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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/181871">181871</a></dd>
<dt>Author</dt> <dd>dino@apple.com</dd>
<dt>Date</dt> <dd>2015-03-23 14:37:53 -0700 (Mon, 23 Mar 2015)</dd>
</dl>
<h3>Log Message</h3>
<pre>ES7: Implement Array.prototype.includes
https://bugs.webkit.org/show_bug.cgi?id=142707
Reviewed by Geoffrey Garen.
Source/JavaScriptCore:
Add support for the ES7 includes method on Arrays.
https://github.com/tc39/Array.prototype.includes
* builtins/Array.prototype.js:
(includes): Implementation in JS.
* runtime/ArrayPrototype.cpp: Add 'includes' to the lookup table.
LayoutTests:
* js/array-includes-expected.txt: Added.
* js/array-includes.html: Added.
* js/script-tests/array-includes.js: Added.
* js/script-tests/Object-getOwnPropertyNames.js: Add 'includes'.
* js/Object-getOwnPropertyNames-expected.txt: Add 'includes'.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkLayoutTestsChangeLog">trunk/LayoutTests/ChangeLog</a></li>
<li><a href="#trunkLayoutTestsjsObjectgetOwnPropertyNamesexpectedtxt">trunk/LayoutTests/js/Object-getOwnPropertyNames-expected.txt</a></li>
<li><a href="#trunkLayoutTestsjsscripttestsObjectgetOwnPropertyNamesjs">trunk/LayoutTests/js/script-tests/Object-getOwnPropertyNames.js</a></li>
<li><a href="#trunkSourceJavaScriptCoreChangeLog">trunk/Source/JavaScriptCore/ChangeLog</a></li>
<li><a href="#trunkSourceJavaScriptCorebuiltinsArrayprototypejs">trunk/Source/JavaScriptCore/builtins/Array.prototype.js</a></li>
<li><a href="#trunkSourceJavaScriptCoreruntimeArrayPrototypecpp">trunk/Source/JavaScriptCore/runtime/ArrayPrototype.cpp</a></li>
</ul>
<h3>Added Paths</h3>
<ul>
<li><a href="#trunkLayoutTestsjsarrayincludesexpectedtxt">trunk/LayoutTests/js/array-includes-expected.txt</a></li>
<li><a href="#trunkLayoutTestsjsarrayincludeshtml">trunk/LayoutTests/js/array-includes.html</a></li>
<li><a href="#trunkLayoutTestsjsscripttestsarrayincludesjs">trunk/LayoutTests/js/script-tests/array-includes.js</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkLayoutTestsChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/ChangeLog (181870 => 181871)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/ChangeLog 2015-03-23 21:32:38 UTC (rev 181870)
+++ trunk/LayoutTests/ChangeLog 2015-03-23 21:37:53 UTC (rev 181871)
</span><span class="lines">@@ -1,3 +1,16 @@
</span><ins>+2015-03-23 Dean Jackson <dino@apple.com>
+
+ ES7: Implement Array.prototype.includes
+ https://bugs.webkit.org/show_bug.cgi?id=142707
+
+ Reviewed by Geoffrey Garen.
+
+ * js/array-includes-expected.txt: Added.
+ * js/array-includes.html: Added.
+ * js/script-tests/array-includes.js: Added.
+ * js/script-tests/Object-getOwnPropertyNames.js: Add 'includes'.
+ * js/Object-getOwnPropertyNames-expected.txt: Add 'includes'.
