fs = require('fs');
var lib = path.join(path.dirname(fs.realpathSync(__filename)), '../lib');
require(lib + '/coffee-script/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;
}
}

View File

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

View File

@@ -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

View File

@@ -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>

View File

@@ -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>
@@ -566,14 +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)
@@ -685,6 +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
@@ -754,7 +755,7 @@ can close multiple indents, so we need to know how far in we happen to be.</p>
<span class="hljs-keyword">return</span> indent.length
<span class="hljs-keyword">if</span> size &gt; @indent
<span class="hljs-keyword">if</span> noNewlines
<span class="hljs-keyword">if</span> noNewlines <span class="hljs-keyword">or</span> @tag() <span class="hljs-keyword">is</span> <span class="hljs-string">'RETURN'</span>
@indebt = size - @indent
@suppressNewlines()
<span class="hljs-keyword">return</span> indent.length
@@ -1262,7 +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>
@@ -1556,13 +1557,22 @@ not specified, the length of <code>value</code> will be used.</p>
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>]
<span class="hljs-string">'BIN?'</span>, <span class="hljs-string">'THROW'</span>, <span class="hljs-string">'EXTENDS'</span>, <span class="hljs-string">'DEFAULT'</span>]
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>
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@@ -1573,6 +1583,48 @@ not specified, the length of <code>value</code> will be used.</p>
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<p>surrogate pair</p>
</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>
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<p>Replace \u{…} with \uxxxx[\uxxxx] in strings and regexes</p>
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<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>
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<p>Validates escapes in strings and regexes.</p>
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@@ -1585,13 +1637,13 @@ not specified, the length of <code>value</code> will be used.</p>
STRING_INVALID_ESCAPE
match = invalidEscapeRegex.exec str
<span class="hljs-keyword">return</span> <span class="hljs-keyword">unless</span> match
[[], before, octal, hex, unicode] = 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> unicode}</span>"</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>
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<p>Constructs a string or regex by escaping certain characters.</p>
@@ -1623,11 +1675,11 @@ not specified, the length of <code>value</code> will be used.</p>
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<p>Ignore escaped backslashes.</p>
@@ -1646,11 +1698,11 @@ not specified, the length of <code>value</code> will be used.</p>
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<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>
@@ -1669,11 +1721,11 @@ location of a token (<code>token[2]</code>).</p>
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<h2 id="helper-functions">Helper functions</h2>
@@ -1682,11 +1734,11 @@ location of a token (<code>token[2]</code>).</p>
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<p><code>from</code> isnt 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>
@@ -1726,11 +1778,11 @@ loop. Try to detect when <code>from</code> is a variable identifier and when it
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<p><code>for i from from</code>, <code>for from from iterable</code></p>
@@ -1743,11 +1795,11 @@ loop. Try to detect when <code>from</code> is a variable identifier and when it
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<p><code>for i from iterable</code></p>
@@ -1758,11 +1810,11 @@ loop. Try to detect when <code>from</code> is a variable identifier and when it
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<p><code>for from…</code></p>
@@ -1774,11 +1826,11 @@ loop. Try to detect when <code>from</code> is a variable identifier and when it
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<p><code>for {from}…</code>, <code>for [from]…</code>, <code>for {a, from}…</code>, <code>for {a: from}…</code></p>
@@ -1792,11 +1844,11 @@ loop. Try to detect when <code>from</code> is a variable identifier and when it
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<h2 id="constants">Constants</h2>
@@ -1805,11 +1857,11 @@ loop. Try to detect when <code>from</code> is a variable identifier and when it
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<p>Keywords that CoffeeScript shares in common with JavaScript.</p>
@@ -1839,11 +1891,11 @@ loop. Try to detect when <code>from</code> is a variable identifier and when it
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<p>CoffeeScript-only keywords.</p>
@@ -1871,11 +1923,11 @@ COFFEE_KEYWORDS = COFFEE_KEYWORDS.concat COFFEE_ALIASES</pre></div></div>
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<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,
@@ -1894,11 +1946,11 @@ STRICT_PROSCRIBED = [<span class="hljs-string">'arguments'</span>, <span class="
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<p>The superset of both JavaScript keywords and reserved words, none of which may
be used as identifiers or properties.</p>
@@ -1910,11 +1962,11 @@ be used as identifiers or properties.</p>
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<p>The character code of the nasty Microsoft madness otherwise known as the BOM.</p>
@@ -1925,11 +1977,11 @@ be used as identifiers or properties.</p>
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<p>Token matching regexes.</p>
@@ -1972,11 +2024,11 @@ HERE_JSTOKEN = <span class="hljs-regexp">///^ ``` ((?: [^`\\] | \\[\s\S] | `
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<p>String-matching-regexes.</p>
@@ -1999,11 +2051,11 @@ HEREDOC_INDENT = <span class="hljs-regexp">/\n+([^\n\S]*)(?=\S)/g</span></pr
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<p>Regex-matching-regexes.</p>
@@ -2020,7 +2072,7 @@ 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]*$/</span>
HEREGEX = <span class="hljs-regexp">/// ^(?: [^\\/<span class="hljs-comment">#] | \\[\s\S] | /(?!//) | \#(?!\{) )* ///</span>
@@ -2037,11 +2089,11 @@ POSSIBLY_DIVISION = <span class="hljs-regexp">/// ^ /=?\s ///</span></pre></di
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<p>Other regexes.</p>
@@ -2056,7 +2108,8 @@ STRING_INVALID_ESCAPE = <span class="hljs-regexp">///
\\ (
?: (0[0-7]|[1-7]) <span class="hljs-comment"># octal escape</span>
| (x(?![\da-fA-F]{2}).{0,2}) <span class="hljs-comment"># hex escape</span>
| (u(?![\da-fA-F]{4}).{0,4}) <span class="hljs-comment"># unicode escape</span>
| (u\{(?![\da-fA-F]{1,}\})[^}]*\}?) <span class="hljs-comment"># unicode code point escape</span>
| (u(?!\{|[\da-fA-F]{4}).{0,4}) <span class="hljs-comment"># unicode escape</span>
)
///</span>
REGEX_INVALID_ESCAPE = <span class="hljs-regexp">///
@@ -2064,10 +2117,17 @@ REGEX_INVALID_ESCAPE = <span class="hljs-regexp">///
\\ (
?: (0[0-7]) <span class="hljs-comment"># octal escape</span>
| (x(?![\da-fA-F]{2}).{0,2}) <span class="hljs-comment"># hex escape</span>
| (u(?![\da-fA-F]{4}).{0,4}) <span class="hljs-comment"># unicode escape</span>
| (u\{(?![\da-fA-F]{1,}\})[^}]*\}?) <span class="hljs-comment"># unicode code point escape</span>
| (u(?!\{|[\da-fA-F]{4}).{0,4}) <span class="hljs-comment"># unicode escape</span>
)
///</span>
UNICODE_CODE_POINT_ESCAPE = <span class="hljs-regexp">///
( \\\\ ) <span class="hljs-comment"># make sure the escape isnt escaped</span>
|
\\u\{ ( [\da-fA-F]+ ) \}
///</span>g
LEADING_BLANK_LINE = <span class="hljs-regexp">/^[^\n\S]*\n/</span>
TRAILING_BLANK_LINE = <span class="hljs-regexp">/\n[^\n\S]*$/</span>
@@ -2076,11 +2136,11 @@ TRAILING_SPACES = <span class="hljs-regexp">/\s+$/</span></pre></div></div>
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<p>Compound assignment tokens.</p>
@@ -2094,11 +2154,11 @@ TRAILING_SPACES = <span class="hljs-regexp">/\s+$/</span></pre></div></div>
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<p>Unary tokens.</p>
@@ -2111,11 +2171,11 @@ UNARY_MATH = [<span class="hljs-string">'!'</span>, <span class="hljs-string">'~
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<p>Bit-shifting tokens.</p>
@@ -2126,11 +2186,11 @@ UNARY_MATH = [<span class="hljs-string">'!'</span>, <span class="hljs-string">'~
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<p>Comparison tokens.</p>
@@ -2141,11 +2201,11 @@ UNARY_MATH = [<span class="hljs-string">'!'</span>, <span class="hljs-string">'~
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<p>Mathematical tokens.</p>
@@ -2156,11 +2216,11 @@ UNARY_MATH = [<span class="hljs-string">'!'</span>, <span class="hljs-string">'~
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<p>Relational tokens that are negatable with <code>not</code> prefix.</p>
@@ -2171,11 +2231,11 @@ UNARY_MATH = [<span class="hljs-string">'!'</span>, <span class="hljs-string">'~
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<p>Boolean tokens.</p>
@@ -2186,11 +2246,11 @@ UNARY_MATH = [<span class="hljs-string">'!'</span>, <span class="hljs-string">'~
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<p>Tokens which could legitimately be invoked or indexed. An opening
parentheses or bracket following these tokens will be recorded as the start
@@ -2207,11 +2267,11 @@ INDEXABLE = CALLABLE.concat [
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<p>Tokens which a regular expression will never immediately follow (except spaced
CALLABLEs in some cases), but which a division operator can.</p>
@@ -2224,11 +2284,11 @@ CALLABLEs in some cases), but which a division operator can.</p>
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<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
@@ -2241,11 +2301,11 @@ avoid an ambiguity in the grammar.</p>
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<p>Additional indent in front of these is ignored.</p>

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@@ -3941,7 +3941,7 @@ CoffeeScript operations into their JavaScript equivalents.</p>
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<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>
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@@ -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>

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@@ -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>
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@@ -168,11 +168,16 @@ its internal array of tokens.</p>
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<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 its 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>
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<div class="content"><div class='highlight'><pre> rewrite: <span class="hljs-function"><span class="hljs-params">(@tokens)</span> -&gt;</span></pre></div></div>
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@@ -182,16 +187,12 @@ its internal array of tokens.</p>
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<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 its 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>
@@ -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 +738,22 @@ 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">when</span> isImplicitObject stackItem
stackItem[<span class="hljs-number">2</span>].sameLine = <span class="hljs-literal">no</span>
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 +763,11 @@ 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 +779,11 @@ 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 +797,11 @@ 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 didnt end with a comma
and the implicit object didnt start the line or the next line doesnt look like
@@ -801,11 +819,11 @@ 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 doesnt look like it belongs.
@@ -826,11 +844,11 @@ e = <span class="hljs-number">2</span>
</li>
<li id="section-33">
<li id="section-34">
<div class="annotation">
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<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 +866,11 @@ array further up the stack, so give it a chance.</p>
</li>
<li id="section-34">
<li id="section-35">
<div class="annotation">
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<a class="pilcrow" href="#section-35">&#182;</a>
</div>
<p>Add location data to all tokens generated by the rewriter.</p>
@@ -878,11 +896,11 @@ array further up the stack, so give it a chance.</p>
</li>
<li id="section-35">
<li id="section-36">
<div class="annotation">
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<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 +924,11 @@ 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 cant handle some single-line
expressions that lack ending delimiters. The <strong>Rewriter</strong> adds the implicit
@@ -928,7 +946,8 @@ 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 +979,11 @@ blocks are added.</p>
</li>
<li id="section-37">
<li id="section-38">
<div class="annotation">
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</div>
<p>Tag postfix conditionals as such, so that we can parse them with a
different precedence.</p>
@@ -993,11 +1012,11 @@ 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>
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</div>
<p>Generate the indentation tokens, based on another token on the same line.</p>
@@ -1018,11 +1037,11 @@ 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 +1052,14 @@ 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 +1071,18 @@ 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 +1102,11 @@ 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> were trying to fix up, so we can
look things up from either end.</p>
@@ -1099,11 +1118,11 @@ 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 +1138,11 @@ EXPRESSION_END = []
</li>
<li id="section-45">
<li id="section-46">
<div class="annotation">
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<a class="pilcrow" href="#section-46">&#182;</a>
</div>
<p>Tokens that indicate the close of a clause of an expression.</p>
@@ -1134,11 +1153,11 @@ EXPRESSION_END = []
</li>
<li id="section-46">
<li id="section-47">
<div class="annotation">
<div class="pilwrap ">
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<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 +1168,11 @@ EXPRESSION_END = []
</li>
<li id="section-47">
<li id="section-48">
<div class="annotation">
<div class="pilwrap ">
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<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 +1192,11 @@ IMPLICIT_UNSPACED_CALL = [<span class="hljs-string">'+'</span>, <span class="hlj
</li>
<li id="section-48">
<li id="section-49">
<div class="annotation">
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<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 +1208,11 @@ 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 cant disambiguate them, so we insert the implicit indentation.</p>
@@ -1206,11 +1225,11 @@ SINGLE_CLOSERS = [<span class="hljs-string">'TERMINATOR'</span>, <span class="
</li>
<li id="section-50">
<li id="section-51">
<div class="annotation">
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<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 +1240,11 @@ 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>

