1 | // RUN: %clang_cc1 -fsyntax-only -verify -fblocks -std=c++11 %s |
2 | // RUN: %clang_cc1 -fsyntax-only -verify -fblocks -std=c++1z %s |
3 | |
4 | typedef void (^BlockTy)(); |
5 | |
6 | struct S { |
7 | int i; |
8 | void m(); |
9 | }; |
10 | |
11 | void escapingFunc0(BlockTy); |
12 | void noescapeFunc0(id, __attribute__((noescape)) BlockTy); |
13 | void noescapeFunc1(id, [[clang::noescape]] BlockTy); |
14 | void noescapeFunc2(__attribute__((noescape)) int *); // expected-note {{previous declaration is here}} |
15 | void noescapeFunc3(__attribute__((noescape)) id); |
16 | void noescapeFunc4(__attribute__((noescape)) int &); |
17 | void noescapeFunc2(int *); // expected-error {{conflicting types for 'noescapeFunc2'}} |
18 | |
19 | void invalidFunc0(int __attribute__((noescape))); // expected-warning {{'noescape' attribute only applies to pointer arguments}} |
20 | void invalidFunc1(int __attribute__((noescape(0)))); // expected-error {{'noescape' attribute takes no arguments}} |
21 | void invalidFunc2(int0 *__attribute__((noescape))); // expected-error {{use of undeclared identifier 'int0'; did you mean 'int'?}} |
22 | void invalidFunc3(__attribute__((noescape)) int (S::*Ty)); // expected-warning {{'noescape' attribute only applies to pointer arguments}} |
23 | void invalidFunc4(__attribute__((noescape)) void (S::*Ty)()); // expected-warning {{'noescape' attribute only applies to pointer arguments}} |
24 | int __attribute__((noescape)) g; // expected-warning {{'noescape' attribute only applies to parameters}} |
25 | |
26 | struct S1 { |
27 | virtual void m0(int *__attribute__((noescape))); // expected-note {{parameter of overridden method is annotated with __attribute__((noescape))}} |
28 | }; |
29 | |
30 | struct S2 : S1 { |
31 | void m0(int *__attribute__((noescape))) override; |
32 | }; |
33 | |
34 | struct S3 : S1 { |
35 | void m0(int *) override; // expected-warning {{parameter of overriding method should be annotated with __attribute__((noescape))}} |
36 | }; |
37 | |
38 | __attribute__((objc_root_class)) |
39 | @interface C0 |
40 | -(void) m0:(int*)__attribute__((noescape)) p; // expected-note {{parameter of overridden method is annotated with __attribute__((noescape))}} |
41 | @end |
42 | |
43 | @implementation C0 |
44 | -(void) m0:(int*)__attribute__((noescape)) p {} |
45 | @end |
46 | |
47 | @interface C1 : C0 |
48 | -(void) m0:(int*)__attribute__((noescape)) p; |
49 | @end |
50 | |
51 | @implementation C1 : C0 |
52 | -(void) m0:(int*)__attribute__((noescape)) p {} |
53 | @end |
54 | |
55 | @interface C2 : C0 |
56 | -(void) m0:(int*) p; // expected-warning {{parameter of overriding method should be annotated with __attribute__((noescape))}} |
57 | @end |
58 | |
59 | @implementation C2 : C0 |
60 | -(void) m0:(int*) p {} |
61 | @end |
62 | |
63 | void func0(int *); |
64 | void (*fnptr0)(int *); |
65 | void (*fnptr1)(__attribute__((noescape)) int *); |
66 | template<void (*fn)(int*)> struct S4 {}; |
67 | template<void (*fn)(int* __attribute__((noescape)))> struct S5 {}; |
68 | |
69 | #if __cplusplus < 201406 |
70 | // expected-note@-4 {{template parameter is declared here}} |
71 | // expected-note@-4 {{template parameter is declared here}} |
