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/*
* Copyright (c) 2021, Idan Horowitz <idan.horowitz@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibJS/Runtime/AbstractOperations.h>
#include <LibJS/Runtime/Error.h>
#include <LibJS/Runtime/GlobalObject.h>
#include <LibJS/Runtime/IteratorOperations.h>
#include <LibJS/Runtime/Set.h>
#include <LibJS/Runtime/SetConstructor.h>
namespace JS {
SetConstructor::SetConstructor(Realm& realm)
: NativeFunction(realm.vm().names.Set.as_string(), *realm.intrinsics().function_prototype())
{
}
void SetConstructor::initialize(Realm& realm)
{
auto& vm = this->vm();
NativeFunction::initialize(realm);
// 24.2.2.1 Set.prototype, https://tc39.es/ecma262/#sec-set.prototype
define_direct_property(vm.names.prototype, realm.intrinsics().set_prototype(), 0);
define_native_accessor(realm, *vm.well_known_symbol_species(), symbol_species_getter, {}, Attribute::Configurable);
define_direct_property(vm.names.length, Value(0), Attribute::Configurable);
}
// 24.2.1.1 Set ( [ iterable ] ), https://tc39.es/ecma262/#sec-set-iterable
ThrowCompletionOr<Value> SetConstructor::call()
{
auto& vm = this->vm();
return vm.throw_completion<TypeError>(ErrorType::ConstructorWithoutNew, vm.names.Set);
}
// 24.2.1.1 Set ( [ iterable ] ), https://tc39.es/ecma262/#sec-set-iterable
ThrowCompletionOr<Object*> SetConstructor::construct(FunctionObject& new_target)
{
auto& vm = this->vm();
auto set = TRY(ordinary_create_from_constructor<Set>(vm, new_target, &Intrinsics::set_prototype));
if (vm.argument(0).is_nullish())
return set.ptr();
auto adder = TRY(set->get(vm.names.add));
if (!adder.is_function())
return vm.throw_completion<TypeError>(ErrorType::NotAFunction, "'add' property of Set");
(void)TRY(get_iterator_values(vm, vm.argument(0), [&](Value iterator_value) -> Optional<Completion> {
TRY(JS::call(vm, adder.as_function(), set, iterator_value));
return {};
}));
return set.ptr();
}
// 24.2.2.2 get Set [ @@species ], https://tc39.es/ecma262/#sec-get-set-@@species
JS_DEFINE_NATIVE_FUNCTION(SetConstructor::symbol_species_getter)
{
return vm.this_value();
}
}
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