2.2.2 (#4986 )

* Changelog for 2.2.2 * Bump version to 2.2.2 * Bump dependencies * Update output
Fix #4889 : for...range loop condition (#4891 )
2026-01-13 08:47:55 -05:00 · 2018-02-22 00:31:14 -08:00 · 2018-02-20 00:46:20 -08:00 · 2018-02-17 16:57:49 -08:00 · 2018-02-08 21:11:11 -08:00 · 2018-02-06 22:28:15 -08:00
29 changed files with 1114 additions and 723 deletions
--- a/docs/v2/annotated-source/lexer.html
+++ b/docs/v2/annotated-source/lexer.html
@@ -920,10 +920,10 @@ can close multiple indents, so we need to know how far in we happen to be.</p>
    indent = match[<span class="hljs-number">0</span>]

    prev = @prev()
-    backslash = prev? <span class="hljs-keyword">and</span> prev[<span class="hljs-number">0</span>] <span class="hljs-keyword">is</span> <span class="hljs-string">'\\'</span>
+    backslash = prev?[<span class="hljs-number">0</span>] <span class="hljs-keyword">is</span> <span class="hljs-string">'\\'</span>
    @seenFor = <span class="hljs-literal">no</span> <span class="hljs-keyword">unless</span> backslash <span class="hljs-keyword">and</span> @seenFor
-    @seenImport = <span class="hljs-literal">no</span> <span class="hljs-keyword">unless</span> @importSpecifierList
-    @seenExport = <span class="hljs-literal">no</span> <span class="hljs-keyword">unless</span> @exportSpecifierList
+    @seenImport = <span class="hljs-literal">no</span> <span class="hljs-keyword">unless</span> (backslash <span class="hljs-keyword">and</span> @seenImport) <span class="hljs-keyword">or</span> @importSpecifierList
+    @seenExport = <span class="hljs-literal">no</span> <span class="hljs-keyword">unless</span> (backslash <span class="hljs-keyword">and</span> @seenExport) <span class="hljs-keyword">or</span> @exportSpecifierList

    size = indent.length - <span class="hljs-number">1</span> - indent.lastIndexOf <span class="hljs-string">'\n'</span>
    noNewlines = @unfinished()
@@ -944,7 +944,7 @@ can close multiple indents, so we need to know how far in we happen to be.</p>

    <span class="hljs-keyword">if</span> size &gt; @indent
      <span class="hljs-keyword">if</span> noNewlines
-        @indebt = size - @indent
+        @indebt = size - @indent <span class="hljs-keyword">unless</span> backslash
        @suppressNewlines()
        <span class="hljs-keyword">return</span> indent.length
      <span class="hljs-keyword">unless</span> @tokens.length
--- a/docs/v2/annotated-source/nodes.html
+++ b/docs/v2/annotated-source/nodes.html
--- a/docs/v2/browser-compiler/coffeescript.js
+++ b/docs/v2/browser-compiler/coffeescript.js
--- a/docs/v2/index.html
+++ b/docs/v2/index.html
@@ -646,7 +646,7 @@ div.CodeMirror-cursor {
      <section id="overview">
        <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>“It’s 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><strong>Latest Version:</strong> <a href="https://github.com/jashkenas/coffeescript/tarball/2.2.0">2.2.0</a></p>
+<p><strong>Latest Version:</strong> <a href="https://github.com/jashkenas/coffeescript/tarball/2.2.2">2.2.2</a></p>
 <blockquote class="uneditable-code-block"><pre><code class="language-bash"><span class="comment"># Install locally for a project:</span>
 npm install --save-dev coffeescript

@@ -3504,7 +3504,7 @@ say = function(text) {

 countdown = async function(seconds) {
  var i, j, ref;
-  for (i = j = ref = seconds; undefined !== 0 && (ref <= 1 ? ref <= j && j <= 1 : ref >= j && j >= 1); i = ref <= 1 ? ++j : --j) {
+  for (i = j = ref = seconds; (ref <= 1 ? j <= 1 : j >= 1); i = ref <= 1 ? ++j : --j) {
    say(i);
    await sleep(1000); // wait one second
  }
@@ -3530,7 +3530,7 @@ countdown(3);

 <span class="cm-variable">countdown</span> <span class="cm-operator">=</span> <span class="cm-keyword">async</span> <span class="cm-keyword">function</span>(<span class="cm-def">seconds</span>) {
  <span class="cm-keyword">var</span> <span class="cm-def">i</span>, <span class="cm-def">j</span>, <span class="cm-def">ref</span>;
-  <span class="cm-keyword">for</span> (<span class="cm-variable-2">i</span> <span class="cm-operator">=</span> <span class="cm-variable-2">j</span> <span class="cm-operator">=</span> <span class="cm-variable-2">ref</span> <span class="cm-operator">=</span> <span class="cm-variable-2">seconds</span>; <span class="cm-atom">undefined</span> <span class="cm-operator">!==</span> <span class="cm-number">0</span> <span class="cm-operator">&amp;&amp;</span> (<span class="cm-variable-2">ref</span> <span class="cm-operator">&lt;=</span> <span class="cm-number">1</span> <span class="cm-operator">?</span> <span class="cm-variable-2">ref</span> <span class="cm-operator">&lt;=</span> <span class="cm-variable-2">j</span> <span class="cm-operator">&amp;&amp;</span> <span class="cm-variable-2">j</span> <span class="cm-operator">&lt;=</span> <span class="cm-number">1</span> : <span class="cm-variable-2">ref</span> <span class="cm-operator">>=</span> <span class="cm-variable-2">j</span> <span class="cm-operator">&amp;&amp;</span> <span class="cm-variable-2">j</span> <span class="cm-operator">>=</span> <span class="cm-number">1</span>); <span class="cm-variable-2">i</span> <span class="cm-operator">=</span> <span class="cm-variable-2">ref</span> <span class="cm-operator">&lt;=</span> <span class="cm-number">1</span> <span class="cm-operator">?</span> <span class="cm-operator">++</span><span class="cm-variable-2">j</span> : <span class="cm-operator">--</span><span class="cm-variable-2">j</span>) {
+  <span class="cm-keyword">for</span> (<span class="cm-variable-2">i</span> <span class="cm-operator">=</span> <span class="cm-variable-2">j</span> <span class="cm-operator">=</span> <span class="cm-variable-2">ref</span> <span class="cm-operator">=</span> <span class="cm-variable-2">seconds</span>; (<span class="cm-variable-2">ref</span> <span class="cm-operator">&lt;=</span> <span class="cm-number">1</span> <span class="cm-operator">?</span> <span class="cm-variable-2">j</span> <span class="cm-operator">&lt;=</span> <span class="cm-number">1</span> : <span class="cm-variable-2">j</span> <span class="cm-operator">>=</span> <span class="cm-number">1</span>); <span class="cm-variable-2">i</span> <span class="cm-operator">=</span> <span class="cm-variable-2">ref</span> <span class="cm-operator">&lt;=</span> <span class="cm-number">1</span> <span class="cm-operator">?</span> <span class="cm-operator">++</span><span class="cm-variable-2">j</span> : <span class="cm-operator">--</span><span class="cm-variable-2">j</span>) {
    <span class="cm-variable">say</span>(<span class="cm-variable-2">i</span>);
    <span class="cm-keyword">await</span> <span class="cm-variable">sleep</span>(<span class="cm-number">1000</span>); <span class="cm-comment">// wait one second</span>
  }
@@ -4524,7 +4524,7 @@ renderStarRating = function({rating, maxStars}) {
    {(function() {
    var i, ref, results;
    results = [];
-    for (wholeStar = i = 0, ref = Math.floor(rating); undefined !== 0 && (0 <= ref ? 0 <= i && i < ref : 0 >= i && i > ref); wholeStar = 0 <= ref ? ++i : --i) {
+    for (wholeStar = i = 0, ref = Math.floor(rating); (0 <= ref ? i < ref : i > ref); wholeStar = 0 <= ref ? ++i : --i) {
      results.push(<Star className="wholeStar" key={wholeStar} />);
    }
    return results;
@@ -4533,7 +4533,7 @@ renderStarRating = function({rating, maxStars}) {
    {(function() {
    var i, ref, ref1, results;
    results = [];
-    for (emptyStar = i = ref = Math.ceil(rating), ref1 = maxStars; undefined !== 0 && (ref <= ref1 ? ref <= i && i < ref1 : ref >= i && i > ref1); emptyStar = ref <= ref1 ? ++i : --i) {
+    for (emptyStar = i = ref = Math.ceil(rating), ref1 = maxStars; (ref <= ref1 ? i < ref1 : i > ref1); emptyStar = ref <= ref1 ? ++i : --i) {
      results.push(<Star className="emptyStar" key={emptyStar} />);
    }
    return results;
@@ -4549,7 +4549,7 @@ renderStarRating = function({rating, maxStars}) {
    <span class="cm-string-2">{(function() {</span>
    <span class="cm-string-2">var i, ref, results;</span>
    <span class="cm-string-2">results = [];</span>
-    <span class="cm-string-2">for (wholeStar = i = 0, ref = Math.floor(rating); undefined !== 0 &amp;&amp; (0 &lt;= ref ? 0 &lt;= i &amp;&amp; i &lt; ref : 0 >= i &amp;&amp; i > ref); wholeStar = 0 &lt;= ref ? ++i : --i) {</span>
+    <span class="cm-string-2">for (wholeStar = i = 0, ref = Math.floor(rating); (0 &lt;= ref ? i &lt; ref : i > ref); wholeStar = 0 &lt;= ref ? ++i : --i) {</span>
      <span class="cm-string-2">results.push(&lt;Star className="wholeStar" key={wholeStar} />);</span>
    <span class="cm-string-2">}</span>
    <span class="cm-string-2">return results;</span>
@@ -4558,7 +4558,7 @@ renderStarRating = function({rating, maxStars}) {
    <span class="cm-string-2">{(function() {</span>
    <span class="cm-string-2">var i, ref, ref1, results;</span>
    <span class="cm-string-2">results = [];</span>
-    <span class="cm-string-2">for (emptyStar = i = ref = Math.ceil(rating), ref1 = maxStars; undefined !== 0 &amp;&amp; (ref &lt;= ref1 ? ref &lt;= i &amp;&amp; i &lt; ref1 : ref >= i &amp;&amp; i > ref1); emptyStar = ref &lt;= ref1 ? ++i : --i) {</span>
+    <span class="cm-string-2">for (emptyStar = i = ref = Math.ceil(rating), ref1 = maxStars; (ref &lt;= ref1 ? i &lt; ref1 : i > ref1); emptyStar = ref &lt;= ref1 ? ++i : --i) {</span>
      <span class="cm-string-2">results.push(&lt;Star className="emptyStar" key={emptyStar} />);</span>
    <span class="cm-string-2">}</span>
    <span class="cm-string-2">return results;</span>
@@ -4790,7 +4790,7 @@ The CoffeeScript logo is available in SVG for use in presentations.</li>
        </section>
        <section id="annotated-source">
          <h2>Annotated Source</h2>
-<p>You can browse the CoffeeScript 2.2.0 source in readable, annotated form <a href="annotated-source/">here</a>. You can also jump directly to a particular source file:</p>
+<p>You can browse the CoffeeScript 2.2.2 source in readable, annotated form <a href="annotated-source/">here</a>. You can also jump directly to a particular source file:</p>
 <ul>
 <li><a href="annotated-source/grammar.html">Grammar Rules — src/grammar</a></li>
 <li><a href="annotated-source/lexer.html">Lexing Tokens — src/lexer</a></li>
@@ -5467,6 +5467,22 @@ x = <span class="number">2</span> + <span class="number">2</span>
      </section>
      <section id="changelog">
        <h2>Changelog</h2>
+<div class="anchor" id="2.2.2"></div>
+<h2 class="header">
+  <a href="https://github.com/jashkenas/coffeescript/compare/2.1.1...2.2.2">2.2.2</a>
+  <span class="timestamp"> &mdash; <time datetime="2018-02-21">February 21, 2018</time></span>
+</h2><ul>
+<li>Bugfix for regression in 2.2.0 where a range with a <code>by</code> (step) value that increments or decrements in the opposite direction as the range was returning an array containing the first value of the range, whereas it should be returning an empty array. In other words, <code>x for x in [2..1] by 1</code> should equal <code>[]</code>, not <code>[2]</code> (because the step value is positive 1, counting up, whereas the range goes from 2 to 1, counting down).</li>
+<li>Bugfixes for allowing backslashes in <code>import</code> and <code>export</code> statements and lines that trigger the start of an indented block, like an <code>if</code> statement.</li>
+</ul>
+<div class="anchor" id="2.2.1"></div>
+<h2 class="header">
+  <a href="https://github.com/jashkenas/coffeescript/compare/2.1.0...2.2.1">2.2.1</a>
+  <span class="timestamp"> &mdash; <time datetime="2018-02-06">February 6, 2018</time></span>
+</h2><ul>
+<li>Bugfix for regression in 2.2.0 involving an error thrown by the compiler in certain cases when using destructuring with a splat or expansion in an array.</li>
+<li>Bugfix for regression in 2.2.0 where in certain cases a range iterator variable was declared in the global scope.</li>
+</ul>
 <div class="anchor" id="2.2.0"></div>
 <h2 class="header">
  <a href="https://github.com/jashkenas/coffeescript/compare/2.1.1...2.2.0">2.2.0</a>
--- a/docs/v2/test.html
+++ b/docs/v2/test.html
@@ -1573,6 +1573,46 @@ test "#4673: complex destructured object spread variables", ->
  {{g}...} = g: 1
  eq g, 1

