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