Bug 41937

Summary: JavaScriptCore C API should provide a way to query property attributes
Product: WebKit Reporter: Kent Hansen <kent.hansen>
Component: JavaScriptCoreAssignee: Nobody <webkit-unassigned>
Status: NEW ---    
Severity: Normal CC: barraclough, cmarcelo
Priority: P2    
Version: 528+ (Nightly build)   
Hardware: PC   
OS: All   

Description Kent Hansen 2010-07-09 00:53:25 PDT 
It's possible to pass attributes to JSObjectSetProperty(), but there's no way to query a property's attributes.

The work-around is to call the original value of Object.getOwnPropertyDescriptor and query the properties of the resulting object (e.g. enumerable:false --> kJSPropertyAttributeDontEnum), but that's not so nice.
Comment 1 Kent Hansen 2010-07-09 00:58:50 PDT 
This relates to https://bugs.webkit.org/show_bug.cgi?id=41769
Comment 2 Gavin Barraclough 2012-03-13 13:09:02 PDT 
The JSC API should probably offer a low-level API of reflection traps matching set of 9 traps in 8.12 - e.g. we should have something matching [[GetOwnProperty]], which would return a descriptor.  We may also want to consider any new reflection APIs being introduced in ES6 (e.g. direct proxies) in designing any API here.