On 4 July 2011 16:11, Alessio Stalla alessiostalla@gmail.com wrote:
On Mon, Jul 4, 2011 at 3:09 PM, Pascal J. Bourguignon pjb@informatimago.com wrote:
Nikodemus Siivola nikodemus@random-state.net writes:
On 4 July 2011 14:46, Stas Boukarev stassats@gmail.com wrote:
- They can't be used with APPLY or FUNCALL.
Actually, they can be used with FUNCALL.
(Otherwise, I echo pretty much everything that Stas said.)
clhs define-compiler-macro: "The consequences of writing a compiler macro definition for a function in the COMMON-LISP package are undefined;"
You, the user, can't, but Nikodemus, the implementer, can! ;)
There's a misunderstanding here. I didn't mean -- nor do I think Stas meant -- writing a compiler-macro for APPLY or FUNCALL, but rather having a compiler-macro take effect when the function in question is called using FUNCALL or APPLY:
(apply #'has-a-compiler-macro ...) ; compiler-macro will not fire
(funcall #'has-a-compiler-macro ...) ; compiler-macro should (if supported) fire
Cheers,
-- nikodemus