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ecb5e4a9e6
tests/declarative_debugger/*.m:
tests/exceptions/*.m:
tests/general/*.m:
tests/grade_subdirs/*.m:
tests/purity/*.m:
tests/submodules/*.m:
tests/typeclasses/*.m:
Update programming style.
tests/declarative_debugger/*.inp:
Update line numbers in breakpoint commands.
tests/declarative_debugger/*.exp:
Update expected line numbers.
tests/exceptions/Mercury.options:
tests/general/Mercury.options:
Disable some warnings that are irrelevant to the test.
45 lines
1.2 KiB
Mathematica
45 lines
1.2 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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% In some versions of the compiler, this results in a compiler abort.
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% The problem is that when q and r are inlined in p, and the switch in r
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% is pushed into the disjunction in q, the alternative for a is rightly noted
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% as not being able to succeed, but the fail goal inserted after X=a has the
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% determinism erroneous instead of fail. Since fail is represented internally
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% as an empty disjunction, this violates an invariant required by the code
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% generator (that every det disjunction must have an alternative that always
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% succeeds).
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:- module fail_detism.
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:- interface.
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:- import_module io.
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:- import_module string.
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:- pred main(io::di, io::uo) is cc_multi.
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:- implementation.
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main(!IO) :-
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p(X),
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io.write_string(X, !IO),
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io.write_string("\n", !IO).
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:- pred p(string::out) is cc_multi.
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p(X1) :-
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( if q(X), r(X) then
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X1 = X
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else
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X1 = "none"
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).
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:- pred q(string::out) is multi.
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q("a").
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q("b").
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q("c").
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:- pred r(string::in) is semidet.
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r("b").
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r("c").
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