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

From: David Kastrup
Subject: Re: Eval, tail calls, (current-module), and backward compatibility
Date: Sat, 21 Jan 2012 16:59:06 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.92 (gnu/linux)

Mark H Weaver <address@hidden> writes:

> Ideally, I think that `eval' should set (current-module) during
> expansion, but _not_ during evaluation.  Then it can be properly tail
> recursive.  However, some code out there might depend on the existing
> behavior, so I guess we can't change this, at least not in 2.0.
> Bummer.

It just occured to me that the _only_ way of getting and setting
variables under a computed name (apart from using macros) is using
(module-set! (current-module) (compute a symbol))
since symbol-set! apparently has been deprecated.

Not sure what the implications of that are.

David Kastrup

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