mirror of
https://github.com/openharmony/ark_ts2abc.git
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zhuoli72
c3a2e0b34e
Change-Id: I26f663c67b42f6549c7777a88c8bf00bd845fc96 Signed-off-by: zhuoli72 <pengzhuoli@huawei.com>
72 lines
2.2 KiB
C++
72 lines
2.2 KiB
C++
/*
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* Copyright (c) 2021-2022 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 "generatorFunctionBuilder.h"
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#include <compiler/core/pandagen.h>
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#include <compiler/base/catchTable.h>
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#include <ir/base/scriptFunction.h>
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namespace panda::es2panda::compiler {
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void GeneratorFunctionBuilder::Prepare(const ir::ScriptFunction *node) const
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{
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VReg callee = FunctionReg(node);
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pg_->CreateGeneratorObj(node, callee);
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pg_->StoreAccumulator(node, funcObj_);
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pg_->SuspendGenerator(node, funcObj_);
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pg_->SetLabel(node, catchTable_->LabelSet().TryBegin());
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}
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void GeneratorFunctionBuilder::CleanUp(const ir::ScriptFunction *node) const
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{
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const auto &labelSet = catchTable_->LabelSet();
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pg_->SetLabel(node, labelSet.TryEnd());
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pg_->SetLabel(node, labelSet.CatchBegin());
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pg_->GeneratorComplete(node, funcObj_);
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pg_->EmitThrow(node);
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pg_->SetLabel(node, labelSet.CatchEnd());
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}
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void GeneratorFunctionBuilder::DirectReturn(const ir::AstNode *node) const
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{
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pg_->GeneratorComplete(node, funcObj_);
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pg_->CreateIterResultObject(node, true);
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pg_->EmitReturn(node);
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}
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void GeneratorFunctionBuilder::ImplicitReturn(const ir::AstNode *node) const
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{
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pg_->LoadConst(node, Constant::JS_UNDEFINED);
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DirectReturn(node);
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}
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void GeneratorFunctionBuilder::Yield(const ir::AstNode *node)
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{
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RegScope rs(pg_);
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VReg completionType = pg_->AllocReg();
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VReg completionValue = pg_->AllocReg();
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pg_->CreateIterResultObject(node, false);
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pg_->GeneratorYield(node, funcObj_);
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SuspendResumeExecution(node, completionType, completionValue);
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HandleCompletion(node, completionType, completionValue);
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}
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} // namespace panda::es2panda::compiler
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