04b4307b3d
This one is a bit unusual, so to clarify: Previously, callers of get_iterator_values() would supply a callback that would return an IterationDecision, and an enum to indicate whether iterator_close() should be invoked upon IterationDecision::Break. Now, use of both those enums is removed, and callers must return an Optional<Completion>. If a Completion is provided, the iterator will be closed, and that completion will be returned from get_iterator_values. Otherwise, once the iterator is exhausted, a default-initialized Completion will be returned.
69 lines
2.1 KiB
C++
69 lines
2.1 KiB
C++
/*
|
|
* 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/WeakSet.h>
|
|
#include <LibJS/Runtime/WeakSetConstructor.h>
|
|
|
|
namespace JS {
|
|
|
|
WeakSetConstructor::WeakSetConstructor(GlobalObject& global_object)
|
|
: NativeFunction(vm().names.WeakSet.as_string(), *global_object.function_prototype())
|
|
{
|
|
}
|
|
|
|
void WeakSetConstructor::initialize(GlobalObject& global_object)
|
|
{
|
|
auto& vm = this->vm();
|
|
NativeFunction::initialize(global_object);
|
|
|
|
// 24.4.2.1 WeakSet.prototype, https://tc39.es/ecma262/#sec-weakset.prototype
|
|
define_direct_property(vm.names.prototype, global_object.weak_set_prototype(), 0);
|
|
|
|
define_direct_property(vm.names.length, Value(0), Attribute::Configurable);
|
|
}
|
|
|
|
WeakSetConstructor::~WeakSetConstructor()
|
|
{
|
|
}
|
|
|
|
// 24.4.1.1 WeakSet ( [ iterable ] ), https://tc39.es/ecma262/#sec-weakset-iterable
|
|
Value WeakSetConstructor::call()
|
|
{
|
|
auto& vm = this->vm();
|
|
vm.throw_exception<TypeError>(global_object(), ErrorType::ConstructorWithoutNew, vm.names.WeakSet);
|
|
return {};
|
|
}
|
|
|
|
// 24.4.1.1 WeakSet ( [ iterable ] ), https://tc39.es/ecma262/#sec-weakset-iterable
|
|
Value WeakSetConstructor::construct(FunctionObject& new_target)
|
|
{
|
|
auto& vm = this->vm();
|
|
auto& global_object = this->global_object();
|
|
|
|
auto* weak_set = TRY_OR_DISCARD(ordinary_create_from_constructor<WeakSet>(global_object, new_target, &GlobalObject::weak_set_prototype));
|
|
|
|
if (vm.argument(0).is_nullish())
|
|
return weak_set;
|
|
|
|
auto adder = TRY_OR_DISCARD(weak_set->get(vm.names.add));
|
|
if (!adder.is_function()) {
|
|
vm.throw_exception<TypeError>(global_object, ErrorType::NotAFunction, "'add' property of WeakSet");
|
|
return {};
|
|
}
|
|
|
|
TRY_OR_DISCARD(get_iterator_values(global_object, vm.argument(0), [&](Value iterator_value) -> Optional<Completion> {
|
|
TRY(vm.call(adder.as_function(), Value(weak_set), iterator_value));
|
|
return {};
|
|
}));
|
|
|
|
return weak_set;
|
|
}
|
|
|
|
}
|