Changes between Version 9 and Version 10 of DefaultSuperclassInstances


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Timestamp:
Mar 10, 2011 6:30:39 PM (4 years ago)
Author:
simonpj
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  • DefaultSuperclassInstances

    v9 v10  
    112112Default superclass instances are implemented in the [http://personal.cis.strath.ac.uk/~conor/pub/she/superclass.html Strathclyde Haskell Enhancement]. They should enable some tidying of the library, with relatively few tears. Moreover, they should allow us to deepen type class hierarchies as we learn. Retaining backward compatibility in relative silence is the motivation for an opt-in default. 
    113113 
     114== Discussion == 
     115 
    114116Oleg and others note: just because you can make default instances, they are not always the instances you want. A key example is 
    115117{{{