mirror of
https://gitee.com/openharmony/arkcompiler_ets_runtime
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f2c60fbed0
Issue:https://gitee.com/openharmony/arkcompiler_ets_runtime/issues/I7JU9Q Signed-off-by: 王笑佳 <wangxiaojia5@huawei.com>
102 lines
4.6 KiB
C++
102 lines
4.6 KiB
C++
/*
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* Copyright (c) 2021 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 "builtins_generator.h"
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#include "ecmascript/js_function.h"
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#include "ecmascript/js_generator_object.h"
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namespace panda::ecmascript::builtins {
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// 26.2.1.1 GeneratorFunction(p1, p2, … , pn, body)
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JSTaggedValue BuiltinsGenerator::GeneratorFunctionConstructor(EcmaRuntimeCallInfo *argv)
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{
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BUILTINS_API_TRACE(argv->GetThread(), Generator, Constructor);
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// not support
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THROW_TYPE_ERROR_AND_RETURN(argv->GetThread(), "Not support eval. Forbidden using new GeneratorFunction().",
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JSTaggedValue::Exception());
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}
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// 26.4.1.2 Generator.prototype.next(value)
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JSTaggedValue BuiltinsGenerator::GeneratorPrototypeNext(EcmaRuntimeCallInfo *argv)
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{
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BUILTINS_API_TRACE(argv->GetThread(), Generator, PrototypeNext);
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// 1.Let g be the this value.
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JSThread *thread = argv->GetThread();
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[[maybe_unused]] EcmaHandleScope handleScope(thread);
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JSHandle<JSTaggedValue> msg = GetThis(argv);
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if (!msg->IsGeneratorObject()) {
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THROW_TYPE_ERROR_AND_RETURN(thread, "Not a generator object.", JSTaggedValue::Exception());
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}
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JSHandle<JSGeneratorObject> generator(thread, JSGeneratorObject::Cast(*JSTaggedValue::ToObject(thread, msg)));
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RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread);
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JSHandle<JSTaggedValue> value = GetCallArg(argv, 0);
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// 2.Return ? GeneratorResume(g, value).
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JSHandle<JSObject> result = JSGeneratorObject::GeneratorResume(thread, generator, value.GetTaggedValue());
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RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread);
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return result.GetTaggedValue();
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}
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// 26.4.1.3 Generator.prototype.return(value)
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JSTaggedValue BuiltinsGenerator::GeneratorPrototypeReturn(EcmaRuntimeCallInfo *argv)
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{
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BUILTINS_API_TRACE(argv->GetThread(), Generator, PrototypeReturn);
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// 1.Let g be the this value.
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JSThread *thread = argv->GetThread();
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[[maybe_unused]] EcmaHandleScope handleScope(thread);
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JSHandle<JSTaggedValue> msg = GetThis(argv);
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if (!msg->IsGeneratorObject()) {
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THROW_TYPE_ERROR_AND_RETURN(thread, "Not a generator object.", JSTaggedValue::Exception());
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}
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JSHandle<JSGeneratorObject> generator(thread, JSGeneratorObject::Cast(*JSTaggedValue::ToObject(thread, msg)));
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RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread);
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// 2.Let C be Completion { [[Type]]: return, [[Value]]: value, [[Target]]: empty }.
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JSHandle<JSTaggedValue> value = GetCallArg(argv, 0);
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ObjectFactory *factory = thread->GetEcmaVM()->GetFactory();
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JSHandle<CompletionRecord> completionRecord =
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factory->NewCompletionRecord(CompletionRecordType::RETURN, value);
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// 3.Return ? GeneratorResumeAbrupt(g, C).
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JSHandle<JSObject> result = JSGeneratorObject::GeneratorResumeAbrupt(thread, generator, completionRecord);
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RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread);
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return result.GetTaggedValue();
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}
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// 26.4.1.4 Generator.prototype.throw(exception)
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JSTaggedValue BuiltinsGenerator::GeneratorPrototypeThrow(EcmaRuntimeCallInfo *argv)
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{
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BUILTINS_API_TRACE(argv->GetThread(), Generator, PrototypeThrow);
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// 1.Let g be the this value.
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JSThread *thread = argv->GetThread();
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[[maybe_unused]] EcmaHandleScope handleScope(thread);
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JSHandle<JSTaggedValue> msg = GetThis(argv);
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if (!msg->IsGeneratorObject()) {
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THROW_TYPE_ERROR_AND_RETURN(thread, "Not a generator object.", JSTaggedValue::Exception());
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}
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JSHandle<JSGeneratorObject> generator(thread, JSGeneratorObject::Cast(*JSTaggedValue::ToObject(thread, msg)));
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RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread);
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// 2.Let C be ThrowCompletion(exception).
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JSHandle<JSTaggedValue> exception = GetCallArg(argv, 0);
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ObjectFactory *factory = thread->GetEcmaVM()->GetFactory();
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JSHandle<CompletionRecord> completionRecord =
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factory->NewCompletionRecord(CompletionRecordType::THROW, exception);
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// 3.Return ? GeneratorResumeAbrupt(g, C).
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JSHandle<JSObject> result = JSGeneratorObject::GeneratorResumeAbrupt(thread, generator, completionRecord);
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RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread);
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return result.GetTaggedValue();
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}
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} // namespace panda::ecmascript::builtins
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