ping. On Thu, Mar 5, 2009 at 2:44 PM, Zhe Su <james...@gmail.com> wrote:
> Hi, > I'm developing an application which uses webkit's JavaScriptCore and a > customized global object (by providing a special class when creating the > context). My customized global object provides some built-in properties that > can be accessed by javascript code. Now, I want to support a special > behavior: allows javascript code to override a built-in property of global > object by using variable declaraction statement. For example, assuming the > global object has a built-in property, named "foo", a "var foo;" statement > shall create a javascript variable, named "foo" and the original built-in > "foo" shall be overrid by this new javascript variable. But if there is no > "var foo;" statement, the built-in foo shall be able to get and set from > javascript code. > > Now the problem is, current JavaScriptCore's C API (especially those > HasProperty, GetProperty, SetProperty callbacks of a class definition) can't > distinguish variable delcaration statement and variable assigment statement. > I checked SpiderMonkey's API and found it can distinguish such things by > providing a flag when calling ResolveProperty callback. > > Do you have any idea on this issue? How can I implement such behavior based > on current API? > > Regards > James Su >
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