+test "#4878: Compile error when using destructuring with a splat or expansion in an array", ->
+  arr = ['a', 'b', 'c', 'd']
+
+  f1 = (list) ->
+    [first, ..., last] = list
+
+  f2 = (list) ->
+    [first..., last] = list
+
+  f3 = (list) ->
+    ([first, ...] = list); first
+
+  f4 = (list) ->
+    ([first, ...rest] = list); rest
+
+  arrayEq f1(arr), arr
+  arrayEq f2(arr), arr
+  arrayEq f3(arr), 'a'
+  arrayEq f4(arr), ['b', 'c', 'd']
+
+  foo = (list) ->
+    ret =
+      if list?.length > 0
+        [first, ..., last] = list
+        [first, last]
+      else
+        []
+
+  arrayEq foo(arr), ['a', 'd']
+
+  bar = (list) ->
+    ret =
+      if list?.length > 0
+        [first, ...rest] = list
+        [first, rest]
+      else
+        []
+
+  arrayEq bar(arr), ['a', ['b', 'c', 'd']]
+
 </script>
 <script type="text/x-coffeescript" class="test" id="async">
 # Functions that contain the `await` keyword will compile into async functions,
@@ -6897,6 +6937,59 @@ test "#4871: `else if` no longer output together ", ->
   }
   '''

+test "#4898: Lexer: backslash line continuation is inconsistent", ->
+  if ( \
+      false \
+      or \
+      true \
+    )
+    a = 42
+
+  eq a, 42
+
+  if ( \
+      false \
+      or \
+      true \
+  )
+    b = 42
+
+  eq b, 42
+
+  if ( \
+            false \
+         or \
+   true \
+  )
+    c = 42
+
+  eq c, 42
+
+  if \
+   false \
+        or \
+   true
+    d = 42
+
+  eq d, 42
+
+  if \
+              false or \
+  true
+    e = 42
+
+  eq e, 42
+
+  if \
+       false or \
+    true \
+       then \
+   f = 42 \
+   else
+     f = 24
+
+  eq f, 42
+
 </script>
 <script type="text/x-coffeescript" class="test" id="csx">
 # We usually do not check the actual JS output from the compiler, but since
@@ -14329,6 +14422,73 @@ test "#4491: import- and export-specific lexing should stop after import/export
    from('foo');
    """

+# Issue #4874: Backslash not supported in import or export statements
+test "#4874: backslash `import`", ->
+
+  eqJS """
+    import foo \
+        from 'lib'
+
+    foo a
+    """,
+  """
+    import foo from 'lib';
+
+    foo(a);
+    """
+
+  eqJS """
+    import \
+                    foo \
+        from \
+    'lib'
+
+    foo a
+    """,
+  """
+    import foo from 'lib';
+
+    foo(a);
+    """
+
+  eqJS """
+    import \
+          utilityBelt \
+    , {
+      each
+    } from \
+    'underscore'
+    """,
+  """
+    import utilityBelt, {
+      each
+    } from 'underscore';
+    """
+
+test "#4874: backslash `export`", ->
+  eqJS """
+    export \
+      * \
+            from \
+      'underscore'
+    """,
+  """
+    export * from 'underscore';
+    """
+
+  eqJS """
+    export \
+        { max, min } \
+              from \
+      'underscore'
+  """,
+  """
+    export {
+      max,
+      min
+    } from 'underscore';
+    """
+
 </script>
 <script type="text/x-coffeescript" class="test" id="numbers">
 # Number Literals
@@ -16107,43 +16267,43 @@ test "#2047: Infinite loop possible when `for` loop with `range` uses variables"

  testData = [
    [1, 5, 1, [1..5]]
-    [1, 5, -1, [1]]
+    [1, 5, -1, []]
    [1, 5, up, [1..5]]
-    [1, 5, down, [1]]
+    [1, 5, down, []]

    [a, 5, 1, [1..5]]
-    [a, 5, -1, [1]]
+    [a, 5, -1, []]
    [a, 5, up, [1..5]]
-    [a, 5, down, [1]]
+    [a, 5, down, []]

    [1, b, 1, [1..5]]
-    [1, b, -1, [1]]
+    [1, b, -1, []]
    [1, b, up, [1..5]]
-    [1, b, down, [1]]
+    [1, b, down, []]

    [a, b, 1, [1..5]]
-    [a, b, -1, [1]]
+    [a, b, -1, []]
    [a, b, up, [1..5]]
-    [a, b, down, [1]]
+    [a, b, down, []]

-    [5, 1, 1, [5]]
+    [5, 1, 1, []]
    [5, 1, -1, [5..1]]
-    [5, 1, up, [5]]
+    [5, 1, up, []]
    [5, 1, down,  [5..1]]

-    [5, a, 1, [5]]
+    [5, a, 1, []]
    [5, a, -1, [5..1]]
-    [5, a, up, [5]]
+    [5, a, up, []]
    [5, a, down, [5..1]]

-    [b, 1, 1, [5]]
+    [b, 1, 1, []]
    [b, 1, -1, [5..1]]
-    [b, 1, up, [5]]
+    [b, 1, up, []]
    [b, 1, down, [5..1]]

-    [b, a, 1, [5]]
+    [b, a, 1, []]
    [b, a, -1, [5..1]]
-    [b, a, up, [5]]
+    [b, a, up, []]
    [b, a, down, [5..1]]
  ]

@@ -16159,10 +16319,10 @@ test "#2047: from, to and step as variables", ->
  arrayEq r, [1..5]

  r = (x for x in [a..b] by down)
-  arrayEq r, [1]
+  arrayEq r, []

  r = (x for x in [b..a] by up)
-  arrayEq r, [5]
+  arrayEq r, []

  r = (x for x in [b..a] by down)
  arrayEq r, [5..1]
@@ -16173,6 +16333,53 @@ test "#2047: from, to and step as variables", ->
  r = (x for x in [b..a] by step)
  arrayEq r, []

