summaryrefslogtreecommitdiffstats
path: root/test/SemaTemplate/current-instantiation.cpp
blob: ccef811e22243837f610a8f356336298d9268d55 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
// RUN: %clang_cc1 -fsyntax-only -verify %s

// This test concerns the identity of dependent types within the
// canonical type system, specifically focusing on the difference
// between members of the current instantiation and membmers of an
// unknown specialization. This considers C++ [temp.type], which
// specifies type equivalence within a template, and C++0x
// [temp.dep.type], which defines what it means to be a member of the
// current instantiation.

template<typename T, typename U>
struct X0 {
  typedef T T_type;
  typedef U U_type;

  void f0(T&); // expected-note{{previous}}
  void f0(typename X0::U_type&);
  void f0(typename X0::T_type&); // expected-error{{redecl}}

  void f1(T&); // expected-note{{previous}}
  void f1(typename X0::U_type&);
  void f1(typename X0<T, U>::T_type&); // expected-error{{redecl}}

  void f2(T&); // expected-note{{previous}}
  void f2(typename X0::U_type&);
  void f2(typename X0<T_type, U_type>::T_type&); // expected-error{{redecl}}

  void f3(T&); // expected-note{{previous}}
  void f3(typename X0::U_type&);
  void f3(typename ::X0<T_type, U_type>::T_type&); // expected-error{{redecl}}

  struct X1 {
    typedef T my_T_type;

    void g0(T&); // expected-note{{previous}}
    void g0(typename X0::U_type&);
    void g0(typename X0::T_type&); // expected-error{{redecl}}

    void g1(T&); // expected-note{{previous}}
    void g1(typename X0::U_type&);
    void g1(typename X0<T, U>::T_type&); // expected-error{{redecl}}
    
    void g2(T&); // expected-note{{previous}}
    void g2(typename X0::U_type&);
    void g2(typename X0<T_type, U_type>::T_type&); // expected-error{{redecl}}
    
    void g3(T&); // expected-note{{previous}}
    void g3(typename X0::U_type&);
    void g3(typename ::X0<T_type, U_type>::T_type&); // expected-error{{redecl}}

    void g4(T&); // expected-note{{previous}}
    void g4(typename X0::U_type&);
    void g4(typename X1::my_T_type&); // expected-error{{redecl}}

    void g5(T&); // expected-note{{previous}}
    void g5(typename X0::U_type&);
    void g5(typename X0::X1::my_T_type&); // expected-error{{redecl}}

    void g6(T&); // expected-note{{previous}}
    void g6(typename X0::U_type&);
    void g6(typename X0<T, U>::X1::my_T_type&); // expected-error{{redecl}}

    void g7(T&); // expected-note{{previous}}
    void g7(typename X0::U_type&);
    void g7(typename ::X0<typename X1::my_T_type, U_type>::X1::my_T_type&); // expected-error{{redecl}}

    void g8(T&); // expected-note{{previous}}
    void g8(typename X0<U, T_type>::T_type&);
    void g8(typename ::X0<typename X0<T_type, U>::X1::my_T_type, U_type>::X1::my_T_type&); // expected-error{{redecl}}
  };
};


template<typename T, typename U>
struct X0<T*, U*> {
  typedef T T_type;
  typedef U U_type;
  typedef T* Tptr;
  typedef U* Uptr;
  
  void f0(T&); // expected-note{{previous}}
  void f0(typename X0::U_type&);
  void f0(typename X0::T_type&); // expected-error{{redecl}}
  
  void f1(T&); // expected-note{{previous}}
  void f1(typename X0::U_type&);
  void f1(typename X0<T*, U*>::T_type&); // expected-error{{redecl}}
  
  void f2(T&); // expected-note{{previous}}
  void f2(typename X0::U_type&);
  void f2(typename X0<T_type*, U_type*>::T_type&); // expected-error{{redecl}}
  
  void f3(T&); // expected-note{{previous}}
  void f3(typename X0::U_type&);
  void f3(typename ::X0<T_type*, U_type*>::T_type&); // expected-error{{redecl}}

