On 06/06/2005, at 3:47 PM, Cédric Paternotte wrote:
Manuel Chakravarty and I also wrote a paper titled "Interfacing Haskell to Object-Oriented Languages" that you might find useful:
I've been reading it and from what I understood the technique you've come up with is used to model foreign OO language hierarchies so that Haskell can interface with them. My question is can you use it to code in Haskell in a OO way or is it just meant to provide bridges to these foreign OO objects ?
I don't think there's any real barrier to coding Haskell in an OO way, though my personal motivation for the paper was really to use it as a primitive bridging layer, and build a more functional interface on top of it. wxHaskell is a good example of this: it provides a more Haskell-like interface on top of a basic layer to wxWidgets via a layer named wxCore. Note that Mocha (which is discussed in the paper) has been succeeded by HOC: http://hoc.sf.net/, although that's probably of serious interest to you if you have a Mac.
I noticed most examples in the paper were related to the matters of interfacing. Or is it more than that ? Could you, for instance, craft a version of, say, the Shapes example with this approach ?
You could definitely craft up a Shapes example with the interfaces presented in the paper; if you think of an OO library that exports Shapes as a public API, then making an interface to this library vs crafting the Shapes example is the same thing. -- % Andre Pang : trust.in.love.to.save http://www.algorithm.com.au/