Consolidate some TableGen diagnostic helper functions.

TableGen had diagnostic printers sprinkled about in a few places. Pull them
together into a single location in Error.cpp.

llvm-svn: 133568

1 files changed, 43 insertions, 0 deletions

diff --git a/llvm/utils/TableGen/Error.h b/llvm/utils/TableGen/Error.h
new file mode 100644
index 00000000000..b3a01461940
--- /dev/null
+++ b/llvm/utils/TableGen/Error.h
@@ -0,0 +1,43 @@
+//===- Error.h - tblgen error handling helper routines ----------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file contains error handling helper routines to pretty-print diagnostic
+// messages from tblgen.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef ERROR_H
+#define ERROR_H
+
+#include "llvm/Support/SourceMgr.h"
+
+namespace llvm {
+
+class TGError {
+  SMLoc Loc;
+  std::string Message;
+public:
+  TGError(SMLoc loc, const std::string &message) : Loc(loc), Message(message) {}
+
+  SMLoc getLoc() const { return Loc; }
+  const std::string &getMessage() const { return Message; }
+};
+
+void PrintError(SMLoc ErrorLoc, const Twine &Msg);
+void PrintError(const char *Loc, const Twine &Msg);
+void PrintError(const Twine &Msg);
+void PrintError(const TGError &Error);
+
+
+extern SourceMgr SrcMgr;
+
+
+} // end namespace "llvm"
+
+#endif