Andrew Appleyard wrote:
On 26/04/2007, at 12:12 am, Bulat Ziganshin wrote:
Simon Marlow recently wrote paper about handling dynamic exceptions -
for me it seems that he described general system to mimic OOP in Haskell
I found the paper (titled 'An Extensible Dynamically-Typed Hierarchy of
Exceptions'). The system described is not a complete OO mapping (it
doesn't deal with method overloading, for example) however because it is
a recent paper and the mapping is quite lightweight it could be useful
to me.
The best reference I know of for how to do OO in Haskell is the Kiselyov/Lämmel
OOHaskell paper: http://homepages.cwi.nl/~ralf/OOHaskell/. Quite often you
don't need the full range of OO functionality to implement a particular
abstraction, and in that case you can pick from the menu of techniques described
in that paper. Extensible exceptions is one particular example of an OO-like
abstraction.
Cheers,
Simon
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