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Adam Klein f5dca8a08c [ast] Slim down Block by one pointer, moving labels_ storage to subclass 
The vast majority of blocks we create in the parser have no associated
labels, so it seems silly to waste a pointer on labels_ for all such
blocks.

This is accomplished by delegating responsibility for labels storage to
each subclass of BreakableStatement, and then further-specializing Block
by creating a new subclass, LabeledBlock.

Bug: v8:6092
Change-Id: I88c824639254e5890b25a86cc156bfc4310bf2b1
Reviewed-on: https://chromium-review.googlesource.com/639063
Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47689}
2017-08-29 17:40:14 +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 [gyp] Disable compiler warning 2017-08-29 11:52:47 +00:00
include [snapshot] Make the API external reference table const. 2017-08-29 14:15:10 +00:00
infra [build] Add MB config for win64 asan bots 2017-08-16 14:01:31 +00:00
samples Pass Isolate pointer to String::Utf8Value/Value constructors 2017-08-28 18:17:08 +00:00
src [ast] Slim down Block by one pointer, moving labels_ storage to subclass 2017-08-29 17:40:14 +00:00
test [wasm] Fix throwing and catching exceptions 2017-08-29 16:58:54 +00:00
testing Use GTEST_LANG_CXX11 in V8 2016-07-25 13:06:42 +00:00
third_party Remove myself from non-toplevel owners files 2017-06-28 10:00:48 +00:00
tools Whitespace change to kick bots 2017-08-29 07:04:16 +00:00
.clang-format [clang-format] Don't derive pointer alignment 2017-01-17 09:28:19 +00:00
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.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 Pass Isolate pointer to String::Utf8Value/Value constructors 2017-08-28 18:17:08 +00:00
BUILD.gn Revert "[snapshot] Move builtins to dedicated snapshot area" 2017-08-28 15:26:08 +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. 2017-08-29 03:54:28 +00:00
LICENSE
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Makefile [heap] Port concurrent marking flag to GYP. 2017-08-23 15:26:43 +00:00
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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.