Files
mercury/tests/tabling/specified_hidden_arg.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

56 lines
1.1 KiB
Mathematica

%---------------------------------------------------------------------------%
% vim: ft=mercury ts=4 sw=4 et
%---------------------------------------------------------------------------%
% Test the hidden argument tabling method options
%
% :- pragma memo(..., [specified(...), hidden_arg_value]).
% :- pragma memo(..., [specified(...), hidden_arg_addr]).
:- module specified_hidden_arg.
:- interface.
:- import_module io.
:- pred main(io::di, io::uo) is det.
:- implementation.
:- import_module int.
:- pragma require_feature_set([memo]).
%---------------------------------------------------------------------------%
main(!IO) :-
p(foo(123), F1),
p(foo(123), F2),
q(42, F3),
io.write({F1, F2, F3}, !IO),
io.nl(!IO).
:- typeclass tc(T) where [
pred double(T::in, T::out) is det
].
:- type foo
---> foo(int).
:- instance tc(foo) where [
double(foo(F), foo(F + F))
].
:- pred p(T::in, T::out) is det <= tc(T).
:- pragma memo(p/2,
[specified([value, output], hidden_arg_addr)]).
p(F, G) :-
double(F, G).
:- pred q(T::in, T::out) is det.
:- pragma memo(q/2,
[specified([addr, output], hidden_arg_value)]).
q(X, X).