JSValue JSInjectedScriptHost::evaluate(ExecState* exec)
{
    JSValue expression = exec->argument(0);
    if (!expression.isString())
        return throwError(exec, createError(exec, "String argument expected."));
    JSGlobalObject* globalObject = exec->lexicalGlobalObject();
    JSFunction* evalFunction = globalObject->evalFunction();
    CallData callData;
    CallType callType = evalFunction->methodTable()->getCallData(evalFunction, callData);
    if (callType == CallTypeNone)
        return jsUndefined();
    MarkedArgumentBuffer args;
    args.append(expression);

    bool wasEvalEnabled = globalObject->evalEnabled();
    globalObject->setEvalEnabled(true);
    JSValue result = JSC::call(exec, evalFunction, callType, callData, exec->globalThisValue(), args);
    globalObject->setEvalEnabled(wasEvalEnabled);

    return result;
}
JSValue JSInjectedScriptHost::evaluate(ExecState* exec) const
{
    JSGlobalObject* globalObject = exec->lexicalGlobalObject();
    return globalObject->evalFunction();
}