View File

@@ -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>

View File

@@ -1,400 +1,405 @@
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* CoffeeScript Compiler v1.12.5
* CoffeeScript Compiler v1.12.6
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* Copyright 2011, Jeremy Ashkenas
* Released under the MIT License
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f[a];break;case 11:this.$=b.addLocationDataFn(d[a],d[a])(new b.StatementLiteral(f[a]));break;case 27:this.$=b.addLocationDataFn(d[a],d[a])(new b.Op(f[a],new b.Value(new b.Literal(""))));break;case 28:case 249:case 250:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.Op(f[a-1],f[a]));break;case 29:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.Op(f[a-2].concat(f[a-1]),f[a]));break;case 30:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.Block);break;case 31:case 105:this.$=b.addLocationDataFn(d[a-2],d[a])(f[a-
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case 39:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.RegexWithInterpolations(f[a-1].args));break;case 41:this.$=b.addLocationDataFn(d[a],d[a])(new b.PassthroughLiteral(f[a]));break;case 43:this.$=b.addLocationDataFn(d[a],d[a])(new b.UndefinedLiteral);break;case 44:this.$=b.addLocationDataFn(d[a],d[a])(new b.NullLiteral);break;case 45:this.$=b.addLocationDataFn(d[a],d[a])(new b.BooleanLiteral(f[a]));break;case 46:this.$=b.addLocationDataFn(d[a],d[a])(new b.InfinityLiteral(f[a]));break;case 47:this.$=
b.addLocationDataFn(d[a],d[a])(new b.NaNLiteral);break;case 48:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.Assign(f[a-2],f[a]));break;case 49:this.$=b.addLocationDataFn(d[a-3],d[a])(new b.Assign(f[a-3],f[a]));break;case 50:this.$=b.addLocationDataFn(d[a-4],d[a])(new b.Assign(f[a-4],f[a-1]));break;case 51:case 87:case 92:case 93:case 95:case 96:case 97:case 222:case 223:this.$=b.addLocationDataFn(d[a],d[a])(new b.Value(f[a]));break;case 52:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.Assign(b.addLocationDataFn(d[a-
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b.addLocationDataFn(d[a],d[a])(new b.Comment(f[a]));break;case 67:this.$=b.addLocationDataFn(d[a-4],d[a])(new b.Code(f[a-3],f[a],f[a-1]));break;case 68:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.Code([],f[a],f[a-1]));break;case 69:this.$=b.addLocationDataFn(d[a],d[a])("func");break;case 70:this.$=b.addLocationDataFn(d[a],d[a])("boundfunc");break;case 73:case 110:this.$=b.addLocationDataFn(d[a],d[a])([]);break;case 74:case 111:case 130:case 150:case 182:case 224:this.$=b.addLocationDataFn(d[a],
d[a])([f[a]]);break;case 75:case 112:case 131:case 151:case 183:this.$=b.addLocationDataFn(d[a-2],d[a])(f[a-2].concat(f[a]));break;case 76:case 113:case 132:case 152:case 184:this.$=b.addLocationDataFn(d[a-3],d[a])(f[a-3].concat(f[a]));break;case 77:case 114:case 134:case 154:case 186:this.$=b.addLocationDataFn(d[a-5],d[a])(f[a-5].concat(f[a-2]));break;case 78:this.$=b.addLocationDataFn(d[a],d[a])(new b.Param(f[a]));break;case 79:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.Param(f[a-1],null,!0));
break;case 80:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.Param(f[a-2],f[a]));break;case 81:case 189:this.$=b.addLocationDataFn(d[a],d[a])(new b.Expansion);break;case 86:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.Splat(f[a-1]));break;case 88:this.$=b.addLocationDataFn(d[a-1],d[a])(f[a-1].add(f[a]));break;case 89:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.Value(f[a-1],[].concat(f[a])));break;case 99:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.Access(f[a]));break;case 100:this.$=b.addLocationDataFn(d[a-
1],d[a])(new b.Access(f[a],"soak"));break;case 101:this.$=b.addLocationDataFn(d[a-1],d[a])([b.addLocationDataFn(d[a-1])(new b.Access(new b.PropertyName("prototype"))),b.addLocationDataFn(d[a])(new b.Access(f[a]))]);break;case 102:this.$=b.addLocationDataFn(d[a-1],d[a])([b.addLocationDataFn(d[a-1])(new b.Access(new b.PropertyName("prototype"),"soak")),b.addLocationDataFn(d[a])(new b.Access(f[a]))]);break;case 103:this.$=b.addLocationDataFn(d[a],d[a])(new b.Access(new b.PropertyName("prototype")));
break;case 106:this.$=b.addLocationDataFn(d[a-1],d[a])(b.extend(f[a],{soak:!0}));break;case 107:this.$=b.addLocationDataFn(d[a],d[a])(new b.Index(f[a]));break;case 108:this.$=b.addLocationDataFn(d[a],d[a])(new b.Slice(f[a]));break;case 109:this.$=b.addLocationDataFn(d[a-3],d[a])(new b.Obj(f[a-2],f[a-3].generated));break;case 115:this.$=b.addLocationDataFn(d[a],d[a])(new b.Class);break;case 116:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.Class(null,null,f[a]));break;case 117:this.$=b.addLocationDataFn(d[a-
2],d[a])(new b.Class(null,f[a]));break;case 118:this.$=b.addLocationDataFn(d[a-3],d[a])(new b.Class(null,f[a-1],f[a]));break;case 119:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.Class(f[a]));break;case 120:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.Class(f[a-1],null,f[a]));break;case 121:this.$=b.addLocationDataFn(d[a-3],d[a])(new b.Class(f[a-2],f[a]));break;case 122:this.$=b.addLocationDataFn(d[a-4],d[a])(new b.Class(f[a-3],f[a-1],f[a]));break;case 123:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.ImportDeclaration(null,
f[a]));break;case 124:this.$=b.addLocationDataFn(d[a-3],d[a])(new b.ImportDeclaration(new b.ImportClause(f[a-2],null),f[a]));break;case 125:this.$=b.addLocationDataFn(d[a-3],d[a])(new b.ImportDeclaration(new b.ImportClause(null,f[a-2]),f[a]));break;case 126:this.$=b.addLocationDataFn(d[a-4],d[a])(new b.ImportDeclaration(new b.ImportClause(null,new b.ImportSpecifierList([])),f[a]));break;case 127:this.$=b.addLocationDataFn(d[a-6],d[a])(new b.ImportDeclaration(new b.ImportClause(null,new b.ImportSpecifierList(f[a-
4])),f[a]));break;case 128:this.$=b.addLocationDataFn(d[a-5],d[a])(new b.ImportDeclaration(new b.ImportClause(f[a-4],f[a-2]),f[a]));break;case 129:this.$=b.addLocationDataFn(d[a-8],d[a])(new b.ImportDeclaration(new b.ImportClause(f[a-7],new b.ImportSpecifierList(f[a-4])),f[a]));break;case 133:case 153:case 169:case 185:this.$=b.addLocationDataFn(d[a-3],d[a])(f[a-2]);break;case 135:this.$=b.addLocationDataFn(d[a],d[a])(new b.ImportSpecifier(f[a]));break;case 136:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.ImportSpecifier(f[a-
2],f[a]));break;case 137:this.$=b.addLocationDataFn(d[a],d[a])(new b.ImportSpecifier(new b.Literal(f[a])));break;case 138:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.ImportSpecifier(new b.Literal(f[a-2]),f[a]));break;case 139:this.$=b.addLocationDataFn(d[a],d[a])(new b.ImportDefaultSpecifier(f[a]));break;case 140:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.ImportNamespaceSpecifier(new b.Literal(f[a-2]),f[a]));break;case 141:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.ExportNamedDeclaration(new b.ExportSpecifierList([])));
break;case 142:this.$=b.addLocationDataFn(d[a-4],d[a])(new b.ExportNamedDeclaration(new b.ExportSpecifierList(f[a-2])));break;case 143:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.ExportNamedDeclaration(f[a]));break;case 144:this.$=b.addLocationDataFn(d[a-3],d[a])(new b.ExportNamedDeclaration(new b.Assign(f[a-2],f[a],null,{moduleDeclaration:"export"})));break;case 145:this.$=b.addLocationDataFn(d[a-4],d[a])(new b.ExportNamedDeclaration(new b.Assign(f[a-3],f[a],null,{moduleDeclaration:"export"})));
break;case 146:this.$=b.addLocationDataFn(d[a-5],d[a])(new b.ExportNamedDeclaration(new b.Assign(f[a-4],f[a-1],null,{moduleDeclaration:"export"})));break;case 147:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.ExportDefaultDeclaration(f[a]));break;case 148:this.$=b.addLocationDataFn(d[a-3],d[a])(new b.ExportAllDeclaration(new b.Literal(f[a-2]),f[a]));break;case 149:this.$=b.addLocationDataFn(d[a-6],d[a])(new b.ExportNamedDeclaration(new b.ExportSpecifierList(f[a-4]),f[a]));break;case 155:this.$=b.addLocationDataFn(d[a],
d[a])(new b.ExportSpecifier(f[a]));break;case 156:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.ExportSpecifier(f[a-2],f[a]));break;case 157:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.ExportSpecifier(f[a-2],new b.Literal(f[a])));break;case 158:this.$=b.addLocationDataFn(d[a],d[a])(new b.ExportSpecifier(new b.Literal(f[a])));break;case 159:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.ExportSpecifier(new b.Literal(f[a-2]),f[a]));break;case 160:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.TaggedTemplateCall(f[a-
2],f[a],f[a-1]));break;case 161:case 162:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.Call(f[a-2],f[a],f[a-1]));break;case 164:this.$=b.addLocationDataFn(d[a],d[a])(new b.SuperCall);break;case 165:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.SuperCall(f[a]));break;case 166:this.$=b.addLocationDataFn(d[a],d[a])(!1);break;case 167:this.$=b.addLocationDataFn(d[a],d[a])(!0);break;case 168:this.$=b.addLocationDataFn(d[a-1],d[a])([]);break;case 170:case 171:this.$=b.addLocationDataFn(d[a],d[a])(new b.Value(new b.ThisLiteral));
break;case 172:this.$=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(f[a]))],"this"));break;case 173:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.Arr([]));break;case 174:this.$=b.addLocationDataFn(d[a-3],d[a])(new b.Arr(f[a-2]));break;case 175:this.$=b.addLocationDataFn(d[a],d[a])("inclusive");break;case 176:this.$=b.addLocationDataFn(d[a],d[a])("exclusive");break;case 177:this.$=b.addLocationDataFn(d[a-4],d[a])(new b.Range(f[a-
3],f[a-1],f[a-2]));break;case 178:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.Range(f[a-2],f[a],f[a-1]));break;case 179:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.Range(f[a-1],null,f[a]));break;case 180:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.Range(null,f[a],f[a-1]));break;case 181:this.$=b.addLocationDataFn(d[a],d[a])(new b.Range(null,null,f[a]));break;case 191:this.$=b.addLocationDataFn(d[a-2],d[a])([].concat(f[a-2],f[a]));break;case 192:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.Try(f[a]));
break;case 193:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.Try(f[a-1],f[a][0],f[a][1]));break;case 194:this.$=b.addLocationDataFn(d[a-3],d[a])(new b.Try(f[a-2],null,null,f[a]));break;case 195:this.$=b.addLocationDataFn(d[a-4],d[a])(new b.Try(f[a-3],f[a-2][0],f[a-2][1],f[a]));break;case 196:this.$=b.addLocationDataFn(d[a-2],d[a])([f[a-1],f[a]]);break;case 197:this.$=b.addLocationDataFn(d[a-2],d[a])([b.addLocationDataFn(d[a-1])(new b.Value(f[a-1])),f[a]]);break;case 198:this.$=b.addLocationDataFn(d[a-
1],d[a])([null,f[a]]);break;case 199:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.Throw(f[a]));break;case 200:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.Parens(f[a-1]));break;case 201:this.$=b.addLocationDataFn(d[a-4],d[a])(new b.Parens(f[a-2]));break;case 202:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.While(f[a]));break;case 203:this.$=b.addLocationDataFn(d[a-3],d[a])(new b.While(f[a-2],{guard:f[a]}));break;case 204:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.While(f[a],{invert:!0}));break;
case 205:this.$=b.addLocationDataFn(d[a-3],d[a])(new b.While(f[a-2],{invert:!0,guard:f[a]}));break;case 206:this.$=b.addLocationDataFn(d[a-1],d[a])(f[a-1].addBody(f[a]));break;case 207:case 208:this.$=b.addLocationDataFn(d[a-1],d[a])(f[a].addBody(b.addLocationDataFn(d[a-1])(b.Block.wrap([f[a-1]]))));break;case 209:this.$=b.addLocationDataFn(d[a],d[a])(f[a]);break;case 210:this.$=b.addLocationDataFn(d[a-1],d[a])((new b.While(b.addLocationDataFn(d[a-1])(new b.BooleanLiteral("true")))).addBody(f[a]));
break;case 211:this.$=b.addLocationDataFn(d[a-1],d[a])((new b.While(b.addLocationDataFn(d[a-1])(new b.BooleanLiteral("true")))).addBody(b.addLocationDataFn(d[a])(b.Block.wrap([f[a]]))));break;case 212:case 213:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.For(f[a-1],f[a]));break;case 214:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.For(f[a],f[a-1]));break;case 215:this.$=b.addLocationDataFn(d[a-1],d[a])({source:b.addLocationDataFn(d[a])(new b.Value(f[a]))});break;case 216:this.$=b.addLocationDataFn(d[a-
3],d[a])({source:b.addLocationDataFn(d[a-2])(new b.Value(f[a-2])),step:f[a]});break;case 217:b=b.addLocationDataFn(d[a-1],d[a]);f[a].own=f[a-1].own;f[a].ownTag=f[a-1].ownTag;f[a].name=f[a-1][0];f[a].index=f[a-1][1];this.$=b(f[a]);break;case 218:this.$=b.addLocationDataFn(d[a-1],d[a])(f[a]);break;case 219:c=b.addLocationDataFn(d[a-2],d[a]);f[a].own=!0;f[a].ownTag=b.addLocationDataFn(d[a-1])(new b.Literal(f[a-1]));this.$=c(f[a]);break;case 225:this.$=b.addLocationDataFn(d[a-2],d[a])([f[a-2],f[a]]);
break;case 226:this.$=b.addLocationDataFn(d[a-1],d[a])({source:f[a]});break;case 227:this.$=b.addLocationDataFn(d[a-1],d[a])({source:f[a],object:!0});break;case 228:this.$=b.addLocationDataFn(d[a-3],d[a])({source:f[a-2],guard:f[a]});break;case 229:this.$=b.addLocationDataFn(d[a-3],d[a])({source:f[a-2],guard:f[a],object:!0});break;case 230:this.$=b.addLocationDataFn(d[a-3],d[a])({source:f[a-2],step:f[a]});break;case 231:this.$=b.addLocationDataFn(d[a-5],d[a])({source:f[a-4],guard:f[a-2],step:f[a]});
break;case 232:this.$=b.addLocationDataFn(d[a-5],d[a])({source:f[a-4],step:f[a-2],guard:f[a]});break;case 233:this.$=b.addLocationDataFn(d[a-1],d[a])({source:f[a],from:!0});break;case 234:this.$=b.addLocationDataFn(d[a-3],d[a])({source:f[a-2],guard:f[a],from:!0});break;case 235:this.$=b.addLocationDataFn(d[a-4],d[a])(new b.Switch(f[a-3],f[a-1]));break;case 236:this.$=b.addLocationDataFn(d[a-6],d[a])(new b.Switch(f[a-5],f[a-3],f[a-1]));break;case 237:this.$=b.addLocationDataFn(d[a-3],d[a])(new b.Switch(null,
f[a-1]));break;case 238:this.$=b.addLocationDataFn(d[a-5],d[a])(new b.Switch(null,f[a-3],f[a-1]));break;case 240:this.$=b.addLocationDataFn(d[a-1],d[a])(f[a-1].concat(f[a]));break;case 241:this.$=b.addLocationDataFn(d[a-2],d[a])([[f[a-1],f[a]]]);break;case 242:this.$=b.addLocationDataFn(d[a-3],d[a])([[f[a-2],f[a-1]]]);break;case 243:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.If(f[a-1],f[a],{type:f[a-2]}));break;case 244:this.$=b.addLocationDataFn(d[a-4],d[a])(f[a-4].addElse(b.addLocationDataFn(d[a-
2],d[a])(new b.If(f[a-1],f[a],{type:f[a-2]}))));break;case 246:this.$=b.addLocationDataFn(d[a-2],d[a])(f[a-2].addElse(f[a]));break;case 247:case 248:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.If(f[a],b.addLocationDataFn(d[a-2])(b.Block.wrap([f[a-2]])),{type:f[a-1],statement:!0}));break;case 251:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.Op("-",f[a]));break;case 252:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.Op("+",f[a]));break;case 253:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.Op("--",
f[a]));break;case 254:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.Op("++",f[a]));break;case 255:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.Op("--",f[a-1],null,!0));break;case 256:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.Op("++",f[a-1],null,!0));break;case 257:this.$=b.addLocationDataFn(d[a-1],d[a])(new b.Existence(f[a-1]));break;case 258:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.Op("+",f[a-2],f[a]));break;case 259:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.Op("-",f[a-2],f[a]));break;
case 260:case 261:case 262:case 263:case 264:case 265:case 266:case 267:case 268:case 269:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.Op(f[a-1],f[a-2],f[a]));break;case 270:d=b.addLocationDataFn(d[a-2],d[a]);f="!"===f[a-1].charAt(0)?(new b.Op(f[a-1].slice(1),f[a-2],f[a])).invert():new b.Op(f[a-1],f[a-2],f[a]);this.$=d(f);break;case 271:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.Assign(f[a-2],f[a],f[a-1]));break;case 272:this.$=b.addLocationDataFn(d[a-4],d[a])(new b.Assign(f[a-4],f[a-1],f[a-3]));
break;case 273:this.$=b.addLocationDataFn(d[a-3],d[a])(new b.Assign(f[a-3],f[a],f[a-2]));break;case 274:this.$=b.addLocationDataFn(d[a-2],d[a])(new b.Extends(f[a-2],f[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:t,33:70,34:g,37:55,38:v,39:80,40:p,41:l,43:57,44:G,45:F,47:27,48:x,49:w,50:K,51:M,52:I,53:z,54:26,60:71,61:E,62:N,63:k,66:33,67:m,68:q,74:53,75:54,77:40,79:28,80:29,81:30,92:r,95:h,
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84:Sa,85:Fa,87:Na,90:Oa,113:Ka}),a(ta,[2,15],{86:114,109:117,78:118,82:Ra,83:Ga,84:Sa,85:Fa,87:Na,90:Oa,113:Ka,114:ua}),a(ta,[2,16]),a(ta,[2,17]),a(ta,[2,18]),a(ta,[2,19]),a(ta,[2,20]),a(ta,[2,21]),a(ta,[2,22]),a(ta,[2,23]),a(ta,[2,24]),a(ta,[2,25]),a(ta,[2,26]),a(ya,[2,9]),a(ya,[2,10]),a(ya,[2,11]),a(ya,[2,12]),a(ya,[2,13]),a([1,6,32,42,131,133,135,139,156,163,164,165,166,167,168,169,170,171,172,173,174],na,{15:7,16:8,17:9,18:10,19:11,20:12,21:13,22:14,23:15,24:16,25:17,26:18,27:19,10:20,11:21,13:23,
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C&&(this.variable.front=!0);f=this.variable.compileToFragments(a,h);if("object"===this.context){if(b=Ca(f),0<=Ha.call(m,b))f.unshift(this.makeCode('"')),f.push(this.makeCode('"'));return f.concat(this.makeCode(": "),n)}b=f.concat(this.makeCode(" "+(this.context||"\x3d")+" "),n);return a.level<=h?b:this.wrapInBraces(b)};b.prototype.compilePatternMatch=function(a){var c,f,d,e,g,n,m,q,r,p,l,t,w,D,C,v;D=a.level===u;q=this.value;t=this.variable.base.objects;if(!(w=t.length))return f=q.compileToFragments(a),
a.level>=y?this.wrapInBraces(f):f;l=t[0];1===w&&l instanceof x&&l.error("Destructuring assignment has no target");n=this.variable.isObject();if(D&&1===w&&!(l instanceof Q))return d=null,l instanceof b&&"object"===l.context?(f=l,e=f.variable,g=e.base,l=f.value,l instanceof b&&(d=l.value,l=l.variable)):(l instanceof b&&(d=l.value,l=l.variable),g=n?l["this"]?l.properties[0].name:new P(l.unwrap().value):new R(0)),c=g.unwrap()instanceof P,q=new L(q),q.properties.push(new (c?va:k)(g)),(p=Ga(l.unwrap().value))&&
l.error(p),d&&(q=new A("?",q,d)),(new b(l,q,null,{param:this.param})).compileToFragments(a,u);C=q.compileToFragments(a,h);v=Ca(C);f=[];e=!1;q.unwrap()instanceof z&&!this.variable.assigns(v)||(f.push([this.makeCode((d=a.scope.freeVariable("ref"))+" \x3d ")].concat(Aa.call(C))),C=[this.makeCode(d)],v=d);d=q=0;for(r=t.length;q<r;d=++q){l=t[d];g=d;if(!e&&l instanceof Q)p=l.name.unwrap().value,l=l.unwrap(),g=w+" \x3c\x3d "+v+".length ? "+ya("slice",a)+".call("+v+", "+d,(c=w-d-1)?(m=a.scope.freeVariable("i",
{single:!0}),g+=", "+m+" \x3d "+v+".length - "+c+") : ("+m+" \x3d "+d+", [])"):g+=") : []",g=new B(g),e=m+"++";else if(!e&&l instanceof x){if(c=w-d-1)1===c?e=v+".length - 1":(m=a.scope.freeVariable("i",{single:!0}),g=new B(m+" \x3d "+v+".length - "+c),e=m+"++",f.push(g.compileToFragments(a,h)));continue}else(l instanceof Q||l instanceof x)&&l.error("multiple splats/expansions are disallowed in an assignment"),d=null,l instanceof b&&"object"===l.context?(g=l.variable,g=g.base,l=l.value,l instanceof
b&&(d=l.value,l=l.variable)):(l instanceof b&&(d=l.value,l=l.variable),g=n?l["this"]?l.properties[0].name:new P(l.unwrap().value):new B(e||g)),p=l.unwrap().value,c=g.unwrap()instanceof P,g=new L(new B(v),[new (c?va:k)(g)]),d&&(g=new A("?",g,d));null!=p&&(p=Ga(p))&&l.error(p);f.push((new b(l,g,null,{param:this.param,subpattern:!0})).compileToFragments(a,h))}D||this.subpattern||f.push(C);f=this.joinFragmentArrays(f,", ");return a.level<h?f:this.wrapInBraces(f)};b.prototype.compileConditional=function(a){var c,
f;f=this.variable.cacheReference(a);c=f[0];f=f[1];c.properties.length||!(c.base instanceof B)||c.base instanceof ha||a.scope.check(c.base.value)||this.variable.error('the variable "'+c.base.value+"\" can't be assigned with "+this.context+" because it has not been declared before");if(0<=Ha.call(this.context,"?"))return a.isExistentialEquals=!0,(new E(new F(c),f,{type:"if"})).addElse(new b(f,this.value,"\x3d")).compileToFragments(a);c=(new A(this.context.slice(0,-1),c,new b(f,this.value,"\x3d"))).compileToFragments(a);
return a.level<=h?c:this.wrapInBraces(c)};b.prototype.compileSpecialMath=function(a){var c,f;f=this.variable.cacheReference(a);c=f[0];f=f[1];return(new b(c,new A(this.context.slice(0,-1),f,this.value))).compileToFragments(a)};b.prototype.compileSplice=function(a){var b,f,d,c,e,g;c=this.variable.properties.pop().range;d=c.from;b=c.to;f=c.exclusive;g=this.variable.compile(a);d?(e=this.cacheToCodeFragments(d.cache(a,y)),c=e[0],e=e[1]):c=e="0";b?null!=d&&d.isNumber()&&b.isNumber()?(b=b.compile(a)-e,f||
(b+=1)):(b=b.compile(a,q)+" - "+e,f||(b+=" + 1")):b="9e9";f=this.value.cache(a,h);d=f[0];f=f[1];b=[].concat(this.makeCode("[].splice.apply("+g+", ["+c+", "+b+"].concat("),d,this.makeCode(")), "),f);return a.level>u?this.wrapInBraces(b):b};return b}(a);e.Code=p=function(a){function b(a,b,f){this.params=a||[];this.body=b||new c;this.bound="boundfunc"===f;this.isGenerator=!!this.body.contains(function(a){return a instanceof A&&a.isYield()||a instanceof qa})}na(b,a);b.prototype.children=["params","body"];
b.prototype.isStatement=function(){return!!this.ctor};b.prototype.jumps=H;b.prototype.makeScope=function(a){return new J(a,this.body,this)};b.prototype.compileNode=function(a){var e,f,d,n,h,k,m,r,l,p,y,u,t;this.bound&&null!=(f=a.scope.method)&&f.bound&&(this.context=a.scope.method.context);if(this.bound&&!this.context)return this.context="_this",f=new b([new W(new z(this.context))],new c([this])),f=new g(f,[new ha]),f.updateLocationDataIfMissing(this.locationData),f.compileNode(a);a.scope=X(a,"classScope")||
this.makeScope(a.scope);a.scope.shared=X(a,"sharedScope");a.indent+=da;delete a.bare;delete a.isExistentialEquals;f=[];e=[];r=this.params;n=0;for(k=r.length;n<k;n++)m=r[n],m instanceof x||a.scope.parameter(m.asReference(a));r=this.params;n=0;for(k=r.length;n<k;n++)if(m=r[n],m.splat||m instanceof x){n=this.params;h=0;for(m=n.length;h<m;h++)l=n[h],l instanceof x||!l.name.value||a.scope.add(l.name.value,"var",!0);h=new V(new L(new pa(function(){var b,d,f,c;f=this.params;c=[];d=0;for(b=f.length;d<b;d++)l=
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f[d],f[d]=l.compileToFragments(a),a.scope.parameter(Ca(f[d]));u=[];this.eachParamName(function(a,b){0<=Ha.call(u,a)&&b.error("multiple parameters named "+a);return u.push(a)});m||this.noReturn||this.body.makeReturn();d="function";this.isGenerator&&(d+="*");this.ctor&&(d+=" "+this.name);e=[this.makeCode(d+"(")];d=m=0;for(h=f.length;m<h;d=++m)l=f[d],d&&e.push(this.makeCode(", ")),e.push.apply(e,l);e.push(this.makeCode(") {"));this.body.isEmpty()||(e=e.concat(this.makeCode("\n"),this.body.compileWithDeclarations(a),
this.makeCode("\n"+this.tab)));e.push(this.makeCode("}"));return this.ctor?[this.makeCode(this.tab)].concat(Aa.call(e)):this.front||a.level>=q?this.wrapInBraces(e):e};b.prototype.eachParamName=function(a){var b,f,d,c,e;c=this.params;e=[];b=0;for(f=c.length;b<f;b++)d=c[b],e.push(d.eachName(a));return e};b.prototype.traverseChildren=function(a,c){if(a)return b.__super__.traverseChildren.call(this,a,c)};return b}(a);e.Param=W=function(a){function b(a,b,f){this.name=a;this.value=b;this.splat=f;(a=Ga(this.name.unwrapAll().value))&&
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b=new L(b);this.splat&&(b=new Q(b));b.updateLocationDataIfMissing(this.locationData);return this.reference=b};b.prototype.isComplex=function(){return this.name.isComplex()};b.prototype.eachName=function(a,b){var f,d,c,e;null==b&&(b=this.name);f=function(b){return a("@"+b.properties[0].name.value,b)};if(b instanceof B)return a(b.value,b);if(b instanceof L)return f(b);b=null!=(d=b.objects)?d:[];d=0;for(c=b.length;d<c;d++)e=b[d],e instanceof V&&null==e.context&&(e=e.variable),e instanceof V?(e.value instanceof
V&&(e=e.value),this.eachName(a,e.value.unwrap())):e instanceof Q?(e=e.name.unwrap(),a(e.value,e)):e instanceof L?e.isArray()||e.isObject()?this.eachName(a,e.base):e["this"]?f(e):a(e.base.value,e.base):e instanceof x||e.error("illegal parameter "+e.compile())};return b}(a);e.Splat=Q=function(a){function b(a){this.name=a.compile?a:new B(a)}na(b,a);b.prototype.children=["name"];b.prototype.isAssignable=fa;b.prototype.assigns=function(a){return this.name.assigns(a)};b.prototype.compileToFragments=function(a){return this.name.compileToFragments(a)};
b.prototype.unwrap=function(){return this.name};b.compileSplattedArray=function(a,c,f){var d,e,g,n,m,k;for(n=-1;(d=c[++n])&&!(d instanceof b););if(n>=c.length)return[];if(1===c.length)return d=c[0],c=d.compileToFragments(a,h),f?c:[].concat(d.makeCode(ya("slice",a)+".call("),c,d.makeCode(")"));f=c.slice(n);g=m=0;for(k=f.length;m<k;g=++m)d=f[g],e=d.compileToFragments(a,h),f[g]=d instanceof b?[].concat(d.makeCode(ya("slice",a)+".call("),e,d.makeCode(")")):[].concat(d.makeCode("["),e,d.makeCode("]"));
if(0===n)return d=c[0],a=d.joinFragmentArrays(f.slice(1),", "),f[0].concat(d.makeCode(".concat("),a,d.makeCode(")"));m=c.slice(0,n);k=[];e=0;for(g=m.length;e<g;e++)d=m[e],k.push(d.compileToFragments(a,h));d=c[0].joinFragmentArrays(k,", ");a=c[n].joinFragmentArrays(f,", ");f=c[c.length-1];return[].concat(c[0].makeCode("["),d,c[n].makeCode("].concat("),a,f.makeCode(")"))};return b}(a);e.Expansion=x=function(a){function b(){return b.__super__.constructor.apply(this,arguments)}na(b,a);b.prototype.isComplex=
H;b.prototype.compileNode=function(a){return this.error("Expansion must be used inside a destructuring assignment or parameter list")};b.prototype.asReference=function(a){return this};b.prototype.eachName=function(a){};return b}(a);e.While=w=function(a){function b(a,b){this.condition=null!=b&&b.invert?a.invert():a;this.guard=null!=b?b.guard:void 0}na(b,a);b.prototype.children=["condition","guard","body"];b.prototype.isStatement=fa;b.prototype.makeReturn=function(a){if(a)return b.__super__.makeReturn.apply(this,
