Nils G�sche <ngo@cartan.de> wrote:
+---------------
| Barry Margolin <barmar@alum.mit.edu> writes:
| > Did you try (compile 'closure-1) first?  The REPL might not
| > automatically compile nested function definitions.
| 
| For some reason, LispWorks doesn't want to COMPILE interpreted
| closures.  Apparently, it doesn't have to, either:
| 
| # The consequences are undefined if the lexical environment
| # surrounding the function to be compiled contains any bindings other
| # than those for macros, symbol macros, or declarations.
+---------------

True, but you can fake that out if you really, really want a "naked"
compiled closure: simply wrap the lexical environment setting and
the target closure inside *another* closure, compile *that*, and
then FUNCALL it:

    > (funcall
	(compile nil
		 (lambda()
		   (let ((x 1))
		     (lambda () (incf x))))))
    ; Compiling LAMBDA NIL: 
    ; Compiling Top-Level Form: 

    #<Closure Over Function "LAMBDA NIL" {484EEE91}>
    > (funcall *)

    2
    > (funcall **)

    3
    > (funcall ***)

    4
    >


-Rob

-----
Rob Warnock			<rpw3@rpw3.org>
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