Files
mercury/tests/hard_coded/agg.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

135 lines
3.9 KiB
Mathematica

%---------------------------------------------------------------------------%
% vim: ts=4 sw=4 et ft=mercury
%---------------------------------------------------------------------------%
%
% This is a regression test for a couple of bugs relating to
% code generation for higher-order code.
:- module agg.
:- interface.
:- import_module maybe.
:- import_module pair.
:- import_module io.
:- type agg_func(T, S) ---> agg(S, func(S, T) = S).
:- inst agg_mode == bound(agg(ground, func(in, in) = out is det)).
:- mode agg_in == agg_mode >> agg_mode.
:- mode agg_out == free >> agg_mode.
:- pred aggregate(pred(T), agg_func(T, S), S).
:- mode aggregate(pred(out) is multi, agg_in, out) is det.
:- mode aggregate(pred(out) is nondet, agg_in, out) is det.
:- func agg_pair(agg_func(T, S1), agg_func(T, S2)) = agg_func(T, pair(S1, S2)).
:- mode agg_pair(agg_in, agg_in) = agg_out is det.
:- func count = agg_func(T, int).
:- mode count = agg_out is det.
:- func count(pred(T)) = int.
:- mode count(pred(out) is multi) = out is det.
:- mode count(pred(out) is nondet) = out is det.
:- func sum(func(T) = int) = agg_func(T, int).
:- mode sum(func(in) = out is det) = agg_out is det.
:- func sum_agg(pred(T), func(T) = int) = int.
:- mode sum_agg(pred(out) is multi, func(in) = out is det) = out is det.
:- mode sum_agg(pred(out) is nondet, func(in) = out is det) = out is det.
:- func avg_agg(pred(T), func(T) = int) = maybe(float).
:- mode avg_agg(pred(out) is multi, func(in) = out is det) = out is det.
:- mode avg_agg(pred(out) is nondet, func(in) = out is det) = out is det.
:- func min(func(T) = int) = agg_func(T, maybe(int)).
:- mode min(func(in) = out is det) = agg_out is det.
:- func sum_and_min(func(T) = int) = agg_func(T, pair(int, maybe(int))).
:- mode sum_and_min(func(in) = out is det) = agg_out is det.
:- func sumF(func(T) = float) = agg_func(T, float).
:- mode sumF(func(in) = out is det) = agg_out is det.
:- func wsumF(func(T) = pair(float)) = agg_func(T, float).
:- mode wsumF(func(in) = out is det) = agg_out is det.
:- func minF(func(T) = float) = agg_func(T, maybe(float)).
:- mode minF(func(in) = out is det) = agg_out is det.
:- func sumF_and_minF(func(T) = float) = agg_func(T, pair(float, maybe(float))).
:- mode sumF_and_minF(func(in) = out is det) = agg_out is det.
:- pred main(io__state::di, io__state::uo) is det.
:- implementation.
:- import_module float.
:- import_module int.
:- import_module list.
:- import_module solutions.
aggregate(P, agg(S0, F), S) :-
A = (pred(Val::in, Acc0::in, Acc::out) is det :- Acc = F(Acc0, Val)),
solutions(P, L), list__foldl(A, L, S0, S).
agg_pair(agg(S1, F1), agg(S2, F2)) = agg(S1-S2, F) :-
F = (func(Acc1-Acc2, Val) = F1(Acc1, Val)-F2(Acc2, Val)).
count = agg(0, func(X, _) = X + 1).
count(P) = C :-
aggregate(P, count, C).
sum(F) = agg(0, func(X, Y) = X + F(Y)).
sum_agg(P, F) = S :- aggregate(P, sum(F), S).
avg_agg(P, F) = A :-
aggregate(P, agg_pair(count, sum(F)), C-S),
( C = 0 ->
A = no
; C1 = float__float(C),
S1 = float__float(S),
A = yes(S1/C1)
).
min(F) = agg(no, func(Acc, Val) = min(Acc, F(Val))).
:- func min(maybe(int), int) = maybe(int).
min(no, Val) = yes(Val).
min(yes(Acc), Val) = yes(Acc < Val -> Acc ; Val).
sum_and_min(F) = agg_pair(sum(F), min(F)).
sumF(F) = agg(0.0, func(X, Y) = X + F(Y)).
wsumF(F) = agg(0.0, (func(X, Y) = X + Y1 * Y2 :- F(Y) = Y1-Y2)).
minF(F) = agg(no, func(Acc0, Val) = minF(Acc0, F(Val))).
:- func minF(maybe(float), float) = maybe(float).
minF(no, Val) = yes(Val).
minF(yes(Acc), Val) = yes(Acc < Val -> Acc ; Val).
sumF_and_minF(F) = agg_pair(sumF(F), minF(F)).
:- pred iota(int::in, int::in, int::out) is nondet.
iota(N, M, I) :-
N < M,
(
I = N
;
iota(N+1, M, I)
).
main -->
{F = (func(N::in) = (M::out) is det :- M = N*N)},
{aggregate(iota(1, 10), agg_pair(count, agg_pair(sum(F), min(F))), A)},
io__write(A),
io__nl.