ladybird/Libraries/LibJS/Runtime/AsyncFunctionConstructor.cpp
Shannon Booth f87041bf3a LibGC+Everywhere: Factor out a LibGC from LibJS
Resulting in a massive rename across almost everywhere! Alongside the
namespace change, we now have the following names:

 * JS::NonnullGCPtr -> GC::Ref
 * JS::GCPtr -> GC::Ptr
 * JS::HeapFunction -> GC::Function
 * JS::CellImpl -> GC::Cell
 * JS::Handle -> GC::Root
2024-11-15 14:49:20 +01:00

55 lines
2 KiB
C++

/*
* Copyright (c) 2021, Idan Horowitz <idan.horowitz@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibJS/Runtime/AsyncFunctionConstructor.h>
#include <LibJS/Runtime/ECMAScriptFunctionObject.h>
#include <LibJS/Runtime/FunctionConstructor.h>
#include <LibJS/Runtime/FunctionObject.h>
#include <LibJS/Runtime/GlobalObject.h>
namespace JS {
GC_DEFINE_ALLOCATOR(AsyncFunctionConstructor);
AsyncFunctionConstructor::AsyncFunctionConstructor(Realm& realm)
: NativeFunction(realm.vm().names.AsyncFunction.as_string(), realm.intrinsics().function_constructor())
{
}
void AsyncFunctionConstructor::initialize(Realm& realm)
{
auto& vm = this->vm();
Base::initialize(realm);
// 27.7.2.2 AsyncFunction.prototype, https://tc39.es/ecma262/#sec-async-function-constructor-prototype
define_direct_property(vm.names.prototype, realm.intrinsics().async_function_prototype(), 0);
define_direct_property(vm.names.length, Value(1), Attribute::Configurable);
}
// 27.7.1.1 AsyncFunction ( p1, p2, … , pn, body ), https://tc39.es/ecma262/#sec-async-function-constructor-arguments
ThrowCompletionOr<Value> AsyncFunctionConstructor::call()
{
return TRY(construct(*this));
}
// 27.7.1.1 AsyncFunction ( ...parameterArgs, bodyArg ), https://tc39.es/ecma262/#sec-async-function-constructor-arguments
ThrowCompletionOr<GC::Ref<Object>> AsyncFunctionConstructor::construct(FunctionObject& new_target)
{
auto& vm = this->vm();
// 1. Let C be the active function object.
auto* constructor = vm.active_function_object();
// 2. If bodyArg is not present, set bodyArg to the empty String.
// NOTE: This does that, as well as the string extraction done inside of CreateDynamicFunction
auto extracted = TRY(extract_parameter_arguments_and_body(vm, vm.running_execution_context().arguments));
// 3. Return ? CreateDynamicFunction(C, NewTarget, async, parameterArgs, bodyArg).
return TRY(FunctionConstructor::create_dynamic_function(vm, *constructor, &new_target, FunctionKind::Async, extracted.parameters, extracted.body));
}
}