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https://github.com/RGBCube/serenity
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3eb2e4e08a
This uses a new Iterator type called IteratorHelper. This does not implement IteratorHelper.prototype.return as that relies on generator objects (i.e. the internal slots of JS::GeneratorObject), which are not hooked up here.
45 lines
1.2 KiB
C++
45 lines
1.2 KiB
C++
/*
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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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#include <LibJS/Runtime/GlobalObject.h>
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#include <LibJS/Runtime/IteratorHelper.h>
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#include <LibJS/Runtime/IteratorOperations.h>
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#include <LibJS/Runtime/Realm.h>
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namespace JS {
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ThrowCompletionOr<NonnullGCPtr<IteratorHelper>> IteratorHelper::create(Realm& realm, IteratorRecord underlying_iterator, Closure closure)
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{
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return TRY(realm.heap().allocate<IteratorHelper>(realm, realm.intrinsics().iterator_helper_prototype(), move(underlying_iterator), move(closure)));
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}
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IteratorHelper::IteratorHelper(Object& prototype, IteratorRecord underlying_iterator, Closure closure)
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: Object(ConstructWithPrototypeTag::Tag, prototype)
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, m_underlying_iterator(move(underlying_iterator))
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, m_closure(move(closure))
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{
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}
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void IteratorHelper::visit_edges(Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_underlying_iterator.iterator);
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}
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Value IteratorHelper::result(Value value)
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{
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if (value.is_undefined())
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m_done = true;
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return value;
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}
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ThrowCompletionOr<Value> IteratorHelper::close_result(Completion completion)
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{
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m_done = true;
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return *TRY(iterator_close(vm(), underlying_iterator(), move(completion)));
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}
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}
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