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Adam Klein 38b1807a3f [parser] Only create scopes for for-loops containing lexical declarations 
This patch removes unnecessary scope creation for C-style, for-in, and
for-of loops containing var declarations. Only loops with LET or CONST
declarations require additional scoping up-front.

After this patch lands, I intend to apply this simplification (as well
as that from fa15ba5a7b) to for-await loops.

Bug: v8:6724
Change-Id: I9962432d1e059d8eefb577e7b512bc2321a03140
Reviewed-on: https://chromium-review.googlesource.com/619987
Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47436}
2017-08-18 16:24:04 +00:00
benchmarks Fix common misspellings 2017-08-02 09:35:28 +00:00
build_overrides Remove build_override for macOS min SDK and deployment target. 2017-07-14 18:24:44 +00:00
docs
gni add gn jumbo build support 2017-08-09 09:05:29 +00:00
gypfiles Fix common misspellings 2017-08-02 09:35:28 +00:00
include [modules, api] Restrict GetModuleNamespace to evaluated modules. 2017-08-16 08:30:48 +00:00
infra [build] Add MB config for win64 asan bots 2017-08-16 14:01:31 +00:00
samples Fix common misspellings 2017-08-02 09:35:28 +00:00
src [parser] Only create scopes for for-loops containing lexical declarations 2017-08-18 16:24:04 +00:00
test [pattern-rewriter] Handle already-rewritten RewritableExpressions as before 2017-08-18 16:16:24 +00:00
testing
third_party Remove myself from non-toplevel owners files 2017-06-28 10:00:48 +00:00
tools [fullcodegen] Delete FullCodegen. 2017-08-11 11:50:05 +00:00
.clang-format [clang-format] Don't derive pointer alignment 2017-01-17 09:28:19 +00:00
.editorconfig Add .editorconfig 2017-07-28 13:39:24 +00:00
.gitignore add .vscode to .gitignore 2017-08-14 23:18:09 +00:00
.gn For building v8 using gn on aix_ppc64, linux_s390x and linux_ppc64(both LE and BE). 2017-05-12 01:35:09 +00:00
.ycm_extra_conf.py
AUTHORS Update AUTHORS file for Facebook organization 2017-07-31 08:53:21 +00:00
BUILD.gn [builtins] Port Proxy has trap to CSA 2017-08-16 13:05:45 +00:00
ChangeLog
CODE_OF_CONDUCT.md
codereview.settings Make Gerrit the default code review for V8 2017-06-30 17:37:37 +00:00
DEPS Update V8 DEPS. 2017-08-18 03:48:29 +00:00
LICENSE
LICENSE.fdlibm
LICENSE.strongtalk
LICENSE.v8
LICENSE.valgrind
Makefile Remove x87 port 2017-07-18 18:20:40 +00:00
Makefile.android
OWNERS Add eholk and gdeepti to toplevel owners 2017-08-12 07:07:29 +00:00
PRESUBMIT.py [test] Automatically add a noi18n bot for changes affecting Intl 2017-06-06 13:01:14 +00:00
README.md
snapshot_toolchain.gni MIPS[64]: Add support for big endian build using GN 2017-06-02 15:02:18 +00:00
WATCHLISTS [V8Tracing] Add lpy@ and fmeawad@ into watchlist for tracing/. 2017-05-22 19:40:17 +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.