| commit | 2efc1381313248352630b05f6d48064badfe7671 | [log] [tgz] |
|---|---|---|
| author | cbruni <cbruni@chromium.org> | Wed Mar 23 08:26:35 2016 |
| committer | Commit bot <commit-bot@chromium.org> | Wed Mar 23 08:36:59 2016 |
| tree | 796a3930ef2d7a70a7c13e469e0bf6680f6c63d9 | |
| parent | 32a2ab0c724673961aa145ab63c79a29e6d28fa8 [diff] |
[proxies] use [[GetPrototypeOf]] trap in for-in key accumulation With the recent spec change removing the [[Enumerate]] internal method, we now have to walk the complete prototype chain. This implies that we call the [[GetPrototypeOf]] trap on proxies. As a secondary change we now trigger the [[GetOwnProperty]] trap for the for-in filter step to see whether the properties are still enumerable. Before we did this in the key-accumulation phase. This way we slightly reduce the number of traps invoked. Whilst this is not ideal, it comes closer to the Spec's example implementation. BUG=v8:1543, v8:4768 LOG=n Review URL: https://codereview.chromium.org/1748923003 Cr-Commit-Position: refs/heads/master@{#35017}
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
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/*
Please follow the instructions mentioned on the V8 wiki.