arguments);this.returns=!this.jumps({loop:!0});return this};b.prototype.addBody=function(a){this.body=a;return this};b.prototype.jumps=function(){var a,b,f,d;a=this.body.expressions;if(!a.length)return!1;b=0;for(d=a.length;b<d;b++)if(f=a[b],f=f.jumps({loop:!0}))return f;return!1};b.prototype.compileNode=function(a){var b,f,d;a.indent+=da;d="";b=this.body;b.isEmpty()?b=this.makeCode(""):(this.returns&&(b.makeReturn(f=a.scope.freeVariable("results")),d=""+this.tab+f+" \x3d [];\n"),this.guard&&(1<b.expressions.length?
b.expressions.unshift(new E((new D(this.guard)).invert(),new ua("continue"))):this.guard&&(b=c.wrap([new E(this.guard,b)]))),b=[].concat(this.makeCode("\n"),b.compileToFragments(a,u),this.makeCode("\n"+this.tab)));a=[].concat(this.makeCode(d+this.tab+"while ("),this.condition.compileToFragments(a,O),this.makeCode(") {"),b,this.makeCode("}"));this.returns&&a.push(this.makeCode("\n"+this.tab+"return "+f+";"));return a};return b}(a);e.Op=A=function(a){function b(a,b,e,n){if("in"===a)return new N(b,e);
if("do"===a)return this.generateDo(b);if("new"===a){if(b instanceof g&&!b["do"]&&!b.isNew)return b.newInstance();if(b instanceof p&&b.bound||b["do"])b=new D(b)}this.operator=c[a]||a;this.first=b;this.second=e;this.flip=!!n;return this}var c,e;na(b,a);c={"\x3d\x3d":"\x3d\x3d\x3d","!\x3d":"!\x3d\x3d",of:"in",yieldfrom:"yield*"};e={"!\x3d\x3d":"\x3d\x3d\x3d","\x3d\x3d\x3d":"!\x3d\x3d"};b.prototype.children=["first","second"];b.prototype.isNumber=function(){var a;return this.isUnary()&&("+"===(a=this.operator)||
"-"===a)&&this.first instanceof L&&this.first.isNumber()};b.prototype.isYield=function(){var a;return"yield"===(a=this.operator)||"yield*"===a};b.prototype.isUnary=function(){return!this.second};b.prototype.isComplex=function(){return!this.isNumber()};b.prototype.isChainable=function(){var a;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,d,c;if(this.isChainable()&&this.first.isChainable()){a=!0;
for(d=this;d&&d.operator;)a&&(a=d.operator in e),d=d.first;if(!a)return(new D(this)).invert();for(d=this;d&&d.operator;)d.invert=!d.invert,d.operator=e[d.operator],d=d.first;return this}return(d=e[this.operator])?(this.operator=d,this.first.unwrap()instanceof b&&this.first.invert(),this):this.second?(new D(this)).invert():"!"===this.operator&&(a=this.first.unwrap())instanceof b&&("!"===(c=a.operator)||"in"===c||"instanceof"===c)?a:new b("!",this)};b.prototype.unfoldSoak=function(a){var b;return("++"===
(b=this.operator)||"--"===b||"delete"===b)&&Ka(a,this,"first")};b.prototype.generateDo=function(a){var b,f,c,e,n;e=[];n=(a instanceof V&&(b=a.value.unwrap())instanceof p?b:a).params||[];b=0;for(f=n.length;b<f;b++)c=n[b],c.value?(e.push(c.value),delete c.value):e.push(c);a=new g(a,e);a["do"]=!0;return a};b.prototype.compileNode=function(a){var b,f;b=this.isChainable()&&this.first.isChainable();b||(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");
("--"===(f=this.operator)||"++"===f)&&(f=Ga(this.first.unwrapAll().value))&&this.first.error(f);if(this.isYield())return this.compileYield(a);if(this.isUnary())return this.compileUnary(a);if(b)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 b=this.first.compileToFragments(a,y),f=this.second.compileToFragments(a,y),b=[].concat(b,
this.makeCode(" "+this.operator+" "),f),a.level<=y?b:this.wrapInBraces(b)}};b.prototype.compileChain=function(a){var b;b=this.first.second.cache(a);this.first.second=b[0];b=b[1];a=this.first.compileToFragments(a,y).concat(this.makeCode(" "+(this.invert?"\x26\x26":"||")+" "),b.compileToFragments(a),this.makeCode(" "+this.operator+" "),this.second.compileToFragments(a,y));return this.wrapInBraces(a)};b.prototype.compileExistence=function(a){var b,f;this.first.isComplex()?(f=new z(a.scope.freeVariable("ref")),
b=new D(new V(f,this.first))):f=b=this.first;return(new E(new F(b),f,{type:"if"})).addElse(this.second).compileToFragments(a)};b.prototype.compileUnary=function(a){var d,f,c;f=[];d=this.operator;f.push([this.makeCode(d)]);if("!"===d&&this.first instanceof F)return this.first.negated=!this.first.negated,this.first.compileToFragments(a);if(a.level>=q)return(new D(this)).compileToFragments(a);c="+"===d||"-"===d;("new"===d||"typeof"===d||"delete"===d||c&&this.first instanceof b&&this.first.operator===
d)&&f.push([this.makeCode(" ")]);if(c&&this.first instanceof b||"new"===d&&this.first.isStatement(a))this.first=new D(this.first);f.push(this.first.compileToFragments(a,y));this.flip&&f.reverse();return this.joinFragmentArrays(f,"")};b.prototype.compileYield=function(a){var b,f,c;f=[];b=this.operator;null==a.scope.parent&&this.error("yield can only occur inside functions");0<=Ha.call(Object.keys(this.first),"expression")&&!(this.first instanceof ia)?null!=this.first.expression&&f.push(this.first.expression.compileToFragments(a,
y)):(a.level>=O&&f.push([this.makeCode("(")]),f.push([this.makeCode(b)]),""!==(null!=(c=this.first.base)?c.value:void 0)&&f.push([this.makeCode(" ")]),f.push(this.first.compileToFragments(a,y)),a.level>=O&&f.push([this.makeCode(")")]));return this.joinFragmentArrays(f,"")};b.prototype.compilePower=function(a){var b;b=new L(new z("Math"),[new va(new P("pow"))]);return(new g(b,[this.first,this.second])).compileToFragments(a)};b.prototype.compileFloorDivision=function(a){var d,f;f=new L(new z("Math"),
[new va(new P("floor"))]);d=this.second.isComplex()?new D(this.second):this.second;d=new b("/",this.first,d);return(new g(f,[d])).compileToFragments(a)};b.prototype.compileModulo=function(a){var b;b=new L(new B(ya("modulo",a)));return(new g(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}(a);e.In=N=function(a){function b(a,b){this.object=a;this.array=b}na(b,a);b.prototype.children=
["object","array"];b.prototype.invert=S;b.prototype.compileNode=function(a){var b,f,d,c,e;if(this.array instanceof L&&this.array.isArray()&&this.array.base.objects.length){e=this.array.base.objects;f=0;for(d=e.length;f<d;f++)if(c=e[f],c instanceof Q){b=!0;break}if(!b)return this.compileOrTest(a)}return this.compileLoopTest(a)};b.prototype.compileOrTest=function(a){var b,f,d,c,e,g,n,h,m,k;b=this.object.cache(a,y);m=b[0];n=b[1];f=this.negated?[" !\x3d\x3d "," \x26\x26 "]:[" \x3d\x3d\x3d "," || "];b=
f[0];f=f[1];k=[];h=this.array.base.objects;d=e=0;for(g=h.length;e<g;d=++e)c=h[d],d&&k.push(this.makeCode(f)),k=k.concat(d?n:m,this.makeCode(b),c.compileToFragments(a,q));return a.level<y?k:this.wrapInBraces(k)};b.prototype.compileLoopTest=function(a){var b,f,d;b=this.object.cache(a,h);d=b[0];f=b[1];b=[].concat(this.makeCode(ya("indexOf",a)+".call("),this.array.compileToFragments(a,h),this.makeCode(", "),f,this.makeCode(") "+(this.negated?"\x3c 0":"\x3e\x3d 0")));if(Ca(d)===Ca(f))return b;b=d.concat(this.makeCode(", "),
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"CALL_END"===a[0]||a.generated&&"}"===a[0]))return 1;b=g[b-1][2];a[2]={first_line:b.last_line,first_column:b.last_column,last_line:b.last_line,last_column:b.last_column};return 1})};l.prototype.normalizeLines=function(){var b,g;var l=b=g=null;var k=function(a,b){var c,g,k,f;return";"!==a[1]&&(c=a[0],0<=y.call(O,c))&&!("TERMINATOR"===a[0]&&(g=this.tag(b+1),0<=y.call(H,g)))&&!("ELSE"===a[0]&&"THEN"!==l)&&!!("CATCH"!==(k=a[0])&&"FINALLY"!==k||"-\x3e"!==l&&"\x3d\x3e"!==l)||(f=a[0],0<=y.call(z,f))&&(this.tokens[b-
1].newLine||"OUTDENT"===this.tokens[b-1][0])};var f=function(a,b){return this.tokens.splice(","===this.tag(b-1)?b-1:b,0,g)};return this.scanTokens(function(c,m,h){var w,n,r;c=c[0];if("TERMINATOR"===c){if("ELSE"===this.tag(m+1)&&"OUTDENT"!==this.tag(m-1))return h.splice.apply(h,[m,1].concat(a.call(this.indentation()))),1;if(w=this.tag(m+1),0<=y.call(H,w))return h.splice(m,1),0}if("CATCH"===c)for(w=n=1;2>=n;w=++n)if("OUTDENT"===(r=this.tag(m+w))||"TERMINATOR"===r||"FINALLY"===r)return h.splice.apply(h,
[m+w,0].concat(a.call(this.indentation()))),2+w;0<=y.call(J,c)&&"INDENT"!==this.tag(m+1)&&("ELSE"!==c||"IF"!==this.tag(m+1))&&(l=c,r=this.indentation(h[m]),b=r[0],g=r[1],"THEN"===l&&(b.fromThen=!0),h.splice(m+1,0,b),this.detectEnd(m+2,k,f),"THEN"===c&&h.splice(m,1));return 1})};l.prototype.tagPostfixConditionals=function(){var a=null;var b=function(a,b){a=a[0];b=this.tokens[b-1][0];return"TERMINATOR"===a||"INDENT"===a&&0>y.call(J,b)};var g=function(b,c){if("INDENT"!==b[0]||b.generated&&!b.fromThen)return a[0]=
"POST_"+a[0]};return this.scanTokens(function(c,l){if("IF"!==c[0])return 1;a=c;this.detectEnd(l+1,b,g);return 1})};l.prototype.indentation=function(a){var b=["INDENT",2];var c=["OUTDENT",2];a?(b.generated=c.generated=!0,b.origin=c.origin=a):b.explicit=c.explicit=!0;return[b,c]};l.prototype.generate=b;l.prototype.tag=function(a){var b;return null!=(b=this.tokens[a])?b[0]:void 0};return l}();var ya=[["(",")"],["[","]"],["{","}"],["INDENT","OUTDENT"],["CALL_START","CALL_END"],["PARAM_START","PARAM_END"],
["INDEX_START","INDEX_END"],["STRING_START","STRING_END"],["REGEX_START","REGEX_END"]];f.INVERSES=u={};var g=[];var h=[];var r=0;for(q=ya.length;r<q;r++){var n=ya[r];var B=n[0];n=n[1];g.push(u[n]=B);h.push(u[B]=n)}var H=["CATCH","THEN","ELSE","FINALLY"].concat(h);var I="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 Q=["+","-"];var x="POST_IF FOR WHILE UNTIL WHEN BY LOOP TERMINATOR".split(" ");var J="ELSE -\x3e \x3d\x3e TRY FINALLY THEN".split(" ");var O="TERMINATOR CATCH FINALLY ELSE OUTDENT LEADING_WHEN".split(" ");var R=["TERMINATOR","INDENT","OUTDENT"];var z=[".","?.","::","?::"]}).call(this);return f}();u["./lexer"]=function(){var f={};(function(){var qa,q=[].indexOf||function(a){for(var N=0,b=this.length;N<b;N++)if(N in this&&this[N]===a)return N;return-1},y=[].slice;var a=u("./rewriter");var b=a.Rewriter;
var ya=a.INVERSES;a=u("./helpers");var g=a.count;var h=a.repeat;var r=a.invertLiterate;var n=a.throwSyntaxError;f.Lexer=function(){function a(){}a.prototype.tokenize=function(a,c){var N,g;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(g=
0;this.chunk=a.slice(g);){var l=this.identifierToken()||this.commentToken()||this.whitespaceToken()||this.lineToken()||this.stringToken()||this.numberToken()||this.regexToken()||this.jsToken()||this.literalToken();var k=this.getLineAndColumnFromChunk(l);this.chunkLine=k[0];this.chunkColumn=k[1];g+=l;if(c.untilBalanced&&0===this.ends.length)return{tokens:this.tokens,index:g}}this.closeIndentation();(N=this.ends.pop())&&this.error("missing "+N.tag,N.origin[2]);return!1===c.rewrite?this.tokens:(new b).rewrite(this.tokens)};
a.prototype.clean=function(a){a.charCodeAt(0)===R&&(a=a.slice(1));a=a.replace(/\r/g,"").replace(Z,"");w.test(a)&&(a="\n"+a,this.chunkLine--);this.literate&&(a=r(a));return a};a.prototype.identifierToken=function(){var a,b,c,g,l,k,m;if(!(a=z.exec(this.chunk)))return 0;var f=a[0];var h=a[1];a=a[2];var y=h.length;var w=void 0;if("own"===h&&"FOR"===this.tag())return this.token("OWN",h),h.length;if("from"===h&&"YIELD"===this.tag())return this.token("FROM",h),h.length;if("as"===h&&this.seenImport){if("*"===
this.value())this.tokens[this.tokens.length-1][0]="IMPORT_ALL";else if(b=this.value(),0<=q.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",h),h.length}if("as"===h&&this.seenExport&&("IDENTIFIER"===(g=this.tag())||"DEFAULT"===g))return this.token("AS",h),h.length;if("default"===h&&this.seenExport&&("EXPORT"===(l=this.tag())||"AS"===l))return this.token("DEFAULT",h),h.length;b=this.tokens;b=b[b.length-
1];var n=a||null!=b&&("."===(k=b[0])||"?."===k||"::"===k||"?::"===k||!b.spaced&&"@"===b[0])?"PROPERTY":"IDENTIFIER";"IDENTIFIER"!==n||!(0<=q.call(I,h)||0<=q.call(F,h))||this.exportSpecifierList&&0<=q.call(F,h)?"IDENTIFIER"===n&&this.seenFor&&"from"===h&&H(b)&&(n="FORFROM",this.seenFor=!1):(n=h.toUpperCase(),"WHEN"===n&&(m=this.tag(),0<=q.call(ra,m))?n="LEADING_WHEN":"FOR"===n?this.seenFor=!0:"UNLESS"===n?n="IF":"IMPORT"===n?this.seenImport=!0:"EXPORT"===n?this.seenExport=!0:0<=q.call(ia,n)?n="UNARY":
0<=q.call(pa,n)&&("INSTANCEOF"!==n&&this.seenFor?(n="FOR"+n,this.seenFor=!1):(n="RELATION","!"===this.value()&&(w=this.tokens.pop(),h="!"+h))));"IDENTIFIER"===n&&0<=q.call(J,h)&&this.error("reserved word '"+h+"'",{length:h.length});if("PROPERTY"!==n){if(0<=q.call(x,h)){var r=h;h=Q[h]}n=function(){switch(h){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 h;
default:return n}}()}k=this.token(n,h,0,y);r&&(k.origin=[n,r,k[2]]);w&&(r=[w[2].first_line,w[2].first_column],k[2].first_line=r[0],k[2].first_column=r[1]);a&&(r=f.lastIndexOf(":"),this.token(":",":",r,a.length));return f.length};a.prototype.numberToken=function(){var a,b;if(!(a=l.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 g=function(){switch(c.charAt(1)){case "b":return 2;case "o":return 8;case "x":return 16;default:return null}}();g=null!=g?parseInt(c.slice(2),g):parseFloat(c);if("b"===(b=c.charAt(1))||"o"===b)c="0x"+g.toString(16);
this.token(Infinity===g?"INFINITY":"NUMBER",c,0,a);return a};a.prototype.stringToken=function(){var a,b,c,g,l;var k=(V.exec(this.chunk)||[])[0];if(!k)return 0;this.tokens.length&&"from"===this.value()&&(this.seenImport||this.seenExport)&&(this.tokens[this.tokens.length-1][0]="FROM");var h=function(){switch(k){case "'":return X;case '"':return G;case "'''":return aa;case '"""':return U}}();var m=3===k.length;h=this.matchWithInterpolations(h,k);var f=h.tokens;var n=h.index;var y=f.length-1;h=k.charAt(0);
if(m){var w=null;for(m=function(){var a,c;var N=[];b=a=0;for(c=f.length;a<c;b=++a)l=f[b],"NEOSTRING"===l[0]&&N.push(l[1]);return N}().join("#{}");a=A.exec(m);)if(a=a[1],null===w||0<(g=a.length)&&g<w.length)w=a;w&&(c=RegExp("\\n"+w,"g"));this.mergeInterpolationTokens(f,{delimiter:h},function(a){return function(b,N){b=a.formatString(b,{delimiter:k});c&&(b=b.replace(c,"\n"));0===N&&(b=b.replace(za,""));N===y&&(b=b.replace(ma,""));return b}}(this))}else this.mergeInterpolationTokens(f,{delimiter:h},function(a){return function(b,
N){b=a.formatString(b,{delimiter:k});return b=b.replace(D,function(a,p){return 0===N&&0===p||N===y&&p+a.length===b.length?"":" "})}}(this));return n};a.prototype.commentToken=function(){var a,b;if(!(b=this.chunk.match(m)))return 0;var c=b[0];if(a=b[1])(b=Y.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"+h(" ",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=T.exec(this.chunk)):this.error("regular expressions cannot begin with "+a[2],{offset:a.index+a[1].length});break;case !(a=this.matchWithInterpolations(ca,"///")):var g=a.tokens;var k=a.index;break;case !(a=
fc.exec(this.chunk)):var l=a[0];var h=a[1];a=a[2];this.validateEscapes(h,{isRegex:!0,offsetInChunk:1});h=this.formatRegex(h,{delimiter:"/"});k=l.length;var m=this.tokens;if(m=m[m.length-1])if(m.spaced&&(b=m[0],0<=q.call(ha,b))){if(!a||v.test(l))return 0}else if(c=m[0],0<=q.call(na,c))return 0;a||this.error("missing / (unclosed regex)");break;default:return 0}c=E.exec(this.chunk.slice(k))[0];b=k+c.length;a=this.makeToken("REGEX",null,0,b);switch(!1){case !!ba.test(c):this.error("invalid regular expression flags "+
c,{offset:k,length:c.length});break;case !(l||1===g.length):null==h&&(h=this.formatHeregex(g[0][1]));this.token("REGEX",""+this.makeDelimitedLiteral(h,{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(g,{delimiter:'"',double:!0},this.formatHeregex),c&&(this.token(",",",",k-1,0),this.token("STRING",'"'+c+'"',k-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.tag())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 g,N,k;for(g=this.indent-a;0<a;)if(N=this.indents[this.indents.length-1])if(N===this.outdebt)a-=this.outdebt,this.outdebt=0;
else if(N<this.outdebt)this.outdebt-=N,a-=N;else{var h=this.indents.pop()+this.outdebt;c&&(k=this.chunk[c],0<=q.call(da,k))&&(g-=h-a,a=h);this.outdebt=0;this.pair("OUTDENT");this.token("OUTDENT",a,0,c);a-=h}else a=0;h&&(this.outdebt-=a);for(;";"===this.value();)this.tokens.pop();"TERMINATOR"===this.tag()||b||this.token("TERMINATOR","\n",c,0);this.indent=g;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,g,h,l;(a=c.exec(this.chunk))?(a=a[0],k.test(a)&&this.tagParameters()):a=this.chunk.charAt(0);var m=a;var f=this.tokens;if((f=f[f.length-1])&&0<=
q.call(["\x3d"].concat(y.call(fa)),a)){var n=!1;"\x3d"!==a||"||"!==(g=f[1])&&"\x26\x26"!==g||f.spaced||(f[0]="COMPOUND_ASSIGN",f[1]+="\x3d",f=this.tokens[this.tokens.length-2],n=!0);f&&"PROPERTY"!==f[0]&&(g=null!=(b=f.origin)?b:f,(b=B(f[1],g[1]))&&this.error(b,g[2]));if(n)return a.length}"{"===a&&this.seenImport?this.importSpecifierList=!0:this.importSpecifierList&&"}"===a?this.importSpecifierList=!1:"{"===a&&"EXPORT"===(null!=f?f[0]:void 0)?this.exportSpecifierList=!0:this.exportSpecifierList&&"}"===
a&&(this.exportSpecifierList=!1);if(";"===a)this.seenFor=this.seenImport=this.seenExport=!1,m="TERMINATOR";else if("*"===a&&"EXPORT"===f[0])m="EXPORT_ALL";else if(0<=q.call(oa,a))m="MATH";else if(0<=q.call(la,a))m="COMPARE";else if(0<=q.call(fa,a))m="COMPOUND_ASSIGN";else if(0<=q.call(ia,a))m="UNARY";else if(0<=q.call(ga,a))m="UNARY_MATH";else if(0<=q.call(ja,a))m="SHIFT";else if("?"===a&&null!=f&&f.spaced)m="BIN?";else if(f&&!f.spaced)if("("===a&&(h=f[0],0<=q.call(ha,h)))"?"===f[0]&&(f[0]="FUNC_EXIST"),
m="CALL_START";else if("["===a&&(l=f[0],0<=q.call(ka,l)))switch(m="INDEX_START",f[0]){case "?":f[0]="INDEX_SOAK"}h=this.makeToken(m,a);switch(a){case "(":case "{":case "[":this.ends.push({tag:ya[a],origin:h});break;case ")":case "}":case "]":this.pair(a)}this.tokens.push(h);return a.length};a.prototype.tagParameters=function(){var a;if(")"!==this.tag())return this;var b=[];var c=this.tokens;var g=c.length;for(c[--g][0]="PARAM_END";a=c[--g];)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 g,h;var k=[];var l=c.length;if(this.chunk.slice(0,l)!==c)return null;for(h=this.chunk.slice(l);;){var f=b.exec(h)[0];this.validateEscapes(f,{isRegex:"/"===c.charAt(0),offsetInChunk:l});k.push(this.makeToken("NEOSTRING",f,l));h=h.slice(f.length);l+=f.length;if("#{"!==h.slice(0,2))break;var m=this.getLineAndColumnFromChunk(l+
1);f=m[0];m=m[1];m=(new a).tokenize(h.slice(1),{line:f,column:m,untilBalanced:!0});f=m.tokens;var N=m.index;N+=1;var n=f[0];m=f[f.length-1];n[0]=n[1]="(";m[0]=m[1]=")";m.origin=["","end of interpolation",m[2]];"TERMINATOR"===(null!=(g=f[1])?g[0]:void 0)&&f.splice(1,1);k.push(["TOKENS",f]);h=h.slice(N);l+=N}h.slice(0,c.length)!==c&&this.error("missing "+c,{length:c.length});b=k[0];g=k[k.length-1];b[2].first_column-=c.length;"\n"===g[1].substr(-1)?(g[2].last_line+=1,g[2].last_column=c.length-1):g[2].last_column+=
c.length;0===g[1].length&&--g[2].last_column;return{tokens:k,index:l+c.length}};a.prototype.mergeInterpolationTokens=function(a,b,c){var g,h,k,f;1<a.length&&(k=this.token("STRING_START","(",0,0));var l=this.tokens.length;var m=g=0;for(h=a.length;g<h;m=++g){var n=a[m];var N=n[0];var y=n[1];switch(N){case "TOKENS":if(2===y.length)continue;var w=y[0];var r=y;break;case "NEOSTRING":N=c.call(this,n[1],m);if(0===N.length)if(0===m)var Ha=this.tokens.length;else continue;2===m&&null!=Ha&&this.tokens.splice(Ha,
2);n[0]="STRING";n[1]=this.makeDelimitedLiteral(N,b);w=n;r=[n]}this.tokens.length>l&&(m=this.token("+","+"),m[2]={first_line:w[2].first_line,first_column:w[2].first_column,last_line:w[2].first_line,last_column:w[2].first_column});(f=this.tokens).push.apply(f,r)}if(k)return a=a[a.length-1],k.origin=["STRING",null,{first_line:k[2].first_line,first_column:k[2].first_column,last_line:a[2].last_line,last_column:a[2].last_column}],k=this.token("STRING_END",")"),k[2]={first_line:a[2].last_line,first_column:a[2].last_column,
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[145,1],[145,1],[143,1],[143,3],[142,2],[142,2],[142,4],[142,4],[142,4],[142,6],[142,6],[142,2],[142,4],[24,5],[24,7],[24,4],[24,6],[150,1],[150,2],[152,3],[152,4],[154,3],[154,5],[20,1],[20,3],[20,3],[20,3],[18,2],[18,2],[18,2],[18,2],[18,2],[18,2],[18,2],[18,2],[18,2],[18,3],[18,3],[18,3],[18,3],[18,3],[18,3],[18,3],[18,3],[18,3],[18,3],[18,3],[18,3],[18,3],[18,3],[18,5],[18,4],[18,3]],performAction:function(a,p,t,d,wa,b,e){a=b.length-1;switch(wa){case 1:return this.$=d.addLocationDataFn(e[a],e[a])(new d.Block);
case 2:return this.$=b[a];case 3:this.$=d.addLocationDataFn(e[a],e[a])(d.Block.wrap([b[a]]));break;case 4:this.$=d.addLocationDataFn(e[a-2],e[a])(b[a-2].push(b[a]));break;case 5:this.$=b[a-1];break;case 6:case 7:case 8:case 9:case 10:case 12:case 13:case 14:case 15:case 16:case 17:case 18:case 19:case 20:case 21:case 22:case 23:case 24:case 25:case 26:case 35:case 40:case 42:case 56:case 57:case 58:case 59:case 60:case 61:case 71:case 72:case 82:case 83:case 84:case 85:case 90:case 91:case 94:case 98:case 104:case 163:case 187:case 188:case 190:case 220:case 221:case 239:case 245:this.$=
b[a];break;case 11:this.$=d.addLocationDataFn(e[a],e[a])(new d.StatementLiteral(b[a]));break;case 27:this.$=d.addLocationDataFn(e[a],e[a])(new d.Op(b[a],new d.Value(new d.Literal(""))));break;case 28:case 249:case 250:this.$=d.addLocationDataFn(e[a-1],e[a])(new d.Op(b[a-1],b[a]));break;case 29:this.$=d.addLocationDataFn(e[a-2],e[a])(new d.Op(b[a-2].concat(b[a-1]),b[a]));break;case 30:this.$=d.addLocationDataFn(e[a-1],e[a])(new d.Block);break;case 31:case 105:this.$=d.addLocationDataFn(e[a-2],e[a])(b[a-
1]);break;case 32:this.$=d.addLocationDataFn(e[a],e[a])(new d.IdentifierLiteral(b[a]));break;case 33:this.$=d.addLocationDataFn(e[a],e[a])(new d.PropertyName(b[a]));break;case 34:this.$=d.addLocationDataFn(e[a],e[a])(new d.NumberLiteral(b[a]));break;case 36:this.$=d.addLocationDataFn(e[a],e[a])(new d.StringLiteral(b[a]));break;case 37:this.$=d.addLocationDataFn(e[a-2],e[a])(new d.StringWithInterpolations(b[a-1]));break;case 38:this.$=d.addLocationDataFn(e[a],e[a])(new d.RegexLiteral(b[a]));break;
case 39:this.$=d.addLocationDataFn(e[a-2],e[a])(new d.RegexWithInterpolations(b[a-1].args));break;case 41:this.$=d.addLocationDataFn(e[a],e[a])(new d.PassthroughLiteral(b[a]));break;case 43:this.$=d.addLocationDataFn(e[a],e[a])(new d.UndefinedLiteral);break;case 44:this.$=d.addLocationDataFn(e[a],e[a])(new d.NullLiteral);break;case 45:this.$=d.addLocationDataFn(e[a],e[a])(new d.BooleanLiteral(b[a]));break;case 46:this.$=d.addLocationDataFn(e[a],e[a])(new d.InfinityLiteral(b[a]));break;case 47:this.$=
d.addLocationDataFn(e[a],e[a])(new d.NaNLiteral);break;case 48:this.$=d.addLocationDataFn(e[a-2],e[a])(new d.Assign(b[a-2],b[a]));break;case 49:this.$=d.addLocationDataFn(e[a-3],e[a])(new d.Assign(b[a-3],b[a]));break;case 50:this.$=d.addLocationDataFn(e[a-4],e[a])(new d.Assign(b[a-4],b[a-1]));break;case 51:case 87:case 92:case 93:case 95:case 96:case 97:case 222:case 223:this.$=d.addLocationDataFn(e[a],e[a])(new d.Value(b[a]));break;case 52:this.$=d.addLocationDataFn(e[a-2],e[a])(new d.Assign(d.addLocationDataFn(e[a-
2])(new d.Value(b[a-2])),b[a],"object",{operatorToken:d.addLocationDataFn(e[a-1])(new d.Literal(b[a-1]))}));break;case 53:this.$=d.addLocationDataFn(e[a-4],e[a])(new d.Assign(d.addLocationDataFn(e[a-4])(new d.Value(b[a-4])),b[a-1],"object",{operatorToken:d.addLocationDataFn(e[a-3])(new d.Literal(b[a-3]))}));break;case 54:this.$=d.addLocationDataFn(e[a-2],e[a])(new d.Assign(d.addLocationDataFn(e[a-2])(new d.Value(b[a-2])),b[a],null,{operatorToken:d.addLocationDataFn(e[a-1])(new d.Literal(b[a-1]))}));
break;case 55:this.$=d.addLocationDataFn(e[a-4],e[a])(new d.Assign(d.addLocationDataFn(e[a-4])(new d.Value(b[a-4])),b[a-1],null,{operatorToken:d.addLocationDataFn(e[a-3])(new d.Literal(b[a-3]))}));break;case 62:this.$=d.addLocationDataFn(e[a-1],e[a])(new d.Return(b[a]));break;case 63:this.$=d.addLocationDataFn(e[a],e[a])(new d.Return);break;case 64:this.$=d.addLocationDataFn(e[a-2],e[a])(new d.YieldReturn(b[a]));break;case 65:this.$=d.addLocationDataFn(e[a-1],e[a])(new d.YieldReturn);break;case 66:this.$=
d.addLocationDataFn(e[a],e[a])(new d.Comment(b[a]));break;case 67:this.$=d.addLocationDataFn(e[a-4],e[a])(new d.Code(b[a-3],b[a],b[a-1]));break;case 68:this.$=d.addLocationDataFn(e[a-1],e[a])(new d.Code([],b[a],b[a-1]));break;case 69:this.$=d.addLocationDataFn(e[a],e[a])("func");break;case 70:this.$=d.addLocationDataFn(e[a],e[a])("boundfunc");break;case 73:case 110:this.$=d.addLocationDataFn(e[a],e[a])([]);break;case 74:case 111:case 130:case 150:case 182:case 224:this.$=d.addLocationDataFn(e[a],
e[a])([b[a]]);break;case 75:case 112:case 131:case 151:case 183:this.$=d.addLocationDataFn(e[a-2],e[a])(b[a-2].concat(b[a]));break;case 76:case 113:case 132:case 152:case 184:this.$=d.addLocationDataFn(e[a-3],e[a])(b[a-3].concat(b[a]));break;case 77:case 114:case 134:case 154:case 186:this.$=d.addLocationDataFn(e[a-5],e[a])(b[a-5].concat(b[a-2]));break;case 78:this.$=d.addLocationDataFn(e[a],e[a])(new d.Param(b[a]));break;case 79:this.$=d.addLocationDataFn(e[a-1],e[a])(new d.Param(b[a-1],null,!0));
break;case 80:this.$=d.addLocationDataFn(e[a-2],e[a])(new d.Param(b[a-2],b[a]));break;case 81:case 189:this.$=d.addLocationDataFn(e[a],e[a])(new d.Expansion);break;case 86:this.$=d.addLocationDataFn(e[a-1],e[a])(new d.Splat(b[a-1]));break;case 88:this.$=d.addLocationDataFn(e[a-1],e[a])(b[a-1].add(b[a]));break;case 89:this.$=d.addLocationDataFn(e[a-1],e[a])(new d.Value(b[a-1],[].concat(b[a])));break;case 99:this.$=d.addLocationDataFn(e[a-1],e[a])(new d.Access(b[a]));break;case 100:this.$=d.addLocationDataFn(e[a-
1],e[a])(new d.Access(b[a],"soak"));break;case 101:this.$=d.addLocationDataFn(e[a-1],e[a])([d.addLocationDataFn(e[a-1])(new d.Access(new d.PropertyName("prototype"))),d.addLocationDataFn(e[a])(new d.Access(b[a]))]);break;case 102:this.$=d.addLocationDataFn(e[a-1],e[a])([d.addLocationDataFn(e[a-1])(new d.Access(new d.PropertyName("prototype"),"soak")),d.addLocationDataFn(e[a])(new d.Access(b[a]))]);break;case 103:this.$=d.addLocationDataFn(e[a],e[a])(new d.Access(new d.PropertyName("prototype")));
break;case 106:this.$=d.addLocationDataFn(e[a-1],e[a])(d.extend(b[a],{soak:!0}));break;case 107:this.$=d.addLocationDataFn(e[a],e[a])(new d.Index(b[a]));break;case 108:this.$=d.addLocationDataFn(e[a],e[a])(new d.Slice(b[a]));break;case 109:this.$=d.addLocationDataFn(e[a-3],e[a])(new d.Obj(b[a-2],b[a-3].generated));break;case 115:this.$=d.addLocationDataFn(e[a],e[a])(new d.Class);break;case 116:this.$=d.addLocationDataFn(e[a-1],e[a])(new d.Class(null,null,b[a]));break;case 117:this.$=d.addLocationDataFn(e[a-
