Bug 155592 - We should use watchpoints to make sure we don't have indexed properties for concat and splice
Summary: We should use watchpoints to make sure we don't have indexed properties for c...
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: JavaScriptCore (show other bugs)
Version: WebKit Nightly Build
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Nobody
URL:
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Reported: 2016-03-17 11:38 PDT by Keith Miller
Modified: 2016-03-17 11:38 PDT (History)
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Description Keith Miller 2016-03-17 11:38:40 PDT 
In the fast path of concat and splice we currently walk the prototype chain to ensure that there are no indexed properties on the prototype of our array. Instead we should put watchpoints on Array.prototype and Object.prototype.