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https://github.com/Mercury-Language/mercury.git
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fa77e70a46
tests/valid/*: Renamed `*.nl' as `*.m'. Added a few new test cases. Removed a couple of duplicate test cases. Fixed up the Mmake file so that `mmake check' now works.
48 lines
811 B
Mathematica
48 lines
811 B
Mathematica
:- module switches.
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:- type t ---> a ; b ; c.
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:- type f ---> f(t).
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% Basic first-argument indexing.
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:- pred first_arg(t::in, int::out) is det.
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first_arg(a, 1).
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first_arg(b, 2).
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first_arg(c, 3).
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% Second-argument indexing.
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:- pred second_arg(int::out, t::in) is det.
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second_arg(1, a).
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second_arg(2, b).
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second_arg(3, c).
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% Indexing of explicit disjunctions.
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:- pred explict_disj(t::in, int::out) is det.
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explict_disj(X, Y) :-
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X = a, Y = 1
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;
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X = b, Y = 2
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;
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X = c, Y = 3.
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% Chained indexing.
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:- pred chained(t::in, int::out) is det.
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chained(X, Y) :-
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X = X1, X1 = a, Y = 1.
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chained(X, Y) :-
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X = X2, X2 = b, Y = 2.
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chained(X, Y) :-
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X = X3, X3 = c, Y = 3.
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% Multi-level indexing.
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:- pred multi_level(f::in, int::out) is det.
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multi_level(f(a), 1).
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multi_level(f(b), 2).
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multi_level(f(c), 3).
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