2],e[a])(new d.Class(null,b[a]));break;case 118:this.$=d.addLocationDataFn(e[a-3],e[a])(new d.Class(null,b[a-1],b[a]));break;case 119:this.$=d.addLocationDataFn(e[a-1],e[a])(new d.Class(b[a]));break;case 120:this.$=d.addLocationDataFn(e[a-2],e[a])(new d.Class(b[a-1],null,b[a]));break;case 121:this.$=d.addLocationDataFn(e[a-3],e[a])(new d.Class(b[a-2],b[a]));break;case 122:this.$=d.addLocationDataFn(e[a-4],e[a])(new d.Class(b[a-3],b[a-1],b[a]));break;case 123:this.$=d.addLocationDataFn(e[a-1],e[a])(new d.ImportDeclaration(null,
b[a]));break;case 124:this.$=d.addLocationDataFn(e[a-3],e[a])(new d.ImportDeclaration(new d.ImportClause(b[a-2],null),b[a]));break;case 125:this.$=d.addLocationDataFn(e[a-3],e[a])(new d.ImportDeclaration(new d.ImportClause(null,b[a-2]),b[a]));break;case 126:this.$=d.addLocationDataFn(e[a-4],e[a])(new d.ImportDeclaration(new d.ImportClause(null,new d.ImportSpecifierList([])),b[a]));break;case 127:this.$=d.addLocationDataFn(e[a-6],e[a])(new d.ImportDeclaration(new d.ImportClause(null,new d.ImportSpecifierList(b[a-
4])),b[a]));break;case 128:this.$=d.addLocationDataFn(e[a-5],e[a])(new d.ImportDeclaration(new d.ImportClause(b[a-4],b[a-2]),b[a]));break;case 129:this.$=d.addLocationDataFn(e[a-8],e[a])(new d.ImportDeclaration(new d.ImportClause(b[a-7],new d.ImportSpecifierList(b[a-4])),b[a]));break;case 133:case 153:case 169:case 185:this.$=d.addLocationDataFn(e[a-3],e[a])(b[a-2]);break;case 135:this.$=d.addLocationDataFn(e[a],e[a])(new d.ImportSpecifier(b[a]));break;case 136:this.$=d.addLocationDataFn(e[a-2],e[a])(new d.ImportSpecifier(b[a-
2],b[a]));break;case 137:this.$=d.addLocationDataFn(e[a],e[a])(new d.ImportSpecifier(new d.Literal(b[a])));break;case 138:this.$=d.addLocationDataFn(e[a-2],e[a])(new d.ImportSpecifier(new d.Literal(b[a-2]),b[a]));break;case 139:this.$=d.addLocationDataFn(e[a],e[a])(new d.ImportDefaultSpecifier(b[a]));break;case 140:this.$=d.addLocationDataFn(e[a-2],e[a])(new d.ImportNamespaceSpecifier(new d.Literal(b[a-2]),b[a]));break;case 141:this.$=d.addLocationDataFn(e[a-2],e[a])(new d.ExportNamedDeclaration(new d.ExportSpecifierList([])));
break;case 142:this.$=d.addLocationDataFn(e[a-4],e[a])(new d.ExportNamedDeclaration(new d.ExportSpecifierList(b[a-2])));break;case 143:this.$=d.addLocationDataFn(e[a-1],e[a])(new d.ExportNamedDeclaration(b[a]));break;case 144:this.$=d.addLocationDataFn(e[a-3],e[a])(new d.ExportNamedDeclaration(new d.Assign(b[a-2],b[a],null,{moduleDeclaration:"export"})));break;case 145:this.$=d.addLocationDataFn(e[a-4],e[a])(new d.ExportNamedDeclaration(new d.Assign(b[a-3],b[a],null,{moduleDeclaration:"export"})));
break;case 146:this.$=d.addLocationDataFn(e[a-5],e[a])(new d.ExportNamedDeclaration(new d.Assign(b[a-4],b[a-1],null,{moduleDeclaration:"export"})));break;case 147:this.$=d.addLocationDataFn(e[a-2],e[a])(new d.ExportDefaultDeclaration(b[a]));break;case 148:this.$=d.addLocationDataFn(e[a-3],e[a])(new d.ExportAllDeclaration(new d.Literal(b[a-2]),b[a]));break;case 149:this.$=d.addLocationDataFn(e[a-6],e[a])(new d.ExportNamedDeclaration(new d.ExportSpecifierList(b[a-4]),b[a]));break;case 155:this.$=d.addLocationDataFn(e[a],
e[a])(new d.ExportSpecifier(b[a]));break;case 156:this.$=d.addLocationDataFn(e[a-2],e[a])(new d.ExportSpecifier(b[a-2],b[a]));break;case 157:this.$=d.addLocationDataFn(e[a-2],e[a])(new d.ExportSpecifier(b[a-2],new d.Literal(b[a])));break;case 158:this.$=d.addLocationDataFn(e[a],e[a])(new d.ExportSpecifier(new d.Literal(b[a])));break;case 159:this.$=d.addLocationDataFn(e[a-2],e[a])(new d.ExportSpecifier(new d.Literal(b[a-2]),b[a]));break;case 160:this.$=d.addLocationDataFn(e[a-2],e[a])(new d.TaggedTemplateCall(b[a-
2],b[a],b[a-1]));break;case 161:case 162:this.$=d.addLocationDataFn(e[a-2],e[a])(new d.Call(b[a-2],b[a],b[a-1]));break;case 164:this.$=d.addLocationDataFn(e[a],e[a])(new d.SuperCall);break;case 165:this.$=d.addLocationDataFn(e[a-1],e[a])(new d.SuperCall(b[a]));break;case 166:this.$=d.addLocationDataFn(e[a],e[a])(!1);break;case 167:this.$=d.addLocationDataFn(e[a],e[a])(!0);break;case 168:this.$=d.addLocationDataFn(e[a-1],e[a])([]);break;case 170:case 171:this.$=d.addLocationDataFn(e[a],e[a])(new d.Value(new d.ThisLiteral));
break;case 172:this.$=d.addLocationDataFn(e[a-1],e[a])(new d.Value(d.addLocationDataFn(e[a-1])(new d.ThisLiteral),[d.addLocationDataFn(e[a])(new d.Access(b[a]))],"this"));break;case 173:this.$=d.addLocationDataFn(e[a-1],e[a])(new d.Arr([]));break;case 174:this.$=d.addLocationDataFn(e[a-3],e[a])(new d.Arr(b[a-2]));break;case 175:this.$=d.addLocationDataFn(e[a],e[a])("inclusive");break;case 176:this.$=d.addLocationDataFn(e[a],e[a])("exclusive");break;case 177:this.$=d.addLocationDataFn(e[a-4],e[a])(new d.Range(b[a-
3],b[a-1],b[a-2]));break;case 178:this.$=d.addLocationDataFn(e[a-2],e[a])(new d.Range(b[a-2],b[a],b[a-1]));break;case 179:this.$=d.addLocationDataFn(e[a-1],e[a])(new d.Range(b[a-1],null,b[a]));break;case 180:this.$=d.addLocationDataFn(e[a-1],e[a])(new d.Range(null,b[a],b[a-1]));break;case 181:this.$=d.addLocationDataFn(e[a],e[a])(new d.Range(null,null,b[a]));break;case 191:this.$=d.addLocationDataFn(e[a-2],e[a])([].concat(b[a-2],b[a]));break;case 192:this.$=d.addLocationDataFn(e[a-1],e[a])(new d.Try(b[a]));
break;case 193:this.$=d.addLocationDataFn(e[a-2],e[a])(new d.Try(b[a-1],b[a][0],b[a][1]));break;case 194:this.$=d.addLocationDataFn(e[a-3],e[a])(new d.Try(b[a-2],null,null,b[a]));break;case 195:this.$=d.addLocationDataFn(e[a-4],e[a])(new d.Try(b[a-3],b[a-2][0],b[a-2][1],b[a]));break;case 196:this.$=d.addLocationDataFn(e[a-2],e[a])([b[a-1],b[a]]);break;case 197:this.$=d.addLocationDataFn(e[a-2],e[a])([d.addLocationDataFn(e[a-1])(new d.Value(b[a-1])),b[a]]);break;case 198:this.$=d.addLocationDataFn(e[a-
1],e[a])([null,b[a]]);break;case 199:this.$=d.addLocationDataFn(e[a-1],e[a])(new d.Throw(b[a]));break;case 200:this.$=d.addLocationDataFn(e[a-2],e[a])(new d.Parens(b[a-1]));break;case 201:this.$=d.addLocationDataFn(e[a-4],e[a])(new d.Parens(b[a-2]));break;case 202:this.$=d.addLocationDataFn(e[a-1],e[a])(new d.While(b[a]));break;case 203:this.$=d.addLocationDataFn(e[a-3],e[a])(new d.While(b[a-2],{guard:b[a]}));break;case 204:this.$=d.addLocationDataFn(e[a-1],e[a])(new d.While(b[a],{invert:!0}));break;
case 205:this.$=d.addLocationDataFn(e[a-3],e[a])(new d.While(b[a-2],{invert:!0,guard:b[a]}));break;case 206:this.$=d.addLocationDataFn(e[a-1],e[a])(b[a-1].addBody(b[a]));break;case 207:case 208:this.$=d.addLocationDataFn(e[a-1],e[a])(b[a].addBody(d.addLocationDataFn(e[a-1])(d.Block.wrap([b[a-1]]))));break;case 209:this.$=d.addLocationDataFn(e[a],e[a])(b[a]);break;case 210:this.$=d.addLocationDataFn(e[a-1],e[a])((new d.While(d.addLocationDataFn(e[a-1])(new d.BooleanLiteral("true")))).addBody(b[a]));
break;case 211:this.$=d.addLocationDataFn(e[a-1],e[a])((new d.While(d.addLocationDataFn(e[a-1])(new d.BooleanLiteral("true")))).addBody(d.addLocationDataFn(e[a])(d.Block.wrap([b[a]]))));break;case 212:case 213:this.$=d.addLocationDataFn(e[a-1],e[a])(new d.For(b[a-1],b[a]));break;case 214:this.$=d.addLocationDataFn(e[a-1],e[a])(new d.For(b[a],b[a-1]));break;case 215:this.$=d.addLocationDataFn(e[a-1],e[a])({source:d.addLocationDataFn(e[a])(new d.Value(b[a]))});break;case 216:this.$=d.addLocationDataFn(e[a-
3],e[a])({source:d.addLocationDataFn(e[a-2])(new d.Value(b[a-2])),step:b[a]});break;case 217:d=d.addLocationDataFn(e[a-1],e[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.$=d(b[a]);break;case 218:this.$=d.addLocationDataFn(e[a-1],e[a])(b[a]);break;case 219:wa=d.addLocationDataFn(e[a-2],e[a]);b[a].own=!0;b[a].ownTag=d.addLocationDataFn(e[a-1])(new d.Literal(b[a-1]));this.$=wa(b[a]);break;case 225:this.$=d.addLocationDataFn(e[a-2],e[a])([b[a-2],b[a]]);
break;case 226:this.$=d.addLocationDataFn(e[a-1],e[a])({source:b[a]});break;case 227:this.$=d.addLocationDataFn(e[a-1],e[a])({source:b[a],object:!0});break;case 228:this.$=d.addLocationDataFn(e[a-3],e[a])({source:b[a-2],guard:b[a]});break;case 229:this.$=d.addLocationDataFn(e[a-3],e[a])({source:b[a-2],guard:b[a],object:!0});break;case 230:this.$=d.addLocationDataFn(e[a-3],e[a])({source:b[a-2],step:b[a]});break;case 231:this.$=d.addLocationDataFn(e[a-5],e[a])({source:b[a-4],guard:b[a-2],step:b[a]});
break;case 232:this.$=d.addLocationDataFn(e[a-5],e[a])({source:b[a-4],step:b[a-2],guard:b[a]});break;case 233:this.$=d.addLocationDataFn(e[a-1],e[a])({source:b[a],from:!0});break;case 234:this.$=d.addLocationDataFn(e[a-3],e[a])({source:b[a-2],guard:b[a],from:!0});break;case 235:this.$=d.addLocationDataFn(e[a-4],e[a])(new d.Switch(b[a-3],b[a-1]));break;case 236:this.$=d.addLocationDataFn(e[a-6],e[a])(new d.Switch(b[a-5],b[a-3],b[a-1]));break;case 237:this.$=d.addLocationDataFn(e[a-3],e[a])(new d.Switch(null,
b[a-1]));break;case 238:this.$=d.addLocationDataFn(e[a-5],e[a])(new d.Switch(null,b[a-3],b[a-1]));break;case 240:this.$=d.addLocationDataFn(e[a-1],e[a])(b[a-1].concat(b[a]));break;case 241:this.$=d.addLocationDataFn(e[a-2],e[a])([[b[a-1],b[a]]]);break;case 242:this.$=d.addLocationDataFn(e[a-3],e[a])([[b[a-2],b[a-1]]]);break;case 243:this.$=d.addLocationDataFn(e[a-2],e[a])(new d.If(b[a-1],b[a],{type:b[a-2]}));break;case 244:this.$=d.addLocationDataFn(e[a-4],e[a])(b[a-4].addElse(d.addLocationDataFn(e[a-
2],e[a])(new d.If(b[a-1],b[a],{type:b[a-2]}))));break;case 246:this.$=d.addLocationDataFn(e[a-2],e[a])(b[a-2].addElse(b[a]));break;case 247:case 248:this.$=d.addLocationDataFn(e[a-2],e[a])(new d.If(b[a],d.addLocationDataFn(e[a-2])(d.Block.wrap([b[a-2]])),{type:b[a-1],statement:!0}));break;case 251:this.$=d.addLocationDataFn(e[a-1],e[a])(new d.Op("-",b[a]));break;case 252:this.$=d.addLocationDataFn(e[a-1],e[a])(new d.Op("+",b[a]));break;case 253:this.$=d.addLocationDataFn(e[a-1],e[a])(new d.Op("--",
b[a]));break;case 254:this.$=d.addLocationDataFn(e[a-1],e[a])(new d.Op("++",b[a]));break;case 255:this.$=d.addLocationDataFn(e[a-1],e[a])(new d.Op("--",b[a-1],null,!0));break;case 256:this.$=d.addLocationDataFn(e[a-1],e[a])(new d.Op("++",b[a-1],null,!0));break;case 257:this.$=d.addLocationDataFn(e[a-1],e[a])(new d.Existence(b[a-1]));break;case 258:this.$=d.addLocationDataFn(e[a-2],e[a])(new d.Op("+",b[a-2],b[a]));break;case 259:this.$=d.addLocationDataFn(e[a-2],e[a])(new d.Op("-",b[a-2],b[a]));break;
case 260:case 261:case 262:case 263:case 264:case 265:case 266:case 267:case 268:case 269:this.$=d.addLocationDataFn(e[a-2],e[a])(new d.Op(b[a-1],b[a-2],b[a]));break;case 270:e=d.addLocationDataFn(e[a-2],e[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.$=e(b);break;case 271:this.$=d.addLocationDataFn(e[a-2],e[a])(new d.Assign(b[a-2],b[a],b[a-1]));break;case 272:this.$=d.addLocationDataFn(e[a-4],e[a])(new d.Assign(b[a-4],b[a-1],b[a-3]));
break;case 273:this.$=d.addLocationDataFn(e[a-3],e[a])(new d.Assign(b[a-3],b[a],b[a-2]));break;case 274:this.$=d.addLocationDataFn(e[a-2],e[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:g,37:55,38:h,39:80,40:r,41:n,43:57,44:B,45:H,47:27,48:I,49:F,50:Q,51:x,52:J,53:O,54:26,60:71,61:R,62:z,63:l,66:33,67:c,68:w,74:53,75:54,77:40,79:28,80:29,81:30,92:m,95:k,
97:K,105:P,111:31,112:L,117:V,118:X,119:G,125:aa,129:U,130:W,132:43,133:D,135:A,136:44,137:q,138:45,139:E,141:77,149:ba,154:41,155:ca,157:C,158:T,159:v,160:Y,161:S,162:M},{1:[3]},{1:[2,2],6:qa},a(sa,[2,3]),a(sa,[2,6],{141:77,132:102,138:103,133:D,135:A,139:E,156:za,159:ma,160:Z,163:fa,164:ia,165:ga,166:ja,167:la,168:oa,169:pa,170:ha,171:ka,172:na,173:ra,174:da}),a(sa,[2,7],{141:77,132:105,138:106,133:D,135:A,139:E,156:va}),a(sa,[2,8]),a(N,[2,14],{109:107,78:108,86:114,40:xa,41:xa,114:xa,82:ta,83:Na,
84:Fa,85:Ga,87:Ca,90:Pa,113:Ia}),a(N,[2,15],{86:114,109:117,78:118,82:ta,83:Na,84:Fa,85:Ga,87:Ca,90:Pa,113:Ia,114:xa}),a(N,[2,16]),a(N,[2,17]),a(N,[2,18]),a(N,[2,19]),a(N,[2,20]),a(N,[2,21]),a(N,[2,22]),a(N,[2,23]),a(N,[2,24]),a(N,[2,25]),a(N,[2,26]),a(Ea,[2,9]),a(Ea,[2,10]),a(Ea,[2,11]),a(Ea,[2,12]),a(Ea,[2,13]),a([1,6,32,42,131,133,135,139,156,163,164,165,166,167,168,169,170,171,172,173,174],Va,{15:7,16:8,17:9,18:10,19:11,20:12,21:13,22:14,23:15,24:16,25:17,26:18,27:19,10:20,11:21,13:23,14:24,54:26,
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158:T,159:v,160:Y,161:S,162:M},{7:138,8:122,10:20,11:21,12: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:ea,33:70,34:g,37:55,38:h,39:80,40:r,41:n,43:57,44:B,45:H,47:27,48:I,49:F,50:Q,51:x,52:J,53:O,54:26,60:71,61:R,62:z,63:l,66:33,67:c,68:w,74:53,75:54,77:40,79:28,80:29,81:30,92:m,95:k,97:K,105:P,111:31,112:L,117:V,118:X,119:G,125:aa,129:U,130:W,132:43,133:D,135:A,136:44,137:q,138:45,139:E,141:77,149:ba,154:41,155:ca,157:C,158:T,159:v,160:Y,161:S,162:M},
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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:ea,31:[1,155],33:70,34:g,37:55,38:h,39:80,40:r,41:n,43:57,44:B,45:H,47:27,48:I,49:F,50:Q,51:x,52:J,53:O,54:26,60:71,61:R,62:z,63:l,66:33,67:c,68:w,74:53,75:54,77:40,79:28,80:29,81:30,92:m,95:k,97:K,105:P,111:31,112:L,117:V,118:X,119:G,125:aa,129:U,130:W,132:43,133:D,135:A,136:44,137:q,138:45,139:E,141:77,149:ba,154:41,155:ca,157:C,158:T,159:v,160:Y,161:S,162:M},a(Eb,[2,115],{47:27,79:28,80:29,81:30,111:31,
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function(b){var d;b.indent+=Ca;var c="";var e=this.body;e.isEmpty()?e=this.makeCode(""):(this.returns&&(e.makeReturn(d=b.scope.freeVariable("results")),c=""+this.tab+d+" \x3d [];\n"),this.guard&&(1<e.expressions.length?e.expressions.unshift(new J((new P(this.guard)).invert(),new W("continue"))):this.guard&&(e=a.wrap([new J(this.guard,e)]))),e=[].concat(this.makeCode("\n"),e.compileToFragments(b,N),this.makeCode("\n"+this.tab)));b=[].concat(this.makeCode(c+this.tab+"while ("),this.condition.compileToFragments(b,
Ka),this.makeCode(") {"),e,this.makeCode("}"));this.returns&&b.push(this.makeCode("\n"+this.tab+"return "+d+";"));return b};return c}(sa);f.Op=k=function(a){function b(a,b,d,f){if("in"===a)return new O(b,d);if("do"===a)return this.generateDo(b);if("new"===a){if(b instanceof ya&&!b["do"]&&!b.isNew)return b.newInstance();if(b instanceof h&&b.bound||b["do"])b=new P(b)}this.operator=c[a]||a;this.first=b;this.second=d;this.flip=!!f;return this}v(b,a);var c={"\x3d\x3d":"\x3d\x3d\x3d","!\x3d":"!\x3d\x3d",
of:"in",yieldfrom:"yield*"};var d={"!\x3d\x3d":"\x3d\x3d\x3d","\x3d\x3d\x3d":"!\x3d\x3d"};b.prototype.children=["first","second"];b.prototype.isNumber=function(){var a;return this.isUnary()&&("+"===(a=this.operator)||"-"===a)&&this.first instanceof C&&this.first.isNumber()};b.prototype.isYield=function(){var a;return"yield"===(a=this.operator)||"yield*"===a};b.prototype.isUnary=function(){return!this.second};b.prototype.isComplex=function(){return!this.isNumber()};b.prototype.isChainable=function(){var a;
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,e;if(this.isChainable()&&this.first.isChainable()){var c=!0;for(a=this;a&&a.operator;)c&&(c=a.operator in d),a=a.first;if(!c)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&&(c=this.first.unwrap())instanceof b&&("!"===(e=c.operator)||"in"===e||"instanceof"===e)?c:new b("!",this)};b.prototype.unfoldSoak=function(a){var b;return("++"===(b=this.operator)||"--"===b||"delete"===b)&&Ba(a,this,"first")};b.prototype.generateDo=function(a){var b,d;var c=[];var f=(a instanceof y&&(b=a.value.unwrap())instanceof h?b:a).params||[];b=0;for(d=f.length;b<d;b++){var g=f[b];g.value?(c.push(g.value),delete g.value):c.push(g)}a=new ya(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=za(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,Fa),b=this.second.compileToFragments(a,Fa),d=[].concat(d,this.makeCode(" "+this.operator+" "),b),a.level<=Fa?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,Fa).concat(this.makeCode(" "+(this.invert?"\x26\x26":"||")+" "),
b.compileToFragments(a),this.makeCode(" "+this.operator+" "),this.second.compileToFragments(a,Fa));return this.wrapInBraces(a)};b.prototype.compileExistence=function(a){if(this.first.isComplex()){var b=new x(a.scope.freeVariable("ref"));var d=new P(new y(b,this.first))}else b=d=this.first;return(new J(new B(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 B)return this.first.negated=
!this.first.negated,this.first.compileToFragments(a);if(a.level>=Ga)return(new P(this)).compileToFragments(a);var f="+"===c||"-"===c;("new"===c||"typeof"===c||"delete"===c||f&&this.first instanceof b&&this.first.operator===c)&&d.push([this.makeCode(" ")]);if(f&&this.first instanceof b||"new"===c&&this.first.isStatement(a))this.first=new P(this.first);d.push(this.first.compileToFragments(a,Fa));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<=S.call(Object.keys(this.first),"expression")&&!(this.first instanceof ba)?null!=this.first.expression&&d.push(this.first.expression.compileToFragments(a,Fa)):(a.level>=Ka&&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,Fa)),a.level>=Ka&&d.push([this.makeCode(")")]));return this.joinFragmentArrays(d,
"")};b.prototype.compilePower=function(a){var b=new C(new x("Math"),[new qa(new L("pow"))]);return(new ya(b,[this.first,this.second])).compileToFragments(a)};b.prototype.compileFloorDivision=function(a){var d=new C(new x("Math"),[new qa(new L("floor"))]);var c=this.second.isComplex()?new P(this.second):this.second;c=new b("/",this.first,c);return(new ya(d,[c])).compileToFragments(a)};b.prototype.compileModulo=function(a){var b=new C(new z(Ia("modulo",a)));return(new ya(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}(sa);f.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=ra;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 f=c[e];if(f instanceof U){var g=!0;break}}if(!g)return this.compileOrTest(a)}return this.compileLoopTest(a)};
b.prototype.compileOrTest=function(a){var b,c;var e=this.object.cache(a,Fa);var f=e[0];var g=e[1];var h=this.negated?[" !\x3d\x3d "," \x26\x26 "]:[" \x3d\x3d\x3d "," || "];e=h[0];h=h[1];var p=[];var k=this.array.base.objects;var l=b=0;for(c=k.length;b<c;l=++b){var m=k[l];l&&p.push(this.makeCode(h));p=p.concat(l?g:f,this.makeCode(e),m.compileToFragments(a,Ga))}return a.level<Fa?p:this.wrapInBraces(p)};b.prototype.compileLoopTest=function(a){var b=this.object.cache(a,ta);var c=b[0];var e=b[1];b=[].concat(this.makeCode(Ia("indexOf",
a)+".call("),this.array.compileToFragments(a,ta),this.makeCode(", "),e,this.makeCode(") "+(this.negated?"\x3c 0":"\x3e\x3d 0")));if(da(c)===da(e))return b;b=c.concat(this.makeCode(", "),b);return a.level<ta?b:this.wrapInBraces(b)};b.prototype.toString=function(a){return b.__super__.toString.call(this,a,this.constructor.name+(this.negated?"!":""))};return b}(sa);f.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+=Ca;var f=this.attempt.compileToFragments(a,N);var g=this.recovery?(b=a.scope.freeVariable("error",{reserve:!1}),e=new x(b),
this.errorVariable?(c=za(this.errorVariable.unwrapAll().value),c?this.errorVariable.error(c):void 0,this.recovery.unshift(new y(this.errorVariable,e))):void 0,[].concat(this.makeCode(" catch ("),e.compileToFragments(a),this.makeCode(") {\n"),this.recovery.compileToFragments(a,N),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,
N),this.makeCode("\n"+this.tab+"}")):[];return[].concat(this.makeCode(this.tab+"try {\n"),f,this.makeCode("\n"+this.tab+"}"),g,a)};return b}(sa);f.Throw=ba=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=na;b.prototype.compileNode=function(a){return[].concat(this.makeCode(this.tab+"throw "),this.expression.compileToFragments(a),this.makeCode(";"))};return b}(sa);f.Existence=B=function(a){function b(a){this.expression=
a}v(b,a);b.prototype.children=["expression"];b.prototype.invert=ra;b.prototype.compileNode=function(a){this.expression.front=this.front;var b=this.expression.compile(a,Fa);if(this.expression.unwrap()instanceof x&&!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<=Na?b:"("+b+")")]};return b}(sa);f.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,Ka);return a.level<Fa&&(b instanceof k||b instanceof ya||b instanceof Q&&b.returns)&&(a.level<Na||3>=c.length)?c:this.wrapInBraces(c)};return b}(sa);
f.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 g=e[f];g instanceof D?(g=g.value.slice(1,-1),g=
g.replace(/(\\*)(`|\$\{)/g,function(a,b,d){return 0===b.length%2?b+"\\"+d:a}),c.push(this.makeCode(g))):(c.push(this.makeCode("${")),c.push.apply(c,g.compileToFragments(a,Ka)),c.push(this.makeCode("}")))}c.push(this.makeCode("`"));return c};return b}(P);f.For=Q=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 V&&!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,g,h,k;var l=a.wrap([this.body]);var p=l.expressions;p=p[p.length-1];(null!=p?p.jumps():void 0)instanceof G&&(this.returns=!1);var m=this.range?this.source.base:this.source;var n=b.scope;this.pattern||(e=this.name&&this.name.compile(b,ta));p=this.index&&this.index.compile(b,ta);e&&!this.pattern&&
n.find(e);!p||this.index instanceof C||n.find(p);this.returns&&(c=n.freeVariable("results"));this.from?this.pattern&&(f=n.freeVariable("x",{single:!0})):f=this.object&&p||n.freeVariable("i",{single:!0});var q=(this.range||this.from)&&e||p||f;var t=q!==f?q+" \x3d ":"";if(this.step&&!this.range){p=this.cacheToCodeFragments(this.step.cache(b,ta,Ya));var w=p[0];var r=p[1];this.step.isNumber()&&(h=Number(r))}this.pattern&&(e=f);var v=p=k="";var u=this.tab+Ca;if(this.range)var K=m.compileToFragments(ja(b,
{index:f,name:e,step:this.step,isComplex:Ya}));else{var A=this.source.compile(b,ta);!e&&!this.own||this.source.unwrap()instanceof x||(v+=""+this.tab+(m=n.freeVariable("ref"))+" \x3d "+A+";\n",A=m);!e||this.pattern||this.from||(g=e+" \x3d "+A+"["+q+"]");this.object||this.from||(w!==r&&(v+=""+this.tab+w+";\n"),e=0>h,this.step&&null!=h&&e||(d=n.freeVariable("len")),K=""+t+f+" \x3d 0, "+d+" \x3d "+A+".length",w=""+t+f+" \x3d "+A+".length - 1",d=f+" \x3c "+d,n=f+" \x3e\x3d 0",this.step?(null!=h?e&&(d=
n,K=w):(d=r+" \x3e 0 ? "+d+" : "+n,K="("+r+" \x3e 0 ? ("+K+") : "+w+")"),f=f+" +\x3d "+r):f=""+(q!==f?"++"+f:f+"++"),K=[this.makeCode(K+"; "+d+"; "+t+f)])}if(this.returns){var B=""+this.tab+c+" \x3d [];\n";var V="\n"+this.tab+"return "+c+";";l.makeReturn(c)}this.guard&&(1<l.expressions.length?l.expressions.unshift(new J((new P(this.guard)).invert(),new W("continue"))):this.guard&&(l=a.wrap([new J(this.guard,l)])));this.pattern&&l.expressions.unshift(new y(this.name,this.from?new x(q):new z(A+"["+
q+"]")));c=[].concat(this.makeCode(v),this.pluckDirectCall(b,l));g&&(k="\n"+u+g+";");this.object?(K=[this.makeCode(q+" in "+A)],this.own&&(p="\n"+u+"if (!"+Ia("hasProp",b)+".call("+A+", "+q+")) continue;")):this.from&&(K=[this.makeCode(q+" of "+A)]);(b=l.compileToFragments(ja(b,{indent:u}),N))&&0<b.length&&(b=[].concat(this.makeCode("\n"),b,this.makeCode("\n")));return[].concat(c,this.makeCode(""+(B||"")+this.tab+"for ("),K,this.makeCode(") {"+p+k),b,this.makeCode(this.tab+"}"+(V||"")))};c.prototype.pluckDirectCall=
function(a,b){var d,c,f,g,k,l,p;var m=[];var n=b.expressions;var q=d=0;for(c=n.length;d<c;q=++d){var w=n[q];w=w.unwrapAll();if(w instanceof ya){var t=null!=(f=w.variable)?f.unwrapAll():void 0;if(t instanceof h||t instanceof C&&(null!=(g=t.base)?g.unwrapAll():void 0)instanceof h&&1===t.properties.length&&("call"===(k=null!=(l=t.properties[0].name)?l.value:void 0)||"apply"===k)){var r=(null!=(p=t.base)?p.unwrapAll():void 0)||t;var v=new x(a.scope.freeVariable("fn"));var u=new C(v);t.base&&(u=[u,t],
t.base=u[0],u=u[1]);b.expressions[q]=new ya(u,w.args);m=m.concat(this.makeCode(this.tab),(new y(v,r)).compileToFragments(a,N),this.makeCode(";\n"))}}}return m};return c}(Z);f.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 g=e[f];g=g[1];if(g=g.jumps(a))return g}return null!=
(c=this.otherwise)?c.jumps(a):void 0};c.prototype.makeReturn=function(b){var c,f;var e=this.cases;var g=0;for(c=e.length;g<c;g++){var h=e[g];h[1].makeReturn(b)}b&&(this.otherwise||(this.otherwise=new a([new z("void 0")])));null!=(f=this.otherwise)&&f.makeReturn(b);return this};c.prototype.compileNode=function(a){var b,c,e,f;var g=a.indent+Ca;var h=a.indent=g+Ca;var k=[].concat(this.makeCode(this.tab+"switch ("),this.subject?this.subject.compileToFragments(a,Ka):this.makeCode("false"),this.makeCode(") {\n"));
var l=this.cases;var m=c=0;for(e=l.length;c<e;m=++c){var p=l[m];var n=p[0];p=p[1];var q=ia([n]);n=0;for(f=q.length;n<f;n++){var w=q[n];this.subject||(w=w.invert());k=k.concat(this.makeCode(g+"case "),w.compileToFragments(a,Ka),this.makeCode(":\n"))}0<(b=p.compileToFragments(a,N)).length&&(k=k.concat(b,this.makeCode("\n")));if(m===this.cases.length-1&&!this.otherwise)break;m=this.lastNonComment(p.expressions);m instanceof G||m instanceof z&&m.jumps()&&"debugger"!==m.value||k.push(w.makeCode(h+"break;\n"))}this.otherwise&&
this.otherwise.expressions.length&&k.push.apply(k,[this.makeCode(g+"default:\n")].concat(M.call(this.otherwise.compileToFragments(a,N)),[this.makeCode("\n")]));k.push(this.makeCode(this.tab+"}"));return k};return c}(sa);f.If=J=function(b){function c(a,b,c){this.body=b;null==c&&(c={});this.condition="unless"===c.type?a.invert():a;this.elseBody=null;this.isChain=!1;this.soak=c.soak}v(c,b);c.prototype.children=["condition","body","elseBody"];c.prototype.bodyNode=function(){var a;return null!=(a=this.body)?
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)===N||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 z("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 f=a.indent+Ca;var e=this.condition.compileToFragments(a,Ka);var g=this.ensureBlock(this.body).compileToFragments(ja(a,{indent:f}));g=[].concat(this.makeCode("if ("),e,this.makeCode(") {\n"),g,this.makeCode("\n"+this.tab+"}"));b||g.unshift(this.makeCode(this.tab));if(!this.elseBody)return g;b=g.concat(this.makeCode(" else "));
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View File

