void
nsXBLProtoImpl::UnlinkJSObjects()
{
if (mClassObject) {
DestroyMembers();
}
}
nsresult
nsXBLProtoImpl::CompilePrototypeMembers(nsXBLPrototypeBinding* aBinding)
{
// We want to pre-compile our implementation's members against a "prototype context". Then when we actually
// bind the prototype to a real xbl instance, we'll clone the pre-compiled JS into the real instance's
// context.
nsCOMPtr<nsIScriptGlobalObjectOwner> globalOwner(
do_QueryInterface(aBinding->XBLDocumentInfo()));
nsIScriptGlobalObject* globalObject = globalOwner->GetScriptGlobalObject();
NS_ENSURE_TRUE(globalObject, NS_ERROR_UNEXPECTED);
nsIScriptContext *context = globalObject->GetContext();
NS_ENSURE_TRUE(context, NS_ERROR_OUT_OF_MEMORY);
JSContext *cx = (JSContext *)context->GetNativeContext();
JSObject *global = globalObject->GetGlobalJSObject();
void* classObject;
nsresult rv = aBinding->InitClass(mClassName, cx, global, global,
&classObject);
if (NS_FAILED(rv))
return rv;
mClassObject = (JSObject*) classObject;
if (!mClassObject)
return NS_ERROR_FAILURE;
// Set version up front so we don't thrash it
JSVersion oldVersion = ::JS_SetVersion(cx, JSVERSION_LATEST);
// Now that we have a class object installed, we walk our member list and compile each of our
// properties and methods in turn.
for (nsXBLProtoImplMember* curr = mMembers;
curr;
curr = curr->GetNext()) {
nsresult rv = curr->CompileMember(context, mClassName, mClassObject);
if (NS_FAILED(rv)) {
DestroyMembers();
::JS_SetVersion(cx, oldVersion);
return rv;
}
}
::JS_SetVersion(cx, oldVersion);
return NS_OK;
}