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https://github.com/RGBCube/serenity
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09a11fa6ea
Instead of using plain objects as Iterator records, causes confusion about the object itself actually being its [[Iterator]] slot, and requires non-standard type conversion shenanigans fpr the [[NextValue]] and [[Done]] internal slots, implement a proper Iterator record struct and use it throughout. Also annotate the remaining Iterator AOs with spec comments while we're here.
38 lines
1.5 KiB
C++
38 lines
1.5 KiB
C++
/*
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* Copyright (c) 2020, Matthew Olsson <mattco@serenityos.org>
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* Copyright (c) 2022, Linus Groh <linusg@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Function.h>
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#include <AK/Optional.h>
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#include <LibJS/Runtime/Completion.h>
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#include <LibJS/Runtime/Iterator.h>
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#include <LibJS/Runtime/Object.h>
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namespace JS {
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// 7.4 Operations on Iterator Objects, https://tc39.es/ecma262/#sec-operations-on-iterator-objects
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enum class IteratorHint {
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Sync,
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Async,
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};
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ThrowCompletionOr<Iterator> get_iterator(GlobalObject&, Value, IteratorHint = IteratorHint::Sync, Optional<Value> method = {});
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ThrowCompletionOr<Object*> iterator_next(GlobalObject&, Iterator const&, Optional<Value> = {});
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ThrowCompletionOr<Object*> iterator_step(GlobalObject&, Iterator const&);
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ThrowCompletionOr<bool> iterator_complete(GlobalObject&, Object& iterator_result);
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ThrowCompletionOr<Value> iterator_value(GlobalObject&, Object& iterator_result);
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Completion iterator_close(GlobalObject&, Iterator const&, Completion);
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Completion async_iterator_close(GlobalObject&, Iterator const&, Completion);
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Object* create_iterator_result_object(GlobalObject&, Value, bool done);
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ThrowCompletionOr<MarkedValueList> iterable_to_list(GlobalObject&, Value iterable, Optional<Value> method = {});
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using IteratorValueCallback = Function<Optional<Completion>(Value)>;
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Completion get_iterator_values(GlobalObject&, Value iterable, IteratorValueCallback callback, Optional<Value> method = {});
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}
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