| 1 | // RUN: %clang_cc1 -triple x86_64-apple-darwin11 -fsyntax-only -fobjc-arc -fblocks -verify -Wno-objc-root-class %s |
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| 2 | // rdar://9535237 |
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| 3 | |
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| 4 | typedef struct dispatch_queue_s *dispatch_queue_t; |
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| 5 | |
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| 6 | typedef void (^dispatch_block_t)(void); |
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| 7 | |
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| 8 | void dispatch_async(dispatch_queue_t queue, dispatch_block_t block); |
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| 9 | |
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| 10 | extern __attribute__((visibility("default"))) struct dispatch_queue_s _dispatch_main_q; |
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| 11 | |
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| 12 | @interface SwitchBlockCrashAppDelegate |
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| 13 | - (void)pageLeft; |
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| 14 | - (void)pageRight;; |
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| 15 | @end |
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| 16 | |
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| 17 | @implementation SwitchBlockCrashAppDelegate |
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| 18 | |
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| 19 | - (void)choose:(int)button { |
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| 20 | switch (button) { |
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| 21 | case 0: |
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| 22 | dispatch_async((&_dispatch_main_q), ^{ [self pageLeft]; }); // expected-note 3 {{jump enters lifetime of block which strongly captures a variable}} |
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| 23 | break; |
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| 24 | case 2: // expected-error {{cannot jump}} |
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| 25 | dispatch_async((&_dispatch_main_q), ^{ [self pageRight]; }); // expected-note 2 {{jump enters lifetime of block which strongly captures a variable}} |
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| 26 | break; |
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| 27 | case 3: // expected-error {{cannot jump}} |
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| 28 | { |
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| 29 | dispatch_async((&_dispatch_main_q), ^{ [self pageRight]; }); |
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| 30 | break; |
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| 31 | } |
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| 32 | case 4: // expected-error {{cannot jump}} |
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| 33 | break; |
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| 34 | } |
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| 35 | |
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| 36 | __block SwitchBlockCrashAppDelegate *captured_block_obj; |
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| 37 | switch (button) { |
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| 38 | case 10: |
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| 39 | { |
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| 40 | dispatch_async((&_dispatch_main_q), ^{ [self pageLeft]; }); |
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| 41 | break; |
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| 42 | } |
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| 43 | case 12: |
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| 44 | if (button) |
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| 45 | dispatch_async((&_dispatch_main_q), ^{ [captured_block_obj pageRight]; }); |
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| 46 | break; |
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| 47 | case 13: |
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| 48 | while (button) |
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| 49 | dispatch_async((&_dispatch_main_q), ^{ [self pageRight]; }); |
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| 50 | break; |
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| 51 | case 14: |
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| 52 | break; |
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| 53 | } |
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| 54 | |
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| 55 | switch (button) { |
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| 56 | case 10: |
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| 57 | { |
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| 58 | dispatch_async((&_dispatch_main_q), ^{ [self pageLeft]; }); |
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| 59 | break; |
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| 60 | } |
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| 61 | case 12: |
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| 62 | if (button) |
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| 63 | dispatch_async((&_dispatch_main_q), ^{ [self pageRight]; }); |
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| 64 | switch (button) { |
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| 65 | case 0: |
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| 66 | { |
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| 67 | dispatch_async((&_dispatch_main_q), ^{ [self pageLeft]; }); |
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| 68 | break; |
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| 69 | } |
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| 70 | case 4: |
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| 71 | break; |
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| 72 | } |
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| 73 | break; |
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| 74 | case 13: |
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| 75 | while (button) |
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| 76 | dispatch_async((&_dispatch_main_q), ^{ [self pageRight]; }); |
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| 77 | break; |
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| 78 | case 14: |
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| 79 | break; |
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| 80 | } |
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| 81 | } |
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| 82 | - (void)pageLeft {} |
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| 83 | - (void)pageRight {} |
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| 84 | @end |
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| 85 | |
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| 86 | // Test 2. rdar://problem/11150919 |
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| 87 | int test2(id obj, int state) { // expected-note {{jump enters lifetime of block}} FIXME: weird location |
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| 88 | switch (state) { |
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| 89 | case 0: |
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| 90 | (void) ^{ (void) obj; }; |
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| 91 | return 0; |
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| 92 | |
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| 93 | default: // expected-error {{cannot jump}} |
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| 94 | return 1; |
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| 95 | } |
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| 96 | } |
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| 97 | |
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| 98 | |
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