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Re: Generic-methods from multiple modules should merge

From: Marius Vollmer
Subject: Re: Generic-methods from multiple modules should merge
Date: Wed, 11 Jan 2006 00:06:26 +0200
User-agent: Gnus/5.11 (Gnus v5.11) Emacs/22.0.50 (gnu/linux)

Alan Grover <address@hidden> writes:

> I think the right thing is to have the module system "merge" the generic
> methods. Thus, when importing a module, if the module's symbol is bound
> to a generic-method, and if the symbol is already bound to a
> generic-method (in the "using" module), add the methods to the existing
> generic-method. Then, all of the methods are visible under the generic name.

You can do this by using a 'duplicates' handler when defining the
importing module.  The 'duplicates' handler determines what is going
to be done to bindings with the same name.  The 'merge-generics'
handler is probably what you are looking for.  See NEWS in CVS HEAD.

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