1 files changed, 70 insertions, 0 deletions
diff --git a/clang/lib/Testing/CommandLineArgs.cpp b/clang/lib/Testing/CommandLineArgs.cpp
new file mode 100644
index 0000000000000..cd4d8c188da90
--- /dev/null
+++ b/clang/lib/Testing/CommandLineArgs.cpp
@@ -0,0 +1,70 @@
+//===--- CommandLineArgs.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 "clang/Testing/CommandLineArgs.h"
+#include "llvm/Support/ErrorHandling.h"
+
+namespace clang {
+
+std::vector<std::string> getCommandLineArgsForTesting(TestLanguage Lang) {
+  std::vector<std::string> Args;
+  // Test with basic arguments.
+  switch (Lang) {
+  case Lang_C89:
+    Args = {"-x", "c", "-std=c89"};
+    break;
+  case Lang_C99:
+    Args = {"-x", "c", "-std=c99"};
+    break;
+  case Lang_CXX03:
+    Args = {"-std=c++03", "-frtti"};
+    break;
+  case Lang_CXX11:
+    Args = {"-std=c++11", "-frtti"};
+    break;
+  case Lang_CXX14:
+    Args = {"-std=c++14", "-frtti"};
+    break;
+  case Lang_CXX17:
+    Args = {"-std=c++17", "-frtti"};
+    break;
+  case Lang_CXX20:
+    Args = {"-std=c++20", "-frtti"};
+    break;
+  case Lang_OBJCXX:
+    Args = {"-x", "objective-c++", "-frtti"};
+    break;
+  case Lang_OpenCL:
+    llvm_unreachable("Not implemented yet!");
+  }
+  return Args;
+}
+
+StringRef getFilenameForTesting(TestLanguage Lang) {
+  switch (Lang) {
+  case Lang_C89:
+  case Lang_C99:
+    return "input.c";
+
+  case Lang_CXX03:
+  case Lang_CXX11:
+  case Lang_CXX14:
+  case Lang_CXX17:
+  case Lang_CXX20:
+    return "input.cc";
+
+  case Lang_OpenCL:
+    return "input.cl";
+
+  case Lang_OBJCXX:
+    return "input.mm";
+  }
+  llvm_unreachable("Unhandled TestLanguage enum");
+}
+
+} // end namespace clang