Revision: 10628
Author: [email protected]
Date: Wed Feb 8 00:40:11 2012
Log: Fix handling of 'c: if (0) break c; else ()' where a parser
optimization
leaves a trailing ";" after removing the break.
Review URL: https://chromiumcodereview.appspot.com/9159043
http://code.google.com/p/v8/source/detail?r=10628
Added:
/branches/bleeding_edge/test/mjsunit/regress/regress-1924.js
Modified:
/branches/bleeding_edge/src/parser.cc
=======================================
--- /dev/null
+++ /branches/bleeding_edge/test/mjsunit/regress/regress-1924.js Wed Feb 8
00:40:11 2012
@@ -0,0 +1,42 @@
+// Copyright 2012 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following
+// disclaimer in the documentation and/or other materials provided
+// with the distribution.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived
+// from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// For http://code.google.com/p/v8/issues/detail?id=1924
+
+a: break a;
+a: b: break a;
+a: b: break b;
+assertThrows("a: break a a", SyntaxError)
+assertThrows("a: break a 1", SyntaxError)
+assertThrows("a: break a ''", SyntaxError)
+assertThrows("a: break a var b", SyntaxError)
+assertThrows("a: break a {}", SyntaxError)
+
+a: if (0) break a;
+b: if (0) {break b;} else {}
+c: if (0) break c; else {}
+d: if (0) break d; else break d;
=======================================
--- /branches/bleeding_edge/src/parser.cc Thu Jan 26 13:47:57 2012
+++ /branches/bleeding_edge/src/parser.cc Wed Feb 8 00:40:11 2012
@@ -2128,6 +2128,7 @@
// Parse labeled break statements that target themselves into
// empty statements, e.g. 'l1: l2: l3: break l2;'
if (!label.is_null() && ContainsLabel(labels, label)) {
+ ExpectSemicolon(CHECK_OK);
return EmptyStatement();
}
BreakableStatement* target = NULL;
--
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