1 | // RUN: %clang_cc1 -fsyntax-only -verify %s |
2 | |
3 | // This test concerns the identity of dependent types within the |
4 | // canonical type system, specifically focusing on the difference |
5 | // between members of the current instantiation and members of an |
6 | // unknown specialization. This considers C++ [temp.type], which |
7 | // specifies type equivalence within a template, and C++0x |
8 | // [temp.dep.type], which defines what it means to be a member of the |
9 | // current instantiation. |
10 | |
11 | template<typename T, typename U> |
12 | struct X0 { |
13 | typedef T T_type; |
14 | typedef U U_type; |
15 | |
16 | void f0(T&); // expected-note{{previous}} |
17 | void f0(typename X0::U_type&); |
18 | void f0(typename X0::T_type&); // expected-error{{redecl}} |
19 | |
20 | void f1(T&); // expected-note{{previous}} |
21 | void f1(typename X0::U_type&); |
22 | void f1(typename X0<T, U>::T_type&); // expected-error{{redecl}} |
23 | |
24 | void f2(T&); // expected-note{{previous}} |
25 | void f2(typename X0::U_type&); |
26 | void f2(typename X0<T_type, U_type>::T_type&); // expected-error{{redecl}} |
27 | |
28 | void f3(T&); // expected-note{{previous}} |
29 | void f3(typename X0::U_type&); |
30 | void f3(typename ::X0<T_type, U_type>::T_type&); // expected-error{{redecl}} |
31 | |
32 | struct X1 { |
33 | typedef T my_T_type; |
34 | |
35 | void g0(T&); // expected-note{{previous}} |
36 | void g0(typename X0::U_type&); |
37 | void g0(typename X0::T_type&); // expected-error{{redecl}} |
38 | |
39 | void g1(T&); // expected-note{{previous}} |
40 | void g1(typename X0::U_type&); |
41 | void g1(typename X0<T, U>::T_type&); // expected-error{{redecl}} |
42 | |
43 | void g2(T&); // expected-note{{previous}} |
44 | void g2(typename X0::U_type&); |
45 | void g2(typename X0<T_type, U_type>::T_type&); // expected-error{{redecl}} |
46 | |
47 | void g3(T&); // expected-note{{previous}} |
48 | void g3(typename X0::U_type&); |
49 | void g3(typename ::X0<T_type, U_type>::T_type&); // expected-error{{redecl}} |
50 | |
51 | void g4(T&); // expected-note{{previous}} |
52 | void g4(typename X0::U_type&); |
53 | void g4(typename X1::my_T_type&); // expected-error{{redecl}} |
54 | |
55 | void g5(T&); // expected-note{{previous}} |
56 | void g5(typename X0::U_type&); |
57 | void g5(typename X0::X1::my_T_type&); // expected-error{{redecl}} |
58 | |
59 | void g6(T&); // expected-note{{previous}} |
60 | void g6(typename X0::U_type&); |
61 | void g6(typename X0<T, U>::X1::my_T_type&); // expected-error{{redecl}} |
62 | |
63 | void g7(T&); // expected-note{{previous}} |
64 | void g7(typename X0::U_type&); |
65 | void g7(typename ::X0<typename X1::my_T_type, U_type>::X1::my_T_type&); // expected-error{{redecl}} |
66 | |
67 | void g8(T&); // expected-note{{previous}} |
68 | void g8(typename X0<U, T_type>::T_type&); |
69 | void g8(typename ::X0<typename X0<T_type, U>::X1::my_T_type, U_type>::X1::my_T_type&); // expected-error{{redecl}} |
70 | }; |
71 | }; |
72 | |
73 | |
74 | template<typename T, typename U> |
75 | struct X0<T*, U*> { |
76 | typedef T T_type; |
77 | typedef U U_type; |
78 | typedef T* Tptr; |
79 | typedef U* Uptr; |
80 | |
81 | void f0(T&); // expected-note{{previous}} |
82 | void f0(typename X0::U_type&); |
83 | void f0(typename X0::T_type&); // expected-error{{redecl}} |
84 | |
85 | void f1(T&); // expected-note{{previous}} |
86 | void f1(typename X0::U_type&); |
87 | void f1(typename X0<T*, U*>::T_type&); // expected-error{{redecl}} |
88 | |
89 | void f2(T&); // expected-note{{previous}} |
90 | void f2(typename X0::U_type&); |
91 | void f2(typename X0<T_type*, U_type*>::T_type&); // expected-error{{redecl}} |
92 | |
93 | void f3(T&); // expected-note{{previous}} |
94 | void f3(typename X0::U_type&); |
95 | void f3(typename ::X0<T_type*, U_type*>::T_type&); // expected-error{{redecl}} |
96 | |
97 | void f4(T&); // expected-note{{previous}} |
98 | void f4(typename X0::U_type&); |
99 | void f4(typename ::X0<Tptr, Uptr>::T_type&); // expected-error{{redecl}} |
100 | |
101 | void f5(X0*); // expected-note{{previous}} |
102 | void f5(::X0<T, U>*); |
103 | void f5(::X0<T*, U*>*); // expected-error{{redecl}} |
104 | |
105 | struct X2 { |
106 | typedef T my_T_type; |
107 | |
108 | void g0(T&); // expected-note{{previous}} |
109 | void g0(typename X0::U_type&); |
