1 /**
2 * Copyright (c) 2021-2022 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 "undefinedType.h"
17
18 namespace panda::es2panda::checker {
19
ToString(std::stringstream & ss) const20 void UndefinedType::ToString(std::stringstream &ss) const
21 {
22 ss << "undefined";
23 }
24
Identical(TypeRelation * relation,Type * other)25 void UndefinedType::Identical(TypeRelation *relation, Type *other)
26 {
27 if (other->IsUndefinedType()) {
28 relation->Result(true);
29 }
30 }
31
AssignmentSource(TypeRelation * relation,Type * target)32 bool UndefinedType::AssignmentSource(TypeRelation *relation, [[maybe_unused]] Type *target)
33 {
34 relation->Result(!target->IsNeverType());
35 return relation->IsTrue();
36 }
37
AssignmentTarget(TypeRelation * relation,Type * source)38 void UndefinedType::AssignmentTarget([[maybe_unused]] TypeRelation *relation, [[maybe_unused]] Type *source) {}
39
GetTypeFacts() const40 TypeFacts UndefinedType::GetTypeFacts() const
41 {
42 return TypeFacts::UNDEFINED_FACTS;
43 }
44
Instantiate(ArenaAllocator * allocator,TypeRelation * relation,GlobalTypesHolder * globalTypes)45 Type *UndefinedType::Instantiate([[maybe_unused]] ArenaAllocator *allocator, [[maybe_unused]] TypeRelation *relation,
46 [[maybe_unused]] GlobalTypesHolder *globalTypes)
47 {
48 return this;
49 }
50
51 } // namespace panda::es2panda::checker
52