optional "function" keyword

Russell Leggett russell.leggett at gmail.com
Wed Mar 7 14:06:04 PST 2012

On Wed, Mar 7, 2012 at 4:56 PM, Isaac Schlueter <i at izs.me> wrote:

> This might be a dumb question: TCP = "this-context preservation"?
> (Sorry, my brain has that acronym hard-linked to "Transport Control
> Protocol" and I keep getting confused.)
>  TCP = Tennent's Correspondence Principle

Yehuda Katz has a great explanation here:

tl;dr; It means that among other things, a return from the block would
actually return from the outer function, not just the anonymous function.
It lets you create stronger control abstractions.

- Russ
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