mirror of
https://github.com/Mercury-Language/mercury.git
synced 2026-04-19 19:33:46 +00:00
49 lines
1.1 KiB
Mathematica
49 lines
1.1 KiB
Mathematica
%---------------------------------------------------------------------------%
|
|
% vim: ts=4 sw=4 et ft=mercury
|
|
%---------------------------------------------------------------------------%
|
|
%
|
|
% Same as functor_ho_inst except the extra functor argument makes it a
|
|
% proper du functor rather than a notag functor.
|
|
%
|
|
|
|
:- module functor_ho_inst_2.
|
|
:- interface.
|
|
|
|
:- import_module io.
|
|
|
|
:- pred main(io::di, io::uo) is det.
|
|
|
|
:- implementation.
|
|
|
|
%---------------------------------------------------------------------------%
|
|
|
|
:- import_module list.
|
|
|
|
main(!IO) :-
|
|
Jobs = [job(1, j1), job(2, j2)],
|
|
list.foldl(run, Jobs, !IO).
|
|
|
|
%---------------------------------------------------------------------------%
|
|
|
|
:- type job
|
|
---> job(int, pred(job_result::out, io::di, io::uo) is det).
|
|
|
|
:- type job_result
|
|
---> job_result_ok
|
|
; job_result_failed.
|
|
|
|
:- pred run(job::in, io::di, io::uo) is det.
|
|
|
|
run(Job, !IO) :-
|
|
Job = job(_, Pred),
|
|
Pred(Result, !IO),
|
|
io.write_line(Result, !IO).
|
|
|
|
:- pred j1(job_result::out, io::di, io::uo) is det.
|
|
|
|
j1(job_result_ok, !IO).
|
|
|
|
:- pred j2(job_result::out, io::di, io::uo) is det.
|
|
|
|
j2(job_result_failed, !IO).
|