TernaryOp.h revision f33f6de54db174aa679a4b6d1e040d37e95541c0 
1//===- TernaryOp.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_TERNARYOP_H
10#define MCLD_SCRIPT_TERNARYOP_H
11#ifdef ENABLE_UNITTEST
12#include <gtest.h>
13#endif
14
15#include <mcld/Script/Operator.h>
16#include <cstddef>
17
18namespace mcld
19{
20
21class Operand;
22class IntOperand;
23class Module;
24class TargetLDBackend;
25
26/** \class TernaryOP
27 *  \brief This class defines the interfaces to an binary operator token.
28 */
29
30template<Operator::Type TYPE>
31class TernaryOp : public Operator
32{
33private:
34  friend class Operator;
35
36  TernaryOp()
37    : Operator(Operator::TERNARY, TYPE)
38  {
39    m_pOperand[0] = m_pOperand[1] = m_pOperand[2] = NULL;
40  }
41
42public:
43  ~TernaryOp()
44  {}
45
46  IntOperand* eval(const Module& pModule, const TargetLDBackend& pBackend);
47
48  void appendOperand(Operand* pOperand)
49  {
50    m_pOperand[m_Size++] = pOperand;
51    if (m_Size == 3)
52      m_Size = 0;
53  }
54
55private:
56  size_t m_Size;
57  Operand* m_pOperand[3];
58};
59
60template<>
61IntOperand* TernaryOp<Operator::TERNARY_IF>::eval(const Module&,
62                                                  const TargetLDBackend&);
63
64template<>
65IntOperand*
66TernaryOp<Operator::DATA_SEGMENT_ALIGN>::eval(const Module&,
67                                              const TargetLDBackend&);
68
69} // namespace of mcld
70
71#endif
72