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 "returnStatement.h"
17
18 #include "checker/TSchecker.h"
19 #include "compiler/core/pandagen.h"
20 #include "compiler/core/ETSGen.h"
21 #include "ir/astDump.h"
22 #include "ir/srcDump.h"
23
24 namespace panda::es2panda::ir {
TransformChildren(const NodeTransformer & cb)25 void ReturnStatement::TransformChildren(const NodeTransformer &cb)
26 {
27 if (argument_ != nullptr) {
28 argument_ = cb(argument_)->AsExpression();
29 }
30 }
31
Iterate(const NodeTraverser & cb) const32 void ReturnStatement::Iterate(const NodeTraverser &cb) const
33 {
34 if (argument_ != nullptr) {
35 cb(argument_);
36 }
37 }
38
Dump(ir::AstDumper * dumper) const39 void ReturnStatement::Dump(ir::AstDumper *dumper) const
40 {
41 dumper->Add({{"type", "ReturnStatement"}, {"argument", AstDumper::Nullish(argument_)}});
42 }
43
Dump(ir::SrcDumper * dumper) const44 void ReturnStatement::Dump(ir::SrcDumper *dumper) const
45 {
46 dumper->Add("return");
47 if (argument_ != nullptr) {
48 dumper->Add(" ");
49 argument_->Dump(dumper);
50 }
51 dumper->Add(";");
52 }
53
Compile(compiler::PandaGen * pg) const54 void ReturnStatement::Compile([[maybe_unused]] compiler::PandaGen *pg) const
55 {
56 pg->GetAstCompiler()->Compile(this);
57 }
58
Compile(compiler::ETSGen * etsg) const59 void ReturnStatement::Compile([[maybe_unused]] compiler::ETSGen *etsg) const
60 {
61 etsg->GetAstCompiler()->Compile(this);
62 }
63
Check(checker::TSChecker * checker)64 checker::Type *ReturnStatement::Check([[maybe_unused]] checker::TSChecker *checker)
65 {
66 return checker->GetAnalyzer()->Check(this);
67 }
68
Check(checker::ETSChecker * checker)69 checker::Type *ReturnStatement::Check(checker::ETSChecker *checker)
70 {
71 return checker->GetAnalyzer()->Check(this);
72 }
73
SetReturnType(checker::ETSChecker * checker,checker::Type * type)74 void ReturnStatement::SetReturnType(checker::ETSChecker *checker, checker::Type *type)
75 {
76 returnType_ = type;
77 if (argument_ != nullptr) {
78 checker::Type *argumentType = argument_->Check(checker);
79 if (type->HasTypeFlag(checker::TypeFlag::ETS_ARRAY_OR_OBJECT) &&
80 !argumentType->HasTypeFlag(checker::TypeFlag::ETS_ARRAY_OR_OBJECT)) {
81 auto *const relation = checker->Relation();
82 relation->SetNode(argument_);
83 relation->SetFlags(checker::TypeRelationFlag::NONE);
84
85 argumentType = checker->PrimitiveTypeAsETSBuiltinType(argumentType);
86 if (argumentType == nullptr) {
87 checker->ThrowTypeError("Invalid return statement expression", argument_->Start());
88 }
89 argument_->AddBoxingUnboxingFlags(checker->GetBoxingFlag(argumentType));
90
91 relation->SetNode(nullptr);
92 }
93 }
94 }
95
SetArgument(Expression * arg)96 void ReturnStatement::SetArgument(Expression *arg)
97 {
98 argument_ = arg;
99 arg->SetParent(this);
100 }
101 } // namespace panda::es2panda::ir
102