Changes between Version 2 and Version 3 of DerivingInstances

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Timestamp:
04/14/08 18:11:29 (5 years ago)
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john@…
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  • DerivingInstances

    v2 v3  
    3333== Discussion == 
    3434 
     35http://www.haskell.org/ghc/dist/current/docs/users_guide/type-extensions.html#stand-alone-deriving describes an implementation of something very like this in GHC. 
     36 
    3537http://haskell.org/haskellwiki/GHC/Stand-alone_deriving_declarations contains a great discussion of some of these ideas. (NB. Section 3 is misleading: leaving the clauses out of an instance declaration ''does not'' leave all the methods undefined; rather it gives the default methods of the class). 
    3638