On Tue, 29 Jan 2013 15:07:19 +0100 Peter Enerccio <enerc...@gmail.com> wrote:
> Hello, > > I wanted to ask if it is possible to overwrite functions in common-lisp > package. > I know I can do it in c level, but I would rather do it in lisp level, if > it is possible. The part that allows to unlock/lock packages is implementation-dependent, but that can be done on ECL using the function EXT:PACKAGE-LOCK (the COMMON-LISP package is locked by default). That said, it's also possible, and portable, to override a COMMON-LISP package symbol in a specific package which USEs CL, like in the following example, overriding GENTEMP in FOO: (defpackage :foo (:use :cl)) (shadow 'gentemp :foo) (defun foo::gentemp (&rest args) (error "Call to deprecated function GENTEMP with arguments ~S" args)) (in-package :foo) (gentemp 4362642) Condition of type: SIMPLE-ERROR Call to deprecated function GENTEMP with arguments (4362642) -- Matt ------------------------------------------------------------------------------ Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. ON SALE this month only -- learn more at: http://p.sf.net/sfu/learnnow-d2d _______________________________________________ Ecls-list mailing list Ecls-list@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ecls-list
