1 //===- FrontendOptions.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 "flang/Frontend/FrontendOptions.h"
10 #include "flang/Evaluate/expression.h"
11 
12 using namespace Fortran::frontend;
13 
14 bool Fortran::frontend::isFixedFormSuffix(llvm::StringRef suffix) {
15   // Note: Keep this list in-sync with flang/test/lit.cfg.py
16   return suffix == "f77" || suffix == "f" || suffix == "F" || suffix == "ff" ||
17       suffix == "for" || suffix == "FOR" || suffix == "fpp" || suffix == "FPP";
18 }
19 
20 bool Fortran::frontend::isFreeFormSuffix(llvm::StringRef suffix) {
21   // Note: Keep this list in-sync with flang/test/lit.cfg.py
22   // TODO: Add Cuda Fortan files (i.e. `*.cuf` and `*.CUF`).
23   return suffix == "f90" || suffix == "F90" || suffix == "ff90" ||
24       suffix == "f95" || suffix == "F95" || suffix == "ff95" ||
25       suffix == "f03" || suffix == "F03" || suffix == "f08" ||
26       suffix == "F08" || suffix == "f18" || suffix == "F18";
27 }
28 
29 bool Fortran::frontend::mustBePreprocessed(llvm::StringRef suffix) {
30   return suffix == "F" || suffix == "FOR" || suffix == "fpp" ||
31       suffix == "FPP" || suffix == "F90" || suffix == "F95" ||
32       suffix == "F03" || suffix == "F08" || suffix == "F18";
33 }
34 
35 InputKind FrontendOptions::GetInputKindForExtension(llvm::StringRef extension) {
36   if (isFixedFormSuffix(extension) || isFreeFormSuffix(extension)) {
37     return Language::Fortran;
38   }
39   return Language::Unknown;
40 }
41