2.2.3

docs/v2/annotated-source/nodes.html

@@ -3215,7 +3215,9 @@ <h3 id="obj">Obj</h3>
             <div class="content"><div class='highlight'><pre>      message = isUnassignable prop.unwrapAll().value
       prop.error message <span class="hljs-keyword">if</span> message
 
-      prop = prop.value <span class="hljs-keyword">if</span> prop <span class="hljs-keyword">instanceof</span> Assign <span class="hljs-keyword">and</span> prop.context <span class="hljs-keyword">is</span> <span class="hljs-string">'object'</span>
+      prop = prop.value <span class="hljs-keyword">if</span> prop <span class="hljs-keyword">instanceof</span> Assign <span class="hljs-keyword">and</span>
+        prop.context <span class="hljs-keyword">is</span> <span class="hljs-string">'object'</span> <span class="hljs-keyword">and</span>
+        prop.value?.base <span class="hljs-keyword">not</span> <span class="hljs-keyword">instanceof</span> Arr
       <span class="hljs-keyword">return</span> <span class="hljs-literal">no</span> <span class="hljs-keyword">unless</span> prop.isAssignable()
     <span class="hljs-literal">yes</span>
 
@@ -4933,7 +4935,8 @@ <h3 id="assign">Assign</h3>
       vvarText = ref
 <span class="hljs-function">
     <span class="hljs-title">slicer</span> = <span class="hljs-params">(type)</span> -&gt;</span> (vvar, start, end = <span class="hljs-literal">no</span>) -&gt;
-      args = [<span class="hljs-keyword">new</span> IdentifierLiteral(vvar), <span class="hljs-keyword">new</span> NumberLiteral(start)]
+      vvar = <span class="hljs-keyword">new</span> IdentifierLiteral vvar <span class="hljs-keyword">unless</span> vvar <span class="hljs-keyword">instanceof</span> Value
+      args = [vvar, <span class="hljs-keyword">new</span> NumberLiteral(start)]
       args.push <span class="hljs-keyword">new</span> NumberLiteral end <span class="hljs-keyword">if</span> end
       slice = <span class="hljs-keyword">new</span> Value (<span class="hljs-keyword">new</span> IdentifierLiteral utility type, o), [<span class="hljs-keyword">new</span> Access <span class="hljs-keyword">new</span> PropertyName <span class="hljs-string">'call'</span>]
       <span class="hljs-keyword">new</span> Value <span class="hljs-keyword">new</span> Call slice, args</pre></div></div>
@@ -5184,7 +5187,7 @@ <h3 id="assign">Assign</h3>
             </div>
 
             <div class="content"><div class='highlight'><pre>        refExp = <span class="hljs-keyword">switch</span>
-          <span class="hljs-keyword">when</span> isSplat <span class="hljs-keyword">then</span> compSplice objects[expIdx].unwrapAll().value, rightObjs.length * <span class="hljs-number">-1</span>
+          <span class="hljs-keyword">when</span> isSplat <span class="hljs-keyword">then</span> compSplice <span class="hljs-keyword">new</span> Value(objects[expIdx].name), rightObjs.length * <span class="hljs-number">-1</span>
           <span class="hljs-keyword">when</span> isExpans <span class="hljs-keyword">then</span> compSlice vvarText, rightObjs.length * <span class="hljs-number">-1</span>
         <span class="hljs-keyword">if</span> complexObjects rightObjs
           restVar = refExp

docs/v2/index.html

@@ -646,7 +646,7 @@
       <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/2.2.2">2.2.2</a></p>
+<p><strong>Latest Version:</strong> <a href="https://github.com/jashkenas/coffeescript/tarball/2.2.3">2.2.3</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
 
@@ -4790,7 +4790,7 @@ <h2>Web Chat (IRC)</h2>
         </section>
         <section id="annotated-source">
           <h2>Annotated Source</h2>
-<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>
+<p>You can browse the CoffeeScript 2.2.3 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 +5467,14 @@ <h3>Argument parsing and shebang (<code>#!</code>) lines</h3>
       </section>
       <section id="changelog">
         <h2>Changelog</h2>
+<div class="anchor" id="2.2.3"></div>
+<h2 class="header">
+  <a href="https://github.com/jashkenas/coffeescript/compare/2.1.2...2.2.3">2.2.3</a>
+  <span class="timestamp"> &mdash; <time datetime="2018-03-11">March 11, 2018</time></span>
+</h2><ul>
+<li>Bugfix for object destructuring with an empty array as a key’s value: <code>{ key: [] } = obj</code>.</li>
+<li>Bugfix for array destructuring onto targets attached to <code>this</code>: <code>[ @most... , @penultimate, @last ] = arr</code>.</li>
+</ul>
 <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>

docs/v2/test.html

@@ -1586,7 +1586,7 @@ <h1>CoffeeScript Test Suite</h1>
     ([first, ...] = list); first
 
   f4 = (list) ->
-    ([first, ...rest] = list); rest
+    ([first, rest...] = list); rest
 
   arrayEq f1(arr), arr
   arrayEq f2(arr), arr
@@ -1606,13 +1606,60 @@ <h1>CoffeeScript Test Suite</h1>
   bar = (list) ->
     ret =
       if list?.length > 0
-        [first, ...rest] = list
+        [first, rest...] = list
         [first, rest]
       else
         []
 
   arrayEq bar(arr), ['a', ['b', 'c', 'd']]
 
+test "destructuring assignment with an empty array in object", ->
+  obj =
+    a1: [1, 2]
+    b1: 3
+
+  {a1:[], b1} = obj
+  eq 'undefined', typeof a1
+  eq b1, 3
+
+  obj =
+    a2:
+      b2: [1, 2]
+    c2: 3
+
+  {a2: {b2:[]}, c2} = obj
+  eq 'undefined', typeof b2
+  eq c2, 3
+
+test "#5004: array destructuring with accessors", ->
+  obj =
+    arr: ['a', 'b', 'c', 'd']
+    list: {}
+    f1: ->
+      [@first, @rest...] = @arr
+    f2: ->
+      [@second, @third..., @last] = @rest
+    f3: ->
+      [@list.a, @list.middle..., @list.d] = @arr
+
+  obj.f1()
+  eq obj.first, 'a'
+  arrayEq obj.rest, ['b', 'c', 'd']
+
+  obj.f2()
+  eq obj.second, 'b'
+  arrayEq obj.third, ['c']
+  eq obj.last, 'd'
+
+  obj.f3()
+  eq obj.list.a, 'a'
+  arrayEq obj.list.middle, ['b', 'c']
+  eq obj.list.d, 'd'
+
+  [obj.list.middle..., d] = obj.arr
+  eq d, 'd'
+  arrayEq obj.list.middle, ['a', 'b', 'c']
+
 </script>
 <script type="text/x-coffeescript" class="test" id="async">
 # Functions that contain the `await` keyword will compile into async functions,

documentation/sections/changelog.md

@@ -1,5 +1,11 @@
 ## Changelog
 
+```
+releaseHeader('2018-03-11', '2.2.3', '2.1.2')
+```
+*   Bugfix for object destructuring with an empty array as a key’s value: `{ key: [] } = obj`.
+*   Bugfix for array destructuring onto targets attached to `this`: `[ @most... , @penultimate, @last ] = arr`.
+
 ```
 releaseHeader('2018-02-21', '2.2.2', '2.1.1')
 ```