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Marja Hölttä f489f7ab44 [parser] Skipping inner funcs: collect data needed for allocation, not the allocation result. 
This pretty much rewrites the preparsed scope data collection. We used to store
the allocation result, but it's faster to just store the raw data which is
needed for deciding it later. (This way we don't need to run the allocation
algorithm for just getting this data.)

For each variable: is_used, maybe_assigned,
has_forced_context_allocation, and for each scope:
inner_scope_calls_eval_.

In addition, this CL moves data handling out of Scope and into
PreParsedScopeData where it belongs and simplifies the API for
PreParsedScopeData.

BUG=v8:5516
R=vogelheim@chromium.org

Change-Id: Ia5a4fa52f585cd4f483ce9a92f2dd7d9754f34ed
Reviewed-on: https://chromium-review.googlesource.com/451273
Commit-Queue: Marja Hölttä <marja@chromium.org>
Reviewed-by: Daniel Vogelheim <vogelheim@chromium.org>
Cr-Commit-Position: refs/heads/master@{#43641}
2017-03-07 14:23:14 +00:00
benchmarks Revert "Refactoring: Make gtest testsuite the default." 2014-09-02 09:17:26 +00:00
build_overrides Remove build_overrides/v8.gni. 2017-01-26 20:18:58 +00:00
docs [Docs] Removed unused docs because they are moved to GitHub 2015-11-19 10:23:30 +00:00
gni Make sure a pure list of headers is never turned into a static library 2017-02-13 08:43:43 +00:00
gypfiles [build] Fix gyp files for building inspector 2017-03-02 09:55:56 +00:00
include Make idle tasks optional in the default platform. 2017-03-07 13:37:41 +00:00
infra Revert "[swarming] Dogfood exparchive feature" 2017-02-17 10:18:41 +00:00
samples Reland of land "Turn libbase into a component" (patchset #1 id:1 of https://codereview.chromium.org/2396933002/ ) 2016-10-07 07:56:52 +00:00
src [parser] Skipping inner funcs: collect data needed for allocation, not the allocation result. 2017-03-07 14:23:14 +00:00
test [parser] Skipping inner funcs: collect data needed for allocation, not the allocation result. 2017-03-07 14:23:14 +00:00
testing Use GTEST_LANG_CXX11 in V8 2016-07-25 13:06:42 +00:00
third_party Adapt String::find method via StringUtil adapter. 2017-02-03 22:17:24 +00:00
tools [profiler] Web UI - add time-as-text description to the interval highlight. 2017-03-07 13:29:43 +00:00
.clang-format [clang-format] Don't derive pointer alignment 2017-01-17 09:28:19 +00:00
.gitignore [wasm] include JS conformance tests in Wasm mjsunit tests 2017-02-14 18:25:32 +00:00
.gn [build] Roll build a3b623a:11a223f 2016-11-29 11:17:15 +00:00
.ycm_extra_conf.py Use C++11 / gnu++11, not 0x 2016-03-22 15:24:43 +00:00
AUTHORS Migrate Number constants and undefined to C++ 2017-02-27 08:20:45 +00:00
BUILD.gn Add inspector headers to top-level v8 target if inspector is enabled. 2017-03-07 10:28:00 +00:00
ChangeLog [Release] Update ChangeLog file 2016-02-17 21:29:09 +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 Use v8-reviews@ for review mail, so v8-dev@ is free for dev discussions 2015-09-09 08:14:11 +00:00
DEPS Update V8 DEPS. 2017-03-07 04:25:57 +00:00
LICENSE Updates to the license information of third party components. 2015-06-16 12:37:50 +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
Makefile Make enabling of CSA verifier a build-time flag 2017-01-27 11:32:27 +00:00
Makefile.android [build] Fix d8-for-Android builds 2016-05-20 12:10:45 +00:00
OWNERS Make clemensh owner (wasm, asmjs and general) 2017-01-13 10:20:44 +00:00
PRESUBMIT.py [test] Do status-file presubmit check for any test file changes. 2017-02-17 10:14:02 +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 Use clang for snapshot_toolchain by default, except on ChromeOS. 2016-08-23 14:04:27 +00:00
WATCHLISTS [inspector] added devtools-reviews@chromium.org in WATCHLISTS for inspector 2016-09-29 15:16:54 +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.