arkcompiler_ets_runtime/ecmascript/js_string_iterator.cpp
fangting cdbfa4340e optimize compiler
Issue:#IALVU8
Signed-off-by: fangting <fangting12@huawei.com>
2024-08-27 11:02:23 +08:00

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/*
* Copyright (c) 2021 Huawei Device Co., Ltd.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "ecmascript/js_string_iterator.h"
#include "ecmascript/global_env.h"
namespace panda::ecmascript {
JSHandle<JSStringIterator> JSStringIterator::CreateStringIterator(const JSThread *thread,
const JSHandle<EcmaString> &string)
{
// 1. Assert: Type(string) is String.
// 2. Let iterator be ObjectCreate(%StringIteratorPrototype%, [[IteratedString]], [[StringIteratorNextIndex]] ?.)
JSHandle<GlobalEnv> env = thread->GetEcmaVM()->GetGlobalEnv();
JSHandle<JSFunction> strIterCtor(env->GetStringIterator());
ObjectFactory *factory = thread->GetEcmaVM()->GetFactory();
JSHandle<JSStringIterator> iterator(factory->NewJSObjectByConstructor(strIterCtor));
// 3. Set iterators [[IteratedString]] internal slot to string.
// 4. Set iterators [[StringIteratorNextIndex]] internal slot to 0.
iterator->SetIteratedString(thread, string);
iterator->SetStringIteratorNextIndex(0);
return iterator;
}
} // namespace panda::ecmascript