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 "tsTupleType.h"
17
18 #include <util/helpers.h>
19 #include <binder/scope.h>
20 #include <typescript/checker.h>
21 #include <typescript/types/indexInfo.h>
22 #include <ir/astDump.h>
23 #include <ir/typeNode.h>
24 #include <ir/expressions/identifier.h>
25 #include <ir/ts/tsNamedTupleMember.h>
26
27 namespace panda::es2panda::ir {
28
Iterate(const NodeTraverser & cb) const29 void TSTupleType::Iterate(const NodeTraverser &cb) const
30 {
31 for (auto *it : elementTypes_) {
32 cb(it);
33 }
34 }
35
Dump(ir::AstDumper * dumper) const36 void TSTupleType::Dump(ir::AstDumper *dumper) const
37 {
38 dumper->Add({{"type", "TSTupleType"}, {"elementTypes", elementTypes_}});
39 }
40
Compile(compiler::PandaGen * pg) const41 void TSTupleType::Compile([[maybe_unused]] compiler::PandaGen *pg) const {}
42
GetType(checker::Checker * checker) const43 checker::Type *TSTupleType::GetType(checker::Checker *checker) const
44 {
45 auto found = checker->NodeCache().find(this);
46
47 if (found != checker->NodeCache().end()) {
48 return found->second;
49 }
50
51 checker::ObjectDescriptor *desc = checker->Allocator()->New<checker::ObjectDescriptor>(checker->Allocator());
52 checker::NamedTupleMemberPool namedMembers;
53 ArenaVector<checker::ElementFlags> elementFlags(checker->Allocator()->Adapter());
54 checker::ElementFlags combinedFlags = checker::ElementFlags::NO_OPTS;
55 uint32_t minLength = 0;
56 uint32_t index = 0;
57 ArenaVector<checker::Type *> numberIndexTypes(checker->Allocator()->Adapter());
58 for (auto *it : elementTypes_) {
59 util::StringView memberIndex = util::Helpers::ToStringView(checker->Allocator(), index);
60
61 auto *memberVar =
62 binder::Scope::CreateVar(checker->Allocator(), memberIndex, binder::VariableFlags::PROPERTY, it);
63
64 checker::ElementFlags memberFlag = checker::ElementFlags::NO_OPTS;
65 if (it->IsTSNamedTupleMember()) {
66 const ir::TSNamedTupleMember *namedMember = it->AsTSNamedTupleMember();
67 checker::Type *memberType = namedMember->ElementType()->AsTypeNode()->GetType(checker);
68
69 if (namedMember->IsOptional()) {
70 memberVar->AddFlag(binder::VariableFlags::OPTIONAL);
71 memberFlag = checker::ElementFlags::OPTIONAL;
72 } else {
73 memberFlag = checker::ElementFlags::REQUIRED;
74 minLength++;
75 }
76
77 memberType->SetVariable(memberVar);
78 memberVar->SetTsType(memberType);
79 numberIndexTypes.push_back(memberType);
80 namedMembers.insert({memberVar, namedMember->Label()->AsIdentifier()->Name()});
81 } else {
82 checker::Type *memberType = it->AsTypeNode()->GetType(checker);
83 memberType->SetVariable(memberVar);
84 memberVar->SetTsType(memberType);
85 memberFlag = checker::ElementFlags::REQUIRED;
86 numberIndexTypes.push_back(memberType);
87 minLength++;
88 }
89
90 combinedFlags |= memberFlag;
91
92 elementFlags.push_back(memberFlag);
93 desc->properties.push_back(memberVar);
94 index++;
95 }
96
97 uint32_t fixedLength = desc->properties.size();
98
99 checker::Type *numberIndexType = nullptr;
100
101 if (numberIndexTypes.empty()) {
102 numberIndexType = checker->GlobalNeverType();
103 } else if (numberIndexTypes.size() == 1) {
104 numberIndexType = numberIndexTypes[0];
105 } else {
106 numberIndexType = checker->CreateUnionType(std::move(numberIndexTypes));
107 }
108
109 desc->numberIndexInfo = checker->Allocator()->New<checker::IndexInfo>(numberIndexType, "x", false);
110
111 checker::Type *tupleType = checker->CreateTupleType(desc, std::move(elementFlags), combinedFlags, minLength,
112 fixedLength, false, std::move(namedMembers));
113
114 checker->NodeCache().insert({this, tupleType});
115 return tupleType;
116 }
117
Check(checker::Checker * checker) const118 checker::Type *TSTupleType::Check(checker::Checker *checker) const
119 {
120 for (const auto *it : elementTypes_) {
121 it->Check(checker);
122 }
123
124 GetType(checker);
125 return nullptr;
126 }
127
UpdateSelf(const NodeUpdater & cb,binder::Binder * binder)128 void TSTupleType::UpdateSelf(const NodeUpdater &cb, [[maybe_unused]] binder::Binder *binder)
129 {
130 for (auto iter = elementTypes_.begin(); iter != elementTypes_.end(); iter++) {
131 *iter = std::get<ir::AstNode *>(cb(*iter))->AsExpression();
132 }
133 }
134
135 } // namespace panda::es2panda::ir
136