> The following code crashes: > > class Demo { > var value = 0 > lazy var increment: (Int) -> Void = { [unowned self] by in > self.value += by > print(self.value) > } > } > > Demo().increment(3) > error: Playground execution aborted: error: Execution was interrupted, > reason: EXC_BREAKPOINT (code=EXC_I386_BPT, subcode=0x0).
value is not a static/class variable. Without an instance of Demo it does not exist. This seems to work. class Demo { static var value = 0 lazy var increment: (Int) -> Void = { [unowned self] by in value += by print(value) } } _______________________________________________ swift-users mailing list swift-users@swift.org https://lists.swift.org/mailman/listinfo/swift-users