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Yang Guo 4a96850aeb Revert "inspector: find magic comment using V8 scanner"
This reverts commit 1b3b808a54.

Reason for revert: crbug/879988

TBR=kozy@chromium.org

Original change's description:
> inspector: find magic comment using V8 scanner
>
> Inspector tries to provide sourceURL and sourceMappingURL for scripts
> with parser errors. Without this CL we convert source of each script
> to inspector string and search for magic comment there. Some web sites
> use pattern when they get some data from network and constantly try to
> parse this data as JSON, in this case we do a lot of useless work.
>
> So we can parse magic comments on V8 side only for compilation errors
> (excluding parse JSON errors), to do it we can reuse scanner by running
> it on each potential comment.
>
> R=​alph@chromium.org,verwaest@chromium.org,yangguo@chromium.org
>
> Bug: chromium:873865,v8:7731
> Cq-Include-Trybots: luci.chromium.try:linux_chromium_headless_rel;master.tryserver.blink:linux_trusty_blink_rel
> Change-Id: I77c270fd0e95cd7b2c9ee4b7f72ef344bc1fa104
> Reviewed-on: https://chromium-review.googlesource.com/1182446
> Reviewed-by: Toon Verwaest <verwaest@chromium.org>
> Reviewed-by: Alexei Filippov <alph@chromium.org>
> Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#55280}

TBR=alph@chromium.org,yangguo@chromium.org,kozyatinskiy@chromium.org,verwaest@chromium.org

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: chromium:873865, v8:7731, chromium:879988
Change-Id: Ia7ac766e19f9b58562d9430811f10b25c4556a46
Cq-Include-Trybots: luci.chromium.try:linux_chromium_headless_rel;master.tryserver.blink:linux_trusty_blink_rel
Reviewed-on: https://chromium-review.googlesource.com/1202583
Commit-Queue: Yang Guo <yangguo@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55594}
2018-09-03 18:42:28 +00:00
benchmarks Fix common misspellings 2017-08-02 09:35:28 +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 Disable multi_snapshots by default 2018-06-28 10:02:12 +00:00
include Add AsyncIterator to well-known symbols. 2018-08-31 19:31:58 +00:00
infra [sample] use v8_monolith target to simplify hello world sample 2018-09-03 05:54:26 +00:00
samples Add a sample that uses the JS API to create wasm 2018-06-07 23:43:38 +00:00
src Revert "inspector: find magic comment using V8 scanner" 2018-09-03 18:42:28 +00:00
test Revert "inspector: find magic comment using V8 scanner" 2018-09-03 18:42:28 +00:00
testing Remove dummy files created for rolling googletest. 2018-03-27 05:55:56 +00:00
third_party Introduce 'kLengthString' in torque code 2018-09-03 06:36:42 +00:00
tools [node] no longer copy jinja and markupsafe 2018-09-03 05:49:51 +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
.git-blame-ignore-revs [build] Add DEPS formatting to hyper-blame 2017-10-09 14:08:45 +00:00
.gitattributes Disable line ending modifications by git in .png files 2018-06-27 15:39:07 +00:00
.gitignore stop depsing in gyp 2018-09-03 14:13:18 +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 MIPS: Fix DCHECK failure in v8::internal::Assembler::seb() 2018-08-06 20:35:08 +00:00
BUILD.gn [embed handlers] Enable embedding of handlers by default 2018-09-03 10:31:16 +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 stop depsing in gyp 2018-09-03 14:13:18 +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 Update OWNERS files. 2018-07-17 07:56:16 +00:00
PRESUBMIT.py Add autoroller task account into bot whitelist for author check 2018-06-06 14:40:09 +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 MIPS[64]: Generate snapshots on MIPS big-endian targets 2017-11-24 19:00:32 +00:00
WATCHLISTS Make my watchlists easier to filter 2018-08-30 15:28:02 +00:00

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.