+
</ins><span class="cx"> 2015-03-23 Joseph Pecoraro <pecoraro@apple.com>
</span><span class="cx">
</span><span class="cx"> __defineGetter__/__defineSetter__ should throw exceptions
</span></span></pre></div>
<a id="trunkLayoutTestsjsObjectgetOwnPropertyNamesexpectedtxt"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/js/Object-getOwnPropertyNames-expected.txt (181870 => 181871)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/js/Object-getOwnPropertyNames-expected.txt 2015-03-23 21:32:38 UTC (rev 181870)
+++ trunk/LayoutTests/js/Object-getOwnPropertyNames-expected.txt 2015-03-23 21:37:53 UTC (rev 181871)
</span><span class="lines">@@ -45,7 +45,7 @@
</span><span class="cx"> PASS getSortedOwnPropertyNames(Function) is ['length', 'name', 'prototype']
</span><span class="cx"> PASS getSortedOwnPropertyNames(Function.prototype) is ['apply', 'bind', 'call', 'constructor', 'length', 'name', 'toString']
</span><span class="cx"> PASS getSortedOwnPropertyNames(Array) is ['from', 'isArray', 'length', 'name', 'of', 'prototype']
</span><del>-PASS getSortedOwnPropertyNames(Array.prototype) is ['concat', 'constructor', 'entries', 'every', 'fill', 'filter', 'find', 'findIndex', 'forEach', 'indexOf', 'join', 'keys', 'lastIndexOf', 'length', 'map', 'pop', 'push', 'reduce', 'reduceRight', 'reverse', 'shift', 'slice', 'some', 'sort', 'splice', 'toLocaleString', 'toString', 'unshift']
</del><ins>+PASS getSortedOwnPropertyNames(Array.prototype) is ['concat', 'constructor', 'entries', 'every', 'fill', 'filter', 'find', 'findIndex', 'forEach', 'includes', 'indexOf', 'join', 'keys', 'lastIndexOf', 'length', 'map', 'pop', 'push', 'reduce', 'reduceRight', 'reverse', 'shift', 'slice', 'some', 'sort', 'splice', 'toLocaleString', 'toString', 'unshift']
</ins><span class="cx"> PASS getSortedOwnPropertyNames(String) is ['fromCharCode', 'length', 'name', 'prototype']
</span><span class="cx"> PASS getSortedOwnPropertyNames(String.prototype) is ['anchor', 'big', 'blink', 'bold', 'charAt', 'charCodeAt', 'concat', 'constructor', 'endsWith', 'fixed', 'fontcolor', 'fontsize', 'includes', 'indexOf', 'italics', 'lastIndexOf', 'length', 'link', 'localeCompare', 'match', 'repeat', 'replace', 'search', 'slice', 'small', 'split', 'startsWith', 'strike', 'sub', 'substr', 'substring', 'sup', 'toLocaleLowerCase', 'toLocaleUpperCase', 'toLowerCase', 'toString', 'toUpperCase', 'trim', 'trimLeft', 'trimRight', 'valueOf']
</span><span class="cx"> PASS getSortedOwnPropertyNames(Boolean) is ['length', 'name', 'prototype']
</span></span></pre></div>
<a id="trunkLayoutTestsjsarrayincludesexpectedtxt"></a>
<div class="addfile"><h4>Added: trunk/LayoutTests/js/array-includes-expected.txt (0 => 181871)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/js/array-includes-expected.txt (rev 0)
+++ trunk/LayoutTests/js/array-includes-expected.txt 2015-03-23 21:37:53 UTC (rev 181871)
</span><span class="lines">@@ -0,0 +1,35 @@
</span><ins>+Tests for Array.prototype.includes
+
+On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
+
+
+PASS [].includes.length is 1
+PASS [1, 2, 3].includes(2) is true
+PASS [1, 2, 3].includes(4) is false
+PASS [].includes(1) is false
+PASS [1, 2, 3].includes(1, 2) is false
+PASS [1, 2, 3].includes(3, 3) is false
+PASS [1, 2, 3].includes(2, undefined) is true
+PASS [1, 2, 3].includes(2, null) is true
+PASS [1, 2, 3].includes(2, 1, 2) is true
+PASS [1, 2, 3].includes(2, Number) is true
+PASS [1, 2, 3].includes(2, Number(2)) is false
+PASS [1, 2, 3].includes(2, 'egg') is true
+PASS [1, 2, 3].includes(2, '3') is false
+PASS [1, 2, 3].includes(3, -1) is true
+PASS [1, 2, 3].includes(1, -2) is false
+PASS [1, 2, 3].includes(1, -3) is true
+PASS [1, 2, NaN, 4].includes(NaN) is true
+PASS ['egg', 'bacon', 'sausage'].includes('egg') is true
+PASS ['egg', 'bacon', 'sausage'].includes('spinach') is false
+Array with holes
+PASS a.includes('egg') is true
+PASS a.includes('sausage') is true
+PASS a.includes('hashbrown') is false
+PASS a.includes('toast') is false
+PASS Array.prototype.includes.call(undefined, 1) threw exception TypeError: Array.prototype.includes requires that |this| not be undefined.
