mirror of
https://github.com/Mercury-Language/mercury.git
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66 lines
1.9 KiB
Mathematica
66 lines
1.9 KiB
Mathematica
%---------------------------------------------------------------------------%
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% vim: ts=4 sw=4 et ft=mercury
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%---------------------------------------------------------------------------%
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:- module multimode_syntax.
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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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main(!IO).
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:- func func0 = string.
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:- mode func0 = out is det.
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func0 = "func0 = out" :: out. % missing parentheses
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:- func func1(int) = string.
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:- mode func1(in) = out is det.
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:- mode func1(out) = out is det.
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func1(_::in) = "func1(in) = out". % missing mode annotation on return value
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func1(0) = ("func1(out) = out" :: out). % missing mode annotation on argument
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:- func func2(int, int) = string.
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:- mode func2(in, in) = out is det.
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func2(_::in, _::in) = (R::out) :-
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R = "func2(in, in) = out".
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func2(_::in, 0::out) = (R::out) :- % reference to undeclared mode
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R = "func2(in, out) = out".
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func2(0::out, _::in) = (R::out) :-
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R = "func2(out, in) = out".
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func2(0::out, 0::out) = (R::out) :-
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R = "func2(out, out) = out".
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:- func func2b(int, int) = string.
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func2b(_::in, _::out) = (R::out) :- % another reference to undeclared mode
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R = "func3(in, out) = out".
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:- impure pred pred2b(int, int).
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pred2b(_::in, 0::out) :- % another reference to undeclared mode
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impure puts("func3(in, out) = out").
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:- impure pred test2(int, int).
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:- mode test2(in, in) is det.
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:- mode test2(in, out) is det.
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:- mode test2(out, in) is det.
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:- mode test2(out, out) is det.
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test2(_::in, _) :- % missing mode annotation on 2nd arg
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impure puts("test2(in, in)").
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test2(_, 0::out) :- % missing mode annotation on 1st arg
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impure puts("test2(in, out)").
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test2(0::out, _::in) :-
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impure puts("test2(out, in)").
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test2(0::out, 0::out) :-
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impure puts("test2(out, out)").
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:- impure pred puts(string::in) is det.
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puts(_).
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:- pragma foreign_proc("C",
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puts(S::in),
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[will_not_call_mercury],
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"
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puts(S);
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").
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