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 #include "forLoopCorrectlyInitialized.h"
17 #include "ir/statements/forInStatement.h"
18 #include "ir/statements/forOfStatement.h"
19 #include "ir/statements/forUpdateStatement.h"
20
21 namespace ark::es2panda::compiler::ast_verifier {
22
operator ()(CheckContext &ctx, const ir::AstNode *ast)23 [[nodiscard]] CheckResult ForLoopCorrectlyInitialized::operator()(CheckContext &ctx, const ir::AstNode *ast)
24 {
25 if (ast->IsForInStatement()) {
26 return HandleForInStatement(ctx, ast);
27 }
28
29 if (ast->IsForOfStatement()) {
30 return HandleForOfStatement(ctx, ast);
31 }
32
33 if (ast->IsForUpdateStatement()) {
34 return HandleForUpdateStatement(ctx, ast);
35 }
36 return {CheckDecision::CORRECT, CheckAction::CONTINUE};
37 }
38
HandleForInStatement(CheckContext &ctx, const ir::AstNode *ast)39 [[nodiscard]] CheckResult ForLoopCorrectlyInitialized::HandleForInStatement(CheckContext &ctx, const ir::AstNode *ast)
40 {
41 auto const *left = ast->AsForInStatement()->Left();
42 if (left == nullptr) {
43 ctx.AddCheckMessage("NULL FOR-IN-LEFT", *ast, ast->Start());
44 return {CheckDecision::INCORRECT, CheckAction::CONTINUE};
45 }
46
47 if (!left->IsIdentifier() && !left->IsVariableDeclaration()) {
48 ctx.AddCheckMessage("INCORRECT FOR-IN-LEFT", *ast, ast->Start());
49 return {CheckDecision::INCORRECT, CheckAction::CONTINUE};
50 }
51
52 return {CheckDecision::CORRECT, CheckAction::CONTINUE};
53 }
54
HandleForOfStatement(CheckContext &ctx, const ir::AstNode *ast)55 [[nodiscard]] CheckResult ForLoopCorrectlyInitialized::HandleForOfStatement(CheckContext &ctx, const ir::AstNode *ast)
56 {
57 auto const *left = ast->AsForOfStatement()->Left();
58 if (left == nullptr) {
59 ctx.AddCheckMessage("NULL FOR-OF-LEFT", *ast, ast->Start());
60 return {CheckDecision::INCORRECT, CheckAction::CONTINUE};
61 }
62
63 if (!left->IsIdentifier() && !left->IsVariableDeclaration()) {
64 ctx.AddCheckMessage("INCORRECT FOR-OF-LEFT", *ast, ast->Start());
65 return {CheckDecision::INCORRECT, CheckAction::CONTINUE};
66 }
67
68 return {CheckDecision::CORRECT, CheckAction::CONTINUE};
69 }
70
HandleForUpdateStatement(CheckContext &ctx, const ir::AstNode *ast)71 [[nodiscard]] CheckResult ForLoopCorrectlyInitialized::HandleForUpdateStatement(CheckContext &ctx,
72 const ir::AstNode *ast)
73 {
74 auto const *test = ast->AsForUpdateStatement()->Test();
75 if (test == nullptr) {
76 auto const *body = ast->AsForUpdateStatement()->Body();
77 if (body == nullptr) {
78 ctx.AddCheckMessage("NULL FOR-TEST AND FOR-BODY", *ast, ast->Start());
79 return {CheckDecision::INCORRECT, CheckAction::CONTINUE};
80 }
81
82 return {CheckDecision::CORRECT, CheckAction::CONTINUE};
83 }
84
85 if (!test->IsExpression()) {
86 ctx.AddCheckMessage("NULL FOR VAR", *ast, ast->Start());
87 return {CheckDecision::INCORRECT, CheckAction::CONTINUE};
88 }
89
90 return {CheckDecision::CORRECT, CheckAction::CONTINUE};
91 }
92
93 } // namespace ark::es2panda::compiler::ast_verifier
94