[Haskell-cafe] Re: How to check object's identity?

Achim Schneider barsoap at web.de
Sun Jan 4 23:39:28 EST 2009

Lauri Alanko <la at iki.fi> wrote:

> Personally, I find the idea appealing (and have implemented the Refs
> in the paper with IORefs and unsafePerformIO), because really, even
> currently a programmer has to care about sharing since it can have
> radical implications for performance and memory usage. Making it
> observable in the program would just mean acknowledging the fact that
> in real-world programming, you can't _really_ replace a variable with
> its definition without changing its behavior in important ways.
+1 realism.

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