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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/181503">181503</a></dd>
<dt>Author</dt> <dd>rniwa@webkit.org</dd>
<dt>Date</dt> <dd>2015-03-14 21:58:55 -0700 (Sat, 14 Mar 2015)</dd>
</dl>
<h3>Log Message</h3>
<pre>parseClass should popScope after pushScope
https://bugs.webkit.org/show_bug.cgi?id=142689
Reviewed by Benjamin Poulain.
Source/JavaScriptCore:
Pop the parser scope as needed.
* parser/Parser.cpp:
(JSC::Parser<LexerType>::parseClass):
LayoutTests:
Added a regression test for the test case that caught this bug.
* TestExpectations: Skipped the test since ES6 class syntax isn't enabled by default.
* js/class-syntax-scoping-expected.txt: Added.
* js/class-syntax-scoping.html: Added.
* js/script-tests/class-syntax-scoping.js: Added.
(test):</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkLayoutTestsChangeLog">trunk/LayoutTests/ChangeLog</a></li>
<li><a href="#trunkLayoutTestsTestExpectations">trunk/LayoutTests/TestExpectations</a></li>
<li><a href="#trunkSourceJavaScriptCoreChangeLog">trunk/Source/JavaScriptCore/ChangeLog</a></li>
<li><a href="#trunkSourceJavaScriptCoreparserParsercpp">trunk/Source/JavaScriptCore/parser/Parser.cpp</a></li>
</ul>
<h3>Added Paths</h3>
<ul>
<li><a href="#trunkLayoutTestsjsclasssyntaxscopingexpectedtxt">trunk/LayoutTests/js/class-syntax-scoping-expected.txt</a></li>
<li><a href="#trunkLayoutTestsjsclasssyntaxscopinghtml">trunk/LayoutTests/js/class-syntax-scoping.html</a></li>
<li><a href="#trunkLayoutTestsjsscripttestsclasssyntaxscopingjs">trunk/LayoutTests/js/script-tests/class-syntax-scoping.js</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkLayoutTestsChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/ChangeLog (181502 => 181503)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/ChangeLog 2015-03-14 22:54:46 UTC (rev 181502)
+++ trunk/LayoutTests/ChangeLog 2015-03-15 04:58:55 UTC (rev 181503)
</span><span class="lines">@@ -1,3 +1,18 @@
</span><ins>+2015-03-14 Ryosuke Niwa <rniwa@webkit.org>
+
+ parseClass should popScope after pushScope
+ https://bugs.webkit.org/show_bug.cgi?id=142689
+
+ Reviewed by Benjamin Poulain.
+
+ Added a regression test for the test case that caught this bug.
+
+ * TestExpectations: Skipped the test since ES6 class syntax isn't enabled by default.
+ * js/class-syntax-scoping-expected.txt: Added.
+ * js/class-syntax-scoping.html: Added.
+ * js/script-tests/class-syntax-scoping.js: Added.
+ (test):
+
</ins><span class="cx"> 2015-03-14 Michael Saboff <msaboff@apple.com>
</span><span class="cx">
</span><span class="cx"> ES6: Add binary and octal literal support
</span></span></pre></div>
<a id="trunkLayoutTestsTestExpectations"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/TestExpectations (181502 => 181503)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/TestExpectations 2015-03-14 22:54:46 UTC (rev 181502)
+++ trunk/LayoutTests/TestExpectations 2015-03-15 04:58:55 UTC (rev 181503)
</span><span class="lines">@@ -71,6 +71,7 @@
</span><span class="cx"> webkit.org/b/140491 js/class-syntax-declaration.html [ Failure ]
</span><span class="cx"> webkit.org/b/140491 js/class-syntax-expression.html [ Failure ]
</span><span class="cx"> webkit.org/b/140491 js/class-syntax-extends.html [ Failure ]
</span><ins>+webkit.org/b/140491 js/class-syntax-scoping.html [ Failure ]
</ins><span class="cx"> webkit.org/b/140491 js/class-syntax-super.html [ Failure ]
</span><span class="cx">
</span><span class="cx"> # This test verifies dynamic manipulation of the mroot and msqrt elements.
