Files
mercury/tests/valid/instance_unconstrained_tvar.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

34 lines
780 B
Mathematica

%---------------------------------------------------------------------------%
% vim: ts=4 sw=4 et ft=mercury
%---------------------------------------------------------------------------%
:- module instance_unconstrained_tvar.
:- interface.
:- import_module list.
:- typeclass c1(T) where [ ].
:- typeclass c2(T) <= c1(T) where [ ].
:- instance c1(list(T)).
:- instance c2(list(T)).
:- pred p is det.
:- implementation.
:- instance c1(list(T)) where [].
:- instance c2(list(T)) where [].
p :-
% The bug that this test case is checking for is at the creation of
% the typeclass info for this call, when creating the type-info the
% the int (1), the type bindings were not being applied properly.
q([1]).
:- pred q(T) <= c2(T).
:- mode q(in) is det.
q(_).