[6d43cdde] | 1 | // Testing Interactions Between Termination and Resumption
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| 2 |
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[e68d092] | 3 | #include <exception.hfa>
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[6d43cdde] | 4 | #include "except-io.hfa"
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| 5 |
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[ecfd758] | 6 | EHM_EXCEPTION(star)();
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| 7 | EHM_EXCEPTION(moon)();
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| 8 |
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| 9 | EHM_VIRTUAL_TABLE(star, star_vt);
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| 10 | EHM_VIRTUAL_TABLE(moon, moon_vt);
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[6d43cdde] | 11 |
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| 12 | int main(int argc, char * argv[]) {
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| 13 | // Resume falls back to terminate.
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| 14 | try {
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[ecfd758] | 15 | throwResume (star){&star_vt};
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[6d43cdde] | 16 | } catch (star *) {
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| 17 | printf("caught as termination\n");
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| 18 | }
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| 19 | // Variant of the above to check timing.
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| 20 | try {
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| 21 | loud_region a = "try block with resume throw";
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[ecfd758] | 22 | throwResume (star){&star_vt};
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[6d43cdde] | 23 | } catch (star *) {
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| 24 | printf("caught as termination\n");
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| 25 | } catchResume (star *) {
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| 26 | printf("intermediate rethrow\n");
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| 27 | throwResume;
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| 28 | }
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| 29 | printf("\n");
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| 30 |
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| 31 | // Resume does not catch terminate.
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| 32 | try {
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| 33 | try {
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[ecfd758] | 34 | throw (star){&star_vt};
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[6d43cdde] | 35 | } catchResume (star *) {
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| 36 | printf("resume catch on terminate\n");
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| 37 | }
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| 38 | } catchResume (star *) {
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| 39 | printf("resume catch on terminate\n");
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| 40 | } catch (star *) {
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| 41 | printf("terminate catch on terminate\n");
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| 42 | }
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| 43 | printf("\n");
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| 44 |
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| 45 | // Terminate does not catch resume.
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| 46 | try {
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| 47 | try {
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[ecfd758] | 48 | throwResume (star){&star_vt};
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[6d43cdde] | 49 | } catch (star *) {
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| 50 | printf("terminate catch on resume\n");
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| 51 | }
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| 52 | } catch (star *) {
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| 53 | printf("terminate catch on resume\n");
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| 54 | } catchResume (star *) {
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| 55 | printf("resume catch on resume\n");
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| 56 | }
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[3eb5a478] | 57 | printf("\n");
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| 58 |
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| 59 | // Resume a termination exception.
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| 60 | try {
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| 61 | try {
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| 62 | try {
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[ecfd758] | 63 | throw (star){&star_vt};
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[3eb5a478] | 64 | } catchResume (star *) {
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| 65 | printf("inner resume catch (error)\n");
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| 66 | }
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| 67 | } catch (star * error) {
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| 68 | printf("termination catch, will resume\n");
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[046a890] | 69 | throwResume *error;
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[3eb5a478] | 70 | }
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| 71 | } catchResume (star *) {
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| 72 | printf("outer resume catch\n");
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| 73 | }
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| 74 | printf("\n");
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| 75 |
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| 76 | // Terminate a resumption exception.
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| 77 | try {
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| 78 | try {
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| 79 | try {
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[ecfd758] | 80 | throwResume (star){&star_vt};
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[3eb5a478] | 81 | } catch (star *) {
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| 82 | printf("inner termination catch\n");
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| 83 | }
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| 84 | } catchResume (star * error) {
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| 85 | printf("resumption catch, will terminate\n");
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[046a890] | 86 | throw *error;
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[3eb5a478] | 87 | }
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| 88 | } catch (star *) {
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| 89 | printf("outer terminate catch (error)\n");
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| 90 | }
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| 91 | printf("\n");
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| 92 |
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| 93 | // Unwinding a resumption catch does not break the system.
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| 94 | try {
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| 95 | try {
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| 96 | try {
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| 97 | try {
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| 98 | printf("throwing resume moon\n");
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[ecfd758] | 99 | throwResume (moon){&moon_vt};
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[3eb5a478] | 100 | } catch (star *) {
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| 101 | printf("termination catch\n");
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| 102 | }
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| 103 | printf("throwing resume star\n");
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[ecfd758] | 104 | throwResume (star){&star_vt};
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[3eb5a478] | 105 | } catchResume (star *) {
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| 106 | printf("resumption star catch\n");
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| 107 | }
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| 108 | } catchResume (moon *) {
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| 109 | printf("resumption moon catch, will terminate\n");
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[ecfd758] | 110 | throw (star){&star_vt};
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[3eb5a478] | 111 | }
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| 112 | } catchResume (star *) {
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| 113 | printf("outermost catch (error)\n");
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| 114 | }
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[6d43cdde] | 115 | }
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