A declaration cannot be both 'final' and 'dynamic' error in Swift 1.2 -


the declaration of value below

import foundation  class aaa: nsobject {     func test2() {         self.dynamictype     } } extension aaa {     static let value    =   111 }

causes following compilation error

a declaration cannot both 'final' , 'dynamic'

why happen, , how can deal this?

i using swift 1.2 (the version shipped within xcode 6.3.1 6d1002)

this issue arises because swift trying generate dynamic accessor static property obj-c compatibility, since class inherits nsobject.

if project in swift only, rather using var accessor can avoid issue via @nonobjc attribute in swift 2.0:

import foundation  class aaa: nsobject {} extension aaa {     @nonobjc static let value = 111 }

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