NullaryOp.h revision 37b74a387bb3993387029859c2d9d051c41c724e 
1//===- NullaryOp.h --------------------------------------------------------===//
2//
3//                     The MCLinker Project
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9#ifndef MCLD_SCRIPT_NULLARYOP_H_
10#define MCLD_SCRIPT_NULLARYOP_H_
11
12#include "mcld/Script/Operator.h"
13
14#include <cassert>
15
16namespace mcld {
17
18class Operand;
19class IntOperand;
20class Module;
21class TargetLDBackend;
22
23/** \class NullaryOp
24 *  \brief This class defines the interfaces to an nullary operator token.
25 */
26
27template <Operator::Type TYPE>
28class NullaryOp : public Operator {
29 private:
30  friend class Operator;
31
32  NullaryOp() : Operator(Operator::NULLARY, TYPE) {}
33
34 public:
35  ~NullaryOp() {}
36
37  IntOperand* eval(const Module& pModule, const TargetLDBackend& pBackend);
38
39  void appendOperand(Operand* pOperand) { assert(0); }
40};
41
42template <>
43IntOperand* NullaryOp<Operator::SIZEOF_HEADERS>::eval(const Module&,
44                                                      const TargetLDBackend&);
45template <>
46IntOperand* NullaryOp<Operator::MAXPAGESIZE>::eval(const Module&,
47                                                   const TargetLDBackend&);
48
49template <>
50IntOperand* NullaryOp<Operator::COMMONPAGESIZE>::eval(const Module&,
51                                                      const TargetLDBackend&);
52
53}  // namespace mcld
54
55#endif  // MCLD_SCRIPT_NULLARYOP_H_
56