+test "#4884: Range not declaring var for the 'i'", ->
+  'use strict'
+  [0..21].forEach (idx) ->
+    idx + 1
+
+  eq global.i, undefined
+
+test "#4889: `for` loop unexpected behavior", ->
+  n = 1
+  result = []
+  for i in [0..n]
+    result.push i
+    for j in [(i+1)..n]
+      result.push j
+
+  arrayEq result, [0,1,1,2,1]
+
+test "#4889: `for` loop unexpected behavior with `by 1` on second loop", ->
+  n = 1
+  result = []
+  for i in [0..n]
+    result.push i
+    for j in [(i+1)..n] by 1
+      result.push j
+
+  arrayEq result, [0,1,1]
+
+test "countdown example from docs", ->
+  countdown = (num for num in [10..1])
+  arrayEq countdown, [10,9,8,7,6,5,4,3,2,1]
+
+test "counting up when the range goes down returns an empty array", ->
+  countdown = (num for num in [10..1] by 1)
+  arrayEq countdown, []
+
+test "counting down when the range goes up returns an empty array", ->
+  countup = (num for num in [1..10] by -1)
+  arrayEq countup, []
+
+test "counting down by too much returns just the first value", ->
+  countdown = (num for num in [10..1] by -100)
+  arrayEq countdown, [10]
+
+test "counting up by too much returns just the first value", ->
+  countup = (num for num in [1..10] by 100)
+  arrayEq countup, [1]
+
 </script>
 <script type="text/x-coffeescript" class="test" id="regexps">
 # Regular Expression Literals
--- a/documentation/sections/changelog.md
+++ b/documentation/sections/changelog.md
@@ -1,5 +1,17 @@
 ## Changelog

+```
+releaseHeader('2018-02-21', '2.2.2', '2.1.1')
+```
+*   Bugfix for regression in 2.2.0 where a range with a `by` (step) value that increments or decrements in the opposite direction as the range was returning an array containing the first value of the range, whereas it should be returning an empty array. In other words, `x for x in [2..1] by 1` should equal `[]`, not `[2]` (because the step value is positive 1, counting up, whereas the range goes from 2 to 1, counting down).
+*   Bugfixes for allowing backslashes in `import` and `export` statements and lines that trigger the start of an indented block, like an `if` statement.
+
+```
+releaseHeader('2018-02-06', '2.2.1', '2.1.0')
+```
+*   Bugfix for regression in 2.2.0 involving an error thrown by the compiler in certain cases when using destructuring with a splat or expansion in an array.
+*   Bugfix for regression in 2.2.0 where in certain cases a range iterator variable was declared in the global scope.
+
 ```
 releaseHeader('2018-02-01', '2.2.0', '2.1.1')
 ```
--- a/lib/coffeescript/browser.js
+++ b/lib/coffeescript/browser.js
@@ -1,4 +1,4 @@
-// Generated by CoffeeScript 2.2.0
+// Generated by CoffeeScript 2.2.2
 (function() {
  // This **Browser** compatibility layer extends core CoffeeScript functions
  // to make things work smoothly when compiling code directly in the browser.
--- a/lib/coffeescript/cake.js
+++ b/lib/coffeescript/cake.js
@@ -1,4 +1,4 @@
-// Generated by CoffeeScript 2.2.0
+// Generated by CoffeeScript 2.2.2
 (function() {
  // `cake` is a simplified version of [Make](http://www.gnu.org/software/make/)
  // ([Rake](http://rake.rubyforge.org/), [Jake](https://github.com/280north/jake))
--- a/lib/coffeescript/coffeescript.js
+++ b/lib/coffeescript/coffeescript.js
@@ -1,4 +1,4 @@
-// Generated by CoffeeScript 2.2.0
+// Generated by CoffeeScript 2.2.2
 (function() {
  // CoffeeScript can be used both on the server, as a command-line compiler based
  // on Node.js/V8, or to run CoffeeScript directly in the browser. This module
--- a/lib/coffeescript/command.js
+++ b/lib/coffeescript/command.js
@@ -1,4 +1,4 @@
-// Generated by CoffeeScript 2.2.0
+// Generated by CoffeeScript 2.2.2
 (function() {
  // The `coffee` utility. Handles command-line compilation of CoffeeScript
  // into various forms: saved into `.js` files or printed to stdout
--- a/lib/coffeescript/grammar.js
+++ b/lib/coffeescript/grammar.js
@@ -1,4 +1,4 @@
-// Generated by CoffeeScript 2.2.0
+// Generated by CoffeeScript 2.2.2
 (function() {
  // The CoffeeScript parser is generated by [Jison](https://github.com/zaach/jison)
  // from this grammar file. Jison is a bottom-up parser generator, similar in
--- a/lib/coffeescript/helpers.js
+++ b/lib/coffeescript/helpers.js
@@ -1,4 +1,4 @@
-// Generated by CoffeeScript 2.2.0
+// Generated by CoffeeScript 2.2.2
 (function() {
  // This file contains the common helper functions that we'd like to share among
  // the **Lexer**, **Rewriter**, and the **Nodes**. Merge objects, flatten
--- a/lib/coffeescript/index.js
+++ b/lib/coffeescript/index.js
@@ -1,4 +1,4 @@
-// Generated by CoffeeScript 2.2.0
+// Generated by CoffeeScript 2.2.2
 (function() {
  // Node.js Implementation
  var CoffeeScript, ext, fs, helpers, i, len, path, ref, universalCompile, vm,
--- a/lib/coffeescript/lexer.js
+++ b/lib/coffeescript/lexer.js
@@ -1,4 +1,4 @@
-// Generated by CoffeeScript 2.2.0
+// Generated by CoffeeScript 2.2.2
 (function() {
  // The CoffeeScript Lexer. Uses a series of token-matching regexes to attempt
  // matches against the beginning of the source code. When a match is found,
@@ -593,14 +593,14 @@
      }
      indent = match[0];
      prev = this.prev();
-      backslash = (prev != null) && prev[0] === '\\';
+      backslash = (prev != null ? prev[0] : void 0) === '\\';
      if (!(backslash && this.seenFor)) {
        this.seenFor = false;
      }
-      if (!this.importSpecifierList) {
+      if (!((backslash && this.seenImport) || this.importSpecifierList)) {
        this.seenImport = false;
      }
-      if (!this.exportSpecifierList) {
+      if (!((backslash && this.seenExport) || this.exportSpecifierList)) {
        this.seenExport = false;
      }
      size = indent.length - 1 - indent.lastIndexOf('\n');
@@ -629,7 +629,9 @@
      }
      if (size > this.indent) {
        if (noNewlines) {
-          this.indebt = size - this.indent;
+          if (!backslash) {
+            this.indebt = size - this.indent;
+          }
          this.suppressNewlines();
          return indent.length;
        }
--- a/lib/coffeescript/nodes.js
+++ b/lib/coffeescript/nodes.js
@@ -1,4 +1,4 @@
-// Generated by CoffeeScript 2.2.0
+// Generated by CoffeeScript 2.2.2
 (function() {
  // `nodes.coffee` contains all of the node classes for the syntax tree. Most
  // nodes are created as the result of actions in the [grammar](grammar.html),
@@ -2031,7 +2031,7 @@
      // When compiled normally, the range returns the contents of the *for loop*
      // needed to iterate over the values in the range. Used by comprehensions.
      compileNode(o) {
-        var cond, condPart, from, gt, idx, idxName, known, lowerBound, lt, namedIndex, stepCond, stepPart, to, upperBound, varPart;
+        var cond, condPart, from, gt, idx, idxName, known, lowerBound, lt, namedIndex, ref1, ref2, stepCond, stepNotZero, stepPart, to, upperBound, varPart;
        if (!this.fromVar) {
          this.compileVariables(o);
        }
@@ -2043,7 +2043,7 @@
        idx = del(o, 'index');
        idxName = del(o, 'name');
        namedIndex = idxName && idxName !== idx;
-        varPart = `${idx} = ${this.fromC}`;
+        varPart = known && !namedIndex ? `var ${idx} = ${this.fromC}` : `${idx} = ${this.fromC}`;
        if (this.toC !== this.toVar) {
          varPart += `, ${this.toC}`;
        }
@@ -2054,12 +2054,11 @@
        // Generate the condition.
        [from, to] = [this.fromNum, this.toNum];
        // Always check if the `step` isn't zero to avoid the infinite loop.
-        stepCond = this.stepNum ? `${this.stepNum} !== 0` : `${this.stepVar} !== 0`;
-        condPart = known ? this.step == null ? from <= to ? `${lt} ${to}` : `${gt} ${        // from < to
-to}` : (lowerBound = `${from} <= ${idx} && ${lt} ${// from > to
-to}`, upperBound = `${from} >= ${idx} && ${gt} ${to}`, from <= to ? `${stepCond} && ${lowerBound}` : `${stepCond} && ${// from < to
-upperBound}`) : (lowerBound = `${this.fromVar} <= ${idx} && ${lt} ${// from > to
-this.toVar}`, upperBound = `${this.fromVar} >= ${idx} && ${gt} ${this.toVar}`, `${stepCond} && (${this.fromVar} <= ${this.toVar} ? ${lowerBound} : ${upperBound})`);
+        stepNotZero = `${(ref1 = this.stepNum) != null ? ref1 : this.stepVar} !== 0`;
+        stepCond = `${(ref2 = this.stepNum) != null ? ref2 : this.stepVar} > 0`;
+        lowerBound = `${lt} ${(known ? to : this.toVar)}`;
+        upperBound = `${gt} ${(known ? to : this.toVar)}`;
+        condPart = this.step != null ? `${stepNotZero} && (${stepCond} ? ${lowerBound} : ${upperBound})` : known ? `${(from <= to ? lt : gt)} ${to}` : `(${this.fromVar} <= ${this.toVar} ? ${lowerBound} : ${upperBound})`;
        cond = this.stepVar ? `${this.stepVar} > 0` : `${this.fromVar} <= ${this.toVar}`;
        // Generate the step.
        stepPart = this.stepVar ? `${idx} += ${this.stepVar}` : known ? namedIndex ? from <= to ? `++${idx}` : `--${idx}` : from <= to ? `${idx}++` : `${idx}--` : namedIndex ? `${cond} ? ++${idx} : --${idx}` : `${cond} ? ${idx}++ : ${idx}--`;
@@ -3575,8 +3574,8 @@ this.toVar}`, upperBound = `${this.fromVar} >= ${idx} && ${gt} ${this.toVar}`, `
          // Sort 'splatsAndExpans' so we can show error at first disallowed token.
          objects[splatsAndExpans.sort()[1]].error("multiple splats/expansions are disallowed in an assignment");
        }
-        isSplat = splats.length;
-        isExpans = expans.length;
+        isSplat = (splats != null ? splats.length : void 0) > 0;
+        isExpans = (expans != null ? expans.length : void 0) > 0;
        isObject = this.variable.isObject();
        isArray = this.variable.isArray();
        vvar = value.compileToFragments(o, LEVEL_LIST);
@@ -3648,7 +3647,7 @@ this.toVar}`, upperBound = `${this.fromVar} >= ${idx} && ${gt} ${this.toVar}`, `
        };
        // "Complex" `objects` are processed in a loop.
        // Examples: [a, b, {c, r...}, d], [a, ..., {b, r...}, c, d]
-        loopObjects = (objs, vvarTxt) => {
+        loopObjects = (objs, vvar, vvarTxt) => {
          var acc, idx, j, len1, message, objSpreads, results, vval;
          objSpreads = hasObjSpreads(objs);
          results = [];
@@ -3707,7 +3706,7 @@ this.toVar}`, upperBound = `${this.fromVar} >= ${idx} && ${gt} ${this.toVar}`, `
          return results;
        };
        // "Simple" `objects` can be split and compiled to arrays, [a, b, c] = arr, [a, b, c...] = arr
-        assignObjects = (objs, vvarTxt) => {
+        assignObjects = (objs, vvar, vvarTxt) => {
          var vval;
          vvar = new Value(new Arr(objs, true));
          vval = vvarTxt instanceof Value ? vvarTxt : new Value(new Literal(vvarTxt));
@@ -3716,11 +3715,11 @@ this.toVar}`, upperBound = `${this.fromVar} >= ${idx} && ${gt} ${this.toVar}`, `
            subpattern: true
          }).compileToFragments(o, LEVEL_LIST));
        };
-        processObjects = function(objs, vvarTxt) {
+        processObjects = function(objs, vvar, vvarTxt) {
          if (complexObjects(objs)) {
-            return loopObjects(objs, vvarTxt);
+            return loopObjects(objs, vvar, vvarTxt);
          } else {
-            return assignObjects(objs, vvarTxt);
+            return assignObjects(objs, vvar, vvarTxt);
          }
        };
        // In case there is `Splat` or `Expansion` in `objects`,
@@ -3739,7 +3738,7 @@ this.toVar}`, upperBound = `${this.fromVar} >= ${idx} && ${gt} ${this.toVar}`, `
          leftObjs = objects.slice(0, expIdx + (isSplat ? 1 : 0));
          rightObjs = objects.slice(expIdx + 1);
          if (leftObjs.length !== 0) {
-            processObjects(leftObjs, vvarText);
+            processObjects(leftObjs, vvar, vvarText);
          }
          if (rightObjs.length !== 0) {
            // Slice or splice `objects`.
@@ -3756,11 +3755,11 @@ this.toVar}`, upperBound = `${this.fromVar} >= ${idx} && ${gt} ${this.toVar}`, `
              refExp = o.scope.freeVariable('ref');
              assigns.push([this.makeCode(refExp + ' = '), ...restVar.compileToFragments(o, LEVEL_LIST)]);
            }
-            processObjects(rightObjs, refExp);
+            processObjects(rightObjs, vvar, refExp);
          }
        } else {
          // There is no `Splat` or `Expansion` in `objects`.
-          processObjects(objects, vvarText);
+          processObjects(objects, vvar, vvarText);
        }
        if (!(top || this.subpattern)) {
          assigns.push(vvar);
--- a/lib/coffeescript/optparse.js
+++ b/lib/coffeescript/optparse.js
@@ -1,4 +1,4 @@
-// Generated by CoffeeScript 2.2.0
+// Generated by CoffeeScript 2.2.2
 (function() {
  var LONG_FLAG, MULTI_FLAG, OPTIONAL, OptionParser, SHORT_FLAG, buildRule, buildRules, normalizeArguments, repeat,
    splice = [].splice;
--- a/lib/coffeescript/register.js
+++ b/lib/coffeescript/register.js
@@ -1,4 +1,4 @@
-// Generated by CoffeeScript 2.2.0
+// Generated by CoffeeScript 2.2.2
 (function() {
  var CoffeeScript, Module, binary, child_process, ext, findExtension, fork, getRootModule, helpers, i, len, loadFile, path, ref;

