Bug 152710 - Subclassing builtins should create a new structure and cache it rather than transitioning.
Summary: Subclassing builtins should create a new structure and cache it rather than t...
Status: RESOLVED DUPLICATE of bug 152942
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: 2016-01-04 12:59 PST by Keith Miller
Modified: 2016-01-27 14:37 PST (History)
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Description Keith Miller 2016-01-04 12:59:41 PST 
We should not transition the structure each time we want to make a structure with a non-BuiltinConstructor.prototype prototype. Instead we should make a new structure and cache it for next time.
Comment 1 Keith Miller 2016-01-27 14:37:13 PST 

*** This bug has been marked as a duplicate of bug 152942 ***