NullaryOp.h revision 87f34658dec9097d987d254a990ea7f311bfc95f 
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_NULLOP_H
10#define MCLD_SCRIPT_NULLOP_H
11#ifdef ENABLE_UNITTEST
12#include <gtest.h>
13#endif
14
15#include <mcld/Script/Operator.h>
16#include <cassert>
17
18namespace mcld
19{
20
21class Operand;
22class IntOperand;
23class Module;
24class TargetLDBackend;
25
26/** \class NullaryOp
27 *  \brief This class defines the interfaces to an nullary operator token.
28 */
29
30template<Operator::Type TYPE>
31class NullaryOp : public Operator
32{
33private:
34  friend class Operator;
35
36  NullaryOp()
37    : Operator(Operator::NULLARY, TYPE)
38  {}
39
40public:
41  ~NullaryOp()
42  {}
43
44  IntOperand* eval(const Module& pModule, const TargetLDBackend& pBackend);
45
46  void appendOperand(Operand* pOperand)
47  {
48    assert(0);
49  }
50};
51
52template<>
53IntOperand* NullaryOp<Operator::SIZEOF_HEADERS>::eval(const Module&,
54                                                      const TargetLDBackend&);
55template<>
56IntOperand* NullaryOp<Operator::MAXPAGESIZE>::eval(const Module&,
57                                                   const TargetLDBackend&);
58
59template<>
60IntOperand* NullaryOp<Operator::COMMONPAGESIZE>::eval(const Module&,
61                                                      const TargetLDBackend&);
62
63} // namespace of mcld
64
65#endif
66