1 | // RUN: %clang_cc1 -triple %itanium_abi_triple -fsyntax-only -verify %s |
2 | // RUN: %clang_cc1 -triple %ms_abi_triple -DMSABI -fsyntax-only -verify %s |
3 | |
4 | // Tests various places where requiring a complete type involves |
5 | // instantiation of that type. |
6 | |
7 | template<typename T> |
8 | struct X { |
9 | X(T); |
10 | |
11 | #ifdef MSABI |
12 | // expected-error@+2{{data member instantiated with function type 'long (long)'}} |
13 | #endif |
14 | T f; // expected-error{{data member instantiated with function type 'float (int)'}} \ |
15 | // expected-error{{data member instantiated with function type 'int (int)'}} \ |
16 | // expected-error{{data member instantiated with function type 'char (char)'}} \ |
17 | // expected-error{{data member instantiated with function type 'short (short)'}} \ |
18 | // expected-error{{data member instantiated with function type 'float (float)'}} |
19 | }; |
20 | |
21 | X<int> f() { return 0; } |
22 | |
23 | struct XField { |
24 | X<float(int)> xf; // expected-note{{in instantiation of template class 'X<float (int)>' requested here}} |
25 | }; |
26 | |
27 | void test_subscript(X<double> *ptr1, X<int(int)> *ptr2, int i) { |
28 | (void)ptr1[i]; |
29 | (void)ptr2[i]; // expected-note{{in instantiation of template class 'X<int (int)>' requested here}} |
30 | } |
31 | |
32 | void test_arith(X<signed char> *ptr1, X<unsigned char> *ptr2, |
33 | X<char(char)> *ptr3, X<short(short)> *ptr4) { |
34 | (void)(ptr1 + 5); |
35 | (void)(5 + ptr2); |
36 | (void)(ptr3 + 5); // expected-note{{in instantiation of template class 'X<char (char)>' requested here}} |
37 | (void)(5 + ptr4); // expected-note{{in instantiation of template class 'X<short (short)>' requested here}} |
38 | } |
39 | |
40 | void test_new() { |
41 | (void)new X<float>(0); |
42 | (void)new X<float(float)>; // expected-note{{in instantiation of template class 'X<float (float)>' requested here}} |
43 | } |
44 | |
45 | void test_memptr(X<long> *p1, long X<long>::*pm1, |
46 | X<long(long)> *p2, |
47 | #ifdef MSABI |
48 | long (X<long(long)>::*pm2)(long)) { // expected-note{{in instantiation of template class 'X<long (long)>' requested here}} |
49 | #else |
50 | long (X<long(long)>::*pm2)(long)) { |
51 | #endif |
52 | (void)(p1->*pm1); |
53 | } |
54 | |
55 | // Reference binding to a base |
56 | template<typename T> |
57 | struct X1 { }; |
58 | |
59 | template<typename T> |
60 | struct X2 : public T { }; |
61 | |
62 | void refbind_base(X2<X1<int> > &x2) { |
63 | X1<int> &x1 = x2; |
64 | } |
65 | |
66 | // Enumerate constructors for user-defined conversion. |
67 | template<typename T> |
68 | struct X3 { |
69 | X3(T); |
70 | }; |
71 | |
72 | void enum_constructors(X1<float> &x1) { |
73 | X3<X1<float> > x3 = x1; |
74 | } |
75 | |
76 | namespace PR6376 { |
77 | template<typename T, typename U> struct W { }; |
78 | |
79 | template<typename T> |
80 | struct X { |
81 | template<typename U> |
82 | struct apply { |
83 | typedef W<T, U> type; |
84 | }; |
85 | }; |
86 | |
87 | template<typename T, typename U> |
88 | struct Y : public X<T>::template apply<U>::type { }; |
89 | |
90 | template struct Y<int, float>; |
91 | } |
92 | |
93 | namespace TemporaryObjectCopy { |
94 | // Make sure we instantiate classes when we create a temporary copy. |
95 | template<typename T> |
96 | struct X { |
97 | X(T); |
98 | }; |
99 | |
100 | template<typename T> |
101 | void f(T t) { |
102 | const X<int> &x = X<int>(t); |
103 | } |
104 | |
105 | template void f(int); |
106 | } |
107 | |
108 | namespace PR7080 { |
109 | template <class T, class U> |
110 | class X |
111 | { |
112 | typedef char true_t; |
113 | class false_t { char dummy[2]; }; |
114 | static true_t dispatch(U); |
115 | static false_t dispatch(...); |
116 | static T trigger(); |
117 | public: |
118 | enum { value = sizeof(dispatch(trigger())) == sizeof(true_t) }; |
119 | }; |
120 | |
121 | template <class T> |
122 | class rv : public T |
123 | { }; |
124 | |
125 | bool x = X<int, rv<int>&>::value; |
126 | } |
127 | |
128 | namespace pr7199 { |
129 | template <class T> class A; // expected-note {{template is declared here}} |
130 | template <class T> class B { |
131 | class A<T>::C field; // expected-error {{implicit instantiation of undefined template 'pr7199::A<int>'}} |
132 | }; |
133 | |
134 | template class B<int>; // expected-note {{in instantiation}} |
135 | } |
136 | |
137 | namespace PR8425 { |
138 | template <typename T> |
139 | class BaseT {}; |
140 | |
141 | template <typename T> |
142 | class DerivedT : public BaseT<T> {}; |
143 | |
144 | template <typename T> |
145 | class FromT { |
146 | public: |
147 | operator DerivedT<T>() const { return DerivedT<T>(); } |
148 | }; |
149 | |
150 | void test() { |
151 | FromT<int> ft; |
152 | BaseT<int> bt(ft); |
153 | } |
154 | } |
155 | |