[Python-Dev] Metaclass insanity - another use case
Tue, 5 Nov 2002 18:47:51 -0500
On Wed, Nov 06, 2002, Greg Ewing wrote:
> "Phillip J. Eby" <email@example.com>:
>> As for *why* I had inner classes, the following might be a good example:
>> class ModelElement(Element):
>> class isSpecification(model.Field):
>> isRequired = 1
>> qualifiedName = 'Foundation.Core.ModelElement.isSpecification'
>> _XMINames = ('Foundation.Core.ModelElement.isSpecification',)
>> name = 'isSpecification'
>> referencedType = 'Boolean'
> I'm not sure if it would be quite what Phillip needs, but
> I've been wondering recently whether Python could benefit
> from having an "instance" statement which does for instances
> what the "class" statement does for classes.
> The idea is you'd be able to say something like
> instance isSpecification(model.Field):
> isRequired = 1
> qualifiedName = 'Foundation.Core.ModelElement.isSpecification'
> and it would be equivalent to
> isSpecification = model.Field(isRequired = 1,
> qualifiedName = 'Foundation.Core.ModelElement.isSpecification')
Yeah, but that doesn't gain you all that much over
isSpecification = model.Field(
isRequired = 1,
qualifiedName = 'Foundation.Core.ModelElement.isSpecification'
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