d9d245faa7
Iterator.from creates an Iterator from either an existing iterator or an iterator-like object. In the latter case, it sets the prototype of the returned iterator to WrapForValidIteratorPrototype to wrap around the iterator-like object's iteration methods.
41 lines
1.1 KiB
C++
41 lines
1.1 KiB
C++
/*
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* Copyright (c) 2022, Linus Groh <linusg@serenityos.org>
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* Copyright (c) 2023, Tim Flynn <trflynn89@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 <LibJS/Runtime/Completion.h>
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#include <LibJS/Runtime/Object.h>
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#include <LibJS/Runtime/Value.h>
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namespace JS {
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// 7.4.1 Iterator Records, https://tc39.es/ecma262/#sec-iterator-records
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struct IteratorRecord {
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GCPtr<Object> iterator; // [[Iterator]]
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Value next_method; // [[NextMethod]]
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bool done { false }; // [[Done]]
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};
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class Iterator : public Object {
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JS_OBJECT(Iterator, Object);
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public:
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static ThrowCompletionOr<NonnullGCPtr<Iterator>> create(Realm&, Object& prototype, IteratorRecord iterated);
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IteratorRecord const& iterated() const { return m_iterated; }
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private:
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Iterator(Object& prototype, IteratorRecord iterated);
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explicit Iterator(Object& prototype);
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IteratorRecord m_iterated; // [[Iterated]]
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};
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ThrowCompletionOr<IteratorRecord> get_iterator_direct(VM&, Object&);
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ThrowCompletionOr<IteratorRecord> get_iterator_flattenable(VM&, Value);
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}
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