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-rw-r--r--support/tools/TableGen/TableGenBackend.cpp17
-rw-r--r--support/tools/TableGen/TableGenBackend.h26
2 files changed, 43 insertions, 0 deletions
diff --git a/support/tools/TableGen/TableGenBackend.cpp b/support/tools/TableGen/TableGenBackend.cpp
new file mode 100644
index 0000000..f00c6ee
--- /dev/null
+++ b/support/tools/TableGen/TableGenBackend.cpp
@@ -0,0 +1,17 @@
+//===- TableGenBackend.cpp - Base class for TableGen Backends ---*- C++ -*-===//
+//
+// This file provides useful services for TableGen backends...
+//
+//===----------------------------------------------------------------------===//
+
+#include "TableGenBackend.h"
+#include <iostream>
+
+void TableGenBackend::EmitSourceFileHeader(const std::string &Desc,
+ std::ostream &OS) {
+ OS << "//===- TableGen'erated file -------------------------------------*-"
+ " C++ -*-===//\n//\n// " << Desc << "\n//\n// Automatically generate"
+ "d file, do not edit!\n//\n//===------------------------------------"
+ "----------------------------------===//\n\n";
+}
+
diff --git a/support/tools/TableGen/TableGenBackend.h b/support/tools/TableGen/TableGenBackend.h
new file mode 100644
index 0000000..b9e8c49
--- /dev/null
+++ b/support/tools/TableGen/TableGenBackend.h
@@ -0,0 +1,26 @@
+//===- TableGenBackend.h - Base class for TableGen Backends -----*- C++ -*-===//
+//
+// The TableGenBackend class is provided as a common interface for all TableGen
+// backends. It provides useful services and an standardized interface.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef TABLEGENBACKEND_H
+#define TABLEGENBACKEND_H
+
+#include <string>
+#include <iosfwd>
+
+struct TableGenBackend {
+
+ // run - All TableGen backends should implement the run method, which should
+ // be the main entry point.
+ virtual void run(std::ostream &OS) = 0;
+
+
+public: // Useful helper routines...
+ void EmitSourceFileHeader(const std::string &Desc, std::ostream &OS) const;
+
+};
+
+#endif