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>
77 lines
2.2 KiB
C++
77 lines
2.2 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 "switchBuilder.h"
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#include <ir/expression.h>
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#include <ir/statements/switchStatement.h>
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#include <ir/statements/switchCaseStatement.h>
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#include <compiler/core/pandagen.h>
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#include <compiler/core/labelTarget.h>
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#include <typescript/checker.h>
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namespace panda::es2panda::compiler {
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// SwitchBuilder
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SwitchBuilder::SwitchBuilder(PandaGen *pg, const ir::SwitchStatement *stmt)
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: pg_(pg), end_(pg->AllocLabel()), labelCtx_(pg, LabelTarget(end_, LabelTarget::BREAK_LABEL)), stmt_(stmt)
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{
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for (size_t i = 0; i < stmt_->Cases().size(); i++) {
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caseLabels_.push_back(pg_->AllocLabel());
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}
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}
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SwitchBuilder::~SwitchBuilder()
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{
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pg_->SetLabel(stmt_, end_);
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}
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void SwitchBuilder::SetCaseTarget(uint32_t index)
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{
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pg_->SetLabel(stmt_->Cases()[index], caseLabels_[index]);
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}
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void SwitchBuilder::CompileTagOfSwitch(VReg tag)
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{
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stmt_->Discriminant()->Compile(pg_);
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pg_->StoreAccumulator(stmt_->Discriminant(), tag);
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}
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void SwitchBuilder::CompileCaseStatements(uint32_t index)
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{
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for (const auto *stmt : stmt_->Cases()[index]->Consequent()) {
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stmt->Compile(pg_);
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}
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}
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void SwitchBuilder::JumpIfCase(VReg tag, uint32_t index)
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{
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const ir::SwitchCaseStatement *caseTarget = stmt_->Cases()[index];
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caseTarget->Test()->Compile(pg_);
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pg_->Condition(caseTarget, lexer::TokenType::PUNCTUATOR_NOT_STRICT_EQUAL, tag, caseLabels_[index]);
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}
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void SwitchBuilder::JumpToDefault(uint32_t defaultIndex)
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{
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const ir::SwitchCaseStatement *defaultTarget = stmt_->Cases()[defaultIndex];
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pg_->Branch(defaultTarget, caseLabels_[defaultIndex]);
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}
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void SwitchBuilder::Break()
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{
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pg_->Branch(stmt_, end_);
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}
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} // namespace panda::es2panda::compiler
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