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Determine if class has method/property
| Determine if class has method/property [message #44436] |
Mon, 13 June 2005 14:00 |
Michael Wallace
Messages: 409
Registered: December 2003
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Senior Member |
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Is is possible to dynamically determine if a given class has a certain
method defined? Similarly, is it possible to determine if a class has a
certain property defined?
I'm attempting to be a good programmer and validate some of my input and
displaying nice error message rather than just handing it off to IDL and
letting IDL return a nice cryptic (at times) message. It turns out that
my code is filling up with a bunch of OBJ_ISA statements because I have
to check each class that could be used. While these classes all have
the same methods defined, those methods are not present in their
superclass, so I can't just do a simple check to see if a given class is
an instance of the superclass. I can't change the superclass so my
options are either to write my own specific OBJ_ISA functions that do
all the checking for me or determine if the class in question has a
certain method defined before I try to use it. I'm just wondering if
the latter is possible before I go off writing my specific versions of
OBJ_ISA.
-Mike
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