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fdd141bf77
tests/invalid/*.{m,err_exp}:
tests/misc_tests/*.m:
tests/mmc_make/*.m:
tests/par_conj/*.m:
tests/purity/*.m:
tests/stm/*.m:
tests/string_format/*.m:
tests/structure_reuse/*.m:
tests/submodules/*.m:
tests/tabling/*.m:
tests/term/*.m:
tests/trailing/*.m:
tests/typeclasses/*.m:
tests/valid/*.m:
tests/warnings/*.{m,exp}:
Make these tests use four-space indentation, and ensure that
each module is imported on its own line. (I intend to use the latter
to figure out which subdirectories' tests can be executed in parallel.)
These changes usually move code to different lines. For the tests
that check compiler error messages, expect the new line numbers.
browser/cterm.m:
browser/tree234_cc.m:
Import only one module per line.
tests/hard_coded/boyer.m:
Fix something I missed.
40 lines
1.0 KiB
Mathematica
40 lines
1.0 KiB
Mathematica
%---------------------------------------------------------------------------%
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% vim: ts=4 sw=4 et ft=mercury
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%---------------------------------------------------------------------------%
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:- module mpj3.
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:- interface.
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:- typeclass coll(E, C) <= (C -> E) where [
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func i(E, C) = C
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].
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:- type intlist
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---> []
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; [int | intlist].
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:- type stringlist
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---> []
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; [string | stringlist].
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:- func g(intlist) = intlist.
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:- implementation.
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% Error: overlapping instances:
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%
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:- instance coll(int, intlist) where [ (i(N, L) = [N | L]) ].
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:- instance coll(string, stringlist) where [ (i(S, L) = [S | L]) ].
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:- instance coll(string, intlist) where [ (i(_S, L) = [1 | L]) ].
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% Error: conflicting types for args 1 and 2, both of which are
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% determined by the type of L.
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%
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g(L) = f(1, "foo", L).
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% This probably should be an error, or at least a warning, since the
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% constraints could be tighter.
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%
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:- func f(A, B, C) = C <= (coll(A, C), coll(B, C)).
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f(A, B, C) = i(A, i(B, C)).
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