[m-dev.] class syntax (brief note)
Michael Day
mikeday at corplink.com.au
Tue Nov 2 21:09:31 AEDT 1999
Something I forgot to mention, is that it's unfortunate really that all
declarations have to start with :-, as it feels like it could be used
quite naturally in several circumstances. For instance:
:- typeclass stringable(T) :-
[
func to_string(T) = string
].
okay so that uses :- twice, but ignoring the first one it seems to read
fairly well... "T satisfies stringable *if* it has this list of methods".
Ah well. There is no doubt an obvious semantic reason for not doing things
this way that I haven't considered, but to me at least it doesn't seem any
worse than using "where".
(repeat above diatribe regarding :- instance in a similar manner :)
Michael
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