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.
35 lines
1.2 KiB
C++
35 lines
1.2 KiB
C++
/*
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* Copyright (c) 2020, Matthew Olsson <mattco@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/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<Object*> get_iterator(GlobalObject&, Value value, IteratorHint hint = IteratorHint::Sync, Value method = {});
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ThrowCompletionOr<Object*> iterator_next(Object& iterator, Value value = {});
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ThrowCompletionOr<Object*> iterator_step(GlobalObject&, Object& iterator);
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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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void iterator_close(Object& iterator);
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Object* create_iterator_result_object(GlobalObject&, Value value, bool done);
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MarkedValueList iterable_to_list(GlobalObject&, Value iterable, Value method = {});
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using IteratorValueCallback = Function<Optional<Completion>(Value)>;
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Completion get_iterator_values(GlobalObject& global_object, Value iterable, IteratorValueCallback callback, Value method = {});
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}
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