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 "sequenceExpressionHasLastType.h"
17 #include "ir/expressions/sequenceExpression.h"
18
19 namespace ark::es2panda::compiler::ast_verifier {
20
operator ()(CheckContext & ctx,const ir::AstNode * ast)21 [[nodiscard]] CheckResult SequenceExpressionHasLastType::operator()(CheckContext &ctx, const ir::AstNode *ast)
22 {
23 if (!ast->IsSequenceExpression()) {
24 return {CheckDecision::CORRECT, CheckAction::CONTINUE};
25 }
26 const auto *expr = ast->AsSequenceExpression();
27 const auto *last = expr->Sequence().back();
28 if (expr->TsType() == nullptr) {
29 ctx.AddCheckMessage("Sequence expression type is null", *expr, expr->Start());
30 return {CheckDecision::INCORRECT, CheckAction::CONTINUE};
31 }
32 if (last->TsType() == nullptr) {
33 ctx.AddCheckMessage("Sequence expression last type is null", *last, last->Start());
34 return {CheckDecision::INCORRECT, CheckAction::CONTINUE};
35 }
36 if (expr->TsType() != last->TsType()) {
37 ctx.AddCheckMessage("Sequence expression type and last expression type are not the same", *expr, expr->Start());
38 return {CheckDecision::INCORRECT, CheckAction::CONTINUE};
39 }
40 return {CheckDecision::CORRECT, CheckAction::CONTINUE};
41 }
42
43 } // namespace ark::es2panda::compiler::ast_verifier
44