Files
mercury/tests/hard_coded/multi_arm_switch.m
Zoltan Somogyi 33eb3028f5 Clean up the tests in half the test directories.
tests/accumulator/*.m:
tests/analysis_*/*.m:
tests/benchmarks*/*.m:
tests/debugger*/*.{m,exp,inp}:
tests/declarative_debugger*/*.{m,exp,inp}:
tests/dppd*/*.m:
tests/exceptions*/*.m:
tests/general*/*.m:
tests/grade_subdirs*/*.m:
tests/hard_coded*/*.m:
    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 debugger tests,
    specify the new line numbers in .inp files and expect them in .exp files.
2015-02-14 20:14:03 +11:00

76 lines
1.5 KiB
Mathematica

%---------------------------------------------------------------------------%
% vim: ft=mercury ts=4 sw=4 et
%---------------------------------------------------------------------------%
%
% This is a test to check the proper functioning of the code that looks for
% multi-cons_id switch arms in which one of the cons_ids also has its own
% switch arm. Some old versions of the compiler had an overzealous sanity check
% that would cause a compiler abort on this code.
:- module multi_arm_switch.
:- interface.
:- import_module io.
:- pred main(io::di, io::uo) is det.
:- implementation.
:- import_module maybe.
:- import_module require.
:- import_module solutions.
:- type t
---> cmd_quit
; cmd_menu
; cmd_clique
; cmd_dump_clique
; cmd_root.
main(!IO) :-
read_t(MaybeX, !IO),
(
MaybeX = yes(X),
solutions(p(X), Solns),
io.write(Solns, !IO),
io.nl(!IO),
main(!IO)
;
MaybeX = no
).
:- pred p(t::in, int::out) is multi.
p(X, N) :-
(
X = cmd_quit,
N = 1
;
X = cmd_menu,
N = 2
;
X = cmd_clique,
N = 3
;
( X = cmd_clique
; X = cmd_dump_clique
; X = cmd_root
),
N = 4
).
:- pred read_t(maybe(t)::out, io::di, io::uo) is det.
read_t(MaybeX, !IO) :-
io.read(Res, !IO),
(
Res = ok(X),
MaybeX = yes(X)
;
Res = error(_, _),
error("I/O error")
;
Res = eof,
MaybeX = no
).