[6d43cdde] | 1 | // Testing Interactions Between Termination and Resumption |
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| 2 | |
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| 3 | #include "except-mac.hfa" |
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| 4 | #include "except-io.hfa" |
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| 5 | |
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| 6 | TRIVIAL_EXCEPTION(star); |
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[3eb5a478] | 7 | TRIVIAL_EXCEPTION(moon); |
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[6d43cdde] | 8 | |
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| 9 | int main(int argc, char * argv[]) { |
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| 10 | // Resume falls back to terminate. |
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| 11 | try { |
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| 12 | THROW_RESUME(&(star){}); |
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| 13 | } catch (star *) { |
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| 14 | printf("caught as termination\n"); |
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| 15 | } |
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| 16 | // Variant of the above to check timing. |
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| 17 | try { |
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| 18 | loud_region a = "try block with resume throw"; |
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| 19 | THROW_RESUME(&(star){}); |
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| 20 | } catch (star *) { |
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| 21 | printf("caught as termination\n"); |
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| 22 | } catchResume (star *) { |
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| 23 | printf("intermediate rethrow\n"); |
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| 24 | throwResume; |
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| 25 | } |
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| 26 | printf("\n"); |
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| 27 | |
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| 28 | // Resume does not catch terminate. |
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| 29 | try { |
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| 30 | try { |
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| 31 | THROW(&(star){}); |
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| 32 | } catchResume (star *) { |
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| 33 | printf("resume catch on terminate\n"); |
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| 34 | } |
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| 35 | } catchResume (star *) { |
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| 36 | printf("resume catch on terminate\n"); |
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| 37 | } catch (star *) { |
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| 38 | printf("terminate catch on terminate\n"); |
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| 39 | } |
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| 40 | printf("\n"); |
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| 41 | |
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| 42 | // Terminate does not catch resume. |
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| 43 | try { |
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| 44 | try { |
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| 45 | THROW_RESUME(&(star){}); |
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| 46 | } catch (star *) { |
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| 47 | printf("terminate catch on resume\n"); |
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| 48 | } |
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| 49 | } catch (star *) { |
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| 50 | printf("terminate catch on resume\n"); |
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| 51 | } catchResume (star *) { |
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| 52 | printf("resume catch on resume\n"); |
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| 53 | } |
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[3eb5a478] | 54 | printf("\n"); |
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| 55 | |
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| 56 | // Resume a termination exception. |
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| 57 | try { |
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| 58 | try { |
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| 59 | try { |
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| 60 | THROW(&(star){}); |
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| 61 | } catchResume (star *) { |
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| 62 | printf("inner resume catch (error)\n"); |
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| 63 | } |
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| 64 | } catch (star * error) { |
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| 65 | printf("termination catch, will resume\n"); |
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| 66 | THROW_RESUME(error); |
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| 67 | } |
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| 68 | } catchResume (star *) { |
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| 69 | printf("outer resume catch\n"); |
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| 70 | } |
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| 71 | printf("\n"); |
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| 72 | |
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| 73 | // Terminate a resumption exception. |
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| 74 | try { |
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| 75 | try { |
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| 76 | try { |
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| 77 | THROW_RESUME(&(star){}); |
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| 78 | } catch (star *) { |
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| 79 | printf("inner termination catch\n"); |
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| 80 | } |
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| 81 | } catchResume (star * error) { |
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| 82 | printf("resumption catch, will terminate\n"); |
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| 83 | THROW(error); |
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| 84 | } |
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| 85 | } catch (star *) { |
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| 86 | printf("outer terminate catch (error)\n"); |
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| 87 | } |
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| 88 | #if 0 |
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| 89 | printf("\n"); |
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| 90 | |
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| 91 | // Unwinding a resumption catch does not break the system. |
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| 92 | try { |
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| 93 | try { |
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| 94 | try { |
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| 95 | try { |
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| 96 | printf("throwing resume moon\n"); |
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| 97 | THROW_RESUME(&(moon){}); |
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| 98 | } catch (star *) { |
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| 99 | printf("termination catch\n"); |
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| 100 | } |
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| 101 | printf("throwing resume star\n"); |
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| 102 | THROW_RESUME(&(star){}); |
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| 103 | } catchResume (star *) { |
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| 104 | printf("resumption star catch\n"); |
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| 105 | } |
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| 106 | } catchResume (moon *) { |
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| 107 | printf("resumption moon catch, will terminate\n"); |
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| 108 | THROW(&(star){}); |
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| 109 | } |
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| 110 | } catchResume (star *) { |
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| 111 | printf("outermost catch (error)\n"); |
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| 112 | } |
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| 113 | #endif |
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[6d43cdde] | 114 | } |
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