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fdd141bf77
tests/invalid/*.{m,err_exp}:
tests/misc_tests/*.m:
tests/mmc_make/*.m:
tests/par_conj/*.m:
tests/purity/*.m:
tests/stm/*.m:
tests/string_format/*.m:
tests/structure_reuse/*.m:
tests/submodules/*.m:
tests/tabling/*.m:
tests/term/*.m:
tests/trailing/*.m:
tests/typeclasses/*.m:
tests/valid/*.m:
tests/warnings/*.{m,exp}:
Make these tests use four-space indentation, and ensure that
each module is imported on its own line. (I intend to use the latter
to figure out which subdirectories' tests can be executed in parallel.)
These changes usually move code to different lines. For the tests
that check compiler error messages, expect the new line numbers.
browser/cterm.m:
browser/tree234_cc.m:
Import only one module per line.
tests/hard_coded/boyer.m:
Fix something I missed.
113 lines
2.7 KiB
Mathematica
113 lines
2.7 KiB
Mathematica
%---------------------------------------------------------------------------%
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% vim: ts=4 sw=4 et ft=mercury
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%---------------------------------------------------------------------------%
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%
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:- module func_trail_test.
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:- interface.
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:- import_module io.
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:- pred main(io::di, io::uo) is det.
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:- implementation.
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:- import_module int.
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:- pragma promise_pure(main/2).
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main(!IO) :-
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( impure trail_test ->
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io.write_string("Success\n", !IO)
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;
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io.write_string("Failure\n", !IO)
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).
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:- impure pred trail_test is failure.
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trail_test :-
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small_int(I),
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impure trail_test_message("before", I, 0),
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impure enter(I),
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small_int(J),
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impure trail_test_message("inside", I, J),
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impure leave(I),
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impure trail_test_message("after", I, J),
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fail.
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:- pred small_int(int::out) is multi.
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small_int(1).
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small_int(2).
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small_int(3).
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:- impure pred trail_test_message(string::in, int::in, int::in) is det.
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:- impure pred enter(int::in) is det.
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:- impure pred leave(int::in) is det.
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:- pragma foreign_decl("C",
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"
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#include <stdio.h>
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#include ""mercury_trail.h""
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void enter_failing(int handle, MR_untrail_reason reason);
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void leave_failing(int handle, MR_untrail_reason reason);
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").
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:- pragma foreign_proc("C",
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trail_test_message(Prefix::in, I::in, J::in),
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[will_not_call_mercury, will_not_modify_trail],
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"
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printf(\"%s: %d %d\\n\", (char *)Prefix, (int)I, (int)J);
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").
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:- pragma foreign_code("C", "
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void enter_failing(int handle, MR_untrail_reason reason) {
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switch (reason) {
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case MR_exception:
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case MR_undo:
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case MR_retry:
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/* printf(""enter_failing: exception/undo/retry\n""); */
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printf(\"=> fail back inside: %d\\n\", handle);
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break;
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default:
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printf(\"enter_failing: default\\n\");
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break;
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}
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}
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void leave_failing(int handle, MR_untrail_reason reason) {
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switch (reason) {
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case MR_exception:
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case MR_undo:
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case MR_retry:
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/* printf(""leave_failing: exception/undo/retry\n""); */
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printf(\"<= fail back outside: %d\\n\", handle);
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break;
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case MR_commit:
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case MR_solve:
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printf(\"leave_failing: commit/solve\\n\");
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break;
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default:
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printf(\"leave_failing: default\\n\");
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/* we may need to do something if reason == MR_gc */
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break;
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}
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}
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").
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:- pragma foreign_proc("C",
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enter(I::in),
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[will_not_call_mercury, may_modify_trail],
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"
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printf(\">> enter (%d)\\n\", (int) I);
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MR_trail_function(leave_failing, (void *) I);
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").
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:- pragma foreign_proc("C",
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leave(I::in),
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[will_not_call_mercury, may_modify_trail],
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"
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printf(\"<< leave (%d)\\n\", (int) I);
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MR_trail_function(enter_failing, (void *) I);
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").
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