Files
mercury/tests/stm/atomic_or_else.m
Zoltan Somogyi fdd141bf77 Clean up the tests in the other test directories.
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.
2015-02-16 12:32:18 +11:00

64 lines
1.5 KiB
Mathematica

%---------------------------------------------------------------------------%
% vim: ts=4 sw=4 et ft=mercury
%---------------------------------------------------------------------------%
%
% From orig/stm-compiler/test9
%
% Basic test of or_else: that it gets executed when the atomic scope it is
% attached to retries, and that it is able to bind a variable that was
% bound in the atomic scope before the retry.
%
:- module atomic_or_else.
:- interface.
:- import_module io.
:- pred main(io::di, io::uo) is cc_multi.
%---------------------------------------------------------------------------%
%---------------------------------------------------------------------------%
:- implementation.
:- import_module stm_builtin.
:- pred det_retry(int::in, stm::ui) is det.
det_retry(X, Stm) :-
trace [io(!IO)] (
write(X, !IO), nl(!IO)
),
retry(Stm).
%---------------------------------------------------------------------------%
main(IO0, IO) :-
atomic [outer(IO0, IO1), inner(STM0, STM1)] (
X = 1,
STM0 = STM1,
det_retry(X, STM1)
or_else
X = 2,
STM0 = STM1,
det_retry(X, STM1)
or_else
X = 3,
STM0 = STM1,
det_retry(X, STM1)
or_else
X = 4,
STM0 = STM1,
det_retry(X, STM1)
or_else
X = 5,
STM0 = STM1
),
write(X, IO1, IO2),
nl(IO2, IO).
%---------------------------------------------------------------------------%
%---------------------------------------------------------------------------%