[Haskell-cafe] Why is toRational a method of Real?
malcolm.wallace at me.com
Thu Aug 5 08:47:59 EDT 2010
> It's sad because the class alias proposal was dropped from Haskell'
> two years ago, isn't it ?
Haskell' is an ongoing process of language revision. ClassAliases did not get into Haskell 2010, but it could certainly be adopted in 2011 or 2012, if there were consensus support for it. Usually, proposals also need to have been implemented in practice in at least one compiler, to demonstrate their feasibility (that compiler need not always be ghc :-).
Here is the haskell' ticket for ClassAliases:
And John Meacham's detailed proposal:
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