1 /*
2  * Copyright (c) 2024 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 #ifndef ES2PANDA_COMPILER_CORE_AST_VERIFIER_CHECKINFINITELOOP_H
17 #define ES2PANDA_COMPILER_CORE_AST_VERIFIER_CHECKINFINITELOOP_H
18 
19 #include "checkContext.h"
20 
21 namespace ark::es2panda::compiler::ast_verifier {
22 
23 class CheckInfiniteLoop {
24 public:
CheckInfiniteLoop([[maybe_unused]] ArenaAllocator &allocator)25     explicit CheckInfiniteLoop([[maybe_unused]] ArenaAllocator &allocator) {}
26     [[nodiscard]] CheckResult operator()(CheckContext &ctx, const ir::AstNode *ast);
27 
28 private:
29     bool ConditionIsAlwaysTrue(const ir::Expression *const test) const;
30     bool HasBreakOrReturnStatement(const ir::Statement *const body) const;
31     [[nodiscard]] CheckResult HandleWhileStatement(CheckContext &ctx, const ir::WhileStatement *const stmt) const;
32     [[nodiscard]] CheckResult HandleDoWhileStatement(CheckContext &ctx, const ir::DoWhileStatement *const stmt) const;
33     [[nodiscard]] CheckResult HandleForUpdateStatement(CheckContext &ctx,
34                                                        const ir::ForUpdateStatement *const stmt) const;
35 };
36 
37 }  // namespace ark::es2panda::compiler::ast_verifier
38 
39 #endif  // ES2PANDA_COMPILER_CORE_AST_VERIFIER_CHECKINFINITELOOP_H
40