[Haskell-cafe] I/O without monads, using an event loop

[Jake Mcarthur]

On May 30, 2008, at 9:09 AM, Robin Green wrote:

> eventMain :: (Event, SystemState AppState) -> (Command, SystemState  
> AppState)

The first thing I would do with this type is probably wrap it up in a  
State monad so I don't have to keep track of the SystemState AppState  
stuff myself, which completely defeats the purpose. I don't think this  
really makes anything simpler at all.

Also see FRP for a perhaps more practical way of approaching IO as  
event streams.

- Jake
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