1 | // RUN: %clang_cc1 -triple %itanium_abi_triple -fsyntax-only -verify -fblocks %s |
2 | |
3 | #define bool _Bool |
4 | @protocol NSObject; |
5 | |
6 | void bar(id(^)(void)); |
7 | void foo(id <NSObject>(^objectCreationBlock)(void)) { |
8 | return bar(objectCreationBlock); |
9 | } |
10 | |
11 | void bar2(id(*)(void)); |
12 | void foo2(id <NSObject>(*objectCreationBlock)(void)) { |
13 | return bar2(objectCreationBlock); |
14 | } |
15 | |
16 | void bar3(id(*)()); |
17 | void foo3(id (*objectCreationBlock)(int)) { |
18 | return bar3(objectCreationBlock); |
19 | } |
20 | |
21 | void bar4(id(^)()); |
22 | void foo4(id (^objectCreationBlock)(int)) { |
23 | return bar4(objectCreationBlock); |
24 | } |
25 | |
26 | void bar5(id(^)(void)); // expected-note 3{{passing argument to parameter here}} |
27 | void foo5(id (^objectCreationBlock)(bool)) { |
28 | bar5(objectCreationBlock); // expected-error {{incompatible block pointer types passing 'id (^)(bool)' to parameter of type 'id (^)(void)'}} |
29 | #undef bool |
30 | bar5(objectCreationBlock); // expected-error {{incompatible block pointer types passing 'id (^)(_Bool)' to parameter of type 'id (^)(void)'}} |
31 | #define bool int |
32 | bar5(objectCreationBlock); // expected-error {{incompatible block pointer types passing 'id (^)(_Bool)' to parameter of type 'id (^)(void)'}} |
33 | } |
34 | |
35 | void bar6(id(^)(int)); |
36 | void foo6(id (^objectCreationBlock)()) { |
37 | return bar6(objectCreationBlock); |
38 | } |
39 | |
40 | void foo7(id (^x)(int)) { |
41 | if (x) { } |
42 | } |
43 | |
44 | @interface itf |
45 | @end |
46 | |
47 | void foo8() { |
48 | void *P = ^(itf x) {}; // expected-error {{interface type 'itf' cannot be passed by value; did you forget * in 'itf'}} |
49 | P = ^itf(int x) {}; // expected-error {{interface type 'itf' cannot be returned by value; did you forget * in 'itf'}} |
50 | P = ^itf() {}; // expected-error {{interface type 'itf' cannot be returned by value; did you forget * in 'itf'}} |
51 | P = ^itf{}; // expected-error {{interface type 'itf' cannot be returned by value; did you forget * in 'itf'}} |
52 | } |
53 | |
54 | |
55 | int foo9() { |
56 | typedef void (^DVTOperationGroupScheduler)(); |
57 | id _suboperationSchedulers; |
58 | |
59 | for (DVTOperationGroupScheduler scheduler in _suboperationSchedulers) { |
60 | ; |
61 | } |
62 | |
63 | } |
64 | |
65 | // rdar 7725203 |
66 | @class NSString; |
67 | |
68 | extern void NSLog(NSString *format, ...) __attribute__((format(__NSString__, 1, 2))); |
69 | |
70 | void foo10() { |
71 | void(^myBlock)(void) = ^{ |
72 | }; |
73 | NSLog(@"%@", myBlock); |
74 | } |
75 | |
76 | |
77 | // In C, enum constants have the type of the underlying integer type, not the |
78 | // enumeration they are part of. We pretend the constants have enum type if |
79 | // all the returns seem to be playing along. |
80 | enum CStyleEnum { |
81 | CSE_Value = 1, |
82 | CSE_Value2 = 2 |
83 | }; |
84 | enum CStyleEnum getCSE(); |
85 | typedef enum CStyleEnum (^cse_block_t)(); |
86 | |
87 | void testCStyleEnumInference(bool arg) { |
88 | cse_block_t a; |
89 | enum CStyleEnum value; |
90 | |
91 | // No warnings here. |
92 | a = ^{ return getCSE(); }; |
93 | a = ^{ return value; }; |
94 | |
95 | a = ^{ // expected-error {{incompatible block pointer types assigning to 'cse_block_t' (aka 'enum CStyleEnum (^)()') from 'int (^)(void)'}} |
96 | return 1; |
97 | }; |
98 | |
99 | // No warning here. |
100 | a = ^{ |
101 | return CSE_Value; |
102 | }; |
103 | |
104 | // No warnings here. |
105 | a = ^{ if (arg) return CSE_Value; else return getCSE(); }; |
