Files
mercury/tests/debugger/mutrec.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

284 lines
5.9 KiB
Mathematica

%---------------------------------------------------------------------------%
% vim: ts=4 sw=4 et ft=mercury
%---------------------------------------------------------------------------%
:- module mutrec.
:- interface.
:- import_module io.
:- pred main(io::di, io::uo) is det.
:- implementation.
%---------------------------------------------------------------------------%
:- import_module int.
:- import_module list.
:- type step
---> self
; mut(int)
; down.
main(!IO) :-
Steps1 = [self, mut(1), mut(3), self, mut(2), mut(2), self, down,
mut(1), mut(3), mut(3), mut(3), mut(3), self, self, down,
self, mut(2), mut(2), self, mut(3), self, down],
Steps2 = [self, mut(1), mut(3), self, mut(2), mut(2), self, down,
mut(1), mut(3), mut(3), mut(3), mut(3), self, self, down,
self, self, self, self, mut(3), self, down],
test(Steps1, RevStrs1),
test(Steps2, RevStrs2),
test_output(RevStrs1, !IO),
test_output(RevStrs2, !IO).
:- pred test(list(step)::in, list(string)::out) is det.
test(Steps, RevStrs) :-
p1(Steps, [], RevStrs).
:- pred test_output(list(string)::in, io::di, io::uo) is det.
test_output(RevStrs, !IO) :-
list.reverse(RevStrs, Strs),
(
Strs = [],
io.write_string("[]\n", !IO)
;
Strs = [HeadStr | TailStrs],
io.write_string("[", !IO),
io.write_string(HeadStr, !IO),
write_comma_strings(TailStrs, !IO),
io.write_string("]\n", !IO)
).
:- pred write_comma_strings(list(string)::in, io::di, io::uo) is det.
write_comma_strings([], !IO).
write_comma_strings([Str | Strs], !IO) :-
io.write_string(", ", !IO),
io.write_string(Str, !IO),
write_comma_strings(Strs, !IO).
%---------------------------------------------------------------------------%
:- pred p1(list(step)::in, list(string)::in, list(string)::out) is det.
p1([], A, A).
p1([Step | Steps], A, R) :-
B = ["p1" | A],
(
Step = self,
p1(Steps, B, R)
;
Step = mut(N),
( N = 2 ->
p2(Steps, B, R)
;
p3(Steps, B, R)
)
;
Step = down,
q1(Steps, B, R)
).
:- pred p2(list(step)::in, list(string)::in, list(string)::out) is det.
p2([], A, A).
p2([Step | Steps], A, R) :-
B = ["p2" | A],
(
Step = self,
p2(Steps, B, R)
;
Step = mut(N),
( N = 1 ->
p1(Steps, B, R)
;
p3(Steps, B, R)
)
;
Step = down,
q1(Steps, B, R)
).
:- pred p3(list(step)::in, list(string)::in, list(string)::out) is det.
p3([], A, A).
p3([Step | Steps], A, R) :-
B = ["p3" | A],
(
Step = self,
p3(Steps, B, R)
;
Step = mut(N),
( N = 1 ->
p1(Steps, B, R)
;
p2(Steps, B, R)
)
;
Step = down,
q1(Steps, B, R)
).
%---------------------------------------------------------------------------%
:- pred q1(list(step)::in, list(string)::in, list(string)::out) is det.
q1([], A, A).
q1([Step | Steps], A, R) :-
B = ["q1" | A],
(
Step = self,
q1(Steps, B, R)
;
Step = mut(N),
( N = 2 ->
q2(Steps, B, R)
;
q3(Steps, B, R)
)
;
Step = down,
r0a(Steps, B, R)
).
:- pred q2(list(step)::in, list(string)::in, list(string)::out) is det.
q2([], A, A).
q2([Step | Steps], A, R) :-
B = ["q2" | A],
(
Step = self,
q2(Steps, B, R)
;
Step = mut(N),
( N = 1 ->
q1(Steps, B, R)
;
q3(Steps, B, R)
)
;
Step = down,
r0b(Steps, B, R)
).
:- pred q3(list(step)::in, list(string)::in, list(string)::out) is det.
q3([], A, A).
q3([Step | Steps], A, R) :-
B = ["q3" | A],
(
Step = self,
q3(Steps, B, R)
;
Step = mut(N),
( N = 1 ->
q1(Steps, B, R)
;
q2(Steps, B, R)
)
;
Step = down,
r0c(Steps, B, R)
).
%---------------------------------------------------------------------------%
:- pred r0a(list(step)::in, list(string)::in, list(string)::out) is det.
r0a(Steps, A, R) :-
B = ["r0a" | A],
r0b(Steps, B, R).
:- pred r0b(list(step)::in, list(string)::in, list(string)::out) is det.
r0b(Steps, A, R) :-
B = ["r0b" | A],
r0c(Steps, B, R).
:- pred r0c(list(step)::in, list(string)::in, list(string)::out) is det.
r0c(Steps, A, R) :-
B = ["r0c" | A],
r1(Steps, B, R).
:- pred r1(list(step)::in, list(string)::in, list(string)::out) is det.
r1([], A, A).
r1([Step | Steps], A, R) :-
B = ["r1" | A],
(
Step = self,
r1(Steps, B, R)
;
Step = mut(N),
( N = 2 ->
r2(Steps, B, R)
;
r3(Steps, B, R)
)
;
Step = down,
R = B
).
:- pred r2(list(step)::in, list(string)::in, list(string)::out) is det.
r2([], A, A).
r2([Step | Steps], A, R) :-
B = ["r2" | A],
(
Step = self,
r2(Steps, B, R)
;
Step = mut(N),
( N = 1 ->
r1(Steps, B, R)
;
r3(Steps, B, R)
)
;
Step = down,
s(1, B, R)
).
:- pred r3(list(step)::in, list(string)::in, list(string)::out) is det.
r3([], A, A).
r3([Step | Steps], A, R) :-
B = ["r3" | A],
(
Step = self,
r3(Steps, B, R)
;
Step = mut(N),
( N = 1 ->
r1(Steps, B, R)
;
r2(Steps, B, R)
)
;
Step = down,
s(3, B, R)
).
%---------------------------------------------------------------------------%
:- pred s(int::in, list(string)::in, list(string)::out) is det.
s(N, A, R) :-
B = ["s" | A],
( N > 0 ->
s(N-1, B, R)
;
R = B
).
%---------------------------------------------------------------------------%