From 2c0f2c74bea4f40acb03b0c7c85d9cfc35feff2d Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Wed, 6 Aug 2003 04:23:04 +0000
Subject: [PATCH] New common interface for backends to use

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7625 91177308-0d34-0410-b5e6-96231b3b80d8
---
 support/tools/TableGen/TableGenBackend.cpp | 17 ++++++++++++++
 support/tools/TableGen/TableGenBackend.h   | 26 ++++++++++++++++++++++
 utils/TableGen/TableGenBackend.cpp         | 17 ++++++++++++++
 utils/TableGen/TableGenBackend.h           | 26 ++++++++++++++++++++++
 4 files changed, 86 insertions(+)
 create mode 100644 support/tools/TableGen/TableGenBackend.cpp
 create mode 100644 support/tools/TableGen/TableGenBackend.h
 create mode 100644 utils/TableGen/TableGenBackend.cpp
 create mode 100644 utils/TableGen/TableGenBackend.h

diff --git a/support/tools/TableGen/TableGenBackend.cpp b/support/tools/TableGen/TableGenBackend.cpp
new file mode 100644
index 00000000000..f00c6eedb74
--- /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 00000000000..b9e8c49d4c5
--- /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
diff --git a/utils/TableGen/TableGenBackend.cpp b/utils/TableGen/TableGenBackend.cpp
new file mode 100644
index 00000000000..f00c6eedb74
--- /dev/null
+++ b/utils/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/utils/TableGen/TableGenBackend.h b/utils/TableGen/TableGenBackend.h
new file mode 100644
index 00000000000..b9e8c49d4c5
--- /dev/null
+++ b/utils/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
-- 
2.34.1