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Benedikt Meurer cde7a77e3a [inspector] Remove special wasm RemoteObject type.
Previously we had introduced a special `v8::internal::WasmValue` type
which we used to expose Wasm values to the Scope view in Chromium
DevTools. The problem however is that these values cannot be exposed to
JavaScript (and in particular not to Debug Evaluate), which means that
particularly for v128 and i64 we have inconsistent representations
across the various parts of DevTools.

This change removes the `wasm` type from the RemoteObject and all the
adjacent logic, and paves the way for a uniform representation of Wasm
values throughout DevTools. For i64 we will simply use BigInt
consistently everywhere, and for i32, f32 and f64 we'll just use Number.
For externref we will represent the values as-is directly. For v128
values we currently use a Uint8Array, but will introduce a dedicated
WasmSimd128 class in a follow-up CL.

Bug: chromium:1071432
Fixed: chromium:1159402
Change-Id: I0671e5736c9c27d7ca376e23ed74f16d36e03c80
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2614428
Reviewed-by: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Auto-Submit: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71962}
2021-01-08 02:40:54 +00:00
build_overrides tracing: Enable using Perfetto client library from Chromium 2020-05-11 11:17:57 +00:00
custom_deps Use relative paths to OWNERS files 2019-08-12 13:52:52 +00:00
docs
gni cppgc: Fix cppgc build 2020-11-24 09:35:50 +00:00
include [inspector] Remove special wasm RemoteObject type. 2021-01-08 02:40:54 +00:00
infra Add official builder for mac-arm64 release and debug 2020-12-16 13:02:24 +00:00
samples [api] Use shorter 8::Local::As<*> casts in more places 2020-11-28 11:04:26 +00:00
src [inspector] Remove special wasm RemoteObject type. 2021-01-08 02:40:54 +00:00
test [inspector] Remove special wasm RemoteObject type. 2021-01-08 02:40:54 +00:00
testing build: Remove no-op calls to set_sources_assignment_filter 2020-10-08 14:44:01 +00:00
third_party Roll inspector_protocol to 94298cef795ec994106bdaff002c41182911b767 2020-12-09 11:17:27 +00:00
tools [inspector] Remove special wasm RemoteObject type. 2021-01-08 02:40:54 +00:00
.clang-format [clang-format] Don't derive pointer alignment 2017-01-17 09:28:19 +00:00
.clang-tidy
.editorconfig
.flake8 Add .flake8 to allow for python style checking. 2019-07-19 21:44:03 +00:00
.git-blame-ignore-revs [infra] Update .git-blame-ignore-revs 2020-03-03 12:59:13 +00:00
.gitattributes .gitattributes: Mark minified emscripten js files as -diff 2018-09-19 16:27:10 +00:00
.gitignore [cleanup] Add .cache to .gitignore 2020-12-16 10:37:28 +00:00
.gn [build] Dynamically decide if to use system xcode 2019-07-29 08:20:24 +00:00
.vpython
.ycm_extra_conf.py Fix ycm config for headers without source 2019-12-09 11:59:21 +00:00
AUTHORS Remove duplicate AUTHORS entry 2020-12-08 13:49:34 +00:00
BUILD.gn Step 1 (of 3-ish): Basic ETW Instrumentation in V8 2021-01-05 20:11:03 +00:00
CODE_OF_CONDUCT.md
codereview.settings
COMMON_OWNERS Adding vahl@ to the common owners to be able to handle 2020-08-21 09:04:56 +00:00
DEPS Revert "Update V8 DEPS." 2021-01-07 09:24:56 +00:00
DIR_METADATA Add DIR_METADATA files to v8. 2020-10-20 22:12:28 +00:00
ENG_REVIEW_OWNERS
INFRA_OWNERS Add team members as owners 2020-08-18 08:29:04 +00:00
INTL_OWNERS add ftang as owner 2020-04-24 19:19:36 +00:00
LICENSE
LICENSE.fdlibm
LICENSE.strongtalk
LICENSE.v8 Add LICENSE.v8, LICENSE.strongtalk and LICENSE.valgrind to the v8 2011-02-03 07:10:06 +00:00
MIPS_OWNERS [mips] Request to be an owner of MIPS files 2020-11-23 09:43:49 +00:00
OWNERS Add DIR_METADATA files to v8. 2020-10-20 22:12:28 +00:00
PPC_OWNERS Adding myself to relevant OWNERS files. 2020-11-02 16:37:28 +00:00
PRESUBMIT.py [tools] Format JS files in system-analyzer/ if they're unformatted 2020-11-10 11:02:32 +00:00
README.md [docs] Change links from old wiki to v8.dev 2019-03-07 12:13:30 +00:00
S390_OWNERS Adding myself to relevant OWNERS files. 2020-11-02 16:37:28 +00:00
WATCHLISTS Stop watching for API changes in WATCHLISTS 2020-04-08 07:06:45 +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://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.