Merge pull request #172 from karwa/removespecific
[Overlay/Queue]: Allow setting an optional value in setSpecific
diff --git a/src/swift/Queue.swift b/src/swift/Queue.swift
index 9075e97..1808f9b 100644
--- a/src/swift/Queue.swift
+++ b/src/swift/Queue.swift
@@ -324,10 +324,10 @@
return nil
}
- public func setSpecific<T>(key: DispatchSpecificKey<T>, value: T) {
- let v = _DispatchSpecificValue(value: value)
+ public func setSpecific<T>(key: DispatchSpecificKey<T>, value: T?) {
let k = Unmanaged.passUnretained(key).toOpaque()
- let p = Unmanaged.passRetained(v).toOpaque()
+ let v = value.flatMap { _DispatchSpecificValue(value: $0) }
+ let p = v.flatMap { Unmanaged.passRetained($0).toOpaque() }
dispatch_queue_set_specific(self.__wrapped, k, p, _destructDispatchSpecificValue)
}
}
