1 //===-- lib/Semantics/check-if-stmt.cpp -----------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #include "check-if-stmt.h"
10 #include "flang/Parser/message.h"
11 #include "flang/Parser/parse-tree.h"
12 #include "flang/Semantics/tools.h"
13 
14 namespace Fortran::semantics {
15 
Leave(const parser::IfStmt & ifStmt)16 void IfStmtChecker::Leave(const parser::IfStmt &ifStmt) {
17   // C1143 Check that the action stmt is not an if stmt
18   const auto &body{
19       std::get<parser::UnlabeledStatement<parser::ActionStmt>>(ifStmt.t)};
20   if (std::holds_alternative<common::Indirection<parser::IfStmt>>(
21           body.statement.u)) {
22     context_.Say(
23         body.source, "IF statement is not allowed in IF statement"_err_en_US);
24   }
25 }
26 
27 } // namespace Fortran::semantics
28