Re: AKClassHierarchy

[Gavin Kistner <gavin@...>]

On Feb 12, 2006, at 3:33 AM, PA wrote:
> Your problem is right there: 'super' cannot be a straight attribute  
> of your object for method dispatch purpose. It needs to be part of  
> your object context instead.

I see! You're declaring a local variable 'super' in order for it to  
be captured in the closure of the init method. Tricky.

Which yet again points to the fact that 'super' type methods can't be  
written using first-class functions in a way that allows them to be  
used and re-shared. Pity.

Hrm...unless I went crazy-stupid and used global variables and  
wrapper functions. Something like...

function AKClass.prototype:addMethod( inName, inFunc )
	local theClass = self.class
	return function( ... )
		_super = theClass.superclass
		_methodName = inName
		return inFunc( unpack( arg ) )
	end
end

function AKObject.prototype:super( ... )
	local theSuperMethod = _super[ _methodName ]
	if theSuperMethod then
		return theSuperMethod( unpack( arg ) )
	end
end

Whee.... :)

Thanks for the discussion.

--
"When I am working on a problem I never think about beauty. I only  
think about how to solve the problem. But when I have finished, if  
the solution is not beautiful, I know it is wrong."
- R. Buckminster Fuller