1 | // RUN: %clang_cc1 -fsyntax-only %s -verify -fblocks |
2 | |
3 | void I( void (^)(void)); |
4 | void (^noop)(void); |
5 | |
6 | void nothing(); |
7 | int printf(const char*, ...); |
8 | |
9 | typedef void (^T) (void); |
10 | |
11 | void takeblock(T); |
12 | int takeintint(int (^C)(int)) { return C(4); } |
13 | |
14 | T somefunction() { |
15 | if (^{ }) |
16 | nothing(); |
17 | |
18 | noop = ^{}; |
19 | |
20 | noop = ^{printf("\nClosure\n"); }; |
21 | |
22 | I(^{ }); |
23 | |
24 | return ^{printf("\nClosure\n"); }; |
25 | } |
26 | void test2() { |
27 | int x = 4; |
28 | |
29 | takeblock(^{ printf("%d\n", x); }); |
30 | |
31 | while (1) { |
32 | takeblock(^{ |
33 | break; // expected-error {{'break' statement not in loop or switch statement}} |
34 | continue; // expected-error {{'continue' statement not in loop statement}} |
35 | while(1) break; // ok |
36 | goto foo; // expected-error {{use of undeclared label 'foo'}} |
37 | a: goto a; // ok |
38 | }); |
39 | break; |
40 | } |
41 | |
42 | foo: |
43 | takeblock(^{ x = 4; }); // expected-error {{variable is not assignable (missing __block type specifier)}} |
44 | __block y = 7; // expected-warning {{type specifier missing, defaults to 'int'}} |
45 | takeblock(^{ y = 8; }); |
46 | } |
47 | |
48 | |
49 | void (^test3())(void) { |
50 | return ^{}; |
51 | } |
52 | |
53 | void test4() { |
54 | void (^noop)(void) = ^{}; |
55 | void (*noop2)() = 0; |
56 | } |
57 | |
58 | void myfunc(int (^block)(int)) {} |
59 | |
60 | void myfunc3(const int *x); |
61 | |
62 | void test5() { |
63 | int a; |
64 | |
65 | myfunc(^(int abcd) { |
66 | myfunc3(&a); |
67 | return 1; |
68 | }); |
69 | } |
70 | |
71 | void *X; |
72 | |
73 | void test_arguments() { |
74 | int y; |
75 | int (^c)(char); |
76 | (1 ? c : 0)('x'); |
77 | (1 ? 0 : c)('x'); |
78 | |
79 | (1 ? c : c)('x'); |
80 | } |
81 | |
82 | static int global_x = 10; |
83 | void (^global_block)(void) = ^{ printf("global x is %d\n", global_x); }; |
84 | |
85 | typedef void (^void_block_t)(void); |
86 | |
87 | static const void_block_t myBlock = ^{ }; |
88 | |
89 | static const void_block_t myBlock2 = ^ void(void) { }; |
90 | |