+PASS Array.prototype.includes.call(null, 1) threw exception TypeError: Array.prototype.includes requires that |this| not be null.
+PASS successfullyParsed is true
+
+TEST COMPLETE
+
</ins><span class="cx">Property changes on: trunk/LayoutTests/js/array-includes-expected.txt
</span><span class="cx">___________________________________________________________________
</span></span></pre></div>
<a id="svnmimetype"></a>
<div class="addfile"><h4>Added: svn:mime-type</h4></div>
<a id="svnkeywords"></a>
<div class="addfile"><h4>Added: svn:keywords</h4></div>
<a id="svneolstyle"></a>
<div class="addfile"><h4>Added: svn:eol-style</h4></div>
<a id="trunkLayoutTestsjsarrayincludeshtml"></a>
<div class="addfile"><h4>Added: trunk/LayoutTests/js/array-includes.html (0 => 181871)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/js/array-includes.html (rev 0)
+++ trunk/LayoutTests/js/array-includes.html 2015-03-23 21:37:53 UTC (rev 181871)
</span><span class="lines">@@ -0,0 +1,10 @@
</span><ins>+<!DOCTYPE HTML>
+<html>
+<head>
+<script src="../resources/js-test-pre.js"></script>
+</head>
+<body>
+<script src="script-tests/array-includes.js"></script>
+<script src="../resources/js-test-post.js"></script>
+</body>
+</html>
</ins><span class="cx">Property changes on: trunk/LayoutTests/js/array-includes.html
</span><span class="cx">___________________________________________________________________
</span></span></pre></div>
<a id="svnmimetype"></a>
<div class="addfile"><h4>Added: svn:mime-type</h4></div>
<a id="svnkeywords"></a>
<div class="addfile"><h4>Added: svn:keywords</h4></div>
<a id="svneolstyle"></a>
<div class="addfile"><h4>Added: svn:eol-style</h4></div>
<a id="trunkLayoutTestsjsscripttestsObjectgetOwnPropertyNamesjs"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/js/script-tests/Object-getOwnPropertyNames.js (181870 => 181871)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/js/script-tests/Object-getOwnPropertyNames.js 2015-03-23 21:32:38 UTC (rev 181870)
+++ trunk/LayoutTests/js/script-tests/Object-getOwnPropertyNames.js 2015-03-23 21:37:53 UTC (rev 181871)
</span><span class="lines">@@ -53,7 +53,7 @@
</span><span class="cx"> "Function": "['length', 'name', 'prototype']",
</span><span class="cx"> "Function.prototype": "['apply', 'bind', 'call', 'constructor', 'length', 'name', 'toString']",
</span><span class="cx"> "Array": "['from', 'isArray', 'length', 'name', 'of', 'prototype']",
</span><del>- "Array.prototype": "['concat', 'constructor', 'entries', 'every', 'fill', 'filter', 'find', 'findIndex', 'forEach', 'indexOf', 'join', 'keys', 'lastIndexOf', 'length', 'map', 'pop', 'push', 'reduce', 'reduceRight', 'reverse', 'shift', 'slice', 'some', 'sort', 'splice', 'toLocaleString', 'toString', 'unshift']",
</del><ins>+ "Array.prototype": "['concat', 'constructor', 'entries', 'every', 'fill', 'filter', 'find', 'findIndex', 'forEach', 'includes', 'indexOf', 'join', 'keys', 'lastIndexOf', 'length', 'map', 'pop', 'push', 'reduce', 'reduceRight', 'reverse', 'shift', 'slice', 'some', 'sort', 'splice', 'toLocaleString', 'toString', 'unshift']",
</ins><span class="cx"> "String": "['fromCharCode', 'length', 'name', 'prototype']",
