[Webkit-unassigned] [Bug 18056] Cannot convert DOM exception prototype object to a string

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=18056





--- Comment #4 from Cameron McCormack <cam at mcc.id.au>  2009-09-04 00:56:25 PDT ---
(In reply to comment #3)
> I don't understand where you're putting that code.  Can you give an example of
> the generated output so that we know this looks right?

Sorry, I probably didn't include enough context in the diff.  Here's an example
from JSDOMCoreException.cpp:

JSValue JSC_HOST_CALL jsDOMCoreExceptionPrototypeFunctionToString(ExecState*
exec, JSObject*, JSValue thisValue, const ArgList& args)
{   
    UNUSED_PARAM(args);
    if (thisValue.inherits(&JSDOMCoreExceptionPrototype::s_info))
        return jsNontrivialString(exec, "[object " +
String(thisValue.toThisObject(exec)->className()) + "]");
    if (!thisValue.inherits(&JSDOMCoreException::s_info))
        return throwError(exec, TypeError);
    JSDOMCoreException* castedThisObj =
static_cast<JSDOMCoreException*>(asObject(thisValue));
    DOMCoreException* imp =
static_cast<DOMCoreException*>(castedThisObj->impl());


    JSC::JSValue result = jsString(exec, imp->toString());
    return result;
}

I wondered whether I should look up the Object.prototype.toString to call
instead of constructing the "[object FooPrototype]" string here, but it seemed
a bit involved to do it that way.

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