1 /*
2 * Copyright (c) 2024-2025 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 "variableNameIdentifierNameSame.h"
17 #include "ir/expressions/identifier.h"
18 #include "ir/expressions/memberExpression.h"
19 #include "ir/ets/etsImportDeclaration.h"
20
21 namespace ark::es2panda::compiler::ast_verifier {
22
operator ()(const ir::AstNode * ast)23 [[nodiscard]] CheckResult VariableNameIdentifierNameSame::operator()(const ir::AstNode *ast)
24 {
25 if (!ast->IsIdentifier()) {
26 return {CheckDecision::CORRECT, CheckAction::CONTINUE};
27 }
28 const auto *id = ast->AsIdentifier();
29 const auto variable = ast->AsIdentifier()->Variable();
30 if (variable == nullptr || variable->Declaration() == nullptr || variable->Declaration()->Node() == nullptr) {
31 return {CheckDecision::CORRECT, CheckAction::CONTINUE};
32 }
33 const auto variableNode = variable->Declaration()->Node();
34 // NOTE(psaykerone): skip because, this exceptions need to be fixed in checker and lowering
35 if (variableNode->IsExported() || variableNode->IsDefaultExported() || variableNode->HasExportAlias() ||
36 id->Name().Utf8().find("field") == 0 || variable->Name().Utf8().find("field") == 0) {
37 return {CheckDecision::CORRECT, CheckAction::CONTINUE};
38 }
39 if (id->Name() == variable->Name()) {
40 return {CheckDecision::CORRECT, CheckAction::CONTINUE};
41 }
42
43 // For dynamic imports imported identifier name does not match variable name
44 // Example:
45 // import { A as AA } from "dynamic_import_tests"
46 // Variable name will be AA
47 // But imported identifier name is A
48 auto parent = ast->Parent();
49 while (parent != nullptr) {
50 if (parent->IsETSImportDeclaration() && parent->AsETSImportDeclaration()->IsPureDynamic()) {
51 return {CheckDecision::CORRECT, CheckAction::CONTINUE};
52 }
53
54 parent = parent->Parent();
55 }
56
57 AddCheckMessage("IDENTIFIER_NAME_DIFFERENCE", *id);
58 return {CheckDecision::INCORRECT, CheckAction::CONTINUE};
59 }
60
61 } // namespace ark::es2panda::compiler::ast_verifier
62