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6b4b7a54de
This is a normative change in the ECMA-262 spec. See:
de62e8d
This did not actually seem to affect our implementation as we were not
using generators here to begin with. So this patch is basically just
adding spec comments.
38 lines
1.2 KiB
C++
38 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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#include <LibJS/Runtime/ArrayIterator.h>
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#include <LibJS/Runtime/GlobalObject.h>
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namespace JS {
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GC_DEFINE_ALLOCATOR(ArrayIterator);
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// 23.1.5.1 CreateArrayIterator ( array, kind ), https://tc39.es/ecma262/#sec-createarrayiterator
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GC::Ref<ArrayIterator> ArrayIterator::create(Realm& realm, Value array, Object::PropertyKind iteration_kind)
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{
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// 1. Let iterator be OrdinaryObjectCreate(%ArrayIteratorPrototype%, « [[IteratedArrayLike]], [[ArrayLikeNextIndex]], [[ArrayLikeIterationKind]] »).
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// 2. Set iterator.[[IteratedArrayLike]] to array.
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// 3. Set iterator.[[ArrayLikeNextIndex]] to 0.
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// 4. Set iterator.[[ArrayLikeIterationKind]] to kind.
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// 5. Return iterator.
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return realm.create<ArrayIterator>(array, iteration_kind, realm.intrinsics().array_iterator_prototype());
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}
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ArrayIterator::ArrayIterator(Value array, Object::PropertyKind iteration_kind, Object& prototype)
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: Object(ConstructWithPrototypeTag::Tag, prototype)
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, m_array(array)
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, m_iteration_kind(iteration_kind)
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{
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}
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void ArrayIterator::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_array);
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}
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}
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