</span><span class="cx"> "String.prototype": "['anchor', 'big', 'blink', 'bold', 'charAt', 'charCodeAt', 'concat', 'constructor', 'endsWith', 'fixed', 'fontcolor', 'fontsize', 'includes', 'indexOf', 'italics', 'lastIndexOf', 'length', 'link', 'localeCompare', 'match', 'repeat', 'replace', 'search', 'slice', 'small', 'split', 'startsWith', 'strike', 'sub', 'substr', 'substring', 'sup', 'toLocaleLowerCase', 'toLocaleUpperCase', 'toLowerCase', 'toString', 'toUpperCase', 'trim', 'trimLeft', 'trimRight', 'valueOf']",
</span><span class="cx"> "Boolean": "['length', 'name', 'prototype']",
</span></span></pre></div>
<a id="trunkLayoutTestsjsscripttestsarrayincludesjs"></a>
<div class="addfile"><h4>Added: trunk/LayoutTests/js/script-tests/array-includes.js (0 => 181871)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/js/script-tests/array-includes.js (rev 0)
+++ trunk/LayoutTests/js/script-tests/array-includes.js 2015-03-23 21:37:53 UTC (rev 181871)
</span><span class="lines">@@ -0,0 +1,45 @@
</span><ins>+description("Tests for Array.prototype.includes");
+
+shouldBe("[].includes.length", "1");
+
+shouldBeTrue("[1, 2, 3].includes(2)");
+shouldBeFalse("[1, 2, 3].includes(4)");
+shouldBeFalse("[].includes(1)");
+
+shouldBeFalse("[1, 2, 3].includes(1, 2)");
+shouldBeFalse("[1, 2, 3].includes(3, 3)");
+shouldBeTrue("[1, 2, 3].includes(2, undefined)");
+shouldBeTrue("[1, 2, 3].includes(2, null)");
+shouldBeTrue("[1, 2, 3].includes(2, 1, 2)");
+shouldBeTrue("[1, 2, 3].includes(2, Number)");
+shouldBeFalse("[1, 2, 3].includes(2, Number(2))");
+shouldBeTrue("[1, 2, 3].includes(2, 'egg')");
+shouldBeFalse("[1, 2, 3].includes(2, '3')");
+
+shouldBeTrue("[1, 2, 3].includes(3, -1)");
+shouldBeFalse("[1, 2, 3].includes(1, -2)");
+shouldBeTrue("[1, 2, 3].includes(1, -3)");
+
+shouldBeTrue("[1, 2, NaN, 4].includes(NaN)");
+
+shouldBeTrue("['egg', 'bacon', 'sausage'].includes('egg')");
+shouldBeFalse("['egg', 'bacon', 'sausage'].includes('spinach')");
+
+debug("Array with holes");
+
+var a = [];
+a[0] = 'egg';
+a[1] = 'bacon';
+a[5] = 'sausage';
+a[6] = 'spinach';
+a[-2] = 'toast';
+
+shouldBeTrue("a.includes('egg')");
+shouldBeTrue("a.includes('sausage')");
+shouldBeFalse("a.includes('hashbrown')");
+shouldBeFalse("a.includes('toast')");
+
+shouldThrow("Array.prototype.includes.call(undefined, 1)");
+shouldThrow("Array.prototype.includes.call(null, 1)");
+
+
</ins><span class="cx">Property changes on: trunk/LayoutTests/js/script-tests/array-includes.js
</span><span class="cx">___________________________________________________________________
</span></span></pre></div>
<a id="svnmimetype"></a>
<div class="addfile"><h4>Added: svn:mime-type</h4></div>
<a id="svnkeywords"></a>
<div class="addfile"><h4>Added: svn:keywords</h4></div>
<a id="svneolstyle"></a>
<div class="addfile"><h4>Added: svn:eol-style</h4></div>
<a id="trunkSourceJavaScriptCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/ChangeLog (181870 => 181871)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/ChangeLog 2015-03-23 21:32:38 UTC (rev 181870)
+++ trunk/Source/JavaScriptCore/ChangeLog 2015-03-23 21:37:53 UTC (rev 181871)
</span><span class="lines">@@ -1,3 +1,17 @@
</span><ins>+2015-03-23 Dean Jackson <dino@apple.com>
+
+ ES7: Implement Array.prototype.includes
+ https://bugs.webkit.org/show_bug.cgi?id=142707
+
+ Reviewed by Geoffrey Garen.
