Update of /project/movitz/cvsroot/movitz/losp/muerte In directory common-lisp.net:/tmp/cvs-serv13377

Modified Files: basic-macros.lisp Log Message: Added macro unbound-protect.

Date: Mon May 2 23:33:30 2005 Author: ffjeld

Index: movitz/losp/muerte/basic-macros.lisp diff -u movitz/losp/muerte/basic-macros.lisp:1.58 movitz/losp/muerte/basic-macros.lisp:1.59 --- movitz/losp/muerte/basic-macros.lisp:1.58 Wed Apr 27 01:45:00 2005 +++ movitz/losp/muerte/basic-macros.lisp Mon May 2 23:33:29 2005 @@ -9,7 +9,7 @@ ;;;; Created at: Wed Nov 8 18:44:57 2000 ;;;; Distribution: See the accompanying file COPYING. ;;;; -;;;; $Id: basic-macros.lisp,v 1.58 2005/04/26 23:45:00 ffjeld Exp $ +;;;; $Id: basic-macros.lisp,v 1.59 2005/05/02 21:33:29 ffjeld Exp $ ;;;; ;;;;------------------------------------------------------------------

@@ -688,6 +688,26 @@ (0 nil) (1 `(cons ,(car elements) nil)) (t form))) + + +(defmacro unbound-protect (x &optional error-continuation &environment env) + (cond + ((movitz:movitz-constantp x env) + `(values ,x)) + (movitz::*compiler-use-into-unbound-protocol* + (let ((unbound-continue (gensym "unbound-continue-"))) + `(with-inline-assembly (:returns :register) + (:compile-form (:result-mode :register) ,x) + (:cmpl -1 (:result-register)) + (:jo '(:sub-program (unbound) + (:compile-form (:result-mode :eax) ,error-continuation) + (:jmp ',unbound-continue))) + ,unbound-continue))) + (t (let ((var (gensym))) + `(let ((,var ,x)) + (if (not (eq ,var (load-global-constant new-unbound-value))) + ,var + ,error-continuation))))))

#+ignore (define-compiler-macro apply (&whole form function &rest args)