Extending GHCi

Ian Lynagh ian at well-typed.com
Thu Dec 6 19:20:13 CET 2012

On Tue, Dec 04, 2012 at 04:23:02PM +0100, Dennis Felsing wrote:
> Is there a way to extend GHCi without copying some of its source code?

Someone was looking at moving the ghci code into a library, which may
mean you need to copy less code, at least. I'm not sure what the status
of that is, though.

> Is there a chance of having these
> features flow back into mainline GHCi once they are properly implemented?

Sure, providing the complexity is not disproportionately high for the


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