blob: a43d9e019ed334f00fb8ccdedb88923f114fc584 (
about) (
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
|
// RUN: %clang_cc1 -fsyntax-only -verify %s
// C++03 [namespace.udecl]p4:
// A using-declaration used as a member-declaration shall refer to a
// member of a base class of the class being defined, shall refer to
// a member of an anonymous union that is a member of a base class
// of the class being defined, or shall refer to an enumerator for
// an enumeration type that is a member of a base class of the class
// being defined.
// There is no directly analogous paragraph in C++0x, and the feature
// works sufficiently differently there that it needs a separate test.
namespace test0 {
namespace NonClass {
typedef int type;
struct hiding {};
int hiding;
static union { double union_member; };
enum tagname { enumerator };
}
class Test0 {
using NonClass::type; // expected-error {{not a class}}
using NonClass::hiding; // expected-error {{not a class}}
using NonClass::union_member; // expected-error {{not a class}}
using NonClass::enumerator; // expected-error {{not a class}}
};
}
struct Opaque0 {};
namespace test1 {
struct A {
typedef int type;
struct hiding {}; // expected-note {{previous use is here}}
Opaque0 hiding;
union { double union_member; };
enum tagname { enumerator };
};
struct B : A {
using A::type;
using A::hiding;
using A::union_member;
using A::enumerator;
using A::tagname;
void test0() {
type t = 0;
}
void test1() {
typedef struct A::hiding local;
struct hiding _ = local();
}
void test2() {
union hiding _; // expected-error {{tag type that does not match previous}}
}
void test3() {
char array[sizeof(union_member) == sizeof(double) ? 1 : -1];
}
void test4() {
enum tagname _ = enumerator;
}
void test5() {
Opaque0 _ = hiding;
}
};
}
namespace test2 {
struct A {
typedef int type;
struct hiding {}; // expected-note {{previous use is here}}
int hiding;
union { double union_member; };
enum tagname { enumerator };
};
template <class T> struct B : A {
using A::type;
using A::hiding;
using A::union_member;
using A::enumerator;
using A::tagname;
void test0() {
type t = 0;
}
void test1() {
typedef struct A::hiding local;
struct hiding _ = local();
}
void test2() {
union hiding _; // expected-error {{tag type that does not match previous}}
}
void test3() {
char array[sizeof(union_member) == sizeof(double) ? 1 : -1];
}
void test4() {
enum tagname _ = enumerator;
}
void test5() {
Opaque0 _ = hiding;
}
};
}
namespace test3 {
struct hiding {};
template <class T> struct A {
typedef int type; // expected-note {{target of using declaration}}
struct hiding {};
Opaque0 hiding; // expected-note {{target of using declaration}}
union { double union_member; }; // expected-note {{target of using declaration}}
enum tagname { enumerator }; // expected-note 2 {{target of using declaration}}
};
template <class T> struct B : A<T> {
using A<T>::type; // expected-error {{dependent using declaration resolved to type without 'typename'}}
using A<T>::hiding;
using A<T>::union_member;
using A<T>::enumerator;
using A<T>::tagname; // expected-error {{dependent using declaration resolved to type without 'typename'}}
// FIXME: re-enable these when the various bugs involving tags are fixed
#if 0
void test1() {
typedef struct A<T>::hiding local;
struct hiding _ = local();
}
void test2() {
typedef struct A<T>::hiding local;
union hiding _ = local();
}
#endif
void test3() {
char array[sizeof(union_member) == sizeof(double) ? 1 : -1];
}
#if 0
void test4() {
enum tagname _ = enumerator;
}
#endif
void test5() {
Opaque0 _ = hiding;
}
};
template struct B<int>; // expected-note {{in instantiation}}
template <class T> struct C : A<T> {
using typename A<T>::type;
using typename A<T>::hiding; // expected-note {{declared here}} \
// expected-error {{'typename' keyword used on a non-type}}
using typename A<T>::union_member; // expected-error {{'typename' keyword used on a non-type}}
using typename A<T>::enumerator; // expected-error {{'typename' keyword used on a non-type}}
void test6() {
type t = 0;
}
void test7() {
Opaque0 _ = hiding; // expected-error {{does not refer to a value}}
}
};
template struct C<int>; // expected-note {{in instantiation}}
}
namespace test4 {
struct Base {
int foo();
};
struct Unrelated {
int foo();
};
struct Subclass : Base {
};
namespace InnerNS {
int foo();
}
// We should be able to diagnose these without instantiation.
template <class T> struct C : Base {
using InnerNS::foo; // expected-error {{not a class}}
using Base::bar; // expected-error {{no member named 'bar'}}
using Unrelated::foo; // expected-error {{not a base class}}
using C::foo; // legal in C++03
using Subclass::foo; // legal in C++03
int bar(); //expected-note {{target of using declaration}}
using C::bar; // expected-error {{refers to its own class}}
};
}
|
