freebsd-dev/contrib/llvm/utils/TableGen/TableGenBackend.h

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//===- TableGenBackend.h - Base class for TableGen Backends -----*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// 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
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#include "llvm/Support/raw_ostream.h"
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#include <string>
namespace llvm {
class Record;
class RecordKeeper;
struct TableGenBackend {
virtual ~TableGenBackend() {}
// run - All TableGen backends should implement the run method, which should
// be the main entry point.
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virtual void run(raw_ostream &OS) = 0;
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public: // Useful helper routines...
/// EmitSourceFileHeader - Output a LLVM style file header to the specified
/// ostream.
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void EmitSourceFileHeader(const std::string &Desc, raw_ostream &OS) const;
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};
} // End llvm namespace
#endif