Changes between Version 2 and Version 3 of ClassMethodTypes


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Timestamp:
Jan 27, 2006 11:42:46 AM (10 years ago)
Author:
ross@…
Comment:

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  • ClassMethodTypes

    v2 v3  
    11= Class Method Types =
    22
    3 '''[search:?q="ClassMethodTypes"&ticket=on Ticket(s)]'''
     3== Brief Explanation ==
    44
    55In [http://www.haskell.org/onlinereport/decls.html#class-decls Haskell 98, s4.3.1], the signatures of methods in a class may contain constraints, but these constraints must not mention the argument of the type class. The following is illegal:
     
    1212However this restriction is not implemented by Hugs, following a suggestion of Mark Jones in
    1313[http://www.cse.ogi.edu/~mpj/thih/ Typing Haskell in Haskell], and can be turned off in GHC with `-fglasgow-exts`.
     14
     15== Tickets ==
     16[[TicketQuery(description~=ClassMethodTypes)]]