Re: Mutability
Re: Mutability
- Subject: Re: Mutability
- From: jgo <email@hidden>
- Date: Sun, 25 Nov 2001 12:36:50 -0800
>
"Josh Braun" <email@hidden> 2001-11-21 09:27:23 -0800
>
"... give me a instance that conforms to the interface of type X (so
>
that I know the contract between X and its clients); I'll ask
>
it to do something for me, and then its behavior can vary
>
according to what it actually is "
It's that "conforms to the interface of type X" that is the
unreliable assumption, and that is what is being indirectly
tested when the isKindOf is used, and, as I understand it,
delegates have finer testing of whether a method exists/message
is valid for a particular object.
"The earlier in life you accustome yourself to consider objects with attention,
the easier will your progress be, & more sure & successful your enterprizes.
What a harvest of true scenes through which you pass if you are not wanting
in your assiduity & endeavours." --- Abigail Adams 1781-01-21 to her son
John Quincy Adams (quoted in William J. Bennett 1997 _The Spirit of America_
pg 223)
John G. Otto, Eagle Scout, Knight, Cybernetic Praxeologist
Existence, Consciousness, Identity, Life, Liberty, Property, Privacy, Justice