1 | // RUN: %clang_cc1 -fblocks -triple x86_64-apple-darwin11 -fsyntax-only -std=c++11 -verify %s |
2 | |
3 | @class NSArray; |
4 | |
5 | @interface NSMutableDictionary |
6 | - (id)objectForKeyedSubscript:(id)key; |
7 | - (void)setObject:(id)object forKeyedSubscript:(id)key; // expected-note {{passing argument to parameter 'object' here}} |
8 | @end |
9 | |
10 | template<typename T, typename U, typename O> |
11 | void test_dictionary_subscripts(T base, U key, O obj) { |
12 | base[key] = obj; // expected-error {{expected method to write array element not found on object of type 'NSMutableDictionary *'}} \ |
13 | // expected-error {{cannot initialize a parameter of type 'id' with an lvalue of type 'int'}} |
14 | obj = base[key]; // expected-error {{expected method to read array element not found on object of type 'NSMutableDictionary *'}} \ |
15 | // expected-error {{assigning to 'int' from incompatible type 'id'}} |
16 | |
17 | } |
18 | |
19 | template void test_dictionary_subscripts(NSMutableDictionary*, id, NSArray *ns); |
20 | |
21 | template void test_dictionary_subscripts(NSMutableDictionary*, NSArray *ns, id); |
22 | |
23 | template void test_dictionary_subscripts(NSMutableDictionary*, int, id); // expected-note {{in instantiation of function template specialization 'test_dictionary_subscripts<NSMutableDictionary *, int, id>' requested here}} |
24 | |
25 | template void test_dictionary_subscripts(NSMutableDictionary*, id, int); // expected-note {{in instantiation of function template specialization 'test_dictionary_subscripts<NSMutableDictionary *, id, int>' requested here}} |
26 | |
27 | |
28 | @interface NSMutableArray |
29 | - (id)objectAtIndexedSubscript:(int)index; |
30 | - (void)setObject:(id)object atIndexedSubscript:(int)index; |
31 | @end |
32 | |
33 | template<typename T, typename U, typename O> |
34 | void test_array_subscripts(T base, U index, O obj) { |
35 | base[index] = obj; // expected-error {{indexing expression is invalid because subscript type 'double' is not an integral or Objective-C pointer type}} |
36 | obj = base[index]; // expected-error {{indexing expression is invalid because subscript type 'double' is not an integral or Objective-C pointer type}} |
37 | } |
38 | |
39 | template void test_array_subscripts(NSMutableArray *, int, id); |
40 | template void test_array_subscripts(NSMutableArray *, short, id); |
41 | enum E { e }; |
42 | |
43 | template void test_array_subscripts(NSMutableArray *, E, id); |
44 | |
45 | template void test_array_subscripts(NSMutableArray *, double, id); // expected-note {{in instantiation of function template specialization 'test_array_subscripts<NSMutableArray *, double, id>' requested here}} |
46 | |
47 | template<typename T> |
48 | struct ConvertibleTo { |
49 | operator T(); |
50 | }; |
51 | |
52 | template<typename T> |
53 | struct ExplicitlyConvertibleTo { |
54 | explicit operator T(); |
55 | }; |
56 | |
57 | template<typename T> ConvertibleTo<T> makeConvertible(); |
58 | |
59 | struct X { |
60 | ConvertibleTo<id> x; |
61 | ConvertibleTo<id> get(); |
62 | }; |
63 | |
64 | NSMutableArray *test_array_convertibility(ConvertibleTo<NSMutableArray*> toArray, |
65 | ConvertibleTo<id> toId, |
66 | ConvertibleTo<int (^)(int)> toBlock, |
67 | ConvertibleTo<int> toInt, |
68 | ExplicitlyConvertibleTo<NSMutableArray *> toArrayExplicit) { |
69 | id array; |
70 | |
71 | array[1] = toArray; |
72 | |
73 | array[4] = array[1]; |
74 | |
75 | toArrayExplicit[2] = toId; // expected-error {{type 'ExplicitlyConvertibleTo<NSMutableArray *>' does not provide a subscript operator}} |
76 | |
77 | return array[toInt]; |
78 | |
79 | } |
80 | |
81 | id test_dict_convertibility(ConvertibleTo<NSMutableDictionary*> toDict, |
82 | ConvertibleTo<id> toId, |
83 | ConvertibleTo<int (^)(int)> toBlock, |
84 | ConvertibleTo<int> toInt, |
85 | ExplicitlyConvertibleTo<NSMutableDictionary *> toDictExplicit) { |
86 | |
87 | |
88 | NSMutableDictionary *Dict; |
89 | id Id; |
90 | Dict[toId] = toBlock; |
91 | |
92 | Dict[toBlock] = toBlock; |
93 | |
94 | Dict[toBlock] = Dict[toId] = Dict[toBlock]; |
95 | |
96 | Id = toDictExplicit[toId] = Id; // expected-error {{no viable overloaded operator[] for type 'ExplicitlyConvertibleTo<NSMutableDictionary *>'}} |
97 | |
98 | return Dict[toBlock]; |
99 | } |
100 | |
101 | |
102 | template<typename ...Args> |
103 | void test_bad_variadic_array_subscripting(Args ...args) { |
104 | id arr1; |
105 | arr1[3] = args; // expected-error {{expression contains unexpanded parameter pack 'args'}} |
106 | } |
107 | |
108 | template<typename ...Args> |
109 | void test_variadic_array_subscripting(Args ...args) { |
110 | id arr[] = {args[3]...}; // which means: {a[3], b[3], c[3]}; |
111 | } |
112 | |
113 | template void test_variadic_array_subscripting(id arg1, NSMutableArray* arg2, id arg3); |
114 | |
115 | @class Key; |
116 | |
117 | template<typename Index, typename ...Args> |
118 | void test_variadic_dictionary_subscripting(Index I, Args ...args) { |
119 | id arr[] = {args[I]...}; // which means: {a[3], b[3], c[3]}; |
120 | } |
121 | |
122 | template void test_variadic_dictionary_subscripting(Key *key, id arg1, NSMutableDictionary* arg2, id arg3); |
123 | |
124 | template<int N> |
125 | id get(NSMutableArray *array) { |
126 | return array[N]; // array[N] should be a value- and instantiation-dependent ObjCSubscriptRefExpr |
127 | } |
128 | |
129 | struct WeirdIndex { |
130 | operator int(); // expected-note {{type conversion function declared here}} |
131 | operator id(); // expected-note {{type conversion function declared here}} |
132 | }; |
133 | |
134 | id FUNC(WeirdIndex w) { |
135 | NSMutableArray *array; |
136 | return array[w]; // expected-error {{indexing expression is invalid because subscript type 'WeirdIndex' has multiple type conversion functions}} |
137 | } |
138 | |
139 | |