jcs.org
Serenity Operating System
1/*
2 * Copyright (c) 2021-2022, Linus Groh <linusg@serenityos.org>
3 *
4 * SPDX-License-Identifier: BSD-2-Clause
5 */
6
7#include <LibJS/Runtime/AbstractOperations.h>
8#include <LibJS/Runtime/FunctionObject.h>
9#include <LibJS/Runtime/JobCallback.h>
10
11namespace JS {
12
13// 9.5.2 HostMakeJobCallback ( callback ), https://tc39.es/ecma262/#sec-hostmakejobcallback
14JobCallback make_job_callback(FunctionObject& callback)
15{
16 // 1. Return the JobCallback Record { [[Callback]]: callback, [[HostDefined]]: empty }.
17 return { make_handle(&callback) };
18}
19
20// 9.5.3 HostCallJobCallback ( jobCallback, V, argumentsList ), https://tc39.es/ecma262/#sec-hostcalljobcallback
21ThrowCompletionOr<Value> call_job_callback(VM& vm, JobCallback& job_callback, Value this_value, MarkedVector<Value> arguments_list)
22{
23 // 1. Assert: IsCallable(jobCallback.[[Callback]]) is true.
24 VERIFY(!job_callback.callback.is_null());
25
26 // 2. Return ? Call(jobCallback.[[Callback]], V, argumentsList).
27 return call(vm, job_callback.callback.cell(), this_value, move(arguments_list));
28}
29
30}