106 | a = ^{ if (arg) return getCSE(); else return CSE_Value; }; |
107 | a = ^{ if (arg) return value; else return CSE_Value; }; |
108 | |
109 | // These two blocks actually return 'int' |
110 | a = ^{ // expected-error {{incompatible block pointer types assigning to 'cse_block_t' (aka 'enum CStyleEnum (^)()') from 'int (^)(void)'}} |
111 | if (arg) |
112 | return 1; |
113 | else |
114 | return CSE_Value; |
115 | }; |
116 | |
117 | a = ^{ // expected-error {{incompatible block pointer types assigning to 'cse_block_t' (aka 'enum CStyleEnum (^)()') from 'int (^)(void)'}} |
118 | if (arg) |
119 | return CSE_Value; |
120 | else |
121 | return 1; |
122 | }; |
123 | |
124 | a = ^{ // expected-error {{incompatible block pointer types assigning to 'cse_block_t' (aka 'enum CStyleEnum (^)()') from 'int (^)(void)'}} |
125 | if (arg) |
126 | return 1; |
127 | else |
128 | return value; // expected-error {{return type 'enum CStyleEnum' must match previous return type 'int'}} |
129 | }; |
130 | |
131 | // rdar://13200889 |
132 | extern void check_enum(void); |
133 | a = ^{ |
134 | return (arg ? (CSE_Value) : (check_enum(), (!arg ? CSE_Value2 : getCSE()))); |
135 | }; |
136 | a = ^{ |
137 | return (arg ? (CSE_Value) : ({check_enum(); CSE_Value2; })); |
138 | }; |
139 | } |
140 | |
141 | |
142 | enum FixedTypeEnum : unsigned { |
143 | FTE_Value = 1U |
144 | }; |
145 | enum FixedTypeEnum getFTE(); |
146 | typedef enum FixedTypeEnum (^fte_block_t)(); |
147 | |
148 | void testFixedTypeEnumInference(bool arg) { |
149 | fte_block_t a; |
150 | |
151 | // No warnings here. |
152 | a = ^{ return getFTE(); }; |
153 | |
154 | // Since we fixed the underlying type of the enum, this is considered a |
155 | // compatible block type. |
156 | a = ^{ |
157 | return 1U; |
158 | }; |
159 | a = ^{ |
160 | return FTE_Value; |
161 | }; |
162 | |
163 | // No warnings here. |
164 | a = ^{ if (arg) return FTE_Value; else return FTE_Value; }; |
165 | a = ^{ if (arg) return getFTE(); else return getFTE(); }; |
166 | a = ^{ if (arg) return FTE_Value; else return getFTE(); }; |
167 | a = ^{ if (arg) return getFTE(); else return FTE_Value; }; |
168 | |
169 | // These two blocks actually return 'unsigned'. |
170 | a = ^{ |
171 | if (arg) |
172 | return 1U; |
173 | else |
174 | return FTE_Value; |
175 | }; |
176 | |
177 | a = ^{ |
178 | if (arg) |
179 | return FTE_Value; |
180 | else |
181 | return 1U; |
182 | }; |
183 | } |
184 | |
185 | |
186 | enum { |
187 | AnonymousValue = 1 |
188 | }; |
189 | |
190 | enum : short { |
191 | FixedAnonymousValue = 1 |
192 | }; |
193 | |
194 | typedef enum { |
195 | TDE_Value |
196 | } TypeDefEnum; |
197 | TypeDefEnum getTDE(); |
198 | |
199 | typedef enum : short { |
200 | TDFTE_Value |
201 | } TypeDefFixedTypeEnum; |
202 | TypeDefFixedTypeEnum getTDFTE(); |
203 | |
204 | typedef int (^int_block_t)(); |
205 | typedef short (^short_block_t)(); |
206 | void testAnonymousEnumTypes(int arg) { |
207 | int_block_t IB; |
208 | IB = ^{ return AnonymousValue; }; |
209 | IB = ^{ if (arg) return TDE_Value; else return getTDE(); }; |
210 | IB = ^{ if (arg) return getTDE(); else return TDE_Value; }; |
211 | |
212 | // Since we fixed the underlying type of the enum, these are considered |
213 | // compatible block types anyway. |
214 | short_block_t SB; |
215 | SB = ^{ return FixedAnonymousValue; }; |
216 | SB = ^{ if (arg) return TDFTE_Value; else return getTDFTE(); }; |
217 | SB = ^{ if (arg) return getTDFTE(); else return TDFTE_Value; }; |
218 | } |
219 | |
220 | static inline void inlinefunc() { |
221 | ^{}(); |
222 | } |
223 | void inlinefunccaller() { inlinefunc(); } |
224 | |