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Daniel Clark 53cb6654ea [modules][api] Stop filtering import assertions based on list provided by the host 
The change https://chromium-review.googlesource.com/c/v8/v8/+/2572173
implemented HostGetSupportedImportAssertions [1] in a fairly literal
sense, where the host supplies a list of supported import assertions
and V8 filters the import assertions in a ModuleRequest and exposes
only supported assertions via its API surface.

However, we've decided that the interop guarantees provided
by doing the filtering in V8 are probably not worth the added
complexity. Thus, this change removes the filtering. Going forward,
hosts will be expected to ignore unknown asserions received from V8.

This is mostly a revert of
https://chromium-review.googlesource.com/c/v8/v8/+/2572173, with
v8::Isolate::CreateParams::supported_import_assertions being kept
for now (since we first have to delete the Blink code that sets it),
and a new comment in v8.h instructing hosts to ignore unknown
assertions.

[1] https://tc39.es/proposal-import-assertions/#sec-hostgetsupportedimportassertions

Bug: v8:10958
Change-Id: I7e8e2a7fbfe2d5bf891805cff6c3160d0e6825cd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2643563
Reviewed-by: Marja Hölttä <marja@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Commit-Queue: Dan Clark <daniec@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#72299}
2021-01-25 19:30:13 +00:00
.github [github] Close PRs created on the V8 GitHub mirror automatically 2021-01-12 08:39:59 +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 tracing: Initialize track events conditionally 2021-01-18 12:39:03 +00:00
include [modules][api] Stop filtering import assertions based on list provided by the host 2021-01-25 19:30:13 +00:00
infra Fix broken link to infra-side specifications 2021-01-25 15:21:23 +00:00
samples [api] Make ScriptOrigin take isolate as parameter 2021-01-14 23:51:04 +00:00
src [modules][api] Stop filtering import assertions based on list provided by the host 2021-01-25 19:30:13 +00:00
test [modules][api] Stop filtering import assertions based on list provided by the host 2021-01-25 19:30:13 +00:00
testing build: Remove no-op calls to set_sources_assignment_filter 2020-10-08 14:44:01 +00:00
third_party Remove tebbi from OWNERS and TODOs 2021-01-21 13:23:00 +00:00
tools [Py3] fix py3 issue in tools 2021-01-25 15:33:53 +00:00
.clang-format [clang-format] Don't derive pointer alignment 2017-01-17 09:28:19 +00:00
.clang-tidy [tool] Remove unfixed clang-tidy warnings to ease use. 2018-10-26 07:40:32 +00:00
.editorconfig Add .editorconfig 2017-07-28 13:39:24 +00:00
.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 [build] Remove legacy binutils 2021-01-08 12:33:31 +00:00
.gn [build] Dynamically decide if to use system xcode 2019-07-29 08:20:24 +00:00
.vpython [tools] Implement confidence-based number of runs 2019-05-09 09:42:28 +00:00
.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 [build] Introduce gn arg to disable WebAssembly 2021-01-25 16:59:53 +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
COMMON_OWNERS Remove tebbi from OWNERS and TODOs 2021-01-21 13:23:00 +00:00
DEPS Update V8 DEPS. 2021-01-25 07:44:25 +00:00
DIR_METADATA Add DIR_METADATA files to v8. 2020-10-20 22:12:28 +00:00
ENG_REVIEW_OWNERS Add eng review owners as escalation path 2019-05-15 19:12:10 +00:00
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 [wasm] Draft version of C/C++ Wasm API 2019-04-17 16:00:26 +00:00
LICENSE.fdlibm Add LICENSE.fdlibm for all the fdlibm imported sources. 2016-06-09 07:17:03 +00:00
LICENSE.strongtalk
LICENSE.v8
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 Add a watchlist for ieee754.(cc|h) changes. 2021-01-11 18:10:19 +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://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.