1 /**
2 * Copyright (c) 2021-2024 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 "chainExpression.h"
17
18 #include "checker/TSchecker.h"
19 #include "compiler/core/ETSGen.h"
20 #include "compiler/core/pandagen.h"
21 #include "ir/astDump.h"
22 #include "ir/srcDump.h"
23 #include "ir/expressions/memberExpression.h"
24
25 namespace ark::es2panda::ir {
TransformChildren(const NodeTransformer &cb, std::string_view transformationName)26 void ChainExpression::TransformChildren(const NodeTransformer &cb, std::string_view transformationName)
27 {
28 if (auto *transformedNode = cb(expression_); expression_ != transformedNode) {
29 expression_->SetTransformedNode(transformationName, transformedNode);
30 expression_ = transformedNode->AsExpression();
31 }
32 }
33
Iterate(const NodeTraverser &cb) const34 void ChainExpression::Iterate(const NodeTraverser &cb) const
35 {
36 cb(expression_);
37 }
38
Dump(ir::AstDumper *dumper) const39 void ChainExpression::Dump(ir::AstDumper *dumper) const
40 {
41 dumper->Add({{"type", "ChainExpression"}, {"expression", expression_}});
42 }
43
Dump(ir::SrcDumper *dumper) const44 void ChainExpression::Dump(ir::SrcDumper *dumper) const
45 {
46 dumper->Add("("); // affects precedence
47 expression_->Dump(dumper);
48 dumper->Add(")");
49 }
50
Compile(compiler::PandaGen *pg) const51 void ChainExpression::Compile(compiler::PandaGen *pg) const
52 {
53 pg->GetAstCompiler()->Compile(this);
54 }
55
CompileToReg(compiler::PandaGen *pg, compiler::VReg &objReg) const56 void ChainExpression::CompileToReg(compiler::PandaGen *pg, compiler::VReg &objReg) const
57 {
58 compiler::OptionalChain chain(pg, this);
59
60 if (expression_->IsMemberExpression()) {
61 objReg = pg->AllocReg();
62 expression_->AsMemberExpression()->CompileToReg(pg, objReg);
63 } else {
64 objReg = compiler::VReg::Invalid();
65 expression_->Compile(pg);
66 }
67 }
68
Compile(compiler::ETSGen *etsg) const69 void ChainExpression::Compile(compiler::ETSGen *etsg) const
70 {
71 etsg->GetAstCompiler()->Compile(this);
72 }
73
Check(checker::TSChecker *checker)74 checker::Type *ChainExpression::Check(checker::TSChecker *checker)
75 {
76 return checker->GetAnalyzer()->Check(this);
77 }
78
Check(checker::ETSChecker *checker)79 checker::Type *ChainExpression::Check(checker::ETSChecker *checker)
80 {
81 return checker->GetAnalyzer()->Check(this);
82 }
83
Clone(ArenaAllocator *const allocator, AstNode *const parent)84 ChainExpression *ChainExpression::Clone(ArenaAllocator *const allocator, AstNode *const parent)
85 {
86 auto *const expression = expression_ != nullptr ? expression_->Clone(allocator, nullptr)->AsExpression() : nullptr;
87
88 if (auto *const clone = allocator->New<ChainExpression>(expression); clone != nullptr) {
89 if (expression != nullptr) {
90 expression->SetParent(clone);
91 }
92 if (parent != nullptr) {
93 clone->SetParent(parent);
94 }
95 return clone;
96 }
97
98 throw Error(ErrorType::GENERIC, "", CLONE_ALLOCATION_ERROR);
99 }
100 } // namespace ark::es2panda::ir
101