--- a/lib/coffeescript/repl.js
+++ b/lib/coffeescript/repl.js
@@ -1,4 +1,4 @@
-// Generated by CoffeeScript 2.2.0
+// Generated by CoffeeScript 2.2.2
 (function() {
  var CoffeeScript, addHistory, addMultilineHandler, fs, getCommandId, merge, nodeREPL, path, replDefaults, runInContext, sawSIGINT, transpile, updateSyntaxError, vm;

--- a/lib/coffeescript/rewriter.js
+++ b/lib/coffeescript/rewriter.js
@@ -1,4 +1,4 @@
-// Generated by CoffeeScript 2.2.0
+// Generated by CoffeeScript 2.2.2
 (function() {
  // The CoffeeScript language has a good deal of optional syntax, implicit syntax,
  // and shorthand syntax. This can greatly complicate a grammar and bloat
@@ -218,7 +218,7 @@
      indexOfTag(i, ...pattern) {
        var fuzz, j, k, ref, ref1;
        fuzz = 0;
-        for (j = k = 0, ref = pattern.length; undefined !== 0 && (0 <= ref ? 0 <= k && k < ref : 0 >= k && k > ref); j = 0 <= ref ? ++k : --k) {
+        for (j = k = 0, ref = pattern.length; (0 <= ref ? k < ref : k > ref); j = 0 <= ref ? ++k : --k) {
          if (pattern[j] == null) {
            continue;
          }
--- a/lib/coffeescript/scope.js
+++ b/lib/coffeescript/scope.js
@@ -1,4 +1,4 @@
-// Generated by CoffeeScript 2.2.0
+// Generated by CoffeeScript 2.2.2
 (function() {
  // The **Scope** class regulates lexical scoping within CoffeeScript. As you
  // generate code, you create a tree of scopes in the same shape as the nested
--- a/lib/coffeescript/sourcemap.js
+++ b/lib/coffeescript/sourcemap.js
@@ -1,4 +1,4 @@
-// Generated by CoffeeScript 2.2.0
+// Generated by CoffeeScript 2.2.2
 (function() {
  // Source maps allow JavaScript runtimes to match running JavaScript back to
  // the original source code that corresponds to it. This can be minified
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
  "name": "coffeescript",
-  "version": "2.2.0",
+  "version": "2.2.2",
  "lockfileVersion": 1,
  "requires": true,
  "dependencies": {
@@ -17,9 +17,9 @@
      "dev": true
    },
    "acorn": {
-      "version": "5.2.1",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.2.1.tgz",
-      "integrity": "sha512-jG0u7c4Ly+3QkkW18V+NRDN+4bWHdln30NL1ZL2AvFZZmQe/BfopYCtghCKKVBUSetZ4QKcyA0pY6/4Gw8Pv8w==",
+      "version": "5.4.1",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.4.1.tgz",
+      "integrity": "sha512-XLmq3H/BVvW6/GbxKryGxWORz1ebilSsUDlyC27bXhWGWAZWkGwS6FLHjOlwFXNFoWFQEO/Df4u0YYd0K3BQgQ==",
      "dev": true
    },
    "acorn-dynamic-import": {
@@ -40,21 +40,20 @@
      }
    },
    "ajv": {
-      "version": "5.5.1",
-      "resolved": "https://registry.npmjs.org/ajv/-/ajv-5.5.1.tgz",
-      "integrity": "sha1-s4u4h22ehr7plJVqBOch6IskjrI=",
+      "version": "6.1.1",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.1.1.tgz",
+      "integrity": "sha1-l41Zf7wrfQ5aXD3esUmmgvKr+g4=",
      "dev": true,
      "requires": {
-        "co": "4.6.0",
        "fast-deep-equal": "1.0.0",
        "fast-json-stable-stringify": "2.0.0",
        "json-schema-traverse": "0.3.1"
      }
    },
    "ajv-keywords": {
-      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/ajv-keywords/-/ajv-keywords-2.1.1.tgz",
-      "integrity": "sha1-YXmX/F9gV2iUxDX5QNgZ4TW4B2I=",
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/ajv-keywords/-/ajv-keywords-3.1.0.tgz",
+      "integrity": "sha1-rCsnk5xUPpXSwG5/f1wnvkqlQ74=",
      "dev": true
    },
    "align-text": {
@@ -98,9 +97,9 @@
      }
    },
    "argparse": {
-      "version": "1.0.9",
-      "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.9.tgz",
-      "integrity": "sha1-c9g7wmP4bpf4zE9rrhsOkKfSLIY=",
+      "version": "1.0.10",
+      "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.10.tgz",
+      "integrity": "sha512-o5Roy6tNG4SL/FOkCAN6RzjiakZS25RLYFrcMttJqbdd8BWrnA+fGz57iN5Pb06pvBGvl5gQ0B48dJlslXvoTg==",
      "dev": true,
      "requires": {
        "sprintf-js": "1.0.3"
@@ -128,9 +127,9 @@
      "dev": true
    },
    "asn1.js": {
-      "version": "4.9.2",
-      "resolved": "https://registry.npmjs.org/asn1.js/-/asn1.js-4.9.2.tgz",
-      "integrity": "sha512-b/OsSjvWEo8Pi8H0zsDd2P6Uqo2TK2pH8gNLSJtNLM2Db0v2QaAZ0pBQJXVjAn4gBuugeVDr7s63ZogpUIwWDg==",
+      "version": "4.10.1",
+      "resolved": "https://registry.npmjs.org/asn1.js/-/asn1.js-4.10.1.tgz",
+      "integrity": "sha512-p32cOF5q0Zqs9uBiONKYLm6BClCoBCM5O9JfeUSlnQLBTxYdTK+pW+nXflm8UkKd2UYlEbYz5qEi0JuZR9ckSw==",
      "dev": true,
      "requires": {
        "bn.js": "4.11.8",
@@ -1581,9 +1580,9 @@
      "dev": true
    },
    "base64-js": {
-      "version": "1.2.1",
-      "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.2.1.tgz",
-      "integrity": "sha512-dwVUVIXsBZXwTuwnXI9RK8sBmgq09NDHzyR9SAph9eqk76gKK2JSQmZARC2zRC81JC2QTtxD0ARU5qTS25gIGw==",
+      "version": "1.2.3",
+      "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.2.3.tgz",
+      "integrity": "sha512-MsAhsUW1GxCdgYSO6tAfZrNapmUKk7mWx/k5mFY/A1gBtkaCaNapTg+FExCw1r9yeaZhqx/xPg43xgTFH6KL5w==",
      "dev": true
    },
    "big.js": {
@@ -1674,7 +1673,7 @@
      "dev": true,
      "requires": {
        "bn.js": "4.11.8",
-        "randombytes": "2.0.5"
+        "randombytes": "2.0.6"
      }
    },
    "browserify-sign": {
@@ -1717,7 +1716,7 @@
      "integrity": "sha1-bRu2AbB6TvztlwlBMgkwJ8lbwpg=",
      "dev": true,
      "requires": {
-        "base64-js": "1.2.1",
+        "base64-js": "1.2.3",
        "ieee754": "1.1.8",
        "isarray": "1.0.0"
      }
@@ -1822,12 +1821,6 @@
        "wordwrap": "0.0.2"
      }
    },
-    "co": {
-      "version": "4.6.0",
-      "resolved": "https://registry.npmjs.org/co/-/co-4.6.0.tgz",
-      "integrity": "sha1-bqa989hTrlTMuOR7+gvz+QMfsYQ=",
-      "dev": true
-    },
    "code-point-at": {
      "version": "1.1.0",
      "resolved": "https://registry.npmjs.org/code-point-at/-/code-point-at-1.1.0.tgz",
@@ -1835,9 +1828,9 @@
      "dev": true
    },
    "codemirror": {
-      "version": "5.32.0",
-      "resolved": "https://registry.npmjs.org/codemirror/-/codemirror-5.32.0.tgz",
-      "integrity": "sha512-95OxAlYiigW0g4n4ixFdavG07clJGILp3MvHh2pKR3FvyrTuHHvqtKSVbrV3/Jz6o0YqGvyCDLDTbH4h6ciaSw==",
+      "version": "5.35.0",
+      "resolved": "https://registry.npmjs.org/codemirror/-/codemirror-5.35.0.tgz",
+      "integrity": "sha512-8HQICjZlDfe1ai7bvU6m2uHxuZuFgsUCdDRU9OHVB+2RTRd+FftN1ezVCqbquG0Fyq+wETqyadKhUX46DswSUQ==",
      "dev": true
    },
    "colors": {
@@ -1910,7 +1903,7 @@
        "cipher-base": "1.0.4",
        "inherits": "2.0.3",
        "ripemd160": "2.0.1",
-        "sha.js": "2.4.9"
+        "sha.js": "2.4.10"
      }
    },
    "create-hmac": {
@@ -1924,7 +1917,7 @@
        "inherits": "2.0.3",
        "ripemd160": "2.0.1",
        "safe-buffer": "5.1.1",
-        "sha.js": "2.4.9"
+        "sha.js": "2.4.10"
      }
    },
    "cross-spawn": {
@@ -1953,8 +1946,8 @@
        "inherits": "2.0.3",
        "pbkdf2": "3.0.14",
        "public-encrypt": "4.0.0",
-        "randombytes": "2.0.5",
-        "randomfill": "1.0.3"
+        "randombytes": "2.0.6",
+        "randomfill": "1.0.4"
      }
    },
    "d": {
@@ -1963,7 +1956,7 @@
      "integrity": "sha1-dUu1v+VUUdpppYuU1F9MWwRi1Y8=",
      "dev": true,
      "requires": {
-        "es5-ext": "0.10.37"
+        "es5-ext": "0.10.39"
      }
    },
    "date-now": {
@@ -2014,7 +2007,7 @@
      "requires": {
        "bn.js": "4.11.8",
