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 <ir/astDump.h>
20 #include <ir/typeNode.h>
21 #include <ir/ts/tsTypeParameterDeclaration.h>
22
23 namespace panda::es2panda::ir {
24
Iterate(const NodeTraverser & cb) const25 void TSMethodSignature::Iterate(const NodeTraverser &cb) const
26 {
27 cb(key_);
28
29 if (typeParams_) {
30 cb(typeParams_);
31 }
32
33 for (auto *it : params_) {
34 cb(it);
35 }
36
37 if (returnTypeAnnotation_) {
38 cb(returnTypeAnnotation_);
39 }
40 }
41
Dump(ir::AstDumper * dumper) const42 void TSMethodSignature::Dump(ir::AstDumper *dumper) const
43 {
44 dumper->Add({{"type", "TSMethodSignature"},
45 {"computed", computed_},
46 {"optional", optional_},
47 {"isGetAccessor", isGetAccessor_},
48 {"isSetAccessor", isSetAccessor_},
49 {"key", key_},
50 {"params", params_},
51 {"typeParameters", AstDumper::Optional(typeParams_)},
52 {"typeAnnotation", AstDumper::Optional(returnTypeAnnotation_)}});
53 }
54
Compile(compiler::PandaGen * pg) const55 void TSMethodSignature::Compile([[maybe_unused]] compiler::PandaGen *pg) const {}
56
Check(checker::Checker * checker) const57 checker::Type *TSMethodSignature::Check(checker::Checker *checker) const
58 {
59 if (computed_) {
60 checker->CheckComputedPropertyName(key_);
61 }
62
63 checker::ScopeContext scopeCtx(checker, scope_);
64
65 auto *signatureInfo = checker->Allocator()->New<checker::SignatureInfo>(checker->Allocator());
66 checker->CheckFunctionParameterDeclarations(params_, signatureInfo);
67
68 auto *callSignature = checker->Allocator()->New<checker::Signature>(signatureInfo, checker->GlobalAnyType());
69 Variable()->SetTsType(checker->CreateFunctionTypeWithSignature(callSignature));
70
71 if (!returnTypeAnnotation_) {
72 checker->ThrowTypeError(
73 "Method signature, which lacks return-type annotation, implicitly has an 'any' return type.", Start());
74 }
75
76 returnTypeAnnotation_->Check(checker);
77 CHECK_NOT_NULL(callSignature);
78 callSignature->SetReturnType(returnTypeAnnotation_->AsTypeNode()->GetType(checker));
79
80 return nullptr;
81 }
82
UpdateSelf(const NodeUpdater & cb,binder::Binder * binder)83 void TSMethodSignature::UpdateSelf(const NodeUpdater &cb, binder::Binder *binder)
84 {
85 auto scopeCtx = binder::LexicalScope<binder::Scope>::Enter(binder, scope_);
86
87 key_ = std::get<ir::AstNode *>(cb(key_))->AsExpression();
88
89 if (typeParams_) {
90 typeParams_ = std::get<ir::AstNode *>(cb(typeParams_))->AsTSTypeParameterDeclaration();
91 }
92
93 for (auto iter = params_.begin(); iter != params_.end(); iter++) {
94 *iter = std::get<ir::AstNode *>(cb(*iter))->AsExpression();
95 }
96
97 if (returnTypeAnnotation_) {
98 returnTypeAnnotation_ = std::get<ir::AstNode *>(cb(returnTypeAnnotation_))->AsExpression();
99 }
100 }
101
102 } // namespace panda::es2panda::ir
103