v8/test/mjsunit/regexp-compile.js
littledan 972e852248 Fix RegExp.prototype.compile error case
If the RegExp doesn't parse, then ES2015 specifies that
RegExp.prototype.compile does not mutate it. This patch changes
our RegExp implementation to follow that logic.

R=yangguo

Review-Url: https://codereview.chromium.org/1972093003
Cr-Commit-Position: refs/heads/master@{#36268}
2016-05-17 06:19:36 +00:00

49 lines
2.1 KiB
JavaScript

// 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 we don't cache the result of a regexp match across a
// compile event.
var re = /x/;
assertEquals("a.yb", "axyb".replace(re, "."));
re.compile("y");
assertEquals("ax.b", "axyb".replace(re, "."));
re.compile("(x)");
assertEquals(["x", "x"], re.exec("axyb"));
re.compile("(y)");
assertEquals(["y", "y"], re.exec("axyb"));
assertEquals(2, re.compile.length);
// If RegExp parsing fails, the RegExp is not modified
var r = /./; try { r.compile('? invalid'); } catch(err){}
assertEquals("/./", r.toString());