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 "tsIndexSignature.h"
17
18 #include <typescript/checker.h>
19 #include <ir/astDump.h>
20 #include <ir/typeNode.h>
21 #include <ir/expressions/identifier.h>
22
23 namespace panda::es2panda::ir {
24
Kind() const25 TSIndexSignature::TSIndexSignatureKind TSIndexSignature::Kind() const
26 {
27 return param_->AsIdentifier()->TypeAnnotation()->IsTSNumberKeyword() ? TSIndexSignatureKind::NUMBER
28 : TSIndexSignatureKind::STRING;
29 }
30
Iterate(const NodeTraverser & cb) const31 void TSIndexSignature::Iterate(const NodeTraverser &cb) const
32 {
33 cb(param_);
34 cb(typeAnnotation_);
35 }
36
Dump(ir::AstDumper * dumper) const37 void TSIndexSignature::Dump(ir::AstDumper *dumper) const
38 {
39 dumper->Add({{"type", "TSIndexSignature"},
40 {"parameters", param_},
41 {"typeAnnotation", typeAnnotation_},
42 {"readonly", readonly_}});
43 }
44
Compile(compiler::PandaGen * pg) const45 void TSIndexSignature::Compile([[maybe_unused]] compiler::PandaGen *pg) const {}
46
Check(checker::Checker * checker) const47 checker::Type *TSIndexSignature::Check(checker::Checker *checker) const
48 {
49 auto found = checker->NodeCache().find(this);
50 if (found != checker->NodeCache().end()) {
51 return found->second;
52 }
53
54 const util::StringView ¶mName = param_->AsIdentifier()->Name();
55 typeAnnotation_->Check(checker);
56 checker::Type *indexType = typeAnnotation_->AsTypeNode()->GetType(checker);
57 checker::IndexInfo *info =
58 checker->Allocator()->New<checker::IndexInfo>(indexType, paramName, readonly_, this->Start());
59 checker::ObjectDescriptor *desc = checker->Allocator()->New<checker::ObjectDescriptor>(checker->Allocator());
60 checker::ObjectType *placeholder = checker->Allocator()->New<checker::ObjectLiteralType>(desc);
61
62 if (Kind() == ir::TSIndexSignature::TSIndexSignatureKind::NUMBER) {
63 placeholder->Desc()->numberIndexInfo = info;
64 } else {
65 placeholder->Desc()->stringIndexInfo = info;
66 }
67
68 checker->NodeCache().insert({this, placeholder});
69
70 return placeholder;
71 }
72
UpdateSelf(const NodeUpdater & cb,binder::Binder * binder)73 void TSIndexSignature::UpdateSelf(const NodeUpdater &cb, [[maybe_unused]] binder::Binder *binder)
74 {
75 param_ = std::get<ir::AstNode *>(cb(param_))->AsExpression();
76 typeAnnotation_ = std::get<ir::AstNode *>(cb(typeAnnotation_))->AsExpression();
77 }
78
79 } // namespace panda::es2panda::ir
80