mirror of
https://github.com/Mercury-Language/mercury.git
synced 2026-04-18 19:03:45 +00:00
83dc913329
tests/warnings/*.m:
Bring the programming style of these modules up to date,
except where the problem being tested for seems to be related
to the old programming style
In the infinite_recursion test case, add code that we *should*
warn about, but currently don't.
tests/warnings/*.m:
Update the expected outputs to account for the changes in line
numbers, and the fact that the compiler computes the contexts
of (if C then T else E) if-then-elses differently from (C -> T; E)
if-then-else (it takes the context of the "then" vs the context
of the ";").
Delete arg_order_rearrangment.exp2. It was long unused, but
deleting it in CVS would not have allowed us to put it back later.
44 lines
912 B
Mathematica
44 lines
912 B
Mathematica
%---------------------------------------------------------------------------%
|
|
% vim: ts=4 sw=4 et ft=mercury
|
|
%---------------------------------------------------------------------------%
|
|
%
|
|
% This test case isn't really testing warnings,
|
|
% it is actually testing that the compiler
|
|
% prints out the right type/mode inference message.
|
|
%
|
|
%---------------------------------------------------------------------------%
|
|
|
|
:- module inference_test.
|
|
:- interface.
|
|
:- import_module io.
|
|
|
|
:- pred main(io::di, io::uo) is det.
|
|
|
|
:- implementation.
|
|
:- import_module int.
|
|
:- import_module list.
|
|
|
|
main(!IO) :-
|
|
io.print(len_func([42]), !IO),
|
|
io.nl(!IO).
|
|
|
|
len_func(List) = Len :-
|
|
len(List, Len).
|
|
|
|
len([], zero).
|
|
len([_ | Xs], N) :-
|
|
len(Xs, N - 1).
|
|
|
|
:- typeclass null(T) where [
|
|
func zero = T
|
|
].
|
|
|
|
:- instance null(int) where [
|
|
func(zero/0) is int_zero
|
|
].
|
|
|
|
int_zero = 0.
|
|
|
|
unused_pred([X], [_]) :-
|
|
X = zero.
|