Re: Eval, tail calls, (current-module), and backward compatibility

[Andy Wingo]

On Tue 17 Jan 2012 22:02, Mark H Weaver <address@hidden> writes:

> Therefore, the R5RS leaves no possible way for a complaint `eval' to
> restore the previous value of (current-module) after evaluation.
> Indeed, this is prohibited at a semantic level.

FWIW, Racket circumvents this problem nicely, with what they call
"continuation marks".  We might be able to reuse their strategy in our
with-fluids implementation.

Andy
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