path: root/utils/TableGen/Record.h

//===- Record.h - Classes to represent Table Records ------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines the main TableGen data structures, including the TableGen
// types, values, and high-level data structures.
//
//===----------------------------------------------------------------------===//

#ifndef RECORD_H
#define RECORD_H

#include "llvm/Support/DataTypes.h"
#include <string>
#include <vector>
#include <map>
#include <ostream>
#include <cassert>

namespace llvm {

// RecTy subclasses.
class BitRecTy;
class BitsRecTy;
class IntRecTy;
class StringRecTy;
class ListRecTy;
class CodeRecTy;
class DagRecTy;
class RecordRecTy;

// Init subclasses.
struct Init;
class UnsetInit;
class BitInit;
class BitsInit;
class IntInit;
class StringInit;
class CodeInit;
class ListInit;
class BinOpInit;
class DefInit;
class DagInit;
class TypedInit;
class VarInit;
class FieldInit;
class VarBitInit;
class VarListElementInit;

// Other classes.
class Record;
class RecordVal;

//===----------------------------------------------------------------------===//
//  Type Classes
//===----------------------------------------------------------------------===//

struct RecTy {
  virtual ~RecTy() {}

  virtual std::string getAsString() const = 0;
  void print(std::ostream &OS) const { OS << getAsString(); }
  void dump() const;

  /// typeIsConvertibleTo - Return true if all values of 'this' type can be
  /// converted to the specified type.
  virtual bool typeIsConvertibleTo(const RecTy *RHS) const = 0;

public:   // These methods should only be called from subclasses of Init
  virtual Init *convertValue( UnsetInit *UI) { return 0; }
  virtual Init *convertValue(   BitInit *BI) { return 0; }
  virtual Init *convertValue(  BitsInit *BI) { return 0; }
  virtual Init *convertValue(   IntInit *II) { return 0; }
  virtual Init *convertValue(StringInit *SI) { return 0; }
  virtual Init *convertValue(  ListInit *LI) { return 0; }
  virtual Init *convertValue( BinOpInit *UI) { return 0; }
  virtual Init *convertValue(  CodeInit *CI) { return 0; }
  virtual Init *convertValue(VarBitInit *VB) { return 0; }
  virtual Init *convertValue(   DefInit *DI) { return 0; }
  virtual Init *convertValue(   DagInit *DI) { return 0; }
  virtual Init *convertValue( TypedInit *TI) { return