        "miller-rabin": "4.0.1",
-        "randombytes": "2.0.5"
+        "randombytes": "2.0.6"
      }
    },
    "docco": {
@@ -2031,9 +2024,9 @@
      }
    },
    "domain-browser": {
-      "version": "1.1.7",
-      "resolved": "https://registry.npmjs.org/domain-browser/-/domain-browser-1.1.7.tgz",
-      "integrity": "sha1-hnqksJP6oF8d4IwG9NeyH9+GmLw=",
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/domain-browser/-/domain-browser-1.2.0.tgz",
+      "integrity": "sha512-jnjyiM6eRyZl2H+W8Q/zLMA481hzi0eszAaBUzIVnmYVDBbnLxVNnfu1HgEBvCbL+71FrxMl3E6lpKH7Ge3OXA==",
      "dev": true
    },
    "ebnf-parser": {
@@ -2088,12 +2081,12 @@
      "dev": true
    },
    "errno": {
-      "version": "0.1.4",
-      "resolved": "https://registry.npmjs.org/errno/-/errno-0.1.4.tgz",
-      "integrity": "sha1-uJbiOp5ei6M4cfyZar02NfyaHH0=",
+      "version": "0.1.7",
+      "resolved": "https://registry.npmjs.org/errno/-/errno-0.1.7.tgz",
+      "integrity": "sha512-MfrRBDWzIWifgq6tJj60gkAwtLNb6sQPlcFrSOflcP1aFmmruKQ2wRnze/8V6kgyz7H3FF8Npzv78mZ7XLLflg==",
      "dev": true,
      "requires": {
-        "prr": "0.0.0"
+        "prr": "1.0.1"
      }
    },
    "error-ex": {
@@ -2106,9 +2099,9 @@
      }
    },
    "es5-ext": {
-      "version": "0.10.37",
-      "resolved": "https://registry.npmjs.org/es5-ext/-/es5-ext-0.10.37.tgz",
-      "integrity": "sha1-DudB0Ui4AGm6J9AgOTdWryV978M=",
+      "version": "0.10.39",
+      "resolved": "https://registry.npmjs.org/es5-ext/-/es5-ext-0.10.39.tgz",
+      "integrity": "sha512-AlaXZhPHl0po/uxMx1tyrlt1O86M6D5iVaDH8UgLfgek4kXTX6vzsRfJQWC2Ku+aG8pkw1XWzh9eTkwfVrsD5g==",
      "dev": true,
      "requires": {
        "es6-iterator": "2.0.3",
@@ -2122,7 +2115,7 @@
      "dev": true,
      "requires": {
        "d": "1.0.0",
-        "es5-ext": "0.10.37",
+        "es5-ext": "0.10.39",
        "es6-symbol": "3.1.1"
      }
    },
@@ -2133,7 +2126,7 @@
      "dev": true,
      "requires": {
        "d": "1.0.0",
-        "es5-ext": "0.10.37",
+        "es5-ext": "0.10.39",
        "es6-iterator": "2.0.3",
        "es6-set": "0.1.5",
        "es6-symbol": "3.1.1",
@@ -2147,7 +2140,7 @@
      "dev": true,
      "requires": {
        "d": "1.0.0",
-        "es5-ext": "0.10.37",
+        "es5-ext": "0.10.39",
        "es6-iterator": "2.0.3",
        "es6-symbol": "3.1.1",
        "event-emitter": "0.3.5"
@@ -2160,7 +2153,7 @@
      "dev": true,
      "requires": {
        "d": "1.0.0",
-        "es5-ext": "0.10.37"
+        "es5-ext": "0.10.39"
      }
    },
    "es6-weak-map": {
@@ -2170,7 +2163,7 @@
      "dev": true,
      "requires": {
        "d": "1.0.0",
-        "es5-ext": "0.10.37",
+        "es5-ext": "0.10.39",
        "es6-iterator": "2.0.3",
        "es6-symbol": "3.1.1"
      }
@@ -2274,7 +2267,7 @@
      "dev": true,
      "requires": {
        "d": "1.0.0",
-        "es5-ext": "0.10.37"
+        "es5-ext": "0.10.39"
      }
    },
    "events": {
@@ -3703,7 +3696,7 @@
      "integrity": "sha1-2UpGSPmxwXnWT6lykSaL22zpQ08=",
      "dev": true,
      "requires": {
-        "uc.micro": "1.0.3"
+        "uc.micro": "1.0.5"
      }
    },
    "load-json-file": {
@@ -3789,16 +3782,16 @@
      }
    },
    "markdown-it": {
-      "version": "8.4.0",
-      "resolved": "https://registry.npmjs.org/markdown-it/-/markdown-it-8.4.0.tgz",
-      "integrity": "sha512-tNuOCCfunY5v5uhcO2AUMArvKAyKMygX8tfup/JrgnsDqcCATQsAExBq7o5Ml9iMmO82bk6jYNLj6khcrl0JGA==",
+      "version": "8.4.1",
+      "resolved": "https://registry.npmjs.org/markdown-it/-/markdown-it-8.4.1.tgz",
+      "integrity": "sha512-CzzqSSNkFRUf9vlWvhK1awpJreMRqdCrBvZ8DIoDWTOkESMIF741UPAhuAmbyWmdiFPA6WARNhnu2M6Nrhwa+A==",
      "dev": true,
      "requires": {
-        "argparse": "1.0.9",
+        "argparse": "1.0.10",
        "entities": "1.1.1",
        "linkify-it": "2.0.3",
        "mdurl": "1.0.1",
-        "uc.micro": "1.0.3"
+        "uc.micro": "1.0.5"
      }
    },
    "marked": {
@@ -3841,7 +3834,7 @@
      "integrity": "sha1-Xt1StIXKHZAP5kiVUFOZoN+kX3Y=",
      "dev": true,
      "requires": {
-        "mimic-fn": "1.1.0"
+        "mimic-fn": "1.2.0"
      }
    },
    "memory-fs": {
@@ -3850,8 +3843,8 @@
      "integrity": "sha1-OpoguEYlI+RHz7x+i7gO1me/xVI=",
      "dev": true,
      "requires": {
-        "errno": "0.1.4",
-        "readable-stream": "2.3.3"
+        "errno": "0.1.7",
+        "readable-stream": "2.3.4"
      }
    },
    "micromatch": {
@@ -3886,9 +3879,9 @@
      }
    },
    "mimic-fn": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/mimic-fn/-/mimic-fn-1.1.0.tgz",
-      "integrity": "sha1-5md4PZLonb00KBi1IwudYqZyrRg=",
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/mimic-fn/-/mimic-fn-1.2.0.tgz",
+      "integrity": "sha512-jf84uxzwiuiIVKiOLpfYk7N46TSy8ubTonmneY9vrpHNAnp0QBt2BxWV9dO3/j+BoVAb+a5G6YDPW3M5HOdMWQ==",
      "dev": true
    },
    "minimalistic-assert": {
@@ -3952,7 +3945,7 @@
        "console-browserify": "1.1.0",
        "constants-browserify": "1.0.0",
        "crypto-browserify": "3.12.0",
-        "domain-browser": "1.1.7",
+        "domain-browser": "1.2.0",
        "events": "1.1.1",
        "https-browserify": "1.0.0",
        "os-browserify": "0.3.0",
@@ -3960,11 +3953,11 @@
        "process": "0.11.10",
        "punycode": "1.4.1",
        "querystring-es3": "0.2.1",
-        "readable-stream": "2.3.3",
+        "readable-stream": "2.3.4",
        "stream-browserify": "2.0.1",
-        "stream-http": "2.7.2",
+        "stream-http": "2.8.0",
        "string_decoder": "1.0.3",
-        "timers-browserify": "2.0.4",
+        "timers-browserify": "2.0.6",
        "tty-browserify": "0.0.0",
        "url": "0.11.0",
        "util": "0.10.3",
@@ -4077,10 +4070,13 @@
      "dev": true
    },
    "p-limit": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-1.1.0.tgz",
-      "integrity": "sha1-sH/y2aXYi+yAYDWJWiurZqJ5iLw=",
-      "dev": true
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-1.2.0.tgz",
+      "integrity": "sha512-Y/OtIaXtUPr4/YpMv1pCL5L5ed0rumAaAeBSj12F+bSlMdys7i8oQF/GUJmfpTS/QoaRrS/k6pma29haJpsMng==",
+      "dev": true,
+      "requires": {
+        "p-try": "1.0.0"
+      }
    },
    "p-locate": {
      "version": "2.0.0",
@@ -4088,9 +4084,15 @@
      "integrity": "sha1-IKAQOyIqcMj9OcwuWAaA893l7EM=",
      "dev": true,
      "requires": {
-        "p-limit": "1.1.0"
+        "p-limit": "1.2.0"
      }
    },
+    "p-try": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/p-try/-/p-try-1.0.0.tgz",
+      "integrity": "sha1-y8ec26+P1CKOE/Yh8rGiN8GyB7M=",
+      "dev": true
+    },
    "pako": {
      "version": "1.0.6",
      "resolved": "https://registry.npmjs.org/pako/-/pako-1.0.6.tgz",
@@ -4103,7 +4105,7 @@
      "integrity": "sha1-N8T5t+06tlx0gXtfJICTf7+XxxI=",
      "dev": true,
      "requires": {
-        "asn1.js": "4.9.2",
+        "asn1.js": "4.10.1",
        "browserify-aes": "1.1.1",
        "create-hash": "1.1.3",
        "evp_bytestokey": "1.0.3",
@@ -4174,7 +4176,7 @@
        "create-hmac": "1.1.6",
        "ripemd160": "2.0.1",
        "safe-buffer": "5.1.1",
-        "sha.js": "2.4.9"
+        "sha.js": "2.4.10"
      }
    },
    "pify": {
@@ -4202,15 +4204,15 @@
      "dev": true
    },
    "process-nextick-args": {
-      "version": "1.0.7",
-      "resolved": "https://registry.npmjs.org/process-nextick-args/-/process-nextick-args-1.0.7.tgz",
