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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.
55 lines
1.1 KiB
Mathematica
55 lines
1.1 KiB
Mathematica
%---------------------------------------------------------------------------%
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% vim: ts=4 sw=4 et ft=mercury
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%---------------------------------------------------------------------------%
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%
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% Test the warning for infinite recursion.
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%
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%---------------------------------------------------------------------------%
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:- module infinite_recursion.
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:- interface.
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:- import_module io.
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:- pred main(io::di, io::uo) is det.
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:- implementation.
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:- import_module int.
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:- import_module list.
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main(!IO) :-
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( if
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funny_append([1, 2, 3], [4, 5, 6], Ns),
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sum(Ns, 0, Sum),
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Sum < 42
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then
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main(!IO)
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else
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loop
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).
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:- pred loop is det.
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loop :-
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( if semidet_succeed then
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loop
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else
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true
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).
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:- pred funny_append(list(T)::in, list(T)::in, list(T)::out) is det.
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funny_append(L1, L2, L3) :-
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(
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L1 = [], L2 = L3
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;
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L1 = [X | _Xs], L3 = [X | Zs],
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funny_append(L1, L2, Zs) % L1 should be _Xs.
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).
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:- pred sum(list(int)::in, int::in, int::out) is det.
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sum([], !Sum).
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sum([N | Ns], !Sum) :-
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!:Sum = !.Sum + N,
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sum([N | Ns], !Sum). % [N | Ns] should be N.
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