Comments (2)
This is something I'll consider for middleclass 3.0 - I certainly have already given it some thought.
from middleclass.
At the end I decided not to include this by default in middleclass. But you can use this mixin (waring, untested):
local HasChildren = {
included = function(aClass)
local old_subclass = aClass.subclass
aClass.static.subclass = function(...)
local child = old_subclass(...)
aClass.static.children = aClass.static.children or {}
aClass.static.children[#aClass.static.children + 1] = child
return child
end
end
}
Usage:
local MyClass = class('MyClass')
MyClass:include(HasChildren)
local MySubclass = class('MySubclass', MyClass)
-- now MyClass.children exists and contains the children of the class. For example, this is true
assert(MyClass.children[1] == MySubclass)
If you want all classes to have this behavior, you can make Object
include the HasChildren
mixin.
Closing down this. Regards.
from middleclass.
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from middleclass.