72 | #endif |
73 | |
74 | void test0() { |
75 | fnptr0 = &func0; |
76 | fnptr0 = &noescapeFunc2; |
77 | fnptr1 = &func0; // expected-error {{assigning to 'void (*)(__attribute__((noescape)) int *)' from incompatible type 'void (*)(int *)'}} |
78 | fnptr1 = &noescapeFunc2; |
79 | S4<&func0> e0; |
80 | S4<&noescapeFunc2> e1; |
81 | S5<&func0> ne0; |
82 | |
83 | #if __cplusplus < 201406 |
84 | // expected-error@-4 {{non-type template argument of type 'void (*)(__attribute__((noescape)) int *)' cannot be converted to a value of type 'void (*)(int *)'}} |
85 | // expected-error@-4 {{non-type template argument of type 'void (*)(int *)' cannot be converted to a value of type 'void (*)(__attribute__((noescape)) int *)'}} |
86 | #else |
87 | // expected-error@-6 {{value of type 'void (*)(int *)' is not implicitly convertible to 'void (*)(__attribute__((noescape)) int *)'}} |
88 | #endif |
89 | |
90 | S5<&noescapeFunc2> ne1; |
91 | } |
92 | |
93 | @protocol NoescapeProt |
94 | -(void) m0:(int*)__attribute__((noescape)) p; // expected-note 2 {{parameter of overridden method is annotated with __attribute__((noescape))}} |
95 | +(void) m1:(int*)__attribute__((noescape)) p; |
96 | -(void) m1:(int*) p; |
97 | @end |
98 | |
99 | __attribute__((objc_root_class)) |
100 | @interface C3 |
101 | -(void) m0:(int*) p; |
102 | +(void) m1:(int*)__attribute__((noescape)) p; |
103 | -(void) m1:(int*) p; |
104 | @end |
105 | |
106 | @interface C3 () <NoescapeProt> // expected-note {{class extension conforms to protocol 'NoescapeProt' which defines method 'm0:'}} |
107 | @end |
108 | |
109 | @implementation C3 |
110 | -(void) m0:(int*) p { // expected-warning {{parameter of overriding method should be annotated with __attribute__((noescape))}} |
111 | } |
112 | +(void) m1:(int*)__attribute__((noescape)) p { |
113 | } |
114 | -(void) m1:(int*) p { |
115 | } |
116 | @end |
117 | |
118 | __attribute__((objc_root_class)) |
119 | @interface C4 <NoescapeProt> |
120 | -(void) m0:(int*) p; // expected-warning {{parameter of overriding method should be annotated with __attribute__((noescape))}} |
121 | @end |
122 | |
123 | @implementation C4 |
124 | -(void) m0:(int*) p { |
125 | } |
126 | +(void) m1:(int*)__attribute__((noescape)) p { |
127 | } |
128 | -(void) m1:(int*) p { |
129 | } |
130 | @end |
131 | |
132 | struct S6 { |
133 | S6(); |
134 | S6(const S6 &) = delete; // expected-note 3 {{'S6' has been explicitly marked deleted here}} |
135 | int f; |
136 | }; |
137 | |
138 | void test1() { |
139 | id a; |
140 | // __block variables that are not captured by escaping blocks don't |
141 | // necessitate having accessible copy constructors. |
142 | __block S6 b0; |
143 | __block S6 b1; // expected-error {{call to deleted constructor of 'S6'}} |
144 | __block S6 b2; // expected-error {{call to deleted constructor of 'S6'}} |
145 | __block S6 b3; // expected-error {{call to deleted constructor of 'S6'}} |
146 | |
147 | noescapeFunc0(a, ^{ (void)b0; }); |
148 | escapingFunc0(^{ (void)b1; }); |
149 | { |
150 | noescapeFunc0(a, ^{ (void)b0; (void)b1; }); |
151 | } |
152 | noescapeFunc0(a, ^{ escapingFunc0(^{ (void)b2; }); }); |
153 | escapingFunc0(^{ noescapeFunc0(a, ^{ (void)b3; }); }); |
154 | } |
155 | |