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5.1.7 methodList

Every class has a methodList feature that is a list of all the method names that are used outside the class. This is used by the active object wrapper, and is safe since nothing but the active object wrapper ever talks directly to the object anyways. Note that the methodList feature should not include upgrade, as this is added in by the active object wrapper.

All objects are dynamically upgradeable a la A dynamically-extensible server1

Footnotes

[1] Note that this also makes them stationary, which may cause problems later (although I don't think so) and means that what's actually being passed around are procedures, not objects. For more information, see See The Active Object Wrapper.