@@ -591,18 +591,18 @@ pre .xml .cdata {
Annotated Source
</div>
<div class="contents menu">
<a href="v1/annotated-source/grammar.html">Grammar Rules — src/grammar</a>
<a href="v1/annotated-source/lexer.html">Lexing Tokens — src/lexer</a>
<a href="v1/annotated-source/rewriter.html">The Rewriter — src/rewriter</a>
<a href="v1/annotated-source/nodes.html">The Syntax Tree — src/nodes</a>
<a href="v1/annotated-source/scope.html">Lexical Scope — src/scope</a>
<a href="v1/annotated-source/helpers.html">Helpers &amp; Utility Functions — src/helpers</a>
<a href="v1/annotated-source/coffee-script.html">The CoffeeScript Module — src/coffee-script</a>
<a href="v1/annotated-source/cake.html">Cake &amp; Cakefiles — src/cake</a>
<a href="v1/annotated-source/command.html">“coffee” Command-Line Utility — src/command</a>
<a href="v1/annotated-source/optparse.html">Option Parsing — src/optparse</a>
<a href="v1/annotated-source/repl.html">Interactive REPL — src/repl</a>
<a href="v1/annotated-source/sourcemap.html">Source Maps — src/sourcemap</a>
<a href="/v1/annotated-source/grammar.html">Grammar Rules — src/grammar</a>
<a href="/v1/annotated-source/lexer.html">Lexing Tokens — src/lexer</a>
<a href="/v1/annotated-source/rewriter.html">The Rewriter — src/rewriter</a>
<a href="/v1/annotated-source/nodes.html">The Syntax Tree — src/nodes</a>
<a href="/v1/annotated-source/scope.html">Lexical Scope — src/scope</a>
<a href="/v1/annotated-source/helpers.html">Helpers &amp; Utility Functions — src/helpers</a>
<a href="/v1/annotated-source/coffee-script.html">The CoffeeScript Module — src/coffee-script</a>
<a href="/v1/annotated-source/cake.html">Cake &amp; Cakefiles — src/cake</a>
<a href="/v1/annotated-source/command.html">“coffee” Command-Line Utility — src/command</a>
<a href="/v1/annotated-source/optparse.html">Option Parsing — src/optparse</a>
<a href="/v1/annotated-source/repl.html">Interactive REPL — src/repl</a>
<a href="/v1/annotated-source/sourcemap.html">Source Maps — src/sourcemap</a>
</div>
</div>
</div>
@@ -612,8 +612,8 @@ pre .xml .cdata {
<p><strong>CoffeeScript is a little language that compiles into JavaScript.</strong> Underneath that awkward Java-esque patina, JavaScript has always had a gorgeous heart. CoffeeScript is an attempt to expose the good parts of JavaScript in a simple way.</p>
<p>The golden rule of CoffeeScript is: <em>“Its just JavaScript”</em>. 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.</p>
<p>The CoffeeScript compiler goes to great lengths to generate output JavaScript that runs in every JavaScript runtime, but there are exceptions. Use <a href="#generator-functions">generator functions</a>, <a href="#generator-iteration"><code>for…from</code></a>, or <a href="#tagged-template-literals">tagged template literals</a> only if you know that your <a href="http://kangax.github.io/compat-table/es6/">target runtimes can support them</a>. If you use <a href="#modules">modules</a>, you will need to <a href="#modules-note">use an additional tool to resolve them</a>.</p>
<p><strong>Latest Version:</strong> <a href="http://github.com/jashkenas/coffeescript/tarball/1.12.5">1.12.5</a></p>
<blockquote class="uneditable-code-block"><pre><code class="language-bash">npm install -g coffee-script
<p><strong>Latest Version:</strong> <a href="https://github.com/jashkenas/coffeescript/tarball/1.12.6">1.12.6</a></p>
<blockquote class="uneditable-code-block"><pre><code class="language-bash">npm install -g coffeescript
</code></pre>
</blockquote><p><strong>CoffeeScript 2 is coming!</strong> It adds support for <a href="/v2/#classes">ES2015 classes</a>, <a href="/v2/#fat-arrow"><code>async</code>/<code>await</code></a>, and generates JavaScript using ES2015+ syntax. <a href="/v2/">Learn more</a>.</p></p>
@@ -738,14 +738,16 @@ cubes = (function() {
;alert(cubes);">run: cubes</div><br class='clear' /></div>
<span class="bookmark" id="installation"></span>
<h2>Installation</h2>
<p>The command-line version of <code>coffee</code> is available as a <a href="http://nodejs.org/">Node.js</a> utility. The <a href="v1/browser-compiler/coffee-script.js">core compiler</a> however, does not depend on Node, and can be run in any JavaScript environment, or in the browser (see <a href="#try">Try CoffeeScript</a>).</p>
<p>To install, first make sure you have a working copy of the latest stable version of <a href="http://nodejs.org/">Node.js</a>. You can then install CoffeeScript globally with <a href="http://npmjs.org">npm</a>:</p>
<blockquote class="uneditable-code-block"><pre><code class="language-bash">npm install --global coffee-script
<p>The command-line version of <code>coffee</code> is available as a <a href="https://nodejs.org/">Node.js</a> utility. The <a href="/v1/browser-compiler/coffee-script.js">core compiler</a> however, does not depend on Node, and can be run in any JavaScript environment, or in the browser (see <a href="#try">Try CoffeeScript</a>).</p>
<p>To install, first make sure you have a working copy of the latest stable version of <a href="https://nodejs.org/">Node.js</a>. You can then install CoffeeScript globally with <a href="https://www.npmjs.com/">npm</a>:</p>
<blockquote class="uneditable-code-block"><pre><code class="language-bash">npm install --global coffeescript
</code></pre>
</blockquote><p>When you need CoffeeScript as a dependency of a project, within that projects folder you can install it locally:</p>
<blockquote class="uneditable-code-block"><pre><code class="language-bash">npm install --save coffee-script
</blockquote><p>This will make the <code>coffee</code> and <code>cake</code> commands available globally.</p>
<p>When you need CoffeeScript as a dependency of a project, within that projects folder you can install it locally:</p>
<blockquote class="uneditable-code-block"><pre><code class="language-bash">npm install --save coffeescript
</code></pre>
</blockquote>
</blockquote><p>The <code>coffee</code> and <code>cake</code> 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.</p>
<span class="bookmark" id="usage"></span>
<h2>Usage</h2>
<p>Once installed, you should have access to the <code>coffee</code> command, which can execute scripts, compile <code>.coffee</code> files into <code>.js</code>, and provide an interactive REPL. The <code>coffee</code> command takes the following options:</p>
@@ -842,8 +844,7 @@ cubes = (function() {
<span class="bookmark" id="literate"></span>
<h2>Literate CoffeeScript</h2>
<p>Besides being used as an ordinary programming language, CoffeeScript may also be written in “literate” mode. If you name your file with a <code>.litcoffee</code> 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 (Markdowns way of indicating source code) as code, and ignore the rest as comments.</p>
<p>Just for kicks, a little bit of the compiler is currently implemented in this fashion: See it <a href="https://gist.github.com/jashkenas/3fc3c1a8b1009c00d9df">as a document</a>, <a href="https://raw.github.com/jashkenas/coffeescript/master/src/scope.litcoffee">raw</a>, and <a href="http://cl.ly/LxEu">properly highlighted in a text editor</a>.</p>
<p>Im fairly excited about this direction for the language, and am looking forward to writing (and more importantly, reading) more programs in this style. More information about Literate CoffeeScript, including an <a href="https://github.com/jashkenas/journo">example program</a>, are <a href="http://ashkenas.com/literate-coffeescript">available in this blog post</a>.</p>
<p>Just for kicks, a little bit of the compiler is currently implemented in this fashion: See it <a href="https://gist.github.com/jashkenas/3fc3c1a8b1009c00d9df">as a document</a>, <a href="https://raw.githubusercontent.com/jashkenas/coffeescript/master/src/scope.litcoffee">raw</a>, and <a href="http://cl.ly/LxEu">properly highlighted in a text editor</a>.</p>
<span class="bookmark" id="language"></span>
<h2>Language Reference</h2>
@@ -1470,7 +1471,7 @@ alert((function() {
<p><code>unless</code> can be used as the inverse of <code>if</code>.</p>
<p>As a shortcut for <code>this.property</code>, you can use <code>@property</code>.</p>
<p>You can use <code>in</code> to test for array presence, and <code>of</code> to test for JavaScript object-key presence.</p>
<p>To simplify math expressions, <code>**</code> can be used for exponentiation and <code>//</code> performs integer division. <code>%</code> works just like in JavaScript, while <code>%%</code> provides <a href="http://en.wikipedia.org/wiki/Modulo_operation">“dividend dependent modulo”</a>:</p>
<p>To simplify math expressions, <code>**</code> can be used for exponentiation and <code>//</code> performs integer division. <code>%</code> works just like in JavaScript, while <code>%%</code> provides <a href="https://en.wikipedia.org/wiki/Modulo_operation">“dividend dependent modulo”</a>:</p>
<div class='code'><pre><code><span class="number">-7</span> % <span class="number">5</span> == <span class="number">-2</span> <span class="comment"># The remainder of 7 / 5</span>
<span class="number">-7</span> %% <span class="number">5</span> == <span class="number">3</span> <span class="comment"># n %% 5 is always between 0 and 4</span>
@@ -1625,7 +1626,7 @@ zip = <span class="keyword">typeof</span> lottery.drawWinner === <span class="st
<span class="bookmark" id="classes"></span>
<h2>Classes, Inheritance, and Super</h2>
<p>JavaScripts prototypal inheritance has always been a bit of a brain-bender, with a whole family tree of libraries that provide a cleaner syntax for classical inheritance on top of JavaScripts prototypes: <a href="http://code.google.com/p/base2/">Base2</a>, <a href="http://prototypejs.org/">Prototype.js</a>, <a href="http://jsclass.jcoglan.com/">JS.Class</a>, etc. The libraries provide syntactic sugar, but the built-in inheritance would be completely usable if it werent for a couple of small exceptions: its awkward to call <strong>super</strong> (the prototype objects implementation of the current function), and its awkward to correctly set the prototype chain.</p>
<p>JavaScripts prototypal inheritance has always been a bit of a brain-bender, with a whole family tree of libraries that provide a cleaner syntax for classical inheritance on top of JavaScripts prototypes: <a href="https://code.google.com/p/base2/">Base2</a>, <a href="http://prototypejs.org/">Prototype.js</a>, <a href="http://jsclass.jcoglan.com/">JS.Class</a>, etc. The libraries provide syntactic sugar, but the built-in inheritance would be completely usable if it werent for a couple of small exceptions: its awkward to call <strong>super</strong> (the prototype objects implementation of the current function), and its awkward to correctly set the prototype chain.</p>
<p>Instead of repetitively attaching functions to a prototype, CoffeeScript provides a basic <code>class</code> structure that allows you to name your class, set the superclass, assign prototypal properties, and define the constructor, in a single assignable expression.</p>
<p>Constructor functions are named, to better support helpful stack traces. In the first class in the example below, <code>this.constructor.name is &quot;Animal&quot;</code>.</p>
<div class='code'><pre><code><span class="class"><span class="keyword">class</span> <span class="title">Animal</span></span>
@@ -1950,6 +1951,7 @@ Account = <span class="function"><span class="keyword">function</span>(<span cla
};
</code></pre><script>window.example1 = "Account = (customer, cart) ->\n @customer = customer\n @cart = cart\n\n $('.shopping_cart').on 'click', (event) =>\n @customer.purchase @cart\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example1);'>load</div><br class='clear' /></div><p>If we had used <code>-&gt;</code> in the callback above, <code>@customer</code> would have referred to the undefined “customer” property of the DOM element, and trying to call <code>purchase()</code> on it would have raised an exception.</p>
<p>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.</p>
<div id="generator-functions" class="bookmark"></div>
<p>CoffeeScript functions also support <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/function*">ES2015 generator functions</a> through the <code>yield</code> keyword. Theres no <code>function*(){}</code> nonsense — a generator in CoffeeScript is simply a function that yields.</p>
<div class='code'><pre><code><span class="function"><span class="title">perfectSquares</span> = -&gt;</span>
num = <span class="number">0</span>
@@ -1984,6 +1986,7 @@ perfectSquares = function*() {
window.ps || (window.ps = perfectSquares());
;alert(ps.next().value);">run: ps.next().value</div><br class='clear' /></div><p><code>yield*</code> is called <code>yield from</code>, and <code>yield return</code> may be used if you need to force a generator that doesnt yield.</p>
<div id="generator-iteration" class="bookmark"></div>
<p>You can iterate over a generator function using <code>for…from</code>.</p>
<div class='code'><pre><code><span class="function"><span class="title">fibonacci</span> = -&gt;</span>
[previous, current] = [<span class="number">1</span>, <span class="number">1</span>]
@@ -2184,7 +2187,7 @@ grade = (<span class="function"><span class="keyword">function</span>(<span clas
</code></pre><script>window.example1 = "try\n allHellBreaksLoose()\n catsAndDogsLivingTogether()\ncatch error\n print error\nfinally\n cleanUp()\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example1);'>load</div><br class='clear' /></div>
<span class="bookmark" id="comparisons"></span>
<h2>Chained Comparisons</h2>
<p>CoffeeScript borrows <a href="http://docs.python.org/reference/expressions.html#notin">chained comparisons</a> from Python — making it easy to test if a value falls within a certain range.</p>
<p>CoffeeScript borrows <a href="https://docs.python.org/3/reference/expressions.html#not-in">chained comparisons</a> from Python — making it easy to test if a value falls within a certain range.</p>
<div class='code'><pre><code>cholesterol = <span class="number">127</span>
healthy = <span class="number">200</span> &gt; cholesterol &gt; <span class="number">60</span>
@@ -2319,7 +2322,7 @@ OPERATOR = <span class="regexp">/^(?:[-=]&gt;|[-+*\/%&lt;&gt;&amp;|^!?=]=|&gt;&g
<h2>Modules</h2>
<p>ES2015 modules are supported in CoffeeScript, with very similar <code>import</code> and <code>export</code> syntax:</p>
<div class='code'><pre><code><span class="keyword">import</span> <span class="string">'local-file.coffee'</span>
<span class="keyword">import</span> <span class="string">'coffee-script'</span>
<span class="keyword">import</span> <span class="string">'coffeescript'</span>
<span class="keyword">import</span> _ <span class="keyword">from</span> <span class="string">'underscore'</span>
<span class="keyword">import</span> * <span class="keyword">as</span> underscore <span class="keyword">from</span> <span class="string">'underscore'</span>
@@ -2342,7 +2345,7 @@ OPERATOR = <span class="regexp">/^(?:[-=]&gt;|[-+*\/%&lt;&gt;&amp;|^!?=]=|&gt;&g
<span class="keyword">export</span> { max, min } <span class="keyword">from</span> <span class="string">'underscore'</span>
</code></pre><pre><code><span class="keyword">import</span> <span class="string">'local-file.coffee'</span>;
<span class="keyword">import</span> <span class="string">'coffee-script'</span>;
<span class="keyword">import</span> <span class="string">'coffeescript'</span>;
<span class="keyword">import</span> _ <span class="keyword">from</span> <span class="string">'underscore'</span>;
@@ -2405,7 +2408,8 @@ OPERATOR = <span class="regexp">/^(?:[-=]&gt;|[-+*\/%&lt;&gt;&amp;|^!?=]=|&gt;&g
max,
min
} <span class="keyword">from</span> <span class="string">'underscore'</span>;
</code></pre><script>window.example1 = "import 'local-file.coffee'\nimport 'coffee-script'\n\nimport _ from 'underscore'\nimport * as underscore from 'underscore'\n\nimport { now } from 'underscore'\nimport { now as currentTimestamp } from 'underscore'\nimport { first, last } from 'underscore'\nimport utilityBelt, { each } from 'underscore'\n\nexport default Math\nexport square = (x) -> x * x\nexport class Mathematics\n least: (x, y) -> if x < y then x else y\n\nexport { sqrt }\nexport { sqrt as squareRoot }\nexport { Mathematics as default, sqrt as squareRoot }\n\nexport * from 'underscore'\nexport { max, min } from 'underscore'\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example1);'>load</div><br class='clear' /></div><p>Note that the CoffeeScript compiler <strong>does not resolve modules</strong>; writing an <code>import</code> or <code>export</code> statement in CoffeeScript will produce an <code>import</code> or <code>export</code> statement in the resulting output. It is your responsibility attach another transpiler, such as <a href="https://github.com/google/traceur-compiler">Traceur Compiler</a>, <a href="http://babeljs.io/">Babel</a> or <a href="https://github.com/rollup/rollup">Rollup</a>, to convert this ES2015 syntax into code that will work in your target runtimes.</p>
</code></pre><script>window.example1 = "import 'local-file.coffee'\nimport 'coffeescript'\n\nimport _ from 'underscore'\nimport * as underscore from 'underscore'\n\nimport { now } from 'underscore'\nimport { now as currentTimestamp } from 'underscore'\nimport { first, last } from 'underscore'\nimport utilityBelt, { each } from 'underscore'\n\nexport default Math\nexport square = (x) -> x * x\nexport class Mathematics\n least: (x, y) -> if x < y then x else y\n\nexport { sqrt }\nexport { sqrt as squareRoot }\nexport { Mathematics as default, sqrt as squareRoot }\n\nexport * from 'underscore'\nexport { max, min } from 'underscore'\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example1);'>load</div><br class='clear' /></div><div id="modules-note" class="bookmark"></div>
<p>Note that the CoffeeScript compiler <strong>does not resolve modules</strong>; writing an <code>import</code> or <code>export</code> statement in CoffeeScript will produce an <code>import</code> or <code>export</code> statement in the resulting output. It is your responsibility attach another transpiler, such as <a href="https://github.com/google/traceur-compiler">Traceur Compiler</a>, <a href="http://babeljs.io/">Babel</a> or <a href="https://github.com/rollup/rollup">Rollup</a>, to convert this ES2015 syntax into code that will work in your target runtimes.</p>
<p>Also note that any file with an <code>import</code> or <code>export</code> statement will be output without a <a href="#lexical-scope">top-level function safety wrapper</a>; in other words, importing or exporting modules will automatically trigger <a href="#usage">bare</a> mode for that file. This is because per the ES2015 spec, <code>import</code> or <code>export</code> statements must occur at the topmost scope.</p>
<span class="bookmark" id="cake"></span>
@@ -2434,16 +2438,16 @@ task(<span class="string">'build:parser'</span>, <span class="string">'rebuild t
dir = options.output || <span class="string">'lib'</span>;
<span class="keyword">return</span> fs.writeFile(dir + <span class="string">"/parser.js"</span>, code);
});
</code></pre><script>window.example1 = "fs = require 'fs'\n\noption '-o', '--output [DIR]', 'directory for compiled code'\n\ntask 'build:parser', 'rebuild the Jison parser', (options) ->\n require 'jison'\n code = require('./lib/grammar').parser.generate()\n dir = options.output or 'lib'\n fs.writeFile \"#{dir}/parser.js\", code\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example1);'>load</div><br class='clear' /></div><p>If you need to invoke one task before another — for example, running <code>build</code> before <code>test</code>, you can use the <code>invoke</code> function: <code>invoke 'build'</code>. Cake tasks are a minimal way to expose your CoffeeScript functions to the command line, so <a href="v1/annotated-source/cake.html">dont expect any fanciness built-in</a>. If you need dependencies, or async callbacks, its best to put them in your code itself — not the cake task.</p>
</code></pre><script>window.example1 = "fs = require 'fs'\n\noption '-o', '--output [DIR]', 'directory for compiled code'\n\ntask 'build:parser', 'rebuild the Jison parser', (options) ->\n require 'jison'\n code = require('./lib/grammar').parser.generate()\n dir = options.output or 'lib'\n fs.writeFile \"#{dir}/parser.js\", code\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example1);'>load</div><br class='clear' /></div><p>If you need to invoke one task before another — for example, running <code>build</code> before <code>test</code>, you can use the <code>invoke</code> function: <code>invoke 'build'</code>. Cake tasks are a minimal way to expose your CoffeeScript functions to the command line, so <a href="/v1/annotated-source/cake.html">dont expect any fanciness built-in</a>. If you need dependencies, or async callbacks, its best to put them in your code itself — not the cake task.</p>
<span class="bookmark" id="source-maps"></span>
<h2>Source Maps</h2>
<p>CoffeeScript 1.6.1 and above include support for generating source maps, a way to tell your JavaScript engine what part of your CoffeeScript program matches up with the code being evaluated. Browsers that support it can automatically use source maps to show your original source code in the debugger. To generate source maps alongside your JavaScript files, pass the <code>--map</code> or <code>-m</code> flag to the compiler.</p>
<p>For a full introduction to source maps, how they work, and how to hook them up in your browser, read the <a href="http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/">HTML5 Tutorial</a>.</p>
<p>For a full introduction to source maps, how they work, and how to hook them up in your browser, read the <a href="https://www.html5rocks.com/en/tutorials/developertools/sourcemaps/">HTML5 Tutorial</a>.</p>
<span class="bookmark" id="scripts"></span>
<h2>“text/coffeescript” Script Tags</h2>
<p>While its not recommended for serious use, CoffeeScripts may be included directly within the browser using <code>&lt;script type=&quot;text/coffeescript&quot;&gt;</code> tags. The source includes a compressed and minified version of the compiler (<a href="v1/browser-compiler/coffee-script.js">Download current version here, 51k when gzipped</a>) as <code>v1/browser-compiler/coffee-script.js</code>. Include this file on a page with inline CoffeeScript tags, and it will compile and evaluate them in order.</p>
<p>While its not recommended for serious use, CoffeeScripts may be included directly within the browser using <code>&lt;script type=&quot;text/coffeescript&quot;&gt;</code> tags. The source includes a compressed and minified version of the compiler (<a href="/v1/browser-compiler/coffee-script.js">Download current version here, 51k when gzipped</a>) as <code>v1/browser-compiler/coffee-script.js</code>. Include this file on a page with inline CoffeeScript tags, and it will compile and evaluate them in order.</p>
<p>In fact, the little bit of glue script that runs “Try CoffeeScript” above, as well as the jQuery for the menu, is implemented in just this way. View source and look at the bottom of the page to see the example. Including the script also gives you access to <code>CoffeeScript.compile()</code> so you can pop open Firebug and try compiling some strings.</p>
<p>The usual caveats about CoffeeScript apply — your inline scripts will run within a closure wrapper, so if you want to expose global variables or functions, attach them to the <code>window</code> object.</p>
@@ -2451,22 +2455,22 @@ task(<span class="string">'build:parser'</span>, <span class="string">'rebuild t
<h2>Books</h2>
<p>There are a number of excellent resources to help you get started with CoffeeScript, some of which are freely available online.</p>
<ul>
<li><a href="http://arcturo.github.com/library/coffeescript/">The Little Book on CoffeeScript</a> is a brief 5-chapter introduction to CoffeeScript, written with great clarity and precision by <a href="http://alexmaccaw.co.uk/">Alex MacCaw</a>.</li>
<li><a href="http://autotelicum.github.com/Smooth-CoffeeScript/">Smooth CoffeeScript</a> is a reimagination of the excellent book <a href="http://eloquentjavascript.net/">Eloquent JavaScript</a>, as if it had been written in CoffeeScript instead. Covers language features as well as the functional and object oriented programming styles. By <a href="https://github.com/autotelicum">E. Hoigaard</a>.</li>
<li><a href="http://arcturo.github.io/library/coffeescript/">The Little Book on CoffeeScript</a> is a brief 5-chapter introduction to CoffeeScript, written with great clarity and precision by <a href="http://alexmaccaw.co.uk/">Alex MacCaw</a>.</li>
<li><a href="http://autotelicum.github.io/Smooth-CoffeeScript/">Smooth CoffeeScript</a> is a reimagination of the excellent book <a href="http://eloquentjavascript.net/">Eloquent JavaScript</a>, as if it had been written in CoffeeScript instead. Covers language features as well as the functional and object oriented programming styles. By <a href="https://github.com/autotelicum">E. Hoigaard</a>.</li>
<li><a href="http://pragprog.com/book/tbcoffee/coffeescript">CoffeeScript: Accelerated JavaScript Development</a> is <a href="http://trevorburnham.com/">Trevor Burnham</a>s thorough introduction to the language. By the end of the book, youll have built a fast-paced multiplayer word game, writing both the client-side and Node.js portions in CoffeeScript.</li>
<li><a href="http://www.packtpub.com/coffeescript-programming-with-jquery-rails-nodejs/book">CoffeeScript Programming with jQuery, Rails, and Node.js</a> 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).</li>
<li><a href="https://www.packtpub.com/web-development/coffeescript-programming-jquery-rails-and-nodejs">CoffeeScript Programming with jQuery, Rails, and Node.js</a> 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).</li>
<li><a href="https://leanpub.com/coffeescript-ristretto/read">CoffeeScript Ristretto</a> is a deep dive into CoffeeScripts semantics from simple functions up through closures, higher-order functions, objects, classes, combinators, and decorators. By <a href="http://braythwayt.com/">Reg Braithwaite</a>.</li>
<li><a href="https://efendibooks.com/minibooks/testing-with-coffeescript">Testing with CoffeeScript</a> is a succinct and freely downloadable guide to building testable applications with CoffeeScript and Jasmine.</li>
<li><a href="http://www.packtpub.com/coffeescript-application-development/book">CoffeeScript Application Development</a> from Packt, introduces CoffeeScript while walking through the process of building a demonstration web application. A <a href="https://www.packtpub.com/web-development/coffeescript-application-development-cookbook">CoffeeScript Application Development Coookbook</a> with over 90 “recipes” is also available.</li>
<li><a href="http://www.manning.com/lee/">CoffeeScript in Action</a> from Manning Publications, covers CoffeeScript syntax, composition techniques and application development.</li>
<li><a href="http://www.dpunkt.de/buecher/4021/coffeescript.html">CoffeeScript: Die Alternative zu JavaScript</a> from dpunkt.verlag, is the first CoffeeScript book in Deutsch.</li>
<li><a href="https://www.packtpub.com/web-development/coffeescript-application-development">CoffeeScript Application Development</a> from Packt, introduces CoffeeScript while walking through the process of building a demonstration web application. A <a href="https://www.packtpub.com/web-development/coffeescript-application-development-cookbook">CoffeeScript Application Development Coookbook</a> with over 90 “recipes” is also available.</li>
<li><a href="https://www.manning.com/books/coffeescript-in-action">CoffeeScript in Action</a> from Manning Publications, covers CoffeeScript syntax, composition techniques and application development.</li>
<li><a href="https://www.dpunkt.de/buecher/4021/coffeescript.html">CoffeeScript: Die Alternative zu JavaScript</a> from dpunkt.verlag, is the first CoffeeScript book in Deutsch.</li>
</ul>
<span class="bookmark" id="screencasts"></span>
<h2>Screencasts</h2>
<ul>
<li><a href="http://coffeescript.codeschool.com">A Sip of CoffeeScript</a> is a <a href="http://www.codeschool.com">Code School Course</a> which combines 6 screencasts with in-browser coding to make learning fun. The first level is free to try out.</li>
<li><a href="http://peepcode.com/products/coffeescript">Meet CoffeeScript</a> is a 75-minute long screencast by <a href="http://peepcode.com/">PeepCode</a>. Highly memorable for its animations which demonstrate transforming CoffeeScript into the equivalent JS.</li>
<li><a href="http://coffeescript.codeschool.com/">A Sip of CoffeeScript</a> is a <a href="https://www.codeschool.com">Code School Course</a> which combines 6 screencasts with in-browser coding to make learning fun. The first level is free to try out.</li>
<li><a href="https://www.pluralsight.com/courses/meet-coffeescript">Meet CoffeeScript</a> is a 75-minute long screencast by PeepCode, now <a href="https://www.pluralsight.com/">PluralSight</a>. Highly memorable for its animations which demonstrate transforming CoffeeScript into the equivalent JS.</li>
<li>If youre looking for less of a time commitment, RailsCasts <a href="http://railscasts.com/episodes/267-coffeescript-basics">CoffeeScript Basics</a> should have you covered, hitting all of the important notes about CoffeeScript in 11 minutes.</li>
</ul>
@@ -2474,10 +2478,9 @@ task(<span class="string">'build:parser'</span>, <span class="string">'rebuild t
<h2>Examples</h2>
<p>The <a href="https://github.com/trending?l=coffeescript&amp;since=monthly">best list of open-source CoffeeScript examples</a> can be found on GitHub. But just to throw out a few more:</p>
<ul>
<li><strong>GitHub</strong>s <a href="http://hubot.github.com/">Hubot</a>, a friendly IRC robot that can perform any number of useful and useless tasks.</li>
<li><strong>GitHub</strong>s <a href="https://hubot.github.com/">Hubot</a>, a friendly IRC robot that can perform any number of useful and useless tasks.</li>
<li><strong>sstephenson</strong>s <a href="http://pow.cx/">Pow</a>, a zero-configuration Rack server, with comprehensive annotated source.</li>
<li><strong>technoweenie</strong>s <a href="https://github.com/technoweenie/coffee-resque">Coffee-Resque</a>, a port of <a href="https://github.com/defunkt/resque">Resque</a> for Node.js.</li>
<li><strong>assaf</strong>s <a href="http://zombie.labnotes.org/">Zombie.js</a>, a headless, full-stack, faux-browser testing library for Node.js.</li>
<li><strong>stephank</strong>s <a href="https://github.com/stephank/orona">Orona</a>, a remake of the Bolo tank game for modern browsers.</li>
<li><strong>GitHub</strong>s <a href="https://atom.io/">Atom</a>, a hackable text editor built on web technologies.</li>
<li><strong>Basecamp</strong>s <a href="https://trix-editor.org/">Trix</a>, a rich text editor for web apps.</li>
@@ -2487,7 +2490,7 @@ task(<span class="string">'build:parser'</span>, <span class="string">'rebuild t
<h2>Resources</h2>
<ul>
<li>
<p><a href="http://github.com/jashkenas/coffeescript/">Source Code</a><br>
<p><a href="https://github.com/jashkenas/coffeescript/">Source Code</a><br>
Use <code>bin/coffee</code> to test your changes,<br>
<code>bin/cake test</code> to run the test suite,<br>
<code>bin/cake build</code> to rebuild the full CoffeeScript compiler, and<br>
@@ -2495,11 +2498,11 @@ Use <code>bin/coffee</code> to test your changes,<br>
<p><code>git checkout lib &amp;&amp; bin/cake build:full</code> is a good command to run when youre working on the core language. Itll refresh the <code>lib</code> folder (in case you broke something), build your altered compiler, use that to rebuild itself (a good sanity test) and then run all of the tests. If they pass, theres a good chance youve made a successful change.</p>
</li>
<li>
<p><a href="v1/test.html">Browser Tests</a><br>
<p><a href="/v1/test.html">Browser Tests</a><br>
Run CoffeeScripts test suite in your current browser.</p>
</li>
<li>
<p><a href="http://github.com/jashkenas/coffeescript/issues">CoffeeScript Issues</a><br>
<p><a href="https://github.com/jashkenas/coffeescript/issues">CoffeeScript Issues</a><br>
Bug reports, feature proposals, and ideas for changes to the language belong here.</p>
</li>
<li>
@@ -2507,11 +2510,11 @@ Bug reports, feature proposals, and ideas for changes to the language belong her
If youd like to ask a question, the mailing list is a good place to get help.</p>
</li>
<li>
<p><a href="http://github.com/jashkenas/coffeescript/wiki">The CoffeeScript Wiki</a><br>
If youve ever learned a neat CoffeeScript tip or trick, or ran into a gotcha — share it on the wiki. The wiki also serves as a directory of handy <a href="http://github.com/jashkenas/coffeescript/wiki/Text-editor-plugins">text editor extensions</a>, <a href="http://github.com/jashkenas/coffeescript/wiki/Web-framework-plugins">web framework plugins</a>, and general <a href="http://github.com/jashkenas/coffeescript/wiki/Build-tools">CoffeeScript build tools</a>.</p>
<p><a href="https://github.com/jashkenas/coffeescript/wiki">The CoffeeScript Wiki</a><br>
If youve ever learned a neat CoffeeScript tip or trick, or ran into a gotcha — share it on the wiki. The wiki also serves as a directory of handy <a href="https://github.com/jashkenas/coffeescript/wiki/Text-editor-plugins">text editor extensions</a>, <a href="https://github.com/jashkenas/coffeescript/wiki/Web-framework-plugins">web framework plugins</a>, and general <a href="https://github.com/jashkenas/coffeescript/wiki/Build-tools">CoffeeScript build tools</a>.</p>
</li>
<li>
<p><a href="http://github.com/jashkenas/coffeescript/wiki/FAQ">The FAQ</a><br>
<p><a href="https://github.com/jashkenas/coffeescript/wiki/FAQ">The FAQ</a><br>
Perhaps your CoffeeScript-related question has been asked before. Check the FAQ first.</p>
</li>
<li>
@@ -2531,6 +2534,18 @@ The CoffeeScript logo is available in SVG for use in presentations.</p>
<span class="bookmark" id="changelog"></span>
<h2>Change Log</h2>
<div class="anchor" id="1.12.6"></div>
<h2 class="header">
<a href="https://github.com/jashkenas/coffeescript/compare/1.12.5...1.12.6">1.12.6</a>
<span class="timestamp"> &mdash; <time datetime="2017-05-15">May 15, 2017</time></span>
</h2><ul>
<li>The <code>return</code> and <code>export</code> keywords can now accept implicit objects (defined by indentation, without needing braces).</li>
<li>Support Unicode code point escapes (e.g. <code>\u{1F4A9}</code>).</li>
<li>The <code>coffee</code> command now first looks to see if CoffeeScript is installed under <code>node_modules</code> in the current folder, and executes the <code>coffee</code> 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 <code>cake</code> command.)</li>
<li>Bugfixes for chained function calls not closing implicit objects or ternaries.</li>
<li>Bugfixes for incorrect code generated by the <code>?</code> operator within a termary <code>if</code> statement.</li>
<li>Fixed some tests, and failing tests now result in a nonzero exit code.</li>
</ul>
<div class="anchor" id="1.12.5"></div>
<h2 class="header">
<a href="https://github.com/jashkenas/coffeescript/compare/1.12.4...1.12.5">1.12.5</a>
@@ -2566,7 +2581,7 @@ The CoffeeScript logo is available in SVG for use in presentations.</p>
<li>The browser compiler can once again be built unminified via <code>MINIFY=false cake build:browser</code>.</li>
<li>The error-prone patched version of <code>Error.prepareStackTrace</code> has been removed.</li>
<li>Command completion in the REPL (pressing tab to get suggestions) has been fixed for Node 6.9.1+.</li>
<li>The <a href="v1/test.html">browser-based tests</a> now include all the tests as the Node-based version.</li>
<li>The <a href="/v1/test.html">browser-based tests</a> now include all the tests as the Node-based version.</li>
</ul>
<div class="anchor" id="1.12.1"></div>
<h2 class="header">
@@ -2585,7 +2600,7 @@ The CoffeeScript logo is available in SVG for use in presentations.</p>
<li>CoffeeScript now provides a <a href="#generator-iteration"><code>for…from</code></a> syntax for outputting ES2015 <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/for...of"><code>for…of</code></a>. (Sorry they couldnt match, but we came up with <code>for…of</code> first for something else.) This allows iterating over generators or any other iterable object. Note that using <code>for…from</code> in your code makes you responsible for ensuring that either your runtime supports <code>for…of</code> or that you transpile the output JavaScript further to a version your target runtime(s) support.</li>
<li>Triple backticks (<code>```</code>) 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.</li>
<li>Within single-backtick embedded JavaScript, backticks can now be escaped via <code>\`</code>.</li>
<li>The browser tests now run in the browser again, and are accessible <a href="v1/test.html">here</a> if you would like to test your browser.</li>
<li>The browser tests now run in the browser again, and are accessible <a href="/v1/test.html">here</a> if you would like to test your browser.</li>
<li>CoffeeScript-only keywords in ES2015 <code>import</code>s and <code>export</code>s are now ignored.</li>
<li>The compiler now throws an error on trying to export an anonymous class.</li>
<li>Bugfixes related to tokens and location data, for better source maps and improved compatibility with downstream tools.</li>
@@ -2800,7 +2815,7 @@ six = -&gt;
<a href="https://github.com/jashkenas/coffeescript/compare/1.5.0...1.6.1">1.6.1</a>
<span class="timestamp"> &mdash; <time datetime="2013-03-05">March 5, 2013</time></span>
</h2><ul>
<li>First release of <a href="#source-maps">source maps</a>. Pass the <code>--map</code> flag to the compiler, and off you go. Direct all your thanks over to <a href="http://github.com/jwalton">Jason Walton</a>.</li>
<li>First release of <a href="#source-maps">source maps</a>. Pass the <code>--map</code> flag to the compiler, and off you go. Direct all your thanks over to <a href="https://github.com/jwalton">Jason Walton</a>.</li>
<li>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 isnt good <em>style</em> to nest them too heavily.</li>
<li><code>.coffee.md</code> is now also supported as a Literate CoffeeScript file extension, for existing tooling. <code>.litcoffee</code> remains the canonical one.</li>
<li>Several minor fixes surrounding member properties, bound methods and <code>super</code> in class declarations.</li>
@@ -2907,7 +2922,7 @@ six = -&gt;
<h2 class="header">
<a href="https://github.com/jashkenas/coffeescript/compare/0.9.4...0.9.5">0.9.5</a>
<span class="timestamp"> &mdash; <time datetime="2010-11-21">November 21, 2010</time></span>
</h2><p>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 <strong>satyr</strong>s <a href="http://github.com/satyr/coco">Coco</a> 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. <code>undefined</code> now works like <code>null</code>, and cannot be assigned a new value. There was a precedence change with respect to single-line comprehensions: <code>result = i for i in list</code>
</h2><p>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 <strong>satyr</strong>s <a href="https://github.com/satyr/coco">Coco</a> 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. <code>undefined</code> now works like <code>null</code>, and cannot be assigned a new value. There was a precedence change with respect to single-line comprehensions: <code>result = i for i in list</code>
used to parse as <code>result = (i for i in list)</code> by default … it now parses as
<code>(result = i) for i in list</code>.</p>
<div class="anchor" id="0.9.4"></div>
@@ -2974,7 +2989,7 @@ used to parse as <code>result = (i for i in list)</code> by default … it now p
<h2 class="header">
<a href="https://github.com/jashkenas/coffeescript/compare/0.5.4...0.5.5">0.5.5</a>
<span class="timestamp"> &mdash; <time datetime="2010-03-08">March 8, 2010</time></span>
</h2><p>String interpolation, contributed by <a href="http://github.com/StanAngeloff">Stan Angeloff</a>. Since <code>--run</code> has been the default since <strong>0.5.3</strong>, updating <code>--stdio</code> and <code>--eval</code> to run by default, pass <code>--compile</code> as well if youd like to print the result.</p>
</h2><p>String interpolation, contributed by <a href="https://github.com/StanAngeloff">Stan Angeloff</a>. Since <code>--run</code> has been the default since <strong>0.5.3</strong>, updating <code>--stdio</code> and <code>--eval</code> to run by default, pass <code>--compile</code> as well if youd like to print the result.</p>
<div class="anchor" id="0.5.4"></div>
<h2 class="header">
<a href="https://github.com/jashkenas/coffeescript/compare/0.5.3...0.5.4">0.5.4</a>
@@ -2990,7 +3005,7 @@ used to parse as <code>result = (i for i in list)</code> by default … it now p
<a href="https://github.com/jashkenas/coffeescript/compare/0.5.1...0.5.2">0.5.2</a>
<span class="timestamp"> &mdash; <time datetime="2010-02-25">February 25, 2010</time></span>
</h2><p>Added a compressed version of the compiler for inclusion in web pages as
<code>v1/browser-compiler/coffee-script.js</code>. Itll automatically run any script tags with type <code>text/coffeescript</code> for you. Added a <code>--stdio</code> option to the <code>coffee</code> command, for piped-in compiles.</p>
<code>/v1/browser-compiler/coffee-script.js</code>. Itll automatically run any script tags with type <code>text/coffeescript</code> for you. Added a <code>--stdio</code> option to the <code>coffee</code> command, for piped-in compiles.</p>
<div class="anchor" id="0.5.1"></div>
<h2 class="header">
<a href="https://github.com/jashkenas/coffeescript/compare/0.5.0...0.5.1">0.5.1</a>
@@ -3056,7 +3071,7 @@ The <code>extends</code> keyword now functions identically to <code>goog.inherit
<h2 class="header">
<a href="https://github.com/jashkenas/coffeescript/compare/0.1.6...0.2.0">0.2.0</a>
<span class="timestamp"> &mdash; <time datetime="2010-01-05">January 5, 2010</time></span>
</h2><p>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 <a href="http://github.com/liamoc">Liam OConnor-Davis</a> for whitespace and expression help.</p>
</h2><p>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 <a href="https://github.com/liamoc">Liam OConnor-Davis</a> for whitespace and expression help.</p>
<div class="anchor" id="0.1.6"></div>
<h2 class="header">
<a href="https://github.com/jashkenas/coffeescript/compare/0.1.5...0.1.6">0.1.6</a>
@@ -3071,7 +3086,7 @@ The <code>extends</code> keyword now functions identically to <code>goog.inherit
<h2 class="header">
<a href="https://github.com/jashkenas/coffeescript/compare/0.1.3...0.1.4">0.1.4</a>
<span class="timestamp"> &mdash; <time datetime="2009-12-25">December 25, 2009</time></span>
</h2><p>The official CoffeeScript extension is now <code>.coffee</code> instead of <code>.cs</code>, which properly belongs to <a href="http://en.wikipedia.org/wiki/C_Sharp_(programming_language)">C#</a>. Due to popular demand, you can now also use <code>=</code> to assign. Unlike JavaScript, <code>=</code> can also be used within object literals, interchangeably with <code>:</code>. Made a grammatical fix for chained function calls like <code>func(1)(2)(3)(4)</code>. Inheritance and super no longer use <code>__proto__</code>, so they should be IE-compatible now.</p>
</h2><p>The official CoffeeScript extension is now <code>.coffee</code> instead of <code>.cs</code>, which properly belongs to <a href="https://en.wikipedia.org/wiki/C_Sharp_(programming_language)">C#</a>. Due to popular demand, you can now also use <code>=</code> to assign. Unlike JavaScript, <code>=</code> can also be used within object literals, interchangeably with <code>:</code>. Made a grammatical fix for chained function calls like <code>func(1)(2)(3)(4)</code>. Inheritance and super no longer use <code>__proto__</code>, so they should be IE-compatible now.</p>
<div class="anchor" id="0.1.3"></div>
<h2 class="header">
<a href="https://github.com/jashkenas/coffeescript/compare/0.1.2...0.1.3">0.1.3</a>

