424ef009a5
Unexpectedly, websites depend on doing feature testing with RegExp.prototype.sticky and browser testing with RegExp.prototype.toString(). ES2015 newly throws exceptions for both of these. In order to enable shipping new ES2015 semantics, this patch puts in narrow workarounds for those two cases, keeping their old behavior. UseCounters are added for how often those particular cases come up, so we can see if it can be deprecated. This reland replaces problematic legacy const usage with var, to avoid issues with nosnap builds. R=yangguo CC=bmeurer BUG=v8:4637,v8:4617 LOG=Y CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng;tryserver.blink:linux_blink_rel Review URL: https://codereview.chromium.org/1545633002 Cr-Commit-Position: refs/heads/master@{#33002}
62 lines
3.2 KiB
Plaintext
62 lines
3.2 KiB
Plaintext
# Copyright 2013 the V8 project authors. All rights reserved.
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# Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
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# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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# DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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# ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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This page tests toString conversion of RegExp objects, particularly wrt to '/' characters and RegExp.prototype.
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On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
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PASS RegExp('/').source is "\\/"
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PASS RegExp('').source is "(?:)"
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FAIL RegExp.prototype.source should be (?:). Threw exception TypeError: RegExp.prototype.source getter called on non-RegExp object
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PASS RegExp('/').toString() is "/\\//"
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PASS RegExp('').toString() is "/(?:)/"
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PASS RegExp.prototype.toString() is "/(?:)/"
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PASS testForwardSlash("^/$", "/"); is true
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PASS testForwardSlash("^/$", "/"); is true
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PASS testForwardSlash("^\/$", "/"); is true
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PASS testForwardSlash("^\\/$", "\/"); is true
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PASS testForwardSlash("^\\\/$", "\/"); is true
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FAIL testForwardSlash("^\\\\/$", "\\/"); should be true. Threw exception SyntaxError: Invalid regular expression flags
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FAIL testForwardSlash("^\\\\\/$", "\\/"); should be true. Threw exception SyntaxError: Invalid regular expression flags
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PASS testForwardSlash("x/x/x", "x\/x\/x"); is true
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PASS testForwardSlash("x\/x/x", "x\/x\/x"); is true
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PASS testForwardSlash("x/x\/x", "x\/x\/x"); is true
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PASS testForwardSlash("x\/x\/x", "x\/x\/x"); is true
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FAIL testLineTerminator("\n"); should be false. Was true.
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PASS testLineTerminator("\\n"); is false
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FAIL testLineTerminator("\r"); should be false. Was true.
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PASS testLineTerminator("\\r"); is false
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FAIL testLineTerminator("\u2028"); should be false. Was true.
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PASS testLineTerminator("\\u2028"); is false
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FAIL testLineTerminator("\u2029"); should be false. Was true.
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PASS testLineTerminator("\\u2029"); is false
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FAIL RegExp('[/]').source should be [/]. Was [\/].
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PASS RegExp('\\[/]').source is '\\[\\/]'
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PASS var o = new RegExp(); o.toString() === '/'+o.source+'/' && eval(o.toString()+'.exec(String())') is [""]
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PASS successfullyParsed is true
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TEST COMPLETE
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