I just looked through the Key-Value Coding Programming Guide, and I’m wondering
what the prototypes are of the name-customized methods for your properties in
Swift. Since the KVC protocol is informal, getting the names and/or types
wrong doesn’t mean an error, but that your implementation is ignored and
default handling is done.
For instance:
//=====
func validateBody(ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>)
throws {
guard let newBody = ioValue.memory as? NSString else {
throw NSCocoaError.KeyValueValidationError
}
let errors = self.dynamicType.problemsValidatingBody(newBody as String)
if !errors.isEmpty {
throw errors.first!
}
// Else: do nothing
}
//=====
is this the correct signature to KVC-validate a property named “body” in Swift?
(Incidentally, is that a good implementation?)
—
Daryle Walker
Mac, Internet, and Video Game Junkie
darylew AT mac DOT com
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