TernaryOp.h revision 37b74a387bb3993387029859c2d9d051c41c724e 
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
12#include "mcld/Script/Operator.h"
13
14#include <cstddef>
15
16namespace mcld {
17
18class IntOperand;
19class Module;
20class Operand;
21class TargetLDBackend;
22
23/** \class TernaryOP
24 *  \brief This class defines the interfaces to an binary operator token.
25 */
26
27template <Operator::Type TYPE>
28class TernaryOp : public Operator {
29 private:
30  friend class Operator;
31
32  TernaryOp() : Operator(Operator::TERNARY, TYPE) {
33    m_pOperand[0] = m_pOperand[1] = m_pOperand[2] = NULL;
34  }
35
36 public:
37  ~TernaryOp() {}
38
39  IntOperand* eval(const Module& pModule, const TargetLDBackend& pBackend);
40
41  void appendOperand(Operand* pOperand) {
42    m_pOperand[m_Size++] = pOperand;
43    if (m_Size == 3)
44      m_Size = 0;
45  }
46
47 private:
48  size_t m_Size;
49  Operand* m_pOperand[3];
50};
51
52template <>
53IntOperand* TernaryOp<Operator::TERNARY_IF>::eval(const Module&,
54                                                  const TargetLDBackend&);
55
56template <>
57IntOperand* TernaryOp<Operator::DATA_SEGMENT_ALIGN>::eval(
58    const Module&,
59    const TargetLDBackend&);
60
61}  // namespace mcld
62
63#endif  // MCLD_SCRIPT_TERNARYOP_H_
64