| //===- 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 |
| |
| #include <string> |
| #include <iosfwd> |
| |
| 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. |
| virtual void run(std::ostream &OS) = 0; |
| |
| |
| public: // Useful helper routines... |
| /// EmitSourceFileHeader - Output a LLVM style file header to the specified |
| /// ostream. |
| void EmitSourceFileHeader(const std::string &Desc, std::ostream &OS) const; |
| |
| }; |
| |
| } // End llvm namespace |
| |
| #endif |
