On Oct 9, 2:46 pm, Stuart Halloway <[EMAIL PROTECTED]> wrote:
> Sacha,
>
> You can to force evaluation of *indent* while preserving the lazyness
> of the code that uses *indent*:
>
> (with-indent
> (print *indent*)
> (let [ind *indent*]
> (lazy-cons ind (cons ind nil))))
>
> If this idiom is useful often enough there could be a macro for it. Or
> maybe there already is. :-) Rich?
>
There isn't yet, but yes, these do come up:
rebinding a var with an expression that uses its current value
capturing the current value of a var
(rebinding [*foo* (some-expr-that-uses *foo*)]
...)
(capture-binding [*foo*]
(use-of *foo* here is a snapshot))
Rich
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