Reviewers: Mads Ager,
Description:
Fix bug in regexp exec with global regexps.
Please review this at http://codereview.chromium.org/2826020/show
Affected files:
M src/regexp.js
A test/mjsunit/regress/regress-45469.js
Index: src/regexp.js
diff --git a/src/regexp.js b/src/regexp.js
index
9367f15f91d88cd36ae6e83b43f1945061166ee5..79ac44bb0308ad60f8d122488a2a3ae6cd9ff682
100644
--- a/src/regexp.js
+++ b/src/regexp.js
@@ -197,6 +197,7 @@ function RegExpExec(string) {
%_ObjectEquals(cache.regExp, this) &&
%_ObjectEquals(cache.subject, string)) {
if (cache.answerSaved) {
+ if (this.global) this.lastIndex = 0;
return CloneRegExpResult(cache.answer);
} else {
saveAnswer = true;
Index: test/mjsunit/regress/regress-45469.js
diff --git a/test/mjsunit/regress/regress-45469.js
b/test/mjsunit/regress/regress-45469.js
new file mode 100644
index
0000000000000000000000000000000000000000..b695949ff58e60f58c5c7ec53b070cea85af0112
--- /dev/null
+++ b/test/mjsunit/regress/regress-45469.js
@@ -0,0 +1,46 @@
+// Copyright 2008 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.
+
+// Test that global regexps capture and fail in the correct cyclic way.
+
+var re = /x/g;
+
+for (var i = 0; i < 15; i++) {
+ assertEquals(i % 3, re.lastIndex, "preindex" + i);
+ var res = re.exec("xx");
+ assertEquals(i % 3 == 2 ? null : ["x"], res, "res" + i);
+}
+
+re = /x/g;
+
+for (var i = 0; i < 15; i++) {
+ assertEquals(i % 3, re.lastIndex, "testpreindex" + i);
+ var res = re.test("xx");
+ assertEquals(i % 3 != 2, res, "testres" + i);
+}
+
+
--
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