View File

@@ -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", ->
@@ -4684,6 +4699,68 @@ 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}'
\ ^\^^^^^^^^^^^^^
'''
</script>
<script type="text/x-coffeescript" class="test" id="eval">
if vm = require? 'vm'
@@ -4994,6 +5071,9 @@ test "indented heredoc", ->
# * single line arguments
# * inline function literal
# * inline object literal
#
# * chaining inside
# * implicit object literal
test "chaining after outdent", ->
id = (x) -> x
@@ -5064,6 +5144,37 @@ 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
# Nested blocks caused by paren unwrapping
test "#1492: Nested blocks don't cause double semicolons", ->
js = CoffeeScript.compile '(0;0)'
@@ -7635,12 +7746,6 @@ 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", ->
@@ -7952,6 +8057,28 @@ 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 = """
@@ -9151,6 +9278,18 @@ 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
@@ -10117,6 +10256,35 @@ test "#3795: Escape otherwise invalid characters", ->
ok ///#{a}\0
1///.test 'a\x001'
test "#4248: Unicode code point escapes", ->
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
@@ -10188,6 +10356,11 @@ 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()
@@ -10861,10 +11034,10 @@ 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}}"
@@ -11307,6 +11480,36 @@ 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

View File

@@ -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 were not in a browser environment, were 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 were not in a browser environment, were 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 weve got a base64 encoder, a
JSON serializer, and tools for escaping unicode characters, were 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>

View File

@@ -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 directorys 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>
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@@ -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>
@@ -493,13 +490,16 @@ or traverse it by using <code>.traverseChildren()</code> with a callback.</p>
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<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>
<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 dont choke on Node packages when compiling for a non-Node
environment.</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>
<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>
@@ -510,221 +510,6 @@ setting <code>__filename</code>, <code>__dirname</code>, and relative <code>requ
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<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>
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<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>
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<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>
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<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 = compile code, options
code = answer.js ? answer
mainModule._compile code, mainModule.filename</pre></div></div>
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</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>
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<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>
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</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>
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</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>
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<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>
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</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>
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</div>
<p>Instantiate a Lexer for our use here.</p>
</div>
@@ -734,11 +519,11 @@ information to error so it can be pretty-printed later.</p>
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<li id="section-21">
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</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
@@ -766,11 +551,11 @@ directly as a “Jison lexer”.</p>
</li>
<li id="section-32">
<li id="section-22">
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</div>
<p>Make all the AST nodes visible to the parser.</p>
@@ -781,11 +566,11 @@ directly as a “Jison lexer”.</p>
</li>
<li id="section-33">
<li id="section-23">
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</div>
<p>Override Jisons default error handling function.</p>
@@ -796,11 +581,11 @@ directly as a “Jison lexer”.</p>
</li>
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<li id="section-24">
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</div>
<p>Disregard Jisons message, it contains redundant line number information.
Disregard the token, we take its value directly from the lexer in case
@@ -824,11 +609,11 @@ the error is caused by a generated token which might refer to its origin.</p>
</li>
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<li id="section-25">
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</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 +627,11 @@ from the lexer.</p>
</li>
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<li id="section-26">
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</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 +659,11 @@ Modified to handle sourceMap</p>
</li>
<li id="section-37">
<li id="section-27">
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<a class="pilcrow" href="#section-27">&#182;</a>
</div>
<p>Check for a sourceMap position</p>
@@ -923,11 +708,11 @@ Modified to handle sourceMap</p>
</li>
<li id="section-38">
<li id="section-28">
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<a class="pilcrow" href="#section-28">&#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
@@ -949,11 +734,11 @@ filename of the script file.</p>
</li>
<li id="section-39">
<li id="section-29">
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<a class="pilcrow" href="#section-29">&#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

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@@ -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>
@@ -238,7 +238,10 @@ 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>
@@ -256,6 +259,7 @@ 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>
optionParser = buildCSOptionParser()
parseOptions()</pre></div></div>
</li>
@@ -771,7 +775,6 @@ 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)
@@ -856,7 +859,7 @@ 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>
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@@ -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>
@@ -221,7 +221,7 @@ previous nonterminal.</p>
<div class="pilwrap ">
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</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>
@@ -238,7 +238,7 @@ previous nonterminal.</p>
<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
in, and returns the parameter. If the parameter is not a node, it will
just be passed through unaffected.</p>
</div>
@@ -292,7 +292,7 @@ just be passed through unaffected.</p>
the key to a list of alternative matches. With each matchs 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>
@@ -446,6 +446,7 @@ 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: [
@@ -541,6 +542,7 @@ 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 :
@@ -574,6 +576,40 @@ the ordinary <strong>Assign</strong> is that these allow numbers and strings as
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</div>
<p>Object literal spread properties.</p>
</div>
<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">'ObjSpreadExpr ...'</span>, <span class="hljs-function">-&gt;</span> <span class="hljs-keyword">new</span> Splat $<span class="hljs-number">1</span>
]
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>
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>
]
ObjSpreadIdentifier: [
o <span class="hljs-string">'SimpleObjAssignable . Property'</span>, <span class="hljs-function">-&gt;</span> (<span class="hljs-keyword">new</span> Value $<span class="hljs-number">1</span>).add(<span class="hljs-keyword">new</span> Access $<span class="hljs-number">3</span>)
o <span class="hljs-string">'SimpleObjAssignable INDEX_START IndexValue INDEX_END'</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">3</span>)
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<p>A return statement from a function body.</p>
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@@ -596,11 +632,11 @@ the ordinary <strong>Assign</strong> is that these allow numbers and strings as
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<p>A block comment.</p>
@@ -613,11 +649,11 @@ the ordinary <strong>Assign</strong> is that these allow numbers and strings as
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<p>The <strong>Code</strong> node is the function literal. Its defined by an indented block
of <strong>Block</strong> preceded by a function arrow, with an optional parameter list.</p>
@@ -632,11 +668,11 @@ of <strong>Block</strong> preceded by a function arrow, with an optional paramet
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<p>CoffeeScript has two different symbols for functions. <code>-&gt;</code> is for ordinary
functions, and <code>=&gt;</code> is for functions bound to the current value of <em>this</em>.</p>
@@ -651,11 +687,11 @@ functions, and <code>=&gt;</code> is for functions bound to the current value of
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<p>An optional, trailing comma.</p>
@@ -669,11 +705,11 @@ functions, and <code>=&gt;</code> is for functions bound to the current value of
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<p>The list of parameters that a function accepts can be of any length.</p>
@@ -690,11 +726,11 @@ functions, and <code>=&gt;</code> is for functions bound to the current value of
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<p>A single parameter in a function definition can be ordinary, or a splat
that hoovers up the remaining arguments.</p>
@@ -711,11 +747,11 @@ that hoovers up the remaining arguments.</p>
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<p>Function Parameters</p>
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<p>A splat that occurs outside of a parameter list.</p>
@@ -748,11 +784,11 @@ that hoovers up the remaining arguments.</p>
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<p>Variables and properties that can be assigned to.</p>
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<p>Everything that can be assigned to.</p>
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<p>The types of things that can be treated as values assigned to, invoked
as functions, indexed into, named as a class, etc.</p>
@@ -810,11 +846,11 @@ as functions, indexed into, named as a class, etc.</p>
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<p>A <code>super</code>-based expression that can be used as a value.</p>
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<p>The general group of accessors into an object, by property, by prototype
or by array index or slice.</p>
@@ -851,11 +887,11 @@ or by array index or slice.</p>
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<p>Indexing into an object or array using bracket notation.</p>
@@ -874,11 +910,11 @@ or by array index or slice.</p>
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<p>In CoffeeScript, an object literal is simply a list of assignments.</p>
@@ -891,11 +927,11 @@ or by array index or slice.</p>
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<p>Assignment of properties within an object literal can be separated by
comma, as in JavaScript, or simply by newline.</p>
@@ -913,11 +949,11 @@ comma, as in JavaScript, or simply by newline.</p>
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<p>Class definitions have optional bodies of prototype property assignments,
and optional references to the superclass.</p>
@@ -996,16 +1032,17 @@ 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>
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<p>Ordinary function invocation, or a chained series of calls.</p>
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<p>An optional existence check on a function.</p>
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<p>The list of arguments to a function call.</p>
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<p>A reference to the <em>this</em> current object.</p>
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<p>A reference to a property on <em>this</em>.</p>
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<p>The array literal.</p>
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<p>Inclusive and exclusive range dots.</p>
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<p>The CoffeeScript range literal.</p>
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<p>Array slice literals.</p>
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<p>The <strong>ArgList</strong> is both the list of objects passed into a function call,
as well as the contents of an array literal
@@ -1188,11 +1225,11 @@ as well as the contents of an array literal
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<p>Valid arguments are Blocks or Splats.</p>
@@ -1207,11 +1244,11 @@ as well as the contents of an array literal
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<p>Just simple, comma-separated, required arguments (no fancy syntax). We need
this to be separate from the <strong>ArgList</strong> for use in <strong>Switch</strong> blocks, where
@@ -1227,11 +1264,11 @@ having the newlines wouldnt make sense.</p>
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<p>The variants of <em>try/catch/finally</em> exception handling blocks.</p>
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<p>A catch clause names its error and runs a block of code.</p>
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<p>Throw an exception object.</p>
@@ -1283,11 +1320,11 @@ having the newlines wouldnt make sense.</p>
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<p>Parenthetical expressions. Note that the <strong>Parenthetical</strong> is a <strong>Value</strong>,
not an <strong>Expression</strong>, so if you need to use an expression in a place
@@ -1304,11 +1341,11 @@ the trick.</p>
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<p>The condition portion of a while loop.</p>
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<p>The while loop can either be normal, with a block of expressions to execute,
or postfix, with a single expression. There is no do..while.</p>
@@ -1350,11 +1387,11 @@ or postfix, with a single expression. There is no do..while.</p>
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<p>Array, object, and range comprehensions, at the most generic level.
Comprehensions can either be normal, with a block of expressions to execute,
@@ -1382,11 +1419,11 @@ or postfix, with a single expression.</p>
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<p>An array of all accepted values for a variable inside the loop.
This enables support for pattern matching.</p>
@@ -1403,11 +1440,11 @@ This enables support for pattern matching.</p>
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<p>An array or range comprehension has variables for the current element
and (optional) reference to the current index. Or, <em>key, value</em>, in the case
@@ -1423,11 +1460,11 @@ of object comprehensions.</p>
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<p>The source of a comprehension is an array or object with an optional guard
clause. If its an array comprehension, you can also choose to step through
@@ -1462,11 +1499,11 @@ in fixed-size increments.</p>
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<p>An individual <strong>When</strong> clause, with action.</p>
@@ -1480,11 +1517,11 @@ in fixed-size increments.</p>
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<p>The most basic form of <em>if</em> is a condition and an action. The following
if-related rules are broken up along these lines in order to avoid
@@ -1500,11 +1537,11 @@ ambiguity.</p>
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<p>The full complement of <em>if</em> expressions, including postfix one-liner
<em>if</em> and <em>unless</em>.</p>
@@ -1521,11 +1558,11 @@ ambiguity.</p>
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<p>Arithmetic and logical operators, working on one or more operands.
Here they are grouped by order of precedence. The actual precedence rules
@@ -1552,11 +1589,11 @@ rules are necessary.</p>
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<p><a href="http://coffeescript.org/#existential-operator">The existential operator</a>.</p>
@@ -1589,32 +1626,19 @@ 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>
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<h2 id="precedence">Precedence</h2>
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<h2 id="precedence">Precedence</h2>
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<p>Operators at the top of this list have higher precedence than the ones lower
down. Following these rules is what makes <code>2 + 3 * 4</code> parse as:</p>
<pre><code><span class="hljs-number">2</span> + (<span class="hljs-number">3</span> * <span class="hljs-number">4</span>)
@@ -1665,26 +1701,14 @@ down. Following these rules is what makes <code>2 + 3 * 4</code> parse as:</p>
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<h2 id="wrapping-up">Wrapping Up</h2>
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<h2 id="wrapping-up">Wrapping Up</h2>
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@@ -1696,6 +1720,18 @@ down. Following these rules is what makes <code>2 + 3 * 4</code> parse as:</p>
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<p>Finally, now that we have our <strong>grammar</strong> and our <strong>operators</strong>, we can create
our <strong>Jison.Parser</strong>. We do this by processing all of our rules, recording all
terminals (every symbol which does not appear as the name of a rule above)
@@ -1714,11 +1750,11 @@ as “tokens”.</p>
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<p>Initialize the <strong>Parser</strong> with our list of terminal <strong>tokens</strong>, our <strong>grammar</strong>
rules, and the name of the root. Reverse the operators because Jison orders

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@@ -121,9 +121,6 @@ arrays, count characters, that sort of thing.</p>
</div>
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marked = <span class="hljs-built_in">require</span> <span class="hljs-string">'marked'</span></pre></div></div>
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@@ -133,27 +130,6 @@ marked = <span class="hljs-built_in">require</span> <span class="hljs-string">'m
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<p>marked.setOptions
renderer: new marked.Renderer()
gfm: true
tables: true
breaks: false
pedantic: false
sanitize: true
smartLists: true
smartypants: false</p>
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<p>Peek at the beginning of a given string to see if it matches a sequence.</p>
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@@ -164,11 +140,11 @@ marked = <span class="hljs-built_in">require</span> <span class="hljs-string">'m
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<p>Peek at the end of a given string to see if it matches a sequence.</p>
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<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
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<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
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<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
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<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
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<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>
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<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>
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<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>
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<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>
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<p>Typical Array::some</p>
@@ -346,82 +322,53 @@ looking for a particular method in an options hash.</p>
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<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>
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<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>
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<p>Create a placeholder for tabs, that isnt used anywhere in <code>code</code>, and then
re-insert the tabs after code extraction.</p>
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<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>
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<p>Parse as markdown, discard everything except code blocks.</p>
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<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>
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<p>Put the tabs back in.</p>
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<div class="content"><div class='highlight'><pre> out.replace token, <span class="hljs-string">"\t"</span>
out</pre></div></div>
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<p>Merge two jison-style location data objects together.
If <code>last</code> is not provided, this will simply return <code>first</code>.</p>
@@ -440,11 +387,11 @@ If <code>last</code> is not provided, this will simply return <code>first</code>
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<p>This returns a function which takes an object as a parameter, and if that
object is an AST node, updates that objects locationData.
@@ -462,11 +409,11 @@ The object is returned either way.</p>
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<p>Convert jison location data to a string.
<code>obj</code> can be a token, or a locationData.</p>
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<p>A <code>.coffee.md</code> compatible version of <code>basename</code>, that returns the file sans-extension.</p>
@@ -509,11 +456,11 @@ The object is returned either way.</p>
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<p>Determine if a filename represents a CoffeeScript file.</p>
@@ -524,11 +471,11 @@ The object is returned either way.</p>
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<p>Determine if a filename represents a Literate CoffeeScript file.</p>
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<p>Throws a SyntaxError from a given location.
The errors <code>toString</code> will return an error message following the “standard”
@@ -560,11 +507,11 @@ marker showing where the error is.</p>
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<p>Instead of showing the compilers stacktrace, show our custom error message
(this is useful when the error bubbles up in Node.js applications that
@@ -579,11 +526,11 @@ compile CoffeeScript for example).</p>
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<p>Update a compiler SyntaxError with source code information if it didnt have
it already.</p>
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<p>Avoid screwing up the <code>stack</code> property of other errors (i.e. possible bugs).</p>
@@ -625,11 +572,11 @@ it already.</p>
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<p>Show only the first line on multi-line errors.</p>
@@ -641,11 +588,11 @@ it already.</p>
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<p>Check to see if were running on a color-enabled TTY.</p>

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<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
compile = CoffeeScript.compile</pre></div></div>
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<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>
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<p>Set the filename.</p>
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<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>
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<p>Clear the module cache.</p>
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<div class="content"><div class='highlight'><pre> mainModule.moduleCache <span class="hljs-keyword">and</span>= {}</pre></div></div>
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<p>Assign paths for node_modules loading</p>
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<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>
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<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 = compile code, options
code = answer.js ? answer
mainModule._compile code, mainModule.filename</pre></div></div>
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<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>
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<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>
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<p>use the same hack node currently uses for their own REPL</p>
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<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
CoffeeScript.register = <span class="hljs-function">-&gt;</span> <span class="hljs-built_in">require</span> <span class="hljs-string">'./register'</span></pre></div></div>
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<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>
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<div class="annotation">
<div class="pilwrap ">
<a class="pilcrow" href="#section-11">&#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-12">
<div class="annotation">
<div class="pilwrap ">
<a class="pilcrow" href="#section-12">&#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>

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@@ -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>

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@@ -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>

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@@ -122,12 +122,14 @@
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>
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>
@@ -256,7 +258,7 @@ 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 +587,7 @@ 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>