</span></span></pre></div>
<a id="trunkLayoutTestsjsclasssyntaxscopingexpectedtxt"></a>
<div class="addfile"><h4>Added: trunk/LayoutTests/js/class-syntax-scoping-expected.txt (0 => 181503)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/js/class-syntax-scoping-expected.txt (rev 0)
+++ trunk/LayoutTests/js/class-syntax-scoping-expected.txt 2015-03-15 04:58:55 UTC (rev 181503)
</span><span class="lines">@@ -0,0 +1,10 @@
</span><ins>+Tests for scoping of variables in ES6 class syntax
+
+On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
+
+
+PASS test() is "PASS"
+PASS successfullyParsed is true
+
+TEST COMPLETE
+
</ins></span></pre></div>
<a id="trunkLayoutTestsjsclasssyntaxscopinghtml"></a>
<div class="addfile"><h4>Added: trunk/LayoutTests/js/class-syntax-scoping.html (0 => 181503)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/js/class-syntax-scoping.html (rev 0)
+++ trunk/LayoutTests/js/class-syntax-scoping.html 2015-03-15 04:58:55 UTC (rev 181503)
</span><span class="lines">@@ -0,0 +1,8 @@
</span><ins>+<!DOCTYPE html>
+<html>
+<body>
+<script src="../resources/js-test-pre.js"></script>
+<script src="script-tests/class-syntax-scoping.js"></script>
+<script src="../resources/js-test-post.js"></script>
+</body>
+</html>
</ins></span></pre></div>
<a id="trunkLayoutTestsjsscripttestsclasssyntaxscopingjs"></a>
<div class="addfile"><h4>Added: trunk/LayoutTests/js/script-tests/class-syntax-scoping.js (0 => 181503)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/js/script-tests/class-syntax-scoping.js (rev 0)
+++ trunk/LayoutTests/js/script-tests/class-syntax-scoping.js 2015-03-15 04:58:55 UTC (rev 181503)
</span><span class="lines">@@ -0,0 +1,16 @@
</span><ins>+//@ skip
+
+description('Tests for scoping of variables in ES6 class syntax');
+
+var local = "FAIL";
+function test() {
+ var local = "PASS";
+ class A {
+ getLocal(x) { return local; }
+ };
+ return new A().getLocal();
+}
+
+shouldBe('test()', '"PASS"');
+
+var successfullyParsed = true;
</ins></span></pre></div>
<a id="trunkSourceJavaScriptCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/ChangeLog (181502 => 181503)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/ChangeLog 2015-03-14 22:54:46 UTC (rev 181502)
+++ trunk/Source/JavaScriptCore/ChangeLog 2015-03-15 04:58:55 UTC (rev 181503)
</span><span class="lines">@@ -1,3 +1,15 @@
</span><ins>+2015-03-14 Ryosuke Niwa <rniwa@webkit.org>
+
+ parseClass should popScope after pushScope
+ https://bugs.webkit.org/show_bug.cgi?id=142689
+
+ Reviewed by Benjamin Poulain.
+
+ Pop the parser scope as needed.
+
+ * parser/Parser.cpp:
+ (JSC::Parser<LexerType>::parseClass):
+
</ins><span class="cx"> 2015-03-14 Dean Jackson <dino@apple.com>
</span><span class="cx">
</span><span class="cx"> Feature flag for Animations Level 2
</span></span></pre></div>
<a id="trunkSourceJavaScriptCoreparserParsercpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/parser/Parser.cpp (181502 => 181503)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/parser/Parser.cpp 2015-03-14 22:54:46 UTC (rev 181502)
+++ trunk/Source/JavaScriptCore/parser/Parser.cpp 2015-03-15 04:58:55 UTC (rev 181503)
</span><span class="lines">@@ -1552,6 +1552,7 @@
</span><span class="cx"> // FIXME: Create a Miranda function instead.
</span><span class="cx"> semanticFailIfFalse(constructor, "Class declaration without a constructor is not supported yet");
</span><span class="cx">
</span><ins>+ failIfFalse(popScope(classScope, TreeBuilder::NeedsFreeVariableInfo), "Parser error");
</ins><span class="cx"> consumeOrFail(CLOSEBRACE, "Expected a closing '}' after a class body");
</span><span class="cx">
</span><span class="cx"> return context.createClassExpr(location, *className, constructor, parentClass, instanceMethods, staticMethods);
</span></span></pre>
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