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 "tsMethodSignature.h"
17
18 #include <typescript/checker.h>
19 #include <binder/binder.h>
20 #include <binder/scope.h>
21 #include <ir/astDump.h>
22 #include <ir/typeNode.h>
23 #include <ir/ts/tsTypeParameter.h>
24 #include <ir/ts/tsTypeParameterDeclaration.h>
25 #include <ir/expressions/literals/numberLiteral.h>
26
27 namespace panda::es2panda::ir {
28
Iterate(const NodeTraverser &cb) const29 void TSMethodSignature::Iterate(const NodeTraverser &cb) const
30 {
31 cb(key_);
32
33 if (typeParams_) {
34 cb(typeParams_);
35 }
36
37 for (auto *it : params_) {
38 cb(it);
39 }
40
41 if (returnTypeAnnotation_) {
42 cb(returnTypeAnnotation_);
43 }
44 }
45
Dump(ir::AstDumper *dumper) const46 void TSMethodSignature::Dump(ir::AstDumper *dumper) const
47 {
48 dumper->Add({{"type", "TSMethodSignature"},
49 {"computed", computed_},
50 {"optional", optional_},
51 {"isGetAccessor", isGetAccessor_},
52 {"isSetAccessor", isSetAccessor_},
53 {"key", key_},
54 {"params", params_},
55 {"typeParameters", AstDumper::Optional(typeParams_)},
56 {"typeAnnotation", AstDumper::Optional(returnTypeAnnotation_)}});
57 }
58
Compile([[maybe_unused]] compiler::PandaGen *pg) const59 void TSMethodSignature::Compile([[maybe_unused]] compiler::PandaGen *pg) const {}
60
Check(checker::Checker *checker) const61 checker::Type *TSMethodSignature::Check(checker::Checker *checker) const
62 {
63 if (computed_) {
64 checker->CheckComputedPropertyName(key_);
65 }
66
67 checker::ScopeContext scopeCtx(checker, scope_);
68
69 auto *signatureInfo = checker->Allocator()->New<checker::SignatureInfo>(checker->Allocator());
70 checker->CheckFunctionParameterDeclarations(params_, signatureInfo);
71
72 auto *callSignature = checker->Allocator()->New<checker::Signature>(signatureInfo, checker->GlobalAnyType());
73 Variable()->SetTsType(checker->CreateFunctionTypeWithSignature(callSignature));
74
75 if (!returnTypeAnnotation_) {
76 checker->ThrowTypeError(
77 "Method signature, which lacks return-type annotation, implicitly has an 'any' return type.", Start());
78 }
79
80 returnTypeAnnotation_->Check(checker);
81 CHECK_NOT_NULL(callSignature);
82 callSignature->SetReturnType(returnTypeAnnotation_->AsTypeNode()->GetType(checker));
83
84 return nullptr;
85 }
86
UpdateSelf(const NodeUpdater &cb, binder::Binder *binder)87 void TSMethodSignature::UpdateSelf(const NodeUpdater &cb, binder::Binder *binder)
88 {
89 auto scopeCtx = binder::LexicalScope<binder::Scope>::Enter(binder, scope_);
90
91 key_ = std::get<ir::AstNode *>(cb(key_))->AsExpression();
92
93 if (typeParams_) {
94 typeParams_ = std::get<ir::AstNode *>(cb(typeParams_))->AsTSTypeParameterDeclaration();
95 }
96
97 for (auto iter = params_.begin(); iter != params_.end(); iter++) {
98 *iter = std::get<ir::AstNode *>(cb(*iter))->AsExpression();
99 }
100
101 if (returnTypeAnnotation_) {
102 returnTypeAnnotation_ = std::get<ir::AstNode *>(cb(returnTypeAnnotation_))->AsExpression();
103 }
104 }
105
106 } // namespace panda::es2panda::ir
107