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Maya Lekova bfe134a7db Revert "[parser] Set all tokens to ILLEGAL on parser error" 
This reverts commit ea8aa6a7c7.

Reason for revert: Breaking V8 Win64 - debug build, see
https://ci.chromium.org/p/v8/builders/luci.v8.ci/V8%20Win64%20-%20debug/25531

Original change's description:
> [parser] Set all tokens to ILLEGAL on parser error
> 
> Otherwise already peeked tokens will possibly pass later checks causing us to
> parse more than necessary. Initially we held off on doing this since subsequent
> Consume calls would fail after previous checks succeeded; especially in the
> case of stack overflow. However, we've previously relaxed that DCHECK to also
> pass if the parser has an error.
> 
> Change-Id: I413dffd475982d07299a08270fa94fdc3858e883
> Reviewed-on: https://chromium-review.googlesource.com/c/1304313
> Reviewed-by: Marja Hölttä <marja@chromium.org>
> Commit-Queue: Toon Verwaest <verwaest@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#57054}

TBR=marja@chromium.org,verwaest@chromium.org

Change-Id: Ifddd3cefa3876ec03aa1c137dfa95da3d933532e
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/1304295
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57057}
2018-10-29 09:13:23 +00:00
benchmarks Reland: [builtins] Implement Array.prototype.slice in Torque 2018-10-19 21:27:19 +00:00
build_overrides [ndk] Change android ndk root for v8 2018-01-11 08:10:33 +00:00
custom_deps [build] Add common directory for custom deps 2018-06-08 19:23:02 +00:00
docs [Docs] Removed unused docs because they are moved to GitHub 2015-11-19 10:23:30 +00:00
gni [build] disable asan on Windows for Torque 2018-10-10 11:47:40 +00:00
include [ptr-compr] Move IsolateData from Heap to Isolate 2018-10-26 14:27:57 +00:00
infra [CQ] Remove linux-chromeos-rel from CQ experiment 2018-10-26 17:11:40 +00:00
samples Add a sample that uses the JS API to create wasm 2018-06-07 23:43:38 +00:00
src Revert "[parser] Set all tokens to ILLEGAL on parser error" 2018-10-29 09:13:23 +00:00
test [async] Add CallSite#getPromiseIndex() builtin. 2018-10-29 08:47:59 +00:00
testing Remove dummy files created for rolling googletest. 2018-03-27 05:55:56 +00:00
third_party [torque] Implement transient types and checking 2018-10-29 07:48:20 +00:00
tools [iwyu] Removed unneeded excludes 2018-10-29 08:55:46 +00:00
.clang-format [clang-format] Don't derive pointer alignment 2017-01-17 09:28:19 +00:00
.clang-tidy [tool] Remove unfixed clang-tidy warnings to ease use. 2018-10-26 07:40:32 +00:00
.editorconfig Add .editorconfig 2017-07-28 13:39:24 +00:00
.git-blame-ignore-revs [build] Add DEPS formatting to hyper-blame 2017-10-09 14:08:45 +00:00
.gitattributes .gitattributes: Mark minified emscripten js files as -diff 2018-09-19 16:27:10 +00:00
.gitignore Ignore .torquelint-cache 2018-10-24 10:24:11 +00:00
.gn [test] Remove obsolete test262 archive extract 2018-03-28 13:52:15 +00:00
.vpython [tools] Add VPython config for callstats.py 2018-08-14 10:15:46 +00:00
.ycm_extra_conf.py [ycm] Switch from gnu++11 to gnu++14 2017-11-27 07:48:21 +00:00
AUTHORS [typedarray] Use fast path for Float32Array.from(float_64_array) and similar 2018-10-26 09:47:46 +00:00
BUILD.gn [wasm] Refactor trap-handler to allow an extension to windows 2018-10-26 12:02:41 +00:00
ChangeLog [tools] Merge ChangeLog from latest release 2017-12-19 12:30:56 +00:00
CODE_OF_CONDUCT.md Explicitly state that the Chromium Code of Conduct also applies to V8 2016-03-02 09:51:24 +00:00
codereview.settings Make Gerrit the default code review for V8 2017-06-30 17:37:37 +00:00
DEPS Update V8 DEPS. 2018-10-29 03:25:53 +00:00
LICENSE Add antlr4 runtime library to support Torque 2018-04-10 10:01:01 +00:00
LICENSE.fdlibm Add LICENSE.fdlibm for all the fdlibm imported sources. 2016-06-09 07:17:03 +00:00
LICENSE.strongtalk Add LICENSE.v8, LICENSE.strongtalk and LICENSE.valgrind to the v8 2011-02-03 07:10:06 +00:00
LICENSE.v8 Add LICENSE.v8, LICENSE.strongtalk and LICENSE.valgrind to the v8 2011-02-03 07:10:06 +00:00
LICENSE.valgrind Add LICENSE.v8, LICENSE.strongtalk and LICENSE.valgrind to the v8 2011-02-03 07:10:06 +00:00
OWNERS Reduce wasm OWNERS to current team members 2018-10-15 14:47:49 +00:00
PRESUBMIT.py [tools] Move path-specific try-builders to the CQ config 2018-10-24 13:52:21 +00:00
README.md [Docs] Removed unused docs because they are moved to GitHub 2015-11-19 10:23:30 +00:00
snapshot_toolchain.gni Reland "Add Windows ARM64 ABI support to V8" 2018-10-24 19:46:36 +00:00
WATCHLISTS Add myself to the watch list. 2018-10-22 16:20:40 +00:00

README.md

V8 JavaScript Engine

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

Getting the Code

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/*

Contributing

Please follow the instructions mentioned on the V8 wiki.