1 //===- llvm/TableGen/TableGenBackend.h - Backend base class -----*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // The TableGenBackend class is provided as a common interface for all TableGen
11 // backends. It provides useful services and an standardized interface.
13 //===----------------------------------------------------------------------===//
15 #ifndef LLVM_TABLEGEN_TABLEGENBACKEND_H
16 #define LLVM_TABLEGEN_TABLEGENBACKEND_H
18 #include "llvm/Support/raw_ostream.h"
25 struct TableGenBackend {
26 virtual void anchor();
27 virtual ~TableGenBackend() {}
29 // run - All TableGen backends should implement the run method, which should
30 // be the main entry point.
31 virtual void run(raw_ostream &OS) = 0;
34 public: // Useful helper routines...
35 /// EmitSourceFileHeader - Output a LLVM style file header to the specified
37 void EmitSourceFileHeader(StringRef Desc, raw_ostream &OS) const;
41 } // End llvm namespace