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adamk 75f2d65f00 Don't treat catch scopes as possibly-shadowing for sloppy eval 
Scope analysis is over-conservative when treating variable resolutions
as possibly-shadowed by a sloppy eval. In the attached bug, this comes
into play since catch scopes have different behavior with respect to
the "calls eval" in eager vs lazy compilation (in the latter, they
are never marked as "calls eval" because CatchContexts don't have
an associated ScopeInfo).

This patch changes the scope-type check to also eliminate a few other
cases where shadowing isn't possible, such as non-declaration block scopes.

BUG=chromium:608279
LOG=n

Review-Url: https://codereview.chromium.org/1950803002
Cr-Commit-Position: refs/heads/master@{#36046}
2016-05-04 21:36:13 +00:00
benchmarks Revert "Refactoring: Make gtest testsuite the default." 2014-09-02 09:17:26 +00:00
build_overrides [gn] Initialize gn for stand-alone v8 2016-05-02 15:09:18 +00:00
docs [Docs] Removed unused docs because they are moved to GitHub 2015-11-19 10:23:30 +00:00
gypfiles Add missing fpu mode to mipsel r1 toolchain 2016-05-02 12:32:49 +00:00
include Sampling heap profiler: Force Full GC before retrieving the profile. 2016-05-04 19:16:27 +00:00
infra [CQ] Raise blink trybot percentage to 100 2016-04-29 09:05:06 +00:00
samples [gn] Move build to gypfiles 2016-04-29 10:11:11 +00:00
src Don't treat catch scopes as possibly-shadowing for sloppy eval 2016-05-04 21:36:13 +00:00
test Don't treat catch scopes as possibly-shadowing for sloppy eval 2016-05-04 21:36:13 +00:00
testing Converted V8 CQ config to proto-format 2015-05-28 15:02:53 +00:00
third_party/binutils [gn] Move build to gypfiles 2016-04-29 10:11:11 +00:00
tools [Interpreter] Add test expectations for layout tests 2016-05-02 14:51:32 +00:00
.clang-format [formatting] Remove the formatting requirement for 2 empty lines between declarations. 2016-01-25 09:50:17 +00:00
.gitignore Add v8.ignition_dispatches_table.json to .gitignore 2016-05-03 18:12:11 +00:00
.gn [gn] Initialize gn for stand-alone v8 2016-05-02 15:09:18 +00:00
.ycm_extra_conf.py Use C++11 / gnu++11, not 0x 2016-03-22 15:24:43 +00:00
AUTHORS Fix testing of the VEX.L (128/256-bit) flag in the x64 disassembler 2016-04-15 06:24:29 +00:00
BUILD.gn Adding default_exe_manifest to two binaries 2016-05-02 16:47:35 +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. 2016-05-04 03:22:29 +00:00
LICENSE Updates to the license information of third party components. 2015-06-16 12:37:50 +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 [build] Fix Makefile based build. 2016-05-02 09:42:11 +00:00
Makefile.android [gn] Move build to gypfiles 2016-04-29 10:11:11 +00:00
Makefile.nacl [gn] Move build to gypfiles 2016-04-29 10:11:11 +00:00
OWNERS [owners] adding more toplevel owners (but mainly me) 2016-03-16 15:54:42 +00:00
PRESUBMIT.py [cq] Automatically use the same bots for git cl try. 2016-01-14 11:15:16 +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 Revert of Use GCC for snapshot_toolchain when is_clang=false. (patchset #1 id:1 of https://codereview.chromium.org/1809643003/ ) 2016-04-11 08:30:22 +00:00
WATCHLISTS [build] Prepare moving v8.gyp to src/ 2016-04-25 12:20:24 +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.