From: Alan Grover <awgrover@mail.msen.com>
Subject: Re: Generic-methods from multiple modules should merge
Date: Tue, 10 Jan 2006 20:20:40 -0500 [thread overview]
Message-ID: <43C45D68.9070708@mail.msen.com> (raw)
In-Reply-To: <87d5izu49p.fsf@zagadka.de>
Yes, lovely section in the NEWS outlining the exact problem, and the
behavior I expect. Though I think that merge-generics should be the
default behavior.
I suppose I'll have to to try to upgrade.
Marius Vollmer wrote:
> Alan Grover <awgrover@mail.msen.com> 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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prev parent reply other threads:[~2006-01-11 1:20 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-10 19:36 Generic-methods from multiple modules should merge Alan Grover
2006-01-10 22:06 ` Marius Vollmer
2006-01-11 1:20 ` Alan Grover [this message]
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