> This [ ... ] is not a block closure and the "extend" is more like a
> keyword to indicate this special construct.
"like"? Is it a reserved keyword? Does that mean you can't define
a method called `extend`?
What about the case of "C1 :subclass C2 [...]", is "subclass:" also
a reserved keyword? Does it also prevent using method called
`:subclass`?
What about uses of `extend` or `subclass:` elsewhere than at top-level?
Also within such a "set of methods", I see two different method
definitions:
<method-selector> [<method-body>]
and
<class> class >> <method-selector> [<method-body>]
what happens if <class> is another class than the one for which this
block is defining methods?
why do we need both the `class` and the `>>` keywords to define those
class methods?
Are there other possible valid elements than those two?
Where is this documented (other than by showing examples)?
Stefan
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