1 /**
2 * Copyright (c) 2024-2025 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 "tryStatement.h"
17
18 #include "checker/TSchecker.h"
19 #include "compiler/core/pandagen.h"
20 #include "compiler/core/ETSGen.h"
21 #include "compiler/core/dynamicContext.h"
22 #include "compiler/base/catchTable.h"
23 #include "ir/astDump.h"
24 #include "ir/srcDump.h"
25 #include "ir/base/catchClause.h"
26 #include "ir/statements/blockStatement.h"
27
28 namespace ark::es2panda::ir {
TransformChildren(const NodeTransformer & cb,std::string_view transformationName)29 void TryStatement::TransformChildren(const NodeTransformer &cb, std::string_view transformationName)
30 {
31 if (auto *transformedNode = cb(block_); block_ != transformedNode) {
32 block_->SetTransformedNode(transformationName, transformedNode);
33 block_ = transformedNode->AsBlockStatement();
34 }
35
36 for (auto *&it : VectorIterationGuard(catchClauses_)) {
37 if (auto *transformedNode = cb(it); it != transformedNode) {
38 it->SetTransformedNode(transformationName, transformedNode);
39 it = transformedNode->AsCatchClause();
40 }
41 }
42
43 if (finalizer_ != nullptr) {
44 if (auto *transformedNode = cb(finalizer_); finalizer_ != transformedNode) {
45 finalizer_->SetTransformedNode(transformationName, transformedNode);
46 finalizer_ = transformedNode->AsBlockStatement();
47 }
48 }
49 }
50
Iterate(const NodeTraverser & cb) const51 void TryStatement::Iterate(const NodeTraverser &cb) const
52 {
53 cb(block_);
54
55 for (auto *it : VectorIterationGuard(catchClauses_)) {
56 cb(it);
57 }
58
59 if (finalizer_ != nullptr) {
60 cb(finalizer_);
61 }
62 }
63
Dump(ir::AstDumper * dumper) const64 void TryStatement::Dump(ir::AstDumper *dumper) const
65 {
66 dumper->Add({{"type", "TryStatement"},
67 {"block", block_},
68 {"handler", catchClauses_},
69 {"finalizer", AstDumper::Nullish(finalizer_)}});
70 }
71
Dump(ir::SrcDumper * dumper) const72 void TryStatement::Dump(ir::SrcDumper *dumper) const
73 {
74 ES2PANDA_ASSERT(block_ != nullptr);
75 dumper->Add("try {");
76 dumper->IncrIndent();
77 dumper->Endl();
78 block_->Dump(dumper);
79 dumper->DecrIndent();
80 dumper->Endl();
81 dumper->Add("}");
82 for (auto clause : catchClauses_) {
83 dumper->Add(" catch ");
84 clause->Dump(dumper);
85 }
86 if (finalizer_ != nullptr) {
87 dumper->Add(" finally {");
88 dumper->IncrIndent();
89 dumper->Endl();
90 finalizer_->Dump(dumper);
91 dumper->DecrIndent();
92 dumper->Endl();
93 dumper->Add("}");
94 }
95 }
96
HasDefaultCatchClause() const97 bool TryStatement::HasDefaultCatchClause() const
98 {
99 return (!catchClauses_.empty() && catchClauses_.back()->IsDefaultCatchClause());
100 }
101
Compile(compiler::PandaGen * pg) const102 void TryStatement::Compile([[maybe_unused]] compiler::PandaGen *pg) const
103 {
104 pg->GetAstCompiler()->Compile(this);
105 }
106
Compile(compiler::ETSGen * etsg) const107 void TryStatement::Compile(compiler::ETSGen *etsg) const
108 {
109 etsg->GetAstCompiler()->Compile(this);
110 }
111
Check(checker::TSChecker * checker)112 checker::Type *TryStatement::Check([[maybe_unused]] checker::TSChecker *checker)
113 {
114 return checker->GetAnalyzer()->Check(this);
115 }
116
Check(checker::ETSChecker * checker)117 checker::VerifiedType TryStatement::Check([[maybe_unused]] checker::ETSChecker *checker)
118 {
119 return {this, checker->GetAnalyzer()->Check(this)};
120 }
121
TryStatement(TryStatement const & other,ArenaAllocator * allocator)122 TryStatement::TryStatement(TryStatement const &other, ArenaAllocator *allocator)
123 : Statement(other),
124 catchClauses_(allocator->Adapter()),
125 finalizerInsertions_(allocator->Adapter()),
126 finallyCanCompleteNormally_(other.finallyCanCompleteNormally_)
127 {
128 block_ = other.block_ == nullptr ? nullptr : other.block_->Clone(allocator, this)->AsBlockStatement();
129 for (auto &cc : other.catchClauses_) {
130 if (cc == nullptr) {
131 catchClauses_.push_back(nullptr);
132 continue;
133 }
134 auto *ccClone = cc->Clone(allocator, this);
135 ES2PANDA_ASSERT(ccClone != nullptr);
136 catchClauses_.push_back(ccClone->AsCatchClause());
137 }
138 if (other.finalizer_ == nullptr) {
139 finalizer_ = nullptr;
140 } else {
141 auto *otherFinalizerClone = other.finalizer_->Clone(allocator, this);
142 ES2PANDA_ASSERT(otherFinalizerClone != nullptr);
143 finalizer_ = otherFinalizerClone->AsBlockStatement();
144 }
145 for (auto &[label, st] : other.finalizerInsertions_) {
146 finalizerInsertions_.emplace_back(label, st);
147 }
148 }
149
Clone(ArenaAllocator * const allocator,AstNode * const parent)150 TryStatement *TryStatement::Clone(ArenaAllocator *const allocator, AstNode *const parent)
151 {
152 auto *const clone = allocator->New<TryStatement>(*this, allocator);
153 ES2PANDA_ASSERT(clone != nullptr);
154 if (parent != nullptr) {
155 clone->SetParent(parent);
156 }
157
158 clone->SetRange(Range());
159 return clone;
160 }
161
162 } // namespace ark::es2panda::ir
163