[Haskell-cafe] existential types

Henning Thielemann lemming at henning-thielemann.de
Wed Feb 13 07:51:20 EST 2008

On Wed, 13 Feb 2008, Simeon Mattes wrote:

> I have found that ghc has adopted the existential data constructors. Because it
> was first time I have heard this term I have found some articles about it. The
> less complex for me was the following explanation
> data Worker x y = Worker {buffer :: b, input :: x, output :: y}

Seems to be the example which is also presented here:

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