Bug 55537

Summary:	Functions claim to have 'callee' which they actually don't (and shouldn't)
Product:	WebKit	Reporter:	Mark S. Miller <erights>
Component:	JavaScriptCore	Assignee:	Nobody <webkit-unassigned>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	barraclough, erights
Priority:	P2
Version:	528+ (Nightly build)
Hardware:	All
OS:	All

Description Mark S. Miller 2011-03-01 17:42:10 PST

> function foo(){"use strict"}

> Object.getOwnPropertyNames(foo)
["arguments", "callee", "caller", "length", "name", "prototype"]

> Object.getOwnPropertyDescriptor(foo, 'callee')
undefined

> 'callee' in foo
false

> foo.hasOwnProperty('callee')
false

I suspect this may be due to a partial misreading of the ES5/strict poisoning rules, where we poison "callee" and "caller" on arguments, but poison "arguments" and "caller" on strict functions.

Comment 1 Gavin Barraclough 2011-06-07 18:55:22 PDT

Actually, this is a bug in all functions, not just strict ones.  Looks like a copy/paste typo.  Updating the bug name to reflect this.

Comment 2 Gavin Barraclough 2011-06-07 19:10:29 PDT

Fixed in r88315