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 "variableNameIdentifierNameSame.h"
17 #include "ir/expressions/identifier.h"
18 #include "checker/types/ets/etsEnumType.h"
19 #include "ir/expressions/memberExpression.h"
20 #include "ir/ets/etsImportDeclaration.h"
21
22 namespace ark::es2panda::compiler::ast_verifier {
23
operator ()(CheckContext & ctx,const ir::AstNode * ast)24 [[nodiscard]] CheckResult VariableNameIdentifierNameSame::operator()(CheckContext &ctx, const ir::AstNode *ast)
25 {
26 if (!ast->IsIdentifier()) {
27 return {CheckDecision::CORRECT, CheckAction::CONTINUE};
28 }
29 const auto *id = ast->AsIdentifier();
30 const auto variable = ast->AsIdentifier()->Variable();
31 if (variable == nullptr || variable->Declaration() == nullptr || variable->Declaration()->Node() == nullptr) {
32 return {CheckDecision::CORRECT, CheckAction::CONTINUE};
33 }
34 const auto variableNode = variable->Declaration()->Node();
35 // NOTE(psaykerone): skip because, this exceptions need to be fixed in checker and lowering
36 if (variableNode->IsExported() || variableNode->IsExportedType() || variableNode->IsDefaultExported() ||
37 id->Name().Utf8().find("field") == 0 || variable->Name().Utf8().find("field") == 0) {
38 return {CheckDecision::CORRECT, CheckAction::CONTINUE};
39 }
40 if (id->Name() == variable->Name()) {
41 return {CheckDecision::CORRECT, CheckAction::CONTINUE};
42 }
43
44 // For dynamic imports imported identifier name does not match variable name
45 // Example:
46 // import { A as AA } from "dynamic_js_import_tests"
47 // Variable name will be AA
48 // But imported identifier name is A
49 auto parent = ast->Parent();
50 while (parent != nullptr) {
51 if (parent->IsETSImportDeclaration() && parent->AsETSImportDeclaration()->IsPureDynamic()) {
52 return {CheckDecision::CORRECT, CheckAction::CONTINUE};
53 }
54
55 parent = parent->Parent();
56 }
57
58 parent = id->Parent();
59 if (parent->IsMemberExpression() && parent->AsMemberExpression()->Object()->TsType()->IsETSStringEnumType()) {
60 const bool isValueOfMethod = (id->Name() == checker::ETSEnumType::VALUE_OF_METHOD_NAME);
61 const bool isToStringMethod = (variable->Name() == checker::ETSEnumType::TO_STRING_METHOD_NAME);
62 if (isValueOfMethod && isToStringMethod) {
63 // For string enums valueOf method calls toString method
64 return {CheckDecision::CORRECT, CheckAction::CONTINUE};
65 }
66 }
67
68 ctx.AddCheckMessage("IDENTIFIER_NAME_DIFFERENCE", *id, id->Start());
69 return {CheckDecision::INCORRECT, CheckAction::CONTINUE};
70 }
71
72 } // namespace ark::es2panda::compiler::ast_verifier
73