Qustion about validate: has:

[keith hodges]

I found this code but I am wondering why not use #respondsTo:

Keith

====

validate: className has: selector

    (Smalltalk hasClassNamed: className) ifFalse: [ "No validation 
needed" ^ self ].
    ((Smalltalk at: className) basicNew perform: selector)
        ifFalse:
            [ MaObjectSerializationUserError signal: 'Need to implement 
', selector, ' on ', className ]



		
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