byte-compiling within lexical-let
didier at xemacs.org
Fri Jun 10 06:52:01 EDT 2011
byte-compiling an upward funarg situation within a lexical-let is
(funcall (lexical-let ((a 42)) (lambda () a))) => 42
(funcall (lexical-let ((a 42)) (byte-compile (lambda () a)))) => 42
Okay, modulo a compile-log warning:
** Passing a quoted lambda (arg 1) to #'apply, forcing function quoting
After that, there are more contrived situations where it completely
stops working, as in cases where you need to partially evaluate the
(funcall (lexical-let ((a 42)) (byte-compile (eval '(lambda () a)))))
=> [bad lexical ref]
This is simplified, but think `(lambda () ,foo stuff a).
In general, the problem occurs when you can't control the time at which
cl-macroexpand-all performs. In such situations, the lexically let
symbols translation may miss some cases occuring in already
I can't quite figure out a way around this right now. Any ideas ?
Resistance is futile. You will be jazzimilated.
Scientific site: http://www.lrde.epita.fr/~didier
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