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@@ -124,6 +124,9 @@ parentheses, and generally clean things up.</p>
</div>
<div class="content"><div class='highlight'><pre>
{throwSyntaxError} = <span class="hljs-built_in">require</span> <span class="hljs-string">'./helpers'</span></pre></div></div>
</li>
@@ -157,7 +160,7 @@ 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 +171,16 @@ 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 its 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>
@@ -182,22 +190,19 @@ 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 its 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()
@tagPostfixConditionals()
@addImplicitBracesAndParens()
@addLocationDataToGeneratedTokens()
@enforceValidCSXAttributes()
@fixOutdentLocationData()
@tokens</pre></div></div>
@@ -224,16 +229,18 @@ our feet.</p>
i += block.call <span class="hljs-keyword">this</span>, token, i, tokens <span class="hljs-keyword">while</span> token = tokens[i]
<span class="hljs-literal">true</span>
detectEnd: <span class="hljs-function"><span class="hljs-params">(i, condition, action)</span> -&gt;</span>
detectEnd: <span class="hljs-function"><span class="hljs-params">(i, condition, action, opts = {})</span> -&gt;</span>
{tokens} = <span class="hljs-keyword">this</span>
levels = <span class="hljs-number">0</span>
<span class="hljs-keyword">while</span> token = tokens[i]
<span class="hljs-keyword">return</span> action.call <span class="hljs-keyword">this</span>, token, i <span class="hljs-keyword">if</span> levels <span class="hljs-keyword">is</span> <span class="hljs-number">0</span> <span class="hljs-keyword">and</span> condition.call <span class="hljs-keyword">this</span>, token, i
<span class="hljs-keyword">return</span> action.call <span class="hljs-keyword">this</span>, token, i - <span class="hljs-number">1</span> <span class="hljs-keyword">if</span> <span class="hljs-keyword">not</span> token <span class="hljs-keyword">or</span> levels &lt; <span class="hljs-number">0</span>
<span class="hljs-keyword">return</span> action.call <span class="hljs-keyword">this</span>, token, i <span class="hljs-keyword">if</span> levels <span class="hljs-keyword">is</span> <span class="hljs-number">0</span> <span class="hljs-keyword">and</span> condition.call <span class="hljs-keyword">this</span>, token, i
<span class="hljs-keyword">if</span> token[<span class="hljs-number">0</span>] <span class="hljs-keyword">in</span> EXPRESSION_START
levels += <span class="hljs-number">1</span>
<span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span> token[<span class="hljs-number">0</span>] <span class="hljs-keyword">in</span> EXPRESSION_END
levels -= <span class="hljs-number">1</span>
<span class="hljs-keyword">if</span> levels &lt; <span class="hljs-number">0</span>
<span class="hljs-keyword">return</span> <span class="hljs-keyword">if</span> opts.returnOnNegativeLevel
<span class="hljs-keyword">return</span> action.call <span class="hljs-keyword">this</span>, token, i
i += <span class="hljs-number">1</span>
i - <span class="hljs-number">1</span></pre></div></div>
@@ -265,18 +272,16 @@ dispatch them here.</p>
<a class="pilcrow" href="#section-8">&#182;</a>
</div>
<p>The lexer has tagged the opening parenthesis of a method call. Match it with
its paired close. We have the mis-nested outdent case included here for
calls that close on the same line, just before their outdent.</p>
its paired close.</p>
</div>
<div class="content"><div class='highlight'><pre> closeOpenCalls: <span class="hljs-function">-&gt;</span>
<span class="hljs-function"> <span class="hljs-title">condition</span> = <span class="hljs-params">(token, i)</span> -&gt;</span>
token[<span class="hljs-number">0</span>] <span class="hljs-keyword">in</span> [<span class="hljs-string">')'</span>, <span class="hljs-string">'CALL_END'</span>] <span class="hljs-keyword">or</span>
token[<span class="hljs-number">0</span>] <span class="hljs-keyword">is</span> <span class="hljs-string">'OUTDENT'</span> <span class="hljs-keyword">and</span> @tag(i - <span class="hljs-number">1</span>) <span class="hljs-keyword">is</span> <span class="hljs-string">')'</span>
token[<span class="hljs-number">0</span>] <span class="hljs-keyword">in</span> [<span class="hljs-string">')'</span>, <span class="hljs-string">'CALL_END'</span>]
<span class="hljs-function">
<span class="hljs-title">action</span> = <span class="hljs-params">(token, i)</span> -&gt;</span>
@tokens[<span class="hljs-keyword">if</span> token[<span class="hljs-number">0</span>] <span class="hljs-keyword">is</span> <span class="hljs-string">'OUTDENT'</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>] = <span class="hljs-string">'CALL_END'</span>
token[<span class="hljs-number">0</span>] = <span class="hljs-string">'CALL_END'</span>
@scanTokens (token, i) -&gt;
@detectEnd i + <span class="hljs-number">1</span>, condition, action <span class="hljs-keyword">if</span> token[<span class="hljs-number">0</span>] <span class="hljs-keyword">is</span> <span class="hljs-string">'CALL_START'</span>
@@ -291,7 +296,7 @@ calls that close on the same line, just before their outdent.</p>
<div class="pilwrap ">
<a class="pilcrow" href="#section-9">&#182;</a>
</div>
<p>The lexer has tagged the opening parenthesis of an indexing operation call.
<p>The lexer has tagged the opening bracket of an indexing operation call.
Match it with its paired close.</p>
</div>
@@ -416,7 +421,7 @@ add them.</p>
@scanTokens (token, i, tokens) -&gt;
[tag] = token
[prevTag] = prevToken = <span class="hljs-keyword">if</span> i &gt; <span class="hljs-number">0</span> <span class="hljs-keyword">then</span> tokens[i - <span class="hljs-number">1</span>] <span class="hljs-keyword">else</span> []
[nextTag] = <span class="hljs-keyword">if</span> i &lt; tokens.length - <span class="hljs-number">1</span> <span class="hljs-keyword">then</span> tokens[i + <span class="hljs-number">1</span>] <span class="hljs-keyword">else</span> []
[nextTag] = nextToken = <span class="hljs-keyword">if</span> i &lt; tokens.length - <span class="hljs-number">1</span> <span class="hljs-keyword">then</span> tokens[i + <span class="hljs-number">1</span>] <span class="hljs-keyword">else</span> []
<span class="hljs-function"> <span class="hljs-title">stackTop</span> = -&gt;</span> stack[stack.length - <span class="hljs-number">1</span>]
startIdx = i</pre></div></div>
@@ -449,9 +454,12 @@ 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>
@@ -467,32 +475,37 @@ class declaration or if-conditionals)</p>
</div>
<div class="content"><div class='highlight'><pre><span class="hljs-function"> <span class="hljs-title">inImplicitControl</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">'CONTROL'</span>
<div class="content"><div class='highlight'><pre><span class="hljs-function"> <span class="hljs-title">inImplicitControl</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">'CONTROL'</span>
<span class="hljs-function">
<span class="hljs-title">startImplicitCall</span> = <span class="hljs-params">(j)</span> -&gt;</span>
idx = j ? i
<span class="hljs-title">startImplicitCall</span> = <span class="hljs-params">(idx)</span> -&gt;</span>
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>
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>
stack.pop()
tokens.splice i, <span class="hljs-number">0</span>, generate <span class="hljs-string">'CALL_END'</span>, <span class="hljs-string">')'</span>, [<span class="hljs-string">''</span>, <span class="hljs-string">'end of input'</span>, token[<span class="hljs-number">2</span>]]
i += <span class="hljs-number">1</span>
<span class="hljs-function">
<span class="hljs-title">startImplicitObject</span> = <span class="hljs-params">(j, startsLine = <span class="hljs-literal">yes</span>)</span> -&gt;</span>
idx = j ? i
<span class="hljs-title">startImplicitObject</span> = <span class="hljs-params">(idx, startsLine = <span class="hljs-literal">yes</span>)</span> -&gt;</span>
stack.push [<span class="hljs-string">'{'</span>, idx, sameLine: <span class="hljs-literal">yes</span>, startsLine: startsLine, ours: <span class="hljs-literal">yes</span>]
val = <span class="hljs-keyword">new</span> String <span class="hljs-string">'{'</span>
val.generated = <span class="hljs-literal">yes</span>
tokens.splice idx, <span class="hljs-number">0</span>, generate <span class="hljs-string">'{'</span>, val, token
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">endImplicitObject</span> = <span class="hljs-params">(j)</span> -&gt;</span>
j = j ? i
stack.pop()
tokens.splice j, <span class="hljs-number">0</span>, generate <span class="hljs-string">'}'</span>, <span class="hljs-string">'}'</span>, token
i += <span class="hljs-number">1</span></pre></div></div>
i += <span class="hljs-number">1</span>
<span class="hljs-function">
<span class="hljs-title">implicitObjectContinues</span> = <span class="hljs-params">(j)</span> =&gt;</span>
nextTerminatorIdx = <span class="hljs-literal">null</span>
@detectEnd j,
<span class="hljs-function"><span class="hljs-params">(token)</span> -&gt;</span> token[<span class="hljs-number">0</span>] <span class="hljs-keyword">is</span> <span class="hljs-string">'TERMINATOR'</span>
(token, i) -&gt; nextTerminatorIdx = i
returnOnNegativeLevel: <span class="hljs-literal">yes</span>
<span class="hljs-keyword">return</span> <span class="hljs-literal">no</span> <span class="hljs-keyword">unless</span> nextTerminatorIdx?
@looksObjectish nextTerminatorIdx + <span class="hljs-number">1</span></pre></div></div>
</li>
@@ -503,13 +516,15 @@ class declaration or if-conditionals)</p>
<div class="pilwrap ">
<a class="pilcrow" href="#section-18">&#182;</a>
</div>
<p>Dont end an implicit call on next indent if any of these are in an argument</p>
<p>Dont end an implicit call/object on next indent if any of these are in an argument/value</p>
</div>
<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>]
<div class="content"><div class='highlight'><pre> <span class="hljs-keyword">if</span> (
(inImplicitCall() <span class="hljs-keyword">or</span> inImplicitObject()) <span class="hljs-keyword">and</span> tag <span class="hljs-keyword">in</span> CONTROL_IN_IMPLICIT <span class="hljs-keyword">or</span>
inImplicitObject() <span class="hljs-keyword">and</span> prevTag <span class="hljs-keyword">is</span> <span class="hljs-string">':'</span> <span class="hljs-keyword">and</span> tag <span class="hljs-keyword">is</span> <span class="hljs-string">'FOR'</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>
@@ -531,8 +546,12 @@ class declaration or if-conditionals)</p>
</div>
<div class="content"><div class='highlight'><pre> <span class="hljs-keyword">if</span> prevTag <span class="hljs-keyword">not</span> <span class="hljs-keyword">in</span> [<span class="hljs-string">'=&gt;'</span>, <span class="hljs-string">'-&gt;'</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">'TRY'</span>, <span class="hljs-string">'ELSE'</span>, <span class="hljs-string">'='</span>]
endImplicitCall() <span class="hljs-keyword">while</span> inImplicitCall()
<div class="content"><div class='highlight'><pre> <span class="hljs-keyword">if</span> prevTag <span class="hljs-keyword">not</span> <span class="hljs-keyword">in</span> [<span class="hljs-string">'=&gt;'</span>, <span class="hljs-string">'-&gt;'</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">'ELSE'</span>, <span class="hljs-string">'='</span>]
<span class="hljs-keyword">while</span> inImplicitCall() <span class="hljs-keyword">or</span> inImplicitObject() <span class="hljs-keyword">and</span> prevTag <span class="hljs-keyword">isnt</span> <span class="hljs-string">':'</span>
<span class="hljs-keyword">if</span> inImplicitCall()
endImplicitCall()
<span class="hljs-keyword">else</span>
endImplicitObject()
stack.pop() <span class="hljs-keyword">if</span> inImplicitControl()
stack.push [tag, i]
<span class="hljs-keyword">return</span> forward(<span class="hljs-number">1</span>)</pre></div></div>
@@ -595,7 +614,7 @@ f a, f() b, f? c, h[0] d etc.</p>
tag <span class="hljs-keyword">is</span> <span class="hljs-string">'?'</span> <span class="hljs-keyword">and</span> i &gt; <span class="hljs-number">0</span> <span class="hljs-keyword">and</span> <span class="hljs-keyword">not</span> tokens[i - <span class="hljs-number">1</span>].spaced) <span class="hljs-keyword">and</span>
(nextTag <span class="hljs-keyword">in</span> IMPLICIT_CALL <span class="hljs-keyword">or</span>
nextTag <span class="hljs-keyword">in</span> IMPLICIT_UNSPACED_CALL <span class="hljs-keyword">and</span>
<span class="hljs-keyword">not</span> tokens[i + <span class="hljs-number">1</span>]?.spaced <span class="hljs-keyword">and</span> <span class="hljs-keyword">not</span> tokens[i + <span class="hljs-number">1</span>]?.newLine)
<span class="hljs-keyword">not</span> nextToken.spaced <span class="hljs-keyword">and</span> <span class="hljs-keyword">not</span> nextToken.newLine)
tag = token[<span class="hljs-number">0</span>] = <span class="hljs-string">'FUNC_EXIST'</span> <span class="hljs-keyword">if</span> tag <span class="hljs-keyword">is</span> <span class="hljs-string">'?'</span>
startImplicitCall i + <span class="hljs-number">1</span>
<span class="hljs-keyword">return</span> forward(<span class="hljs-number">2</span>)</pre></div></div>
@@ -613,11 +632,6 @@ f a, f() b, f? c, h[0] d etc.</p>
<pre><code>f
a: b
c: d
</code></pre><p>and</p>
<pre><code>f
<span class="hljs-number">1</span>
a: b
b: c
</code></pre><p>Dont accept implicit calls of this type, when on the same line
as the control structures below as that may misinterpret constructs like:</p>
<pre><code><span class="hljs-keyword">if</span> f
@@ -670,7 +684,9 @@ that creates grammatical ambiguities.</p>
<span class="hljs-keyword">when</span> @tag(i - <span class="hljs-number">1</span>) <span class="hljs-keyword">in</span> EXPRESSION_END <span class="hljs-keyword">then</span> start[<span class="hljs-number">1</span>]
<span class="hljs-keyword">when</span> @tag(i - <span class="hljs-number">2</span>) <span class="hljs-keyword">is</span> <span class="hljs-string">'@'</span> <span class="hljs-keyword">then</span> i - <span class="hljs-number">2</span>
<span class="hljs-keyword">else</span> i - <span class="hljs-number">1</span>
s -= <span class="hljs-number">2</span> <span class="hljs-keyword">while</span> @tag(s - <span class="hljs-number">2</span>) <span class="hljs-keyword">is</span> <span class="hljs-string">'HERECOMMENT'</span></pre></div></div>
s -= <span class="hljs-number">2</span> <span class="hljs-keyword">while</span> @tag(s - <span class="hljs-number">2</span>) <span class="hljs-keyword">is</span> <span class="hljs-string">'HERECOMMENT'</span>
startsLine = s <span class="hljs-keyword">is</span> <span class="hljs-number">0</span> <span class="hljs-keyword">or</span> @tag(s - <span class="hljs-number">1</span>) <span class="hljs-keyword">in</span> LINEBREAKS <span class="hljs-keyword">or</span> tokens[s - <span class="hljs-number">1</span>].newLine</pre></div></div>
</li>
@@ -681,23 +697,6 @@ that creates grammatical ambiguities.</p>
<div class="pilwrap ">
<a class="pilcrow" href="#section-26">&#182;</a>
</div>
<p>Mark if the value is a for loop</p>
</div>
<div class="content"><div class='highlight'><pre> @insideForDeclaration = nextTag <span class="hljs-keyword">is</span> <span class="hljs-string">'FOR'</span>
startsLine = s <span class="hljs-keyword">is</span> <span class="hljs-number">0</span> <span class="hljs-keyword">or</span> @tag(s - <span class="hljs-number">1</span>) <span class="hljs-keyword">in</span> LINEBREAKS <span class="hljs-keyword">or</span> tokens[s - <span class="hljs-number">1</span>].newLine</pre></div></div>
</li>
<li id="section-27">
<div class="annotation">
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</div>
<p>Are we just continuing an already declared object?</p>
</div>
@@ -714,11 +713,11 @@ that creates grammatical ambiguities.</p>
</li>
<li id="section-28">
<li id="section-27">
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</div>
<p>End implicit calls when chaining method calls
like e.g.:</p>
@@ -734,8 +733,22 @@ 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-28">
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</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">when</span> isImplicitObject stackItem
stackItem[<span class="hljs-number">2</span>].sameLine = <span class="hljs-literal">no</span>
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
@@ -772,8 +785,9 @@ return a: 1, b: 2 unless true</p>
</div>
<div class="content"><div class='highlight'><pre> <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span> inImplicitObject() <span class="hljs-keyword">and</span> <span class="hljs-keyword">not</span> @insideForDeclaration <span class="hljs-keyword">and</span> sameLine <span class="hljs-keyword">and</span>
tag <span class="hljs-keyword">isnt</span> <span class="hljs-string">'TERMINATOR'</span> <span class="hljs-keyword">and</span> prevTag <span class="hljs-keyword">isnt</span> <span class="hljs-string">':'</span>
<div class="content"><div class='highlight'><pre> <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span> inImplicitObject() <span class="hljs-keyword">and</span> sameLine <span class="hljs-keyword">and</span>
tag <span class="hljs-keyword">isnt</span> <span class="hljs-string">'TERMINATOR'</span> <span class="hljs-keyword">and</span> prevTag <span class="hljs-keyword">isnt</span> <span class="hljs-string">':'</span> <span class="hljs-keyword">and</span>
<span class="hljs-keyword">not</span> (tag <span class="hljs-keyword">in</span> [<span class="hljs-string">'POST_IF'</span>, <span class="hljs-string">'FOR'</span>, <span class="hljs-string">'WHILE'</span>, <span class="hljs-string">'UNTIL'</span>] <span class="hljs-keyword">and</span> startsLine <span class="hljs-keyword">and</span> implicitObjectContinues(i + <span class="hljs-number">1</span>))
endImplicitObject()</pre></div></div>
</li>
@@ -820,7 +834,6 @@ e = <span class="hljs-number">2</span>
</div>
<div class="content"><div class='highlight'><pre> <span class="hljs-keyword">if</span> tag <span class="hljs-keyword">is</span> <span class="hljs-string">','</span> <span class="hljs-keyword">and</span> <span class="hljs-keyword">not</span> @looksObjectish(i + <span class="hljs-number">1</span>) <span class="hljs-keyword">and</span> inImplicitObject() <span class="hljs-keyword">and</span>
<span class="hljs-keyword">not</span> @insideForDeclaration <span class="hljs-keyword">and</span>
(nextTag <span class="hljs-keyword">isnt</span> <span class="hljs-string">'TERMINATOR'</span> <span class="hljs-keyword">or</span> <span class="hljs-keyword">not</span> @looksObjectish(i + <span class="hljs-number">2</span>))</pre></div></div>
</li>
@@ -854,6 +867,27 @@ array further up the stack, so give it a chance.</p>
<div class="pilwrap ">
<a class="pilcrow" href="#section-34">&#182;</a>
</div>
<p>Make sure only strings and wrapped expressions are used in CSX attributes</p>
</div>
<div class="content"><div class='highlight'><pre> enforceValidCSXAttributes: <span class="hljs-function">-&gt;</span>
@scanTokens (token, i, tokens) -&gt;
<span class="hljs-keyword">if</span> token.csxColon
next = tokens[i + <span class="hljs-number">1</span>]
<span class="hljs-keyword">if</span> next[<span class="hljs-number">0</span>] <span class="hljs-keyword">not</span> <span class="hljs-keyword">in</span> [<span class="hljs-string">'STRING_START'</span>, <span class="hljs-string">'STRING'</span>, <span class="hljs-string">'('</span>]
throwSyntaxError <span class="hljs-string">'expected wrapped or quoted CSX attribute'</span>, next[<span class="hljs-number">2</span>]
<span class="hljs-keyword">return</span> <span class="hljs-number">1</span></pre></div></div>
</li>
<li id="section-35">
<div class="annotation">
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</div>
<p>Add location data to all tokens generated by the rewriter.</p>
</div>
@@ -878,11 +912,11 @@ array further up the stack, so give it a chance.</p>
</li>
<li id="section-35">
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<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 +940,11 @@ location corresponding to the last “real” token under the node.</p>
</li>
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</div>
<p>Because our grammar is LALR(1), it cant handle some single-line
expressions that lack ending delimiters. The <strong>Rewriter</strong> adds the implicit
@@ -928,7 +962,8 @@ 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
@@ -946,6 +981,10 @@ blocks are added.</p>
<span class="hljs-keyword">for</span> j <span class="hljs-keyword">in</span> [<span class="hljs-number">1.</span><span class="hljs-number">.2</span>] <span class="hljs-keyword">when</span> @tag(i + j) <span class="hljs-keyword">in</span> [<span class="hljs-string">'OUTDENT'</span>, <span class="hljs-string">'TERMINATOR'</span>, <span class="hljs-string">'FINALLY'</span>]
tokens.splice i + j, <span class="hljs-number">0</span>, @indentation()...
<span class="hljs-keyword">return</span> <span class="hljs-number">2</span> + j
<span class="hljs-keyword">if</span> tag <span class="hljs-keyword">in</span> [<span class="hljs-string">'-&gt;'</span>, <span class="hljs-string">'=&gt;'</span>] <span class="hljs-keyword">and</span> (@tag(i + <span class="hljs-number">1</span>) <span class="hljs-keyword">is</span> <span class="hljs-string">','</span> <span class="hljs-keyword">or</span> @tag(i + <span class="hljs-number">1</span>) <span class="hljs-keyword">is</span> <span class="hljs-string">'.'</span> <span class="hljs-keyword">and</span> token.newLine)
[indent, outdent] = @indentation tokens[i]
tokens.splice i + <span class="hljs-number">1</span>, <span class="hljs-number">0</span>, indent, outdent
<span class="hljs-keyword">return</span> <span class="hljs-number">1</span>
<span class="hljs-keyword">if</span> tag <span class="hljs-keyword">in</span> SINGLE_LINERS <span class="hljs-keyword">and</span> @tag(i + <span class="hljs-number">1</span>) <span class="hljs-keyword">isnt</span> <span class="hljs-string">'INDENT'</span> <span class="hljs-keyword">and</span>
<span class="hljs-keyword">not</span> (tag <span class="hljs-keyword">is</span> <span class="hljs-string">'ELSE'</span> <span class="hljs-keyword">and</span> @tag(i + <span class="hljs-number">1</span>) <span class="hljs-keyword">is</span> <span class="hljs-string">'IF'</span>)
starter = tag
@@ -960,11 +999,11 @@ blocks are added.</p>
</li>
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<li id="section-38">
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<p>Tag postfix conditionals as such, so that we can parse them with a
different precedence.</p>
@@ -993,11 +1032,11 @@ different precedence.</p>
</li>
<li id="section-38">
<li id="section-39">
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<p>Generate the indentation tokens, based on another token on the same line.</p>
@@ -1018,11 +1057,11 @@ different precedence.</p>
</li>
<li id="section-39">
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<p>Look up a tag by token index.</p>
@@ -1033,26 +1072,14 @@ different precedence.</p>
</li>
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<h2 id="constants">Constants</h2>
</div>
</li>
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<h2 id="constants">Constants</h2>
</div>
</li>
@@ -1064,6 +1091,18 @@ different precedence.</p>
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</div>
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<p>List of the token pairs that must be balanced.</p>
</div>
@@ -1083,11 +1122,11 @@ different precedence.</p>
</li>
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<p>The inverse mappings of <code>BALANCED_PAIRS</code> were trying to fix up, so we can
look things up from either end.</p>
@@ -1099,11 +1138,11 @@ look things up from either end.</p>
</li>
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<p>The tokens that signal the start/end of a balanced pair.</p>
@@ -1119,11 +1158,11 @@ EXPRESSION_END = []
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<p>Tokens that indicate the close of a clause of an expression.</p>
@@ -1134,11 +1173,11 @@ EXPRESSION_END = []
</li>
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<p>Tokens that, if followed by an <code>IMPLICIT_CALL</code>, indicate a function invocation.</p>
@@ -1149,18 +1188,18 @@ EXPRESSION_END = []
</li>
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<p>If preceded by an <code>IMPLICIT_FUNC</code>, indicates a function invocation.</p>
</div>
<div class="content"><div class='highlight'><pre>IMPLICIT_CALL = [
<span class="hljs-string">'IDENTIFIER'</span>, <span class="hljs-string">'PROPERTY'</span>, <span class="hljs-string">'NUMBER'</span>, <span class="hljs-string">'INFINITY'</span>, <span class="hljs-string">'NAN'</span>
<span class="hljs-string">'IDENTIFIER'</span>, <span class="hljs-string">'CSX_TAG'</span>, <span class="hljs-string">'PROPERTY'</span>, <span class="hljs-string">'NUMBER'</span>, <span class="hljs-string">'INFINITY'</span>, <span class="hljs-string">'NAN'</span>
<span class="hljs-string">'STRING'</span>, <span class="hljs-string">'STRING_START'</span>, <span class="hljs-string">'REGEX'</span>, <span class="hljs-string">'REGEX_START'</span>, <span class="hljs-string">'JS'</span>
<span class="hljs-string">'NEW'</span>, <span class="hljs-string">'PARAM_START'</span>, <span class="hljs-string">'CLASS'</span>, <span class="hljs-string">'IF'</span>, <span class="hljs-string">'TRY'</span>, <span class="hljs-string">'SWITCH'</span>, <span class="hljs-string">'THIS'</span>
<span class="hljs-string">'UNDEFINED'</span>, <span class="hljs-string">'NULL'</span>, <span class="hljs-string">'BOOL'</span>
@@ -1173,11 +1212,11 @@ IMPLICIT_UNSPACED_CALL = [<span class="hljs-string">'+'</span>, <span class="hlj
</li>
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<p>Tokens that always mark the end of an implicit call for single-liners.</p>
@@ -1189,11 +1228,11 @@ IMPLICIT_UNSPACED_CALL = [<span class="hljs-string">'+'</span>, <span class="hlj
</li>
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<p>Single-line flavors of block expressions that have unclosed endings.
The grammar cant disambiguate them, so we insert the implicit indentation.</p>
@@ -1206,11 +1245,11 @@ SINGLE_CLOSERS = [<span class="hljs-string">'TERMINATOR'</span>, <span class="
</li>
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<p>Tokens that end a line.</p>
@@ -1221,11 +1260,11 @@ SINGLE_CLOSERS = [<span class="hljs-string">'TERMINATOR'</span>, <span class="
</li>
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<p>Tokens that close open calls when they follow a newline.</p>
@@ -1235,6 +1274,21 @@ SINGLE_CLOSERS = [<span class="hljs-string">'TERMINATOR'</span>, <span class="
</li>
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<p>Tokens that prevent a subsequent indent from ending implicit calls/objects</p>
</div>
<div class="content"><div class='highlight'><pre>CONTROL_IN_IMPLICIT = [<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>]</pre></div></div>
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@@ -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>

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

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@@ -0,0 +1,18 @@
# Your browser must support async/await and speech synthesis
# to run this example.
sleep = (ms) ->
new Promise (resolve) ->
window.setTimeout resolve, ms
say = (text) ->
window.speechSynthesis.cancel()
window.speechSynthesis.speak new SpeechSynthesisUtterance text
countdown = (seconds) ->
for i in [seconds..1]
say i
await sleep 1000 # wait one second
say "Blastoff!"
countdown 3

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@@ -0,0 +1,2 @@
self = this
f = -> yield self

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

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

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@@ -0,0 +1,3 @@
f = (a = 1) -> a
f(null) # Returns 1 in CoffeeScript 1.x, null in CoffeeScript 2

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@@ -0,0 +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 = ->
extend B, A
B.prototype.foo = -> A::foo.apply this, arguments

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@@ -0,0 +1,3 @@
class A
class B extends A
foo: -> super arguments...

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@@ -0,0 +1,2 @@
class B extends A
foo: -> super arguments...

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@@ -0,0 +1,2 @@
class B extends A
foo: -> super()

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@@ -0,0 +1 @@
code = 2 * 617 # The code is 1234

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@@ -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()

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

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

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@@ -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

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@@ -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>

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@@ -1,5 +1,5 @@
import 'local-file.coffee'
import 'coffee-script'
import 'coffeescript'
import _ from 'underscore'
import * as underscore from 'underscore'

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

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@@ -1,3 +1,3 @@
$('.account').attr class: 'active'
$('.account').prop class: 'active'
log object.class

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@@ -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 ', '}
"""

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@@ -0,0 +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 ', '

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@@ -0,0 +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:
- [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)

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@@ -0,0 +1,9 @@
## Async Functions
ES2017s [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)
```

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@@ -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, youll 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 CoffeeScripts 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.

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@@ -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 scopes `this`, or with the inner function bound to the outer scope via `.bind` (hence the name “bound function”). In CoffeeScript 2, `=>` compiles to [ES2015s `=>`](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)')
```

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@@ -0,0 +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.

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@@ -0,0 +1,14 @@
### Bound generator functions
Bound generator functions, a.k.a. generator arrow functions, [arent 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')
```

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@@ -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 cant 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 dont allow bound (fat arrow) methods. The CoffeeScript compiler goes through some contortions to preserve support for them, but one thing that cant be accomodated 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 cant 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 cant 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`
```

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@@ -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')
```

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@@ -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.

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@@ -0,0 +1,7 @@
### Literate CoffeeScript parsing
CoffeeScript 2s 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 codes “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.

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@@ -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 doesnt 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')
```

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@@ -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 [dont expect any fanciness built-in](v<%= majorVersion %>/annotated-source/cake.html). If you need dependencies, or async callbacks, its 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 [dont expect any fanciness built-in](/v<%= majorVersion %>/annotated-source/cake.html). If you need dependencies, or async callbacks, its best to put them in your code itself — not the cake task.

