mirror of
https://gitee.com/openharmony/arkcompiler_ets_runtime
synced 2024-10-07 08:03:29 +00:00
cc184ba66c
details: delete unused code issue: https://gitee.com/openharmony/ark_js_runtime/issues/I5COHE Signed-off-by: wengchangcheng <wengchangcheng@huawei.com> Change-Id: I5fe62c58353839d4aac1144fc99e2cf87f4374eb
62 lines
2.6 KiB
C++
62 lines
2.6 KiB
C++
/*
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* Copyright (c) 2022 Huawei Device Co., Ltd.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "js_api_deque_iterator.h"
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#include "builtins/builtins_errors.h"
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#include "ecmascript/base/typed_array_helper-inl.h"
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#include "ecmascript/base/typed_array_helper.h"
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#include "global_env.h"
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#include "js_api_deque.h"
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#include "object_factory.h"
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namespace panda::ecmascript {
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using BuiltinsBase = base::BuiltinsBase;
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// DequeIteratorPrototype%.next ( )
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JSTaggedValue JSAPIDequeIterator::Next(EcmaRuntimeCallInfo *argv)
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{
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ASSERT(argv);
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JSThread *thread = argv->GetThread();
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[[maybe_unused]] EcmaHandleScope handleScope(thread);
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JSHandle<JSTaggedValue> input(BuiltinsBase::GetThis(argv));
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if (!input->IsJSAPIDequeIterator()) {
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THROW_TYPE_ERROR_AND_RETURN(thread, "this value is not an deque iterator", JSTaggedValue::Exception());
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}
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JSHandle<JSAPIDequeIterator> iter(input);
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JSHandle<JSTaggedValue> iteratorDeque(thread, iter->GetIteratedDeque());
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JSHandle<JSTaggedValue> undefinedHandle = thread->GlobalConstants()->GetHandledUndefined();
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if (iteratorDeque->IsUndefined()) {
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return JSIterator::CreateIterResultObject(thread, undefinedHandle, true).GetTaggedValue();
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}
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JSHandle<JSAPIDeque> deque = JSHandle<JSAPIDeque>::Cast(iteratorDeque);
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uint32_t index = iter->GetNextIndex();
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JSHandle<TaggedArray> elements(thread, deque->GetElements());
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uint32_t capacity = elements->GetLength();
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uint32_t first = deque->GetFirst();
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uint32_t last = deque->GetLast();
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if (index == last) {
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iter->SetIteratedDeque(thread, undefinedHandle);
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return JSIterator::CreateIterResultObject(thread, undefinedHandle, true).GetTaggedValue();
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}
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ASSERT(capacity != 0);
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iter->SetNextIndex((index + 1) % capacity);
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uint32_t elementIndex = (index + capacity - first) % capacity;
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JSHandle<JSTaggedValue> value = JSTaggedValue::GetProperty(thread, iteratorDeque, elementIndex).GetValue();
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return JSIterator::CreateIterResultObject(thread, value, false).GetTaggedValue();
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}
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} // namespace panda::ecmascript
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