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//===-- lib/Semantics/check-stop.cpp --------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "check-stop.h"
#include "flang/Common/Fortran.h"
#include "flang/Evaluate/expression.h"
#include "flang/Parser/parse-tree.h"
#include "flang/Semantics/semantics.h"
#include "flang/Semantics/tools.h"
#include <optional>
namespace Fortran::semantics {
void StopChecker::Enter(const parser::StopStmt &stmt) {
const auto &stopCode{std::get<std::optional<parser::StopCode>>(stmt.t)};
if (const auto *expr{GetExpr(context_, stopCode)}) {
const parser::CharBlock &source{parser::FindSourceLocation(stopCode)};
if (ExprHasTypeCategory(*expr, common::TypeCategory::Integer)) {
// C1171 default kind
if (!ExprTypeKindIsDefault(*expr, context_)) {
context_.Say(
source, "INTEGER stop code must be of default kind"_err_en_US);
}
} else if (ExprHasTypeCategory(*expr, common::TypeCategory::Character)) {
// R1162 spells scalar-DEFAULT-char-expr
if (!ExprTypeKindIsDefault(*expr, context_)) {
context_.Say(
source, "CHARACTER stop code must be of default kind"_err_en_US);
}
} else {
context_.Say(
source, "Stop code must be of INTEGER or CHARACTER type"_err_en_US);
}
}
}
} // namespace Fortran::semantics
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