- JSLock::DropAllLocks dropAllLocks(exec);
- return toJS(static_cast<JSCallbackFunction*>(functionObject)->m_callback(execRef, functionRef, thisObjRef, argumentCount, arguments.data(), toRef(exec->exceptionSlot())));
+ JSValueRef exception = 0;
+ JSValueRef result;
+ {
+ APICallbackShim callbackShim(exec);
+ result = static_cast<JSCallbackFunction*>(toJS(functionRef))->m_callback(execRef, functionRef, thisObjRef, argumentCount, arguments.data(), &exception);
+ }
+ if (exception)
+ throwError(exec, toJS(exec, exception));
+
+ return JSValue::encode(toJS(exec, result));