+
+ Add support for the ES7 includes method on Arrays.
+ https://github.com/tc39/Array.prototype.includes
+
+ * builtins/Array.prototype.js:
+ (includes): Implementation in JS.
+ * runtime/ArrayPrototype.cpp: Add 'includes' to the lookup table.
+
</ins><span class="cx"> 2015-03-23 Joseph Pecoraro <pecoraro@apple.com>
</span><span class="cx">
</span><span class="cx"> __defineGetter__/__defineSetter__ should throw exceptions
</span></span></pre></div>
<a id="trunkSourceJavaScriptCorebuiltinsArrayprototypejs"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/builtins/Array.prototype.js (181870 => 181871)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/builtins/Array.prototype.js 2015-03-23 21:32:38 UTC (rev 181870)
+++ trunk/Source/JavaScriptCore/builtins/Array.prototype.js 2015-03-23 21:37:53 UTC (rev 181871)
</span><span class="lines">@@ -236,3 +236,40 @@
</span><span class="cx"> }
</span><span class="cx"> return -1;
</span><span class="cx"> }
</span><ins>+
+function includes(searchElement /*, fromIndex*/) {
+ "use strict";
+ if (this === null)
+ throw new @TypeError("Array.prototype.includes requires that |this| not be null");
+
+ if (this === undefined)
+ throw new @TypeError("Array.prototype.includes requires that |this| not be undefined");
+
+ var array = @Object(this);
+ var length = array.length >>> 0;
+
+ if (length === 0)
+ return false;
+
+ var fromIndex = 0;
+ if (arguments.length > 1 && arguments[1] !== undefined)
+ fromIndex = arguments[1] | 0;
+
+ var index;
+ if (fromIndex >= 0)
+ index = fromIndex;
+ else
+ index = length + fromIndex;
+
+ if (index < 0)
+ index = 0;
+
+ var currentElement;
+ for (; index < length; ++index) {
+ currentElement = array[index];
+ // Use SameValueZero comparison, rather than just StrictEquals.
+ if (searchElement === currentElement || (searchElement !== searchElement && currentElement !== currentElement))
+ return true;
+ }
+ return false;
+}
</ins></span></pre></div>
<a id="trunkSourceJavaScriptCoreruntimeArrayPrototypecpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/runtime/ArrayPrototype.cpp (181870 => 181871)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/runtime/ArrayPrototype.cpp 2015-03-23 21:32:38 UTC (rev 181870)
+++ trunk/Source/JavaScriptCore/runtime/ArrayPrototype.cpp 2015-03-23 21:37:53 UTC (rev 181871)
</span><span class="lines">@@ -117,6 +117,7 @@
</span><span class="cx"> keys arrayProtoFuncKeys DontEnum|Function 0
</span><span class="cx"> find arrayProtoFuncFind DontEnum|Function 1
</span><span class="cx"> findIndex arrayProtoFuncFindIndex DontEnum|Function 1
</span><ins>+ includes arrayProtoFuncIncludes DontEnum|Function 1
</ins><span class="cx"> @end
</span><span class="cx"> */
</span><span class="cx">
</span></span></pre>
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