  void f4(T&); // expected-note{{previous}}
  void f4(typename X0::U_type&);
  void f4(typename ::X0<Tptr, Uptr>::T_type&); // expected-error{{redecl}}
  
  void f5(X0*); // expected-note{{previous}}
  void f5(::X0<T, U>*);
  void f5(::X0<T*, U*>*); // expected-error{{redecl}}
  
  struct X2 {
    typedef T my_T_type;
    
    void g0(T&); // expected-note{{previous}}
    void g0(typename X0::U_type&);
    void g0(typename X0::T_type&); // expected-error{{redecl}}
    
    void g1(T&); // expected-note{{previous}}
    void g1(typename X0::U_type&);
    void g1(typename X0<T*, U*>::T_type&); // expected-error{{redecl}}
    
    void g2(T&); // expected-note{{previous}}
    void g2(typename X0::U_type&);
    void g2(typename X0<T_type*, U_type*>::T_type&); // expected-error{{redecl}}
    
    void g3(T&); // expected-note{{previous}}
    void g3(typename X0::U_type&);
    void g3(typename ::X0<T_type*, U_type*>::T_type&); // expected-error{{redecl}}
    
    void g4(T&); // expected-note{{previous}}
    void g4(typename X0::U_type&);
    void g4(typename X2::my_T_type&); // expected-error{{redecl}}
    
    void g5(T&); // expected-note{{previous}}
    void g5(typename X0::U_type&);
    void g5(typename X0::X2::my_T_type&); // expected-error{{redecl}}
    
    void g6(T&); // expected-note{{previous}}
    void g6(typename X0::U_type&);
    void g6(typename X0<T*, U*>::X2::my_T_type&); // expected-error{{redecl}}
    
    void g7(T&); // expected-note{{previous}}
    void g7(typename X0::U_type&);
    void g7(typename ::X0<typename X2::my_T_type*, U_type*>::X2::my_T_type&); // expected-error{{redecl}}
    
    void g8(T&); // expected-note{{previous}}
    void g8(typename X0<U, T_type>::T_type&);
    void g8(typename ::X0<typename X0<T_type*, U*>::X2::my_T_type*, U_type*>::X2::my_T_type&); // expected-error{{redecl}}
  };
};

template<typename T>
struct X1 {
  static int *a;
  void f(float *b) {
    X1<T>::a = b; // expected-error{{incompatible}}
    X1<T*>::a = b;
  }
};

namespace ConstantInCurrentInstantiation {
  template<typename T>
  struct X {
    static const int value = 2;
    static int array[value];
  };

  template<typename T> const int X<T>::value;

  template<typename T>
  int X<T>::array[X<T>::value] = { 1, 2 };
}

namespace Expressions {
  template <bool b>
  struct Bool {
    enum anonymous_enum { value = b };
  };
  struct True : public Bool<true> {};
  struct False : public Bool<false> {};

  template <typename T1, typename T2>
  struct Is_Same : public False {};
  template <typename T>
  struct Is_Same<T, T> : public True {};

  template <bool b, typename T = void>
  struct Enable_If {};
  template <typename T>
  struct Enable_If<true, T>  {
    typedef T type;
  };

  template <typename T>
  class Class {
  public:
    template <typename U>
    typename Enable_If<Is_Same<U, Class>::value, void>::type
    foo();
  };


  template <typename T>
  template <typename U>
  typename Enable_If<Is_Same<U, Class<T> >::value, void>::type
  Class<T>::foo() {}
}

namespace PR9255 {
  template<typename T>
  class X0  {
  public:
    class Inner1;

    class Inner2  {
    public:
      void f()
      {
        Inner1::f.g();
      }
    };
  };
}

namespace rdar10194295 {
  template<typename XT>
  class X {
  public:
    enum Enum { Yes, No };
    template<Enum> void foo();
    template<Enum> class Inner;
  };

  template<typename XT>
  template<typename X<XT>::Enum>
  void X<XT>::foo()
  {
  }

  template<typename XT>
  template<typename X<XT>::Enum>
  class X<XT>::Inner { };
}