| commit | 98f819c3e0c92d54a306cdacadda73cf96d21b52 | [log] [tgz] |
|---|---|---|
| author | littledan <littledan@chromium.org> | Tue Dec 22 06:35:22 2015 |
| committer | Commit bot <commit-bot@chromium.org> | Tue Dec 22 06:36:17 2015 |
| tree | 07e57bcceb3ec83cc079a8ff15cbfe643cf108dc | |
| parent | 4acca53e62cdfe6f3c495c87ca7d3c8fe1059f01 [diff] |
Add web compat workarounds for ES2015 RegExp semantics 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. R=yangguo 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/1543723002 Cr-Commit-Position: refs/heads/master@{#32997}
V8 is Google's open source JavaScript engine.
V8 implements ECMAScript as specified in ECMA-262.
V8 is written in C++ and is used in Google Chrome, the open source browser from Google.
V8 can run standalone, or can be embedded into any C++ application.
V8 Project page: https://github.com/v8/v8/wiki
Checkout depot tools, and run
fetch v8
This will checkout V8 into the directory v8 and fetch all of its dependencies. To stay up to date, run
git pull origin
gclient sync
For fetching all branches, add the following into your remote configuration in .git/config:
fetch = +refs/branch-heads/*:refs/remotes/branch-heads/*
fetch = +refs/tags/*:refs/tags/*
Please follow the instructions mentioned on the V8 wiki.