[swift-evolution] [Proposal] Type safe NSPredicate
Jerome ALVES
j.alves at me.com
Wed Apr 27 08:32:44 CDT 2016
Hi everyone,
I think we all agree that #selector(...) and #keyPath(...) are great to write safe Swift code when interoperating with these Objective-C patterns.
How complicated would it be to have a similar functionality to write type safe NSPredicates ?
class Test {
var value: Int = 0
}
let test = Test()
let myPredicate = #predicate(myValue == 3)
myPredicate.evaluateWithObject(test) // => false
test.value = 3
myPredicate.evaluateWithObject(test) // => true
Regards,
Jérôme Alves
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