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/*
* Copyright (c) 2021, Matthew Olsson <mattco@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibJS/Runtime/ECMAScriptFunctionObject.h>
#include <LibJS/Runtime/FunctionConstructor.h>
#include <LibJS/Runtime/GeneratorFunctionConstructor.h>
#include <LibJS/Runtime/GlobalObject.h>
namespace JS {
GeneratorFunctionConstructor::GeneratorFunctionConstructor(Realm& realm)
: NativeFunction(static_cast<Object&>(*realm.intrinsics().function_constructor()))
{
}
void GeneratorFunctionConstructor::initialize(Realm& realm)
{
auto& vm = this->vm();
NativeFunction::initialize(realm);
// 27.3.2.1 GeneratorFunction.length, https://tc39.es/ecma262/#sec-generatorfunction.length
define_direct_property(vm.names.length, Value(1), Attribute::Configurable);
// 27.3.2.2 GeneratorFunction.prototype, https://tc39.es/ecma262/#sec-generatorfunction.length
define_direct_property(vm.names.prototype, realm.intrinsics().generator_function_prototype(), 0);
}
// 27.3.1.1 GeneratorFunction ( p1, p2, … , pn, body ), https://tc39.es/ecma262/#sec-generatorfunction
ThrowCompletionOr<Value> GeneratorFunctionConstructor::call()
{
return TRY(construct(*this));
}
// 27.3.1.1 GeneratorFunction ( p1, p2, … , pn, body ), https://tc39.es/ecma262/#sec-generatorfunction
ThrowCompletionOr<NonnullGCPtr<Object>> GeneratorFunctionConstructor::construct(FunctionObject& new_target)
{
auto& vm = this->vm();
// 1. Let C be the active function object.
auto* constructor = vm.active_function_object();
// 2. Let args be the argumentsList that was passed to this function by [[Call]] or [[Construct]].
auto& args = vm.running_execution_context().arguments;
// 3. Return ? CreateDynamicFunction(C, NewTarget, generator, args).
return *TRY(FunctionConstructor::create_dynamic_function(vm, *constructor, &new_target, FunctionKind::Generator, args));
}
}
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