-      "integrity": "sha1-FQ4gt1ZZCtP5EJPyWk8q2L/zC6M=",
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/process-nextick-args/-/process-nextick-args-2.0.0.tgz",
+      "integrity": "sha512-MtEC1TqN0EU5nephaJ4rAtThHtC86dNN9qCuEhtshvpVBkAW5ZO7BASN9REnF9eoXGcRub+pFuKEpOHE+HbEMw==",
      "dev": true
    },
    "prr": {
-      "version": "0.0.0",
-      "resolved": "https://registry.npmjs.org/prr/-/prr-0.0.0.tgz",
-      "integrity": "sha1-GoS4WQgyVQFBGFPQCB7j+obikmo=",
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/prr/-/prr-1.0.1.tgz",
+      "integrity": "sha1-0/wRS6BplaRexok/SEzrHXj19HY=",
      "dev": true
    },
    "pseudomap": {
@@ -4229,7 +4231,7 @@
        "browserify-rsa": "4.0.1",
        "create-hash": "1.1.3",
        "parse-asn1": "5.1.0",
-        "randombytes": "2.0.5"
+        "randombytes": "2.0.6"
      }
    },
    "punycode": {
@@ -4292,21 +4294,21 @@
      }
    },
    "randombytes": {
-      "version": "2.0.5",
-      "resolved": "https://registry.npmjs.org/randombytes/-/randombytes-2.0.5.tgz",
-      "integrity": "sha512-8T7Zn1AhMsQ/HI1SjcCfT/t4ii3eAqco3yOcSzS4mozsOz69lHLsoMXmF9nZgnFanYscnSlUSgs8uZyKzpE6kg==",
+      "version": "2.0.6",
+      "resolved": "https://registry.npmjs.org/randombytes/-/randombytes-2.0.6.tgz",
+      "integrity": "sha512-CIQ5OFxf4Jou6uOKe9t1AOgqpeU5fd70A8NPdHSGeYXqXsPe6peOwI0cUl88RWZ6sP1vPMV3avd/R6cZ5/sP1A==",
      "dev": true,
      "requires": {
        "safe-buffer": "5.1.1"
      }
    },
    "randomfill": {
-      "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/randomfill/-/randomfill-1.0.3.tgz",
-      "integrity": "sha512-YL6GrhrWoic0Eq8rXVbMptH7dAxCs0J+mh5Y0euNekPPYaxEmdVGim6GdoxoRzKW2yJoU8tueifS7mYxvcFDEQ==",
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/randomfill/-/randomfill-1.0.4.tgz",
+      "integrity": "sha512-87lcbR8+MhcWcUiQ+9e+Rwx8MyR2P7qnt15ynUlbm3TU/fjbgz4GsvfSUDTemtCCtVCqb4ZcEFlyPNTh9bBTLw==",
      "dev": true,
      "requires": {
-        "randombytes": "2.0.5",
+        "randombytes": "2.0.6",
        "safe-buffer": "5.1.1"
      }
    },
@@ -4332,15 +4334,15 @@
      }
    },
    "readable-stream": {
-      "version": "2.3.3",
-      "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.3.tgz",
-      "integrity": "sha512-m+qzzcn7KUxEmd1gMbchF+Y2eIUbieUaxkWtptyHywrX0rE8QEYqPC07Vuy4Wm32/xE16NcdBctb8S0Xe/5IeQ==",
+      "version": "2.3.4",
+      "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.4.tgz",
+      "integrity": "sha512-vuYxeWYM+fde14+rajzqgeohAI7YoJcHE7kXDAc4Nk0EbuKnJfqtY9YtRkLo/tqkuF7MsBQRhPnPeyjYITp3ZQ==",
      "dev": true,
      "requires": {
        "core-util-is": "1.0.2",
        "inherits": "2.0.3",
        "isarray": "1.0.0",
-        "process-nextick-args": "1.0.7",
+        "process-nextick-args": "2.0.0",
        "safe-buffer": "5.1.1",
        "string_decoder": "1.0.3",
        "util-deprecate": "1.0.2"
@@ -4354,7 +4356,7 @@
      "requires": {
        "graceful-fs": "4.1.11",
        "minimatch": "3.0.4",
-        "readable-stream": "2.3.3",
+        "readable-stream": "2.3.4",
        "set-immediate-shim": "1.0.1"
      }
    },
@@ -4513,9 +4515,9 @@
      "dev": true
    },
    "sha.js": {
-      "version": "2.4.9",
-      "resolved": "https://registry.npmjs.org/sha.js/-/sha.js-2.4.9.tgz",
-      "integrity": "sha512-G8zektVqbiPHrylgew9Zg1VRB1L/DtXNUVAM6q4QLy8NE3qtHlFXTf8VLL4k1Yl6c7NMjtZUTdXV+X44nFaT6A==",
+      "version": "2.4.10",
+      "resolved": "https://registry.npmjs.org/sha.js/-/sha.js-2.4.10.tgz",
+      "integrity": "sha512-vnwmrFDlOExK4Nm16J2KMWHLrp14lBrjxMxBJpu++EnsuBmpiYaM/MEs46Vxxm/4FvdP5yTwuCTO9it5FSjrqA==",
      "dev": true,
      "requires": {
        "inherits": "2.0.3",
@@ -4604,18 +4606,18 @@
      "dev": true,
      "requires": {
        "inherits": "2.0.3",
-        "readable-stream": "2.3.3"
+        "readable-stream": "2.3.4"
      }
    },
    "stream-http": {
-      "version": "2.7.2",
-      "resolved": "https://registry.npmjs.org/stream-http/-/stream-http-2.7.2.tgz",
-      "integrity": "sha512-c0yTD2rbQzXtSsFSVhtpvY/vS6u066PcXOX9kBB3mSO76RiUQzL340uJkGBWnlBg4/HZzqiUXtaVA7wcRcJgEw==",
+      "version": "2.8.0",
+      "resolved": "https://registry.npmjs.org/stream-http/-/stream-http-2.8.0.tgz",
+      "integrity": "sha512-sZOFxI/5xw058XIRHl4dU3dZ+TTOIGJR78Dvo0oEAejIt4ou27k+3ne1zYmCV+v7UucbxIFQuOgnkTVHh8YPnw==",
      "dev": true,
      "requires": {
        "builtin-status-codes": "3.0.0",
        "inherits": "2.0.3",
-        "readable-stream": "2.3.3",
+        "readable-stream": "2.3.4",
        "to-arraybuffer": "1.0.1",
        "xtend": "4.0.1"
      }
@@ -4696,9 +4698,9 @@
      "dev": true
    },
    "timers-browserify": {
-      "version": "2.0.4",
-      "resolved": "https://registry.npmjs.org/timers-browserify/-/timers-browserify-2.0.4.tgz",
-      "integrity": "sha512-uZYhyU3EX8O7HQP+J9fTVYwsq90Vr68xPEFo7yrVImIxYvHgukBEgOB/SgGoorWVTzGM/3Z+wUNnboA4M8jWrg==",
+      "version": "2.0.6",
+      "resolved": "https://registry.npmjs.org/timers-browserify/-/timers-browserify-2.0.6.tgz",
+      "integrity": "sha512-HQ3nbYRAowdVd0ckGFvmJPPCOH/CHleFN/Y0YQCX1DVaB7t+KFvisuyN09fuP8Jtp1CpfSh8O8bMkHbdbPe6Pw==",
      "dev": true,
      "requires": {
        "setimmediate": "1.0.5"
@@ -4729,9 +4731,9 @@
      "dev": true
    },
    "uc.micro": {
-      "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/uc.micro/-/uc.micro-1.0.3.tgz",
-      "integrity": "sha1-ftUNXg+an7ClczeSWfKndFjVAZI=",
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/uc.micro/-/uc.micro-1.0.5.tgz",
+      "integrity": "sha512-JoLI4g5zv5qNyT09f4YAvEZIIV1oOjqnewYg5D38dkQljIzpPT296dbIGvKro3digYI1bkb7W6EP1y4uDlmzLg==",
      "dev": true
    },
    "uglify-js": {
@@ -4861,15 +4863,15 @@
      }
    },
    "webpack": {
-      "version": "3.10.0",
-      "resolved": "https://registry.npmjs.org/webpack/-/webpack-3.10.0.tgz",
-      "integrity": "sha512-fxxKXoicjdXNUMY7LIdY89tkJJJ0m1Oo8PQutZ5rLgWbV5QVKI15Cn7+/IHnRTd3vfKfiwBx6SBqlorAuNA8LA==",
+      "version": "3.11.0",
+      "resolved": "https://registry.npmjs.org/webpack/-/webpack-3.11.0.tgz",
+      "integrity": "sha512-3kOFejWqj5ISpJk4Qj/V7w98h9Vl52wak3CLiw/cDOfbVTq7FeoZ0SdoHHY9PYlHr50ZS42OfvzE2vB4nncKQg==",
      "dev": true,
      "requires": {
-        "acorn": "5.2.1",
+        "acorn": "5.4.1",
        "acorn-dynamic-import": "2.0.2",
-        "ajv": "5.5.1",
-        "ajv-keywords": "2.1.1",
+        "ajv": "6.1.1",
+        "ajv-keywords": "3.1.0",
        "async": "2.6.0",
        "enhanced-resolve": "3.4.1",
        "escope": "3.6.0",
--- a/package.json
+++ b/package.json
@@ -8,7 +8,7 @@
    "compiler"
  ],
  "author": "Jeremy Ashkenas",
-  "version": "2.2.0",
+  "version": "2.2.2",
  "license": "MIT",
  "engines": {
    "node": ">=6"
@@ -43,13 +43,13 @@
    "babel-preset-babili": "~0.1.4",
    "babel-preset-env": "~1.6.1",
    "babel-preset-minify": "^0.3.0",
-    "codemirror": "^5.32.0",
+    "codemirror": "^5.35.0",
    "docco": "~0.8.0",
    "highlight.js": "~9.12.0",
    "jison": ">=0.4.18",
-    "markdown-it": "~8.4.0",
+    "markdown-it": "~8.4.1",
    "underscore": "~1.8.3",
-    "webpack": "~3.10.0"
+    "webpack": "~3.11.0"
  },
  "dependencies": {}
 }
--- a/src/lexer.coffee
+++ b/src/lexer.coffee
@@ -454,10 +454,10 @@ exports.Lexer = class Lexer
    indent = match[0]

