mirror of
https://github.com/Mercury-Language/mercury.git
synced 2026-04-15 17:33:38 +00:00
fdd141bf77
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.
38 lines
981 B
Mathematica
38 lines
981 B
Mathematica
%---------------------------------------------------------------------------%
|
|
% vim: ts=4 sw=4 et ft=mercury
|
|
%---------------------------------------------------------------------------%
|
|
%
|
|
% This is a regression test for the case where there is a superclass
|
|
% relationship, and the instance declaration has a type variable in the
|
|
% instance type.
|
|
|
|
:- module instance_superclass.
|
|
|
|
:- interface.
|
|
|
|
:- import_module list.
|
|
|
|
:- typeclass c1(T) where [ ].
|
|
:- typeclass c2(T) <= c1(T) where [ ].
|
|
|
|
:- instance c1(list(T)).
|
|
:- instance c2(list(T)).
|
|
:- pred p(T::in) is det.
|
|
|
|
:- implementation.
|
|
|
|
:- instance c1(list(T)) where [].
|
|
:- instance c2(list(T)) where [].
|
|
|
|
p(X) :-
|
|
% The bug that this test case is checking for is at the creation of
|
|
% the typeclass info for this call: if the substitution from "T" in
|
|
% the typeclass decl to "list(T)" in the instance is applied recursively,
|
|
% an infinite loop results.
|
|
q([X]).
|
|
|
|
:- pred q(T) <= c2(T).
|
|
:- mode q(in) is det.
|
|
|
|
q(_).
|