1 /**
2 * Copyright (c) 2021 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "doWhileStatement.h"
17
18 #include <compiler/base/condition.h>
19 #include <compiler/core/pandagen.h>
20 #include <typescript/checker.h>
21 #include <ir/astDump.h>
22
23 namespace panda::es2panda::ir {
24
Iterate(const NodeTraverser & cb) const25 void DoWhileStatement::Iterate(const NodeTraverser &cb) const
26 {
27 cb(body_);
28 cb(test_);
29 }
30
Dump(ir::AstDumper * dumper) const31 void DoWhileStatement::Dump(ir::AstDumper *dumper) const
32 {
33 dumper->Add({{"type", "DoWhileStatement"}, {"body", body_}, {"test", test_}});
34 }
35
Compile(compiler::PandaGen * pg) const36 void DoWhileStatement::Compile(compiler::PandaGen *pg) const
37 {
38 auto *startLabel = pg->AllocLabel();
39 compiler::LabelTarget labelTarget(pg);
40
41 pg->SetLabel(this, startLabel);
42
43 {
44 compiler::LoopEnvScope envScope(pg, labelTarget, scope_);
45 body_->Compile(pg);
46 }
47
48 pg->SetLabel(this, labelTarget.ContinueTarget());
49 compiler::Condition::Compile(pg, this->Test(), labelTarget.BreakTarget());
50
51 pg->Branch(this, startLabel);
52 pg->SetLabel(this, labelTarget.BreakTarget());
53 }
54
Check(checker::Checker * checker) const55 checker::Type *DoWhileStatement::Check(checker::Checker *checker) const
56 {
57 checker::ScopeContext scopeCtx(checker, scope_);
58
59 checker::Type *testType = test_->Check(checker);
60 checker->CheckTruthinessOfType(testType, this->Start());
61 body_->Check(checker);
62
63 return nullptr;
64 }
65
UpdateSelf(const NodeUpdater & cb,binder::Binder * binder)66 void DoWhileStatement::UpdateSelf(const NodeUpdater &cb, binder::Binder *binder)
67 {
68 {
69 auto loopScopeCtx = binder::LexicalScope<binder::LoopScope>::Enter(binder, scope_);
70 body_ = UpdateChildStatement(cb, binder, body_);
71 }
72 test_ = std::get<ir::AstNode *>(cb(test_))->AsExpression();
73 }
74
75 } // namespace panda::es2panda::ir
76