7459d8cecb
Testing the promise status is not enough to ensure that resolve functions are called only once. This change adds a similar version of the [[AlreadyResolved]] slot to the Promise.all resolve element function, and also ensures that [[AlreadyResolved]] is respected in the Promise executor, and when resolving thenables. This means replacing PromiseReject() shortcuts with promiseCapability.reject(), which has an [[AlreadyResolved]] record in a context slot. Also ensures that changes to the list accumulator in Promise.all() is not observable via accessors installed in the Array prototype chain, using the same mechanism used in several Array methods. Fixes the following Test262 tests: - built-ins/Promise/all/call-resolve-element-items.js - built-ins/Promise/all/call-resolve-element.js - built-ins/Promise/all/call-resolve-element-after-return.js - built-ins/Promise/all/same-reject-function.js - built-ins/Promise/all/resolve-from-same-thenable.js - built-ins/Promise/all/resolve-before-loop-exit.js - built-ins/Promise/all/resolve-before-loop-exit-from-same.js - built-ins/Promise/exception-after-resolve-in-executor.js - built-ins/Promise/exception-after-resolve-in-thenable-job.js - built-ins/Promise/all/does-not-invoke-array-setters.js BUG=v8:4633 LOG=N R=littledan@chromium.org, cbruni@chromium.org Review URL: https://codereview.chromium.org/1534813005 Cr-Commit-Position: refs/heads/master@{#33163} |
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| benchmarks | ||
| build | ||
| docs | ||
| include | ||
| infra | ||
| samples | ||
| src | ||
| test | ||
| testing | ||
| third_party/binutils | ||
| tools | ||
| .clang-format | ||
| .gitignore | ||
| .ycm_extra_conf.py | ||
| AUTHORS | ||
| BUILD.gn | ||
| ChangeLog | ||
| codereview.settings | ||
| DEPS | ||
| LICENSE | ||
| LICENSE.strongtalk | ||
| LICENSE.v8 | ||
| LICENSE.valgrind | ||
| Makefile | ||
| Makefile.android | ||
| Makefile.nacl | ||
| OWNERS | ||
| PRESUBMIT.py | ||
| README.md | ||
| snapshot_toolchain.gni | ||
| WATCHLISTS | ||
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.