110 | void g0(typename X0::T_type&); // expected-error{{redecl}} |
111 | |
112 | void g1(T&); // expected-note{{previous}} |
113 | void g1(typename X0::U_type&); |
114 | void g1(typename X0<T*, U*>::T_type&); // expected-error{{redecl}} |
115 | |
116 | void g2(T&); // expected-note{{previous}} |
117 | void g2(typename X0::U_type&); |
118 | void g2(typename X0<T_type*, U_type*>::T_type&); // expected-error{{redecl}} |
119 | |
120 | void g3(T&); // expected-note{{previous}} |
121 | void g3(typename X0::U_type&); |
122 | void g3(typename ::X0<T_type*, U_type*>::T_type&); // expected-error{{redecl}} |
123 | |
124 | void g4(T&); // expected-note{{previous}} |
125 | void g4(typename X0::U_type&); |
126 | void g4(typename X2::my_T_type&); // expected-error{{redecl}} |
127 | |
128 | void g5(T&); // expected-note{{previous}} |
129 | void g5(typename X0::U_type&); |
130 | void g5(typename X0::X2::my_T_type&); // expected-error{{redecl}} |
131 | |
132 | void g6(T&); // expected-note{{previous}} |
133 | void g6(typename X0::U_type&); |
134 | void g6(typename X0<T*, U*>::X2::my_T_type&); // expected-error{{redecl}} |
135 | |
136 | void g7(T&); // expected-note{{previous}} |
137 | void g7(typename X0::U_type&); |
138 | void g7(typename ::X0<typename X2::my_T_type*, U_type*>::X2::my_T_type&); // expected-error{{redecl}} |
139 | |
140 | void g8(T&); // expected-note{{previous}} |
141 | void g8(typename X0<U, T_type>::T_type&); |
142 | void g8(typename ::X0<typename X0<T_type*, U*>::X2::my_T_type*, U_type*>::X2::my_T_type&); // expected-error{{redecl}} |
143 | }; |
144 | }; |
145 | |
146 | template<typename T> |
147 | struct X1 { |
148 | static int *a; |
149 | void f(float *b) { |
150 | X1<T>::a = b; // expected-error{{incompatible}} |
151 | X1<T*>::a = b; |
152 | } |
153 | }; |
154 | |
155 | namespace ConstantInCurrentInstantiation { |
156 | template<typename T> |
157 | struct X { |
158 | static const int value = 2; |
159 | static int array[value]; |
160 | }; |
161 | |
162 | template<typename T> const int X<T>::value; |
163 | |
164 | template<typename T> |
165 | int X<T>::array[X<T>::value] = { 1, 2 }; |
166 | } |
167 | |
168 | namespace Expressions { |
169 | template <bool b> |
170 | struct Bool { |
171 | enum anonymous_enum { value = b }; |
172 | }; |
173 | struct True : public Bool<true> {}; |
174 | struct False : public Bool<false> {}; |
175 | |
176 | template <typename T1, typename T2> |
177 | struct Is_Same : public False {}; |
178 | template <typename T> |
179 | struct Is_Same<T, T> : public True {}; |
180 | |
181 | template <bool b, typename T = void> |
182 | struct Enable_If {}; |
183 | template <typename T> |
184 | struct Enable_If<true, T> { |
185 | typedef T type; |
186 | }; |
187 | |
188 | template <typename T> |
189 | class Class { |
190 | public: |
191 | template <typename U> |
192 | typename Enable_If<Is_Same<U, Class>::value, void>::type |
193 | foo(); |
194 | }; |
195 | |
196 | |
197 | template <typename T> |
198 | template <typename U> |
199 | typename Enable_If<Is_Same<U, Class<T> >::value, void>::type |
200 | Class<T>::foo() {} |
201 | } |
202 | |
203 | namespace PR9255 { |
204 | template<typename T> |
205 | class X0 { |
206 | public: |
207 | class Inner1; |
208 | |
209 | class Inner2 { |
210 | public: |
211 | void f() |
212 | { |
213 | Inner1::f.g(); |
214 | } |
215 | }; |
216 | }; |
217 | } |
218 | |
219 | namespace rdar10194295 { |
220 | template<typename XT> |
221 | class X { |
222 | public: |
223 | enum Enum { Yes, No }; |
224 | template<Enum> void foo(); |
225 | template<Enum> class Inner; |
226 | }; |
227 | |
228 | template<typename XT> |
229 | template<typename X<XT>::Enum> |
230 | void X<XT>::foo() |
231 | { |
232 | } |
233 | |
234 | template<typename XT> |
235 | template<typename X<XT>::Enum> |
236 | class X<XT>::Inner { }; |
237 | } |
238 | |
239 | namespace RebuildDependentScopeDeclRefExpr { |
240 | template<int> struct N {}; |
241 | template<typename T> struct X { |
242 | static const int thing = 0; |
243 | N<thing> data(); |
244 | N<thing> foo(); |
245 | }; |
246 | template<typename T> N<X<T>::thing> X<T>::data() {} |
247 | // FIXME: We should issue a typo-correction here. |
248 | template<typename T> N<X<T>::think> X<T>::foo() {} // expected-error {{no member named 'think' in 'X<T>'}} |
249 | } |
250 | |