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

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@@ -1,4 +1,52 @@
## Change Log
## Changelog
```
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 Babels `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')
@@ -7,6 +55,24 @@ 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 wont interpret it as the `default` keyword.
* Fixed a bug where invalid octal escape sequences werent throwing errors in the compiler.
```
releaseHeader('2017-02-21', '2.0.0-alpha1', '1.12.4')
```
* Initial alpha release of CoffeeScript 2. The CoffeeScript compiler now outputs ES2015+ syntax whenever possible. See [breaking changes](#breaking-changes).
* Classes are output using ES2015 `class` and `extends` keywords.
* Added support for `async`/`await`.
* Bound (arrow) functions now output as `=>` functions.
* Function parameters with default values now use ES2015 default values syntax.
* Splat function parameters now use ES2015 spread syntax.
* Computed properties now use ES2015 syntax.
* Interpolated strings (template literals) now use ES2015 backtick syntax.
* Improved support for recognizing Markdown in Literate CoffeeScript files.
* Mixing tabs and spaces in indentation is now disallowed.
* Browser compiler is now minified using the Google Closure Compiler (JavaScript version).
* Node 7+ required for CoffeeScript 2.
```
releaseHeader('2017-02-18', '1.12.4', '1.12.3')
```
@@ -31,7 +97,7 @@ 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')
@@ -48,7 +114,7 @@ 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 couldnt 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.
@@ -162,7 +228,7 @@ releaseHeader('2014-08-26', '1.8.0', '1.7.1')
* Fixed a slight formatting error in CoffeeScripts source map-patched stack traces.
* The `%%` operator now coerces its right operand only once.
* It is now possible to require CoffeeScript files from Cakefiles without having to register the compiler first.
* The CoffeeScript REPL is now exported and can be required using `require 'coffee-script/repl'`.
* The CoffeeScript REPL is now exported and can be required using `require 'coffeescript/repl'`.
* Fixes for the REPL in Node 0.11.
```
@@ -175,14 +241,9 @@ releaseHeader('2014-01-29', '1.7.1', '1.7.0')
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 'coffee-script/register'` or `CoffeeScript.register()`. Also for configuration such as Mochas, use **coffee-script/register**.
* 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 Mochas, 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.
@@ -213,7 +274,7 @@ 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 isnt 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.
@@ -275,7 +336,7 @@ releaseHeader('2011-11-08', '1.1.3', '1.1.2')
* Ahh, whitespace. CoffeeScripts compiled JS now tries to space things out and keep it readable, as you can see in the examples on this page.
* You can now call `super` in class level methods in class bodies, and bound class methods now preserve their correct context.
* JavaScript has always supported octal numbers `010 is 8`, and hexadecimal numbers `0xf is 15`, but CoffeeScript now also supports binary numbers: `0b10 is 2`.
* The CoffeeScript module has been nested under a subdirectory to make it easier to `require` individual components separately, without having to use **npm**. For example, after adding the CoffeeScript folder to your path: `require('coffee-script/lexer')`
* The CoffeeScript module has been nested under a subdirectory to make it easier to `require` individual components separately, without having to use **npm**. For example, after adding the CoffeeScript folder to your path: `require('coffeescript/lexer')`
* Theres a new “link” feature in Try CoffeeScript on this webpage. Use it to get a shareable permalink for your example script.
* The `coffee --watch` feature now only works on Node.js 0.6.0 and higher, but now also works properly on Windows.
* Lots of small bug fixes from **[@michaelficarra](https://github.com/michaelficarra)**, **[@geraldalewis](https://github.com/geraldalewis)**, **[@satyr](https://github.com/satyr)**, and **[@trevorburnham](https://github.com/trevorburnham)**.
@@ -320,7 +381,7 @@ 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`.
@@ -394,13 +455,13 @@ Trailing commas are now allowed, a-la Python. Static properties may be assigned
releaseHeader('2010-03-23', '0.5.6', '0.5.5')
```
Interpolation can now be used within regular expressions and heredocs, as well as strings. Added the `<-` bind operator. Allowing assignment to half-expressions instead of special `||=`-style operators. The arguments object is no longer automatically converted into an array. After requiring `coffee-script`, Node.js can now directly load `.coffee` files, thanks to **registerExtension**. Multiple splats can now be used in function calls, arrays, and pattern matching.
Interpolation can now be used within regular expressions and heredocs, as well as strings. Added the `<-` bind operator. Allowing assignment to half-expressions instead of special `||=`-style operators. The arguments object is no longer automatically converted into an array. After requiring `coffeescript`, Node.js can now directly load `.coffee` files, thanks to **registerExtension**. Multiple splats can now be used in function calls, arrays, and pattern matching.
```
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 youd 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 youd like to print the result.
```
releaseHeader('2010-03-03', '0.5.4', '0.5.3')
@@ -419,7 +480,7 @@ 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/coffee-script.js`. Itll 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`. Itll 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')
@@ -496,7 +557,7 @@ 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 OConnor-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 OConnor-Davis](https://github.com/liamoc) for whitespace and expression help.
```
releaseHeader('2009-12-27', '0.1.6', '0.1.5')
@@ -508,13 +569,13 @@ Bugfix for running `coffee --interactive` and `--run` from outside of the Coffee
releaseHeader('2009-12-26', '0.1.5', '0.1.4')
```
Array slice literals and array comprehensions can now both take Ruby-style ranges to specify the start and end. JavaScript variable declaration is now pushed up to the top of the scope, making all assignment statements into expressions. You can use `\` to escape newlines. The `coffee-script` command is now called `coffee`.
Array slice literals and array comprehensions can now both take Ruby-style ranges to specify the start and end. JavaScript variable declaration is now pushed up to the top of the scope, making all assignment statements into expressions. You can use `\` to escape newlines. The `coffeescript` command is now called `coffee`.
```
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')

View File

@@ -1,5 +1,3 @@
## Web Chat (IRC)
Quick help and advice can usually be found in the CoffeeScript IRC room. Join `#coffeescript` on `irc.freenode.net`, or click the button below to open a webchat session on this page.
<button id="open_webchat">click to open #coffeescript</button>
Quick help and advice can often be found in the CoffeeScript IRC room `#coffeescript` on `irc.freenode.net`, which you can [join via your web browser](http://webchat.freenode.net/?channels=coffeescript).

View File

@@ -1,20 +1,15 @@
## Classes, Inheritance, and Super
## Classes
JavaScripts prototypal inheritance has always been a bit of a brain-bender, with a whole family tree of libraries that provide a cleaner syntax for classical inheritance on top of JavaScripts prototypes: [Base2](http://code.google.com/p/base2/), [Prototype.js](http://prototypejs.org/), [JS.Class](http://jsclass.jcoglan.com/), etc. The libraries provide syntactic sugar, but the built-in inheritance would be completely usable if it werent for a couple of small exceptions: its awkward to call **super** (the prototype objects implementation of the current function), and its awkward to correctly set the prototype chain.
Instead of repetitively attaching functions to a prototype, CoffeeScript provides a basic `class` structure that allows you to name your class, set the superclass, assign prototypal properties, and define the constructor, in a single assignable expression.
Constructor functions are named, to better support helpful stack traces. In the first class in the example below, `this.constructor.name is "Animal"`.
CoffeeScript 1 provided the `class` and `extends` keywords as syntactic sugar for working with prototypal functions. With ES2015, JavaScript has adopted those keywords; so CoffeeScript 2 compiles its `class` and `extends` keywords to ES2015 classes.
```
codeFor('classes', true)
```
If structuring your prototypes classically isnt your cup of tea, CoffeeScript provides a couple of lower-level conveniences. The `extends` operator helps with proper prototype setup, and can be used to create an inheritance chain between any pair of constructor functions; `::` gives you quick access to an objects prototype; and `super()` is converted into a call against the immediate ancestors method of the same name.
Static methods can be defined using `@` before the method name:
```
codeFor('prototypes', '"one_two".dasherize()')
codeFor('static', 'Teenager.say("Are we there yet?")')
```
Finally, class definitions are blocks of executable code, which make for interesting metaprogramming possibilities. Because in the context of a class definition, `this` is the class object itself (the constructor function), you can assign static properties by using
`@property: value`, and call functions defined in parent classes: `@attr 'title', type: 'text'`
Finally, class definitions are blocks of executable code, which make for interesting metaprogramming possibilities. In the context of a class definition, `this` is the class object itself; therefore, you can assign static properties by using `@property: value`.

View File

@@ -0,0 +1,17 @@
## CoffeeScript 2
### Whats New In CoffeeScript 2?
The biggest change in CoffeeScript 2 is that now the CoffeeScript compiler produces modern, ES2015+ JavaScript. A CoffeeScript `=>` becomes an ES `=>`, a CoffeeScript `class` becomes an ES `class` and so on. With the exception of modules (`import` and `export` statements), all the ES2015+ features that CoffeeScript supports can run natively in Node 7.6+, meaning that Node can run CoffeeScripts output without any further processing required. You can [run the tests in your browser](http://coffeescript.org/v<%= majorVersion %>/test.html) to see if your browser can do the same; Chrome has supported all features since version 55.
Support for ES2015+ syntax is important to ensure compatibility with frameworks that assume ES2015. Now that CoffeeScript compiles classes to the ES `class` keyword, its possible to `extend` an ES class; that wasnt 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.
Many ES2015+ features have been backported to CoffeeScript 1.11 and 1.12, including [modules](#modules), [`for…of`](#generator-iteration), and [tagged template literals](#tagged-template-literals). Major new features unique to CoffeeScript 2 are support for ES2017s [async functions](#async-functions) and for [JSX](#jsx). More details are in the [changelog](#changelog).
There are very few [breaking changes from CoffeeScript 1.x to 2](#breaking-changes); we hope the upgrade process is smooth for most projects.
### Why CoffeeScript When Theres ES2015?
CoffeeScript introduced many new features to the JavaScript world, such as [`=>`](#fat-arrow) and [destructuring](#destructuring) and [classes](#classes). We are happy that ECMA has seen their utility and adopted them into ECMAScript.
CoffeeScripts intent, however, was never to be a superset of JavaScript. One of the guiding principles of CoffeeScript has been _simplicity:_ not just removing JavaScripts “bad parts,” but providing an elegant, concise syntax that eschews unnecessary punctuation whenever possible, to make code easier to read and reason about. This benefit of CoffeeScript remains, even in an ES2015 world.

View File

@@ -0,0 +1,13 @@
## 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.
```
codeFor('comment')
```
Sometimes youd 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')
```

View File

@@ -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')

View File

@@ -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. Theres 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. Theres 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')

View File

@@ -0,0 +1,16 @@
## Contributing
Contributions are welcome! Feel free to fork [the repo](http://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](http://github.com/jashkenas/coffeescript/issues) to see if the feature youre looking for has already been discussed. As a general rule, we dont support ECMAScript syntax for features that arent 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 didnt break anything, or future changes wont 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, its entirely possible that you have a great addition, but it doesnt 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).

View File

@@ -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.

View File

@@ -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.

View File

@@ -1,17 +1,37 @@
## The Existential Operator
Its 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. CoffeeScripts existential operator `?` returns true unless a variable is **null** or **undefined**, which makes it analogous to Rubys `nil?`
Its 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). CoffeeScripts existential operator `?` returns true unless a variable is `null` or `undefined` or undeclared, which makes it analogous to Rubys `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 youll 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 youll 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 Rubys [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`&emsp; | 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` |

View File

@@ -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)

View File

@@ -1,4 +1,4 @@
## Bound Functions, Generator Functions
## 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 youre 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.
@@ -10,18 +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 functions also support [ES2015 generator functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/function*) through the `yield` keyword. Theres 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 doesnt yield.
You can iterate over a generator function using `for…from`.
```
codeFor('generator_iteration', 'getFibonacciNumbers(10)')
```
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 `=>`.

View File

@@ -6,7 +6,7 @@ Functions are defined by an optional list of parameters in parentheses, an arrow
codeFor('functions', 'cube(5)')
```
Functions may also have default values for arguments, which will be used if the incoming argument is missing (`null` or `undefined`).
Functions may also have default values for arguments, which will be used if the incoming argument is missing (`undefined`).
```
codeFor('default_args', 'fill("cup")')

View File

@@ -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 doesnt yield.
<div id="generator-iteration" class="bookmark"></div>
You can iterate over a generator function using `for…from`.
```
codeFor('generator_iteration', 'getFibonacciNumbers(10)')
```

View File

@@ -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/coffee-script.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 coffee-script
npm install --global coffeescript@next
```
This will make the `coffee` and `cake` commands available globally.
When you need CoffeeScript as a dependency of a project, within that projects folder you can install it locally:
```bash
npm install --save coffee-script
npm install --save coffeescript@next
```
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.

View File

@@ -1,13 +1,9 @@
**CoffeeScript is a little language that compiles into JavaScript.** Underneath that awkward Java-esque patina, JavaScript has always had a gorgeous heart. CoffeeScript is an attempt to expose the good parts of JavaScript in a simple way.
The golden rule of CoffeeScript is: _“Its 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.
The golden rule of CoffeeScript is: _“Its 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.
The CoffeeScript compiler goes to great lengths to generate output JavaScript that runs in every JavaScript runtime, but there are exceptions. Use [generator functions](#generator-functions), [`for…from`](#generator-iteration), or [tagged template literals](#tagged-template-literals) only if you know that your [target runtimes can support them](http://kangax.github.io/compat-table/es6/). If you use [modules](#modules), you will need to [use an additional tool to resolve them](#modules-note).
**Latest Version:** [<%= fullVersion %>](http://github.com/jashkenas/coffeescript/tarball/<%= fullVersion %>)
**Latest Version:** [<%= fullVersion %>](https://github.com/jashkenas/coffeescript/tarball/<%= fullVersion %>)
```bash
npm install -g coffee-script
npm install -g coffeescript@next
```
**CoffeeScript 2 is coming!** It adds support for [ES2015 classes](/v2/#classes), [`async`/`await`](/v2/#fat-arrow), and generates JavaScript using ES2015+ syntax. <a href="/v2/">Learn more</a>.</p>

View File

@@ -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; regalar `.coffee` will do.

View File

@@ -2,7 +2,7 @@
_This reference is structured so that it can be read from top to bottom, if you like. Later sections use ideas and syntax previously introduced. Familiarity with JavaScript is assumed. In all of the following examples, the source CoffeeScript is provided on the left, and the direct compilation into JavaScript is on the right._
_Many of the examples can be run (where it makes sense) by pressing the **run** button on the right, and can be loaded into the “Try CoffeeScript” console by pressing the **load** button on the left._
_Many of the examples can be run (where it makes sense) by pressing the_ <small>▶</small> _button on the right. The CoffeeScript on the left is editable, and the JavaScript will update as you edit._
First, the basics: CoffeeScript uses significant whitespace to delimit blocks of code. You dont need to use semicolons `;` to terminate expressions, ending the line will do just as well (although semicolons can still be used to fit multiple expressions onto a single line). Instead of using curly braces `{ }` to surround blocks of code in [functions](#literals), [if-statements](#conditionals), [switch](#switch), and [try/catch](#try), use indentation.

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@@ -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 its 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 its 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 Rubys scope for local variables. Because you dont have direct access to the `var` keyword, its impossible to shadow an outer variable on purpose, you may only refer to it. So be careful that youre not reusing the name of an external variable accidentally, if youre writing a deeply nested function.
Because you dont have direct access to the `var` keyword, its impossible to shadow an outer variable on purpose, you may only refer to it. So be careful that youre not reusing the name of an external variable accidentally, if youre 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 youd 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 youre 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 youd 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 youre 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 ES2015s `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.

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@@ -1,7 +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 (Markdowns 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 (Markdowns 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).
Im fairly excited about this direction for the language, and am looking forward to writing (and more importantly, reading) more programs in this style. More information about Literate CoffeeScript, including an [example program](https://github.com/jashkenas/journo), are [available in this blog post](http://ashkenas.com/literate-coffeescript).
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 dont 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.

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@@ -1,12 +1,12 @@
## Loops and Comprehensions
Most of the loops youll 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 youll 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, its common to insert a closure wrapper in order to ensure that loop variables are closed over, and all the generated functions dont just share the final values. CoffeeScript provides the `do` keyword, which immediately invokes a passed function, forwarding any arguments.

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@@ -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.

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@@ -6,7 +6,7 @@ You can use `not` as an alias for `!`.
For logic, `and` compiles to `&&`, and `or` into `||`.
Instead of a newline or semicolon, `then` can be used to separate conditions from expressions, in **while**, **if**/**else**, and **switch**/**when** statements.
Instead of a newline or semicolon, `then` can be used to separate conditions from expressions, in `while`, `if`/`else`, and `switch`/`when` statements.
As in [YAML](http://yaml.org/), `on` and `yes` are the same as boolean `true`, while `off` and `no` are boolean `false`.
@@ -16,7 +16,9 @@ As a shortcut for `this.property`, you can use `@property`.
You can use `in` to test for array presence, and `of` to test for JavaScript object-key presence.
To simplify math expressions, `**` can be used for exponentiation and `//` performs integer division. `%` works just like in JavaScript, while `%%` provides [“dividend dependent modulo”](http://en.wikipedia.org/wiki/Modulo_operation):
In a `for` loop, `from` compiles to the [ES2015 `of`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/for...of). (Yes, its unfortunate; the CoffeeScript `of` predates the ES2015 `of`.)
To simplify math expressions, `**` can be used for exponentiation and `//` performs integer division. `%` works just like in JavaScript, while `%%` provides [“dividend dependent modulo”](https://en.wikipedia.org/wiki/Modulo_operation):
```
codeFor('modulo')
@@ -34,8 +36,9 @@ All together now:
| `true`, `yes`, `on` | `true` |
| `false`, `no`, `off`&emsp; | `false` |
| `@`, `this` | `this` |
| `of` | `in` |
| `in` | _no JS equivalent_ |
| `a in b` | `[].indexOf.call(b, a) >= 0` |
| `a of b` | `a in b` |
| `for a from b` | `for (a of b)` |
| `a ** b` | `Math.pow(a, b)` |
| `a // b` | `Math.floor(a / b)` |
| `a %% b` | `(a % b + b) % b` |

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@@ -1,6 +1,6 @@
## Overview
_CoffeeScript on the left, compiled JavaScript output on the right._
_CoffeeScript on the <span class="hidden-md-up">top</span><span class="hidden-sm-down">left</span>, compiled JavaScript output on the <span class="hidden-md-up">bottom</span><span class="hidden-sm-down">right</span>. The CoffeeScript is editable!_
```
codeFor('overview', 'cubes', false)

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@@ -0,0 +1,7 @@
## Prototypal Inheritance
In addition to supporting ES2015 classes, CoffeeScript provides a shortcut for working with prototypes. The `::` operator gives you quick access to an objects prototype:
```
codeFor('prototypes', '"one_two".dasherize()')
```

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@@ -1,23 +1,15 @@
## Resources
* [Source Code](http://github.com/jashkenas/coffeescript/)<br>
Use `bin/coffee` to test your changes,<br>
`bin/cake test` to run the test suite,<br>
`bin/cake build` to rebuild the full CoffeeScript compiler, and<br>
`bin/cake build:except-parser` to recompile much faster if youre not editing `grammar.coffee`.
`git checkout lib && bin/cake build:full` is a good command to run when youre working on the core language. Itll refresh the `lib` folder (in case you broke something), build your altered compiler, use that to rebuild itself (a good sanity test) and then run all of the tests. If they pass, theres a good chance youve made a successful change.
* [Browser Tests](v<%= majorVersion %>/test.html)<br>
Run CoffeeScripts test suite in your current browser.
* [CoffeeScript Issues](http://github.com/jashkenas/coffeescript/issues)<br>
* [CoffeeScript on GitHub](https://github.com/jashkenas/coffeescript/)
* [CoffeeScript Issues](https://github.com/jashkenas/coffeescript/issues)<br>
Bug reports, feature proposals, and ideas for changes to the language belong here.
* [CoffeeScript Google Group](https://groups.google.com/forum/#!forum/coffeescript)<br>
If youd like to ask a question, the mailing list is a good place to get help.
* [The CoffeeScript Wiki](http://github.com/jashkenas/coffeescript/wiki)<br>
If youve ever learned a neat CoffeeScript tip or trick, or ran into a gotcha — share it on the wiki. The wiki also serves as a directory of handy [text editor extensions](http://github.com/jashkenas/coffeescript/wiki/Text-editor-plugins), [web framework plugins](http://github.com/jashkenas/coffeescript/wiki/Web-framework-plugins), and general [CoffeeScript build tools](http://github.com/jashkenas/coffeescript/wiki/Build-tools).
* [The FAQ](http://github.com/jashkenas/coffeescript/wiki/FAQ)<br>
* [The CoffeeScript Wiki](https://github.com/jashkenas/coffeescript/wiki)<br>
If youve ever learned a neat CoffeeScript tip or trick, or ran into a gotcha — share it on the wiki. The wiki also serves as a directory of handy [text editor extensions](https://github.com/jashkenas/coffeescript/wiki/Text-editor-plugins), [web framework plugins](https://github.com/jashkenas/coffeescript/wiki/Web-framework-plugins), and general [CoffeeScript build tools](https://github.com/jashkenas/coffeescript/wiki/Build-tools).
* [The FAQ](https://github.com/jashkenas/coffeescript/wiki/FAQ)<br>
Perhaps your CoffeeScript-related question has been asked before. Check the FAQ first.
* [JS2Coffee](http://js2coffee.org)<br>
* [JS2Coffee](http://js2.coffee/)<br>
Is a very well done reverse JavaScript-to-CoffeeScript compiler. Its not going to be perfect (infer what your JavaScript classes are, when you need bound functions, and so on…) — but its a great starting point for converting simple scripts.
* [High-Rez Logo](https://github.com/jashkenas/coffeescript/tree/master/documentation/images)<br>
The CoffeeScript logo is available in SVG for use in presentations.

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@@ -1,5 +1,5 @@
## Screencasts
* [A Sip of CoffeeScript](http://coffeescript.codeschool.com) is a [Code School Course](http://www.codeschool.com) which combines 6 screencasts with in-browser coding to make learning fun. The first level is free to try out.
* [Meet CoffeeScript](http://peepcode.com/products/coffeescript) is a 75-minute long screencast by [PeepCode](http://peepcode.com/). Highly memorable for its animations which demonstrate transforming CoffeeScript into the equivalent JS.
* [A Sip of CoffeeScript](http://coffeescript.codeschool.com/) is a [Code School Course](https://www.codeschool.com) which combines 6 screencasts with in-browser coding to make learning fun. The first level is free to try out.
* [Meet CoffeeScript](https://www.pluralsight.com/courses/meet-coffeescript) is a 75-minute long screencast by PeepCode, now [PluralSight](https://www.pluralsight.com/). Highly memorable for its animations which demonstrate transforming CoffeeScript into the equivalent JS.
* If youre looking for less of a time commitment, RailsCasts [CoffeeScript Basics](http://railscasts.com/episodes/267-coffeescript-basics) should have you covered, hitting all of the important notes about CoffeeScript in 11 minutes.

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@@ -1,7 +1,7 @@
## "text/coffeescript" Script Tags
## `"text/coffeescript"` Script Tags
While its not recommended for serious use, CoffeeScripts may be included directly within the browser using `<script type="text/coffeescript">` tags. The source includes a compressed and minified version of the compiler ([Download current version here, 51k when gzipped](v<%= majorVersion %>/browser-compiler/coffee-script.js)) as `v<%= majorVersion %>/browser-compiler/coffee-script.js`. Include this file on a page with inline CoffeeScript tags, and it will compile and evaluate them in order.
While its not recommended for serious use, CoffeeScripts may be included directly within the browser using `<script type="text/coffeescript">` tags. The source includes a compressed and minified version of the compiler ([Download current version here, 51k when gzipped](/v<%= majorVersion %>/browser-compiler/coffeescript.js)) as `docs/v<%= majorVersion %>/browser-compiler/coffeescript.js`. Include this file on a page with inline CoffeeScript tags, and it will compile and evaluate them in order.
In fact, the little bit of glue script that runs Try CoffeeScript” above, as well as the jQuery for the menu, is implemented in just this way. View source and look at the bottom of the page to see the example. Including the script also gives you access to `CoffeeScript.compile()` so you can pop open Firebug and try compiling some strings.
In fact, the little bit of glue script that runs [Try CoffeeScript](#try), as well as the code examples and other interactive parts of this site, is implemented in just this way. View source and look at the bottom of the page to see the example. Including the script also gives you access to `CoffeeScript.compile()` so you can pop open your JavaScript console and try compiling some strings.
The usual caveats about CoffeeScript apply — your inline scripts will run within a closure wrapper, so if you want to expose global variables or functions, attach them to the `window` object.

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@@ -1,5 +1,5 @@
## Source Maps
CoffeeScript 1.6.1 and above include support for generating source maps, a way to tell your JavaScript engine what part of your CoffeeScript program matches up with the code being evaluated. Browsers that support it can automatically use source maps to show your original source code in the debugger. To generate source maps alongside your JavaScript files, pass the `--map` or `-m` flag to the compiler.
CoffeeScript includes support for generating source maps, a way to tell your JavaScript engine what part of your CoffeeScript program matches up with the code being evaluated. Browsers that support it can automatically use source maps to show your original source code in the debugger. To generate source maps alongside your JavaScript files, pass the `--map` or `-m` flag to the compiler.
For a full introduction to source maps, how they work, and how to hook them up in your browser, read the [HTML5 Tutorial](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/).
For a full introduction to source maps, how they work, and how to hook them up in your browser, read the [HTML5 Tutorial](https://www.html5rocks.com/en/tutorials/developertools/sourcemaps/).

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@@ -1,7 +1,25 @@
## Splats
## Splats, or Rest Parameters/Spread Syntax
The JavaScript **arguments object** is a useful way to work with functions that accept variable numbers of arguments. CoffeeScript provides splats `...`, both for function definition as well as invocation, making variable numbers of arguments a little bit more palatable.
The JavaScript `arguments` object is a useful way to work with functions that accept variable numbers of arguments. CoffeeScript provides splats `...`, both for function definition as well as invocation, making variable numbers of arguments a little bit more palatable. ES2015 adopted this feature as their [rest parameters](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/rest_parameters).
```
codeFor('splats', true)
```
<div id="array-spread" class="bookmark"></div>
Splats also let us elide array elements...
```
codeFor('array_spread', 'all')
```
<div id="object-spread" class="bookmark"></div>
...and object properties.
```
codeFor('object_spread', 'JSON.stringify(currentUser)')
```
In ECMAScript this is called [spread syntax](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Spread_operator), and has been supported for arrays since ES2015 but is [coming soon for objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Spread_operator#Spread_in_object_literals). Until object spread syntax is officially supported, the CoffeeScript compiler outputs the same polyfill as [Babels rest spread transform](https://babeljs.io/docs/plugins/transform-object-rest-spread/); but once it is supported, we will revise the compilers output. Note that there are [very subtle differences](https://developers.google.com/web/updates/2017/06/object-rest-spread) between the polyfill and the current proposal.

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@@ -1,6 +1,6 @@
## String Interpolation, Block Strings, and Block Comments
## Strings
Ruby-style string interpolation is included in CoffeeScript. Double-quoted strings allow for interpolated values, using `#{ … }`, and single-quoted strings are literal. You may even use interpolation in object keys.
Like JavaScript and many other languages, CoffeeScript supports strings as delimited by the `"` or `'` characters. CoffeeScript also supports string interpolation within `"`-quoted strings, using `#{ … }`. Single-quoted strings are literal. You may even use interpolation in object keys.
```
codeFor('interpolation', 'sentence')
@@ -12,16 +12,10 @@ Multiline strings are allowed in CoffeeScript. Lines are joined by a single spac
codeFor('strings', 'mobyDick')
```
Block strings can be used to hold formatted or indentation-sensitive text (or, if you just dont feel like escaping quotes and apostrophes). The indentation level that begins the block is maintained throughout, so you can keep it all aligned with the body of your code.
Block strings, delimited by `"""` or `'''`, can be used to hold formatted or indentation-sensitive text (or, if you just dont feel like escaping quotes and apostrophes). The indentation level that begins the block is maintained throughout, so you can keep it all aligned with the body of your code.
```
codeFor('heredocs', 'html')
```
Double-quoted block strings, like other double-quoted strings, allow interpolation.
Sometimes youd 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 code.
```
codeFor('block_comment')
```

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