forked from OSchip/llvm-project
46 lines
1.8 KiB
C++
46 lines
1.8 KiB
C++
//===-- lib/Semantics/check-arithmeticif.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-arithmeticif.h"
|
|
#include "flang/Parser/message.h"
|
|
#include "flang/Parser/parse-tree.h"
|
|
#include "flang/Semantics/tools.h"
|
|
|
|
namespace Fortran::semantics {
|
|
|
|
bool IsNumericExpr(const SomeExpr &expr) {
|
|
auto dynamicType{expr.GetType()};
|
|
return dynamicType && common::IsNumericTypeCategory(dynamicType->category());
|
|
}
|
|
|
|
void ArithmeticIfStmtChecker::Leave(
|
|
const parser::ArithmeticIfStmt &arithmeticIfStmt) {
|
|
// Arithmetic IF statements have been removed from Fortran 2018.
|
|
// The constraints and requirements here refer to the 2008 spec.
|
|
// R853 Check for a scalar-numeric-expr
|
|
// C849 that shall not be of type complex.
|
|
auto &parsedExpr{std::get<parser::Expr>(arithmeticIfStmt.t)};
|
|
if (const auto *expr{GetExpr(parsedExpr)}) {
|
|
if (expr->Rank() > 0) {
|
|
context_.Say(parsedExpr.source,
|
|
"ARITHMETIC IF expression must be a scalar expression"_err_en_US);
|
|
} else if (ExprHasTypeCategory(*expr, common::TypeCategory::Complex)) {
|
|
context_.Say(parsedExpr.source,
|
|
"ARITHMETIC IF expression must not be a COMPLEX expression"_err_en_US);
|
|
} else if (!IsNumericExpr(*expr)) {
|
|
context_.Say(parsedExpr.source,
|
|
"ARITHMETIC IF expression must be a numeric expression"_err_en_US);
|
|
}
|
|
}
|
|
// The labels have already been checked in resolve-labels.
|
|
// TODO: Really? Check that they are really branch target
|
|
// statements and in the same inclusive scope.
|
|
}
|
|
|
|
} // namespace Fortran::semantics
|