    prev = @prev()
-    backslash = prev? and prev[0] is '\\'
+    backslash = prev?[0] is '\\'
    @seenFor = no unless backslash and @seenFor
-    @seenImport = no unless @importSpecifierList
-    @seenExport = no unless @exportSpecifierList
+    @seenImport = no unless (backslash and @seenImport) or @importSpecifierList
+    @seenExport = no unless (backslash and @seenExport) or @exportSpecifierList

    size = indent.length - 1 - indent.lastIndexOf '\n'
    noNewlines = @unfinished()
@@ -478,7 +478,7 @@ exports.Lexer = class Lexer

    if size > @indent
      if noNewlines
-        @indebt = size - @indent
+        @indebt = size - @indent unless backslash
        @suppressNewlines()
        return indent.length
      unless @tokens.length
--- a/src/nodes.coffee
+++ b/src/nodes.coffee
@@ -1353,7 +1353,11 @@ exports.Range = class Range extends Base
    idx      = del o, 'index'
    idxName  = del o, 'name'
    namedIndex = idxName and idxName isnt idx
-    varPart  = "#{idx} = #{@fromC}"
+    varPart  =
+      if known and not namedIndex
+        "var #{idx} = #{@fromC}"
+      else
+        "#{idx} = #{@fromC}"
    varPart += ", #{@toC}" if @toC isnt @toVar
    varPart += ", #{@step}" if @step isnt @stepVar
    [lt, gt] = ["#{idx} <#{@equals}", "#{idx} >#{@equals}"]
@@ -1361,23 +1365,18 @@ exports.Range = class Range extends Base
    # Generate the condition.
    [from, to] = [@fromNum, @toNum]
    # Always check if the `step` isn't zero to avoid the infinite loop.
-    stepCond = if @stepNum then "#{@stepNum} !== 0" else "#{@stepVar} !== 0"
+    stepNotZero = "#{ @stepNum ? @stepVar } !== 0"
+    stepCond = "#{ @stepNum ? @stepVar } > 0"
+    lowerBound = "#{lt} #{ if known then to else @toVar }"
+    upperBound = "#{gt} #{ if known then to else @toVar }"
    condPart =
-      if known
-        unless @step?
-          if from <= to then "#{lt} #{to}" else "#{gt} #{to}"
-        else
-          # from < to
-          lowerBound = "#{from} <= #{idx} && #{lt} #{to}"
-          # from > to
-          upperBound = "#{from} >= #{idx} && #{gt} #{to}"
-          if from <= to then "#{stepCond} && #{lowerBound}" else "#{stepCond} && #{upperBound}"
-      else
-        # from < to
-        lowerBound = "#{@fromVar} <= #{idx} && #{lt} #{@toVar}"
-        # from > to
-        upperBound = "#{@fromVar} >= #{idx} && #{gt} #{@toVar}"
-        "#{stepCond} && (#{@fromVar} <= #{@toVar} ? #{lowerBound} : #{upperBound})"
+       if @step?
+         "#{stepNotZero} && (#{stepCond} ? #{lowerBound} : #{upperBound})"
+       else
+         if known
+           "#{ if from <= to then lt else gt } #{to}"
+         else
+          "(#{@fromVar} <= #{@toVar} ? #{lowerBound} : #{upperBound})"

    cond = if @stepVar then "#{@stepVar} > 0" else "#{@fromVar} <= #{@toVar}"

@@ -2408,8 +2407,8 @@ exports.Assign = class Assign extends Base
      # Sort 'splatsAndExpans' so we can show error at first disallowed token.
      objects[splatsAndExpans.sort()[1]].error "multiple splats/expansions are disallowed in an assignment"

-    isSplat = splats.length
-    isExpans = expans.length
+    isSplat = splats?.length > 0
+    isExpans = expans?.length > 0
    isObject = @variable.isObject()
    isArray = @variable.isArray()

@@ -2458,7 +2457,7 @@ exports.Assign = class Assign extends Base

    # "Complex" `objects` are processed in a loop.
    # Examples: [a, b, {c, r...}, d], [a, ..., {b, r...}, c, d]
-    loopObjects = (objs, vvarTxt) =>
+    loopObjects = (objs, vvar, vvarTxt) =>
      objSpreads = hasObjSpreads objs
      for obj, i in objs
        # `Elision` can be skipped.
@@ -2488,16 +2487,16 @@ exports.Assign = class Assign extends Base
        assigns.push new Assign(vvar, vval, null, param: @param, subpattern: yes).compileToFragments o, LEVEL_LIST

    # "Simple" `objects` can be split and compiled to arrays, [a, b, c] = arr, [a, b, c...] = arr
-    assignObjects = (objs, vvarTxt) =>
+    assignObjects = (objs, vvar, vvarTxt) =>
      vvar = new Value new Arr(objs, yes)
      vval = if vvarTxt instanceof Value then vvarTxt else new Value new Literal(vvarTxt)
      assigns.push new Assign(vvar, vval, null, param: @param, subpattern: yes).compileToFragments o, LEVEL_LIST

-    processObjects = (objs, vvarTxt) ->
+    processObjects = (objs, vvar, vvarTxt) ->
      if complexObjects objs
-        loopObjects objs, vvarTxt
+        loopObjects objs, vvar, vvarTxt
      else
-        assignObjects objs, vvarTxt
+        assignObjects objs, vvar, vvarTxt

