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Michael Lippautz 5c8295beea [heap] Do not assume non-empty TracedReference in marker 
Most paths filter out empty reference on cppgc::Visitor or
v8::JSVisitor level. For v8::TracedReference we may end up with empty
reference in case of ephemeron tracing which cannot perfom the null
checks on the outer visitor.

Bug: chromium:1315550, v8:12600
Change-Id: I5ebb466100a6f2cf25a75585fc2267a632497548
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3582124
Reviewed-by: Omer Katz <omerkatz@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79943}
2022-04-12 15:10:55 +00:00
.github [github] Close PRs created on the V8 GitHub mirror automatically 2021-01-12 08:39:59 +00:00
bazel [bazel] Add v8_enable_short_builtin_calls flag 2022-03-18 13:45:04 +00:00
build_overrides [build] Remove obsolete gn flag 2021-01-11 15:50:59 +00:00
custom_deps Use relative paths to OWNERS files 2019-08-12 13:52:52 +00:00
docs Add OWNERS for docs/ 2019-05-15 12:06:15 +00:00
gni Add new owner to branch cut artifact 2022-04-01 10:50:51 +00:00
include Add WebDriverBiDi serialization to CDP 2022-04-11 15:51:54 +00:00
infra [bots] Remove configs of deleted Py3 bots 2022-04-04 14:26:27 +00:00
samples [test] Add a unittest platform setup mixin 2022-04-06 13:07:43 +00:00
src [heap] Do not assume non-empty TracedReference in marker 2022-04-12 15:10:55 +00:00
test heap: Fix reporting of incremental and background scopes 2022-04-12 10:24:18 +00:00
testing [test][cleanup] Fix -Wshadow warnings in unittests 2021-09-27 08:59:01 +00:00
third_party Convert inspector_protocol/roll.py to python3 2022-03-24 18:07:17 +00:00
tools [tools] Add linux-perf helper scripts for chrome 2022-04-11 17:42:49 +00:00
.bazelrc [bazel] Use v8_enable_handle_zapping only in debug builds. 2022-01-11 11:32:39 +00:00
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.ycm_extra_conf.py [ycm] Fix python script 2021-07-29 09:48:32 +00:00
AUTHORS [wasm] Place spilled params as WasmCallDescriptor expects. 2022-04-06 08:59:53 +00:00
BUILD.bazel Reland "cppgc-js: Concurrently process v8::TracedReference" 2022-04-11 14:29:05 +00:00
BUILD.gn [ext-code-space] Enable the external code space on Android 2022-04-11 16:42:44 +00:00
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PPC_OWNERS Adding myself to relevant OWNERS files. 2020-11-02 16:37:28 +00:00
PRESUBMIT.py [infra] use format strings instead of .format 2022-03-15 11:31:40 +00:00
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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://v8.dev/docs

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 at v8.dev/docs/contribute.