1 | // Tests for providing new default operations. |
---|
2 | |
---|
3 | #include <string.h> |
---|
4 | #include <exception.hfa> |
---|
5 | |
---|
6 | DATA_EXCEPTION(log_message)( |
---|
7 | char * msg; |
---|
8 | ); |
---|
9 | |
---|
10 | void ?{}(log_message & this, char * msg) { |
---|
11 | VTABLE_INIT(this, log_message); |
---|
12 | this.msg = msg; |
---|
13 | } |
---|
14 | |
---|
15 | char * get_log_message(log_message * this) { |
---|
16 | return this->msg; |
---|
17 | } |
---|
18 | |
---|
19 | VTABLE_INSTANCE(log_message)(get_log_message); |
---|
20 | |
---|
21 | // Logging messages don't have to be handled. |
---|
22 | void defaultResumptionHandler(log_message &) {} |
---|
23 | |
---|
24 | // And should never be used to terminate computation. |
---|
25 | void defaultTerminationHandler(log_message &) = void; |
---|
26 | |
---|
27 | void log_test(void) { |
---|
28 | // We can catch log: |
---|
29 | try { |
---|
30 | throwResume (log_message){(char *)"Should be printed.\n"}; |
---|
31 | } catchResume (log_message * this) { |
---|
32 | printf("%s", this->virtual_table->msg(this)); |
---|
33 | } |
---|
34 | // But we don't have to: |
---|
35 | throwResume (log_message){(char *)"Should not be printed.\n"}; |
---|
36 | } |
---|
37 | |
---|
38 | // I don't have a good use case for doing the same with termination. |
---|
39 | TRIVIAL_EXCEPTION(jump); |
---|
40 | void defaultTerminationHandler(jump &) { |
---|
41 | printf("jump default handler.\n"); |
---|
42 | } |
---|
43 | |
---|
44 | void jump_test(void) { |
---|
45 | try { |
---|
46 | throw (jump){}; |
---|
47 | } catch (jump * this) { |
---|
48 | printf("jump catch handler.\n"); |
---|
49 | } |
---|
50 | throw (jump){}; |
---|
51 | } |
---|
52 | |
---|
53 | TRIVIAL_EXCEPTION(first); |
---|
54 | TRIVIAL_EXCEPTION(unhandled_exception); |
---|
55 | |
---|
56 | void unhandled_test(void) { |
---|
57 | forall(dtype T | is_exception(T)) |
---|
58 | void defaultTerminationHandler(T &) { |
---|
59 | throw (unhandled_exception){}; |
---|
60 | } |
---|
61 | void defaultTerminationHandler(unhandled_exception &) { |
---|
62 | abort(); |
---|
63 | } |
---|
64 | try { |
---|
65 | throw (first){}; |
---|
66 | } catch (unhandled_exception * t) { |
---|
67 | printf("Catch unhandled_exception.\n"); |
---|
68 | } |
---|
69 | } |
---|
70 | |
---|
71 | TRIVIAL_EXCEPTION(second); |
---|
72 | |
---|
73 | void cross_test(void) { |
---|
74 | void defaultTerminationHandler(first &) { |
---|
75 | printf("cross terminate default\n"); |
---|
76 | throw (second){}; |
---|
77 | } |
---|
78 | void defaultResumptionHandler(first &) { |
---|
79 | printf("cross resume default\n"); |
---|
80 | throwResume (second){}; |
---|
81 | } |
---|
82 | try { |
---|
83 | printf("cross terminate throw\n"); |
---|
84 | throw (first){}; |
---|
85 | } catch (second *) { |
---|
86 | printf("cross terminate catch\n"); |
---|
87 | } |
---|
88 | try { |
---|
89 | printf("cross resume throw\n"); |
---|
90 | throwResume (first){}; |
---|
91 | } catchResume (second *) { |
---|
92 | printf("cross resume catch\n"); |
---|
93 | } |
---|
94 | } |
---|
95 | |
---|
96 | int main(int argc, char * argv[]) { |
---|
97 | log_test(); |
---|
98 | jump_test(); |
---|
99 | unhandled_test(); |
---|
100 | cross_test(); |
---|
101 | } |
---|