    # In case there is `Splat` or `Expansion` in `objects`,
    # we can split array in two simple subarrays.
@@ -2514,7 +2513,7 @@ exports.Assign = class Assign extends Base
      expIdx = splatsAndExpans[0]
      leftObjs = objects.slice 0, expIdx + (if isSplat then 1 else 0)
      rightObjs = objects.slice expIdx + 1
-      processObjects leftObjs, vvarText if leftObjs.length isnt 0
+      processObjects leftObjs, vvar, vvarText if leftObjs.length isnt 0
      if rightObjs.length isnt 0
        # Slice or splice `objects`.
        refExp = switch
@@ -2524,10 +2523,10 @@ exports.Assign = class Assign extends Base
          restVar = refExp
          refExp = o.scope.freeVariable 'ref'
          assigns.push [@makeCode(refExp + ' = '), restVar.compileToFragments(o, LEVEL_LIST)...]
-        processObjects rightObjs, refExp
+        processObjects rightObjs, vvar, refExp
    else
      # There is no `Splat` or `Expansion` in `objects`.
-      processObjects objects, vvarText
+      processObjects objects, vvar, vvarText
    assigns.push vvar unless top or @subpattern
    fragments = @joinFragmentArrays assigns, ', '
    if o.level < LEVEL_LIST then fragments else @wrapInParentheses fragments
--- a/test/assignment.coffee
+++ b/test/assignment.coffee
@@ -945,3 +945,43 @@ test "#4673: complex destructured object spread variables", ->

  {{g}...} = g: 1
  eq g, 1
+
+test "#4878: Compile error when using destructuring with a splat or expansion in an array", ->
+  arr = ['a', 'b', 'c', 'd']
+
+  f1 = (list) ->
+    [first, ..., last] = list
+
+  f2 = (list) ->
+    [first..., last] = list
+
+  f3 = (list) ->
+    ([first, ...] = list); first
+
+  f4 = (list) ->
+    ([first, ...rest] = list); rest
+
+  arrayEq f1(arr), arr
+  arrayEq f2(arr), arr
+  arrayEq f3(arr), 'a'
+  arrayEq f4(arr), ['b', 'c', 'd']
+
+  foo = (list) ->
+    ret =
+      if list?.length > 0
+        [first, ..., last] = list
+        [first, last]
+      else
+        []
+
+  arrayEq foo(arr), ['a', 'd']
+
+  bar = (list) ->
+    ret =
+      if list?.length > 0
+        [first, ...rest] = list
+        [first, rest]
+      else
+        []
+
+  arrayEq bar(arr), ['a', ['b', 'c', 'd']]
--- a/test/control_flow.coffee
+++ b/test/control_flow.coffee
@@ -1287,3 +1287,56 @@ test "#4871: `else if` no longer output together ", ->
     2;
   }
   '''
+
+test "#4898: Lexer: backslash line continuation is inconsistent", ->
+  if ( \
+      false \
+      or \
+      true \
+    )
+    a = 42
+
+  eq a, 42
+
+  if ( \
+      false \
+      or \
+      true \
+  )
+    b = 42
+
+  eq b, 42
+
+  if ( \
+            false \
+         or \
+   true \
+  )
+    c = 42
+
+  eq c, 42
+
+  if \
+   false \
+        or \
+   true
+    d = 42
+
+  eq d, 42
+
+  if \
+              false or \
+  true
+    e = 42
+
+  eq e, 42
+
+  if \
+       false or \
+    true \
+       then \
+   f = 42 \
+   else
+     f = 24
+
+  eq f, 42
--- a/test/modules.coffee
+++ b/test/modules.coffee
@@ -853,3 +853,70 @@ test "#4491: import- and export-specific lexing should stop after import/export

    from('foo');
    """
+
+# Issue #4874: Backslash not supported in import or export statements
+test "#4874: backslash `import`", ->
+
+  eqJS """
+    import foo \
+        from 'lib'
+
+    foo a
+    """,
+  """
+    import foo from 'lib';
+
+    foo(a);
+    """
+
+  eqJS """
+    import \
+                    foo \
+        from \
+    'lib'
+
+    foo a
+    """,
+  """
+    import foo from 'lib';
+
+    foo(a);
+    """
+
+  eqJS """
+    import \
+          utilityBelt \
+    , {
+      each
+    } from \
+    'underscore'
+    """,
+  """
+    import utilityBelt, {
+      each
+    } from 'underscore';
+    """
+
+test "#4874: backslash `export`", ->
+  eqJS """
+    export \
+      * \
+            from \
+      'underscore'
+    """,
+  """
+    export * from 'underscore';
+    """
+
+  eqJS """
+    export \
+        { max, min } \
+              from \
+      'underscore'
+  """,
+  """
+    export {
+      max,
+      min
+    } from 'underscore';
+    """
--- a/test/ranges.coffee
+++ b/test/ranges.coffee
@@ -130,43 +130,43 @@ test "#2047: Infinite loop possible when `for` loop with `range` uses variables"

  testData = [
    [1, 5, 1, [1..5]]
-    [1, 5, -1, [1]]
+    [1, 5, -1, []]
    [1, 5, up, [1..5]]
-    [1, 5, down, [1]]
+    [1, 5, down, []]

    [a, 5, 1, [1..5]]
-    [a, 5, -1, [1]]
+    [a, 5, -1, []]
    [a, 5, up, [1..5]]
-    [a, 5, down, [1]]
+    [a, 5, down, []]

    [1, b, 1, [1..5]]
-    [1, b, -1, [1]]
+    [1, b, -1, []]
    [1, b, up, [1..5]]
-    [1, b, down, [1]]
+    [1, b, down, []]

    [a, b, 1, [1..5]]
-    [a, b, -1, [1]]
+    [a, b, -1, []]
    [a, b, up, [1..5]]
-    [a, b, down, [1]]
+    [a, b, down, []]

-    [5, 1, 1, [5]]
+    [5, 1, 1, []]
    [5, 1, -1, [5..1]]
-    [5, 1, up, [5]]
+    [5, 1, up, []]
    [5, 1, down,  [5..1]]

-    [5, a, 1, [5]]
+    [5, a, 1, []]
    [5, a, -1, [5..1]]
-    [5, a, up, [5]]
+    [5, a, up, []]
    [5, a, down, [5..1]]

-    [b, 1, 1, [5]]
+    [b, 1, 1, []]
    [b, 1, -1, [5..1]]
-    [b, 1, up, [5]]
+    [b, 1, up, []]
    [b, 1, down, [5..1]]

-    [b, a, 1, [5]]
+    [b, a, 1, []]
    [b, a, -1, [5..1]]
-    [b, a, up, [5]]
+    [b, a, up, []]
    [b, a, down, [5..1]]
  ]

@@ -182,10 +182,10 @@ test "#2047: from, to and step as variables", ->
  arrayEq r, [1..5]

  r = (x for x in [a..b] by down)
-  arrayEq r, [1]
+  arrayEq r, []

  r = (x for x in [b..a] by up)
-  arrayEq r, [5]
+  arrayEq r, []

  r = (x for x in [b..a] by down)
  arrayEq r, [5..1]
@@ -195,3 +195,50 @@ test "#2047: from, to and step as variables", ->
  step = 0
  r = (x for x in [b..a] by step)
  arrayEq r, []
+
+test "#4884: Range not declaring var for the 'i'", ->
+  'use strict'
+  [0..21].forEach (idx) ->
+    idx + 1
+
+  eq global.i, undefined
+
+test "#4889: `for` loop unexpected behavior", ->
+  n = 1
+  result = []
+  for i in [0..n]
+    result.push i
+    for j in [(i+1)..n]
+      result.push j
+
+  arrayEq result, [0,1,1,2,1]
+
+test "#4889: `for` loop unexpected behavior with `by 1` on second loop", ->
+  n = 1
+  result = []
+  for i in [0..n]
+    result.push i
+    for j in [(i+1)..n] by 1
+      result.push j
+
+  arrayEq result, [0,1,1]
+
+test "countdown example from docs", ->
+  countdown = (num for num in [10..1])
+  arrayEq countdown, [10,9,8,7,6,5,4,3,2,1]
+
+test "counting up when the range goes down returns an empty array", ->
+  countdown = (num for num in [10..1] by 1)
+  arrayEq countdown, []
+
+test "counting down when the range goes up returns an empty array", ->
+  countup = (num for num in [1..10] by -1)
+  arrayEq countup, []
+
+test "counting down by too much returns just the first value", ->
+  countdown = (num for num in [10..1] by -100)
+  arrayEq countdown, [10]
+
+test "counting up by too much returns just the first value", ->
+  countup = (num for num in [1..10] by 100)
+  arrayEq countup, [1]
Author	SHA1	Message	Date
Geoffrey Booth	e0833c29ce	2.2.2 (#4986 ) * Changelog for 2.2.2 * Bump version to 2.2.2 * Bump dependencies * Update output	2018-02-22 00:31:14 -08:00
zdenko	72ab6feb2f	Fix #4889 : for...range loop condition (#4891 ) * fix #4889 * test * move test from 'control_flow' to 'ranges' * More range tests	2018-02-20 00:46:20 -08:00
zdenko	eb7009268d	fix #4898 (#4899 )	2018-02-17 16:57:49 -08:00
zdenko	571e9df335	fix #4874 (#4888 )	2018-02-08 21:11:11 -08:00
Geoffrey Booth	a73f66bc11	2.2.1 (#4885 ) * 2.2.1 changelog * Bump version to 2.2.1 and update output	2018-02-06 22:28:15 -08:00
zdenko	ba094126e2	Fix #4882 : Range not declaring var for the "i" (#4883 ) * fix #4882 * test	2018-02-04 13:33:08 -08:00
zdenko	794f65fbd7	Fix #4878 : Compile error when using destructuring with a splat or expansion in an array (#4879 ) * fix #4878 * improvements * test * refactor	2018-02-03 13:35:41 -08:00