SelfDestructingCompletion Class Reference

public class SelfDestructingCompletion<Param>

A class that wraps a completion block and makes sure it can only be completed once.

To be sure that the completion block is not called by someone else, you should name the variable holding the instance of this class with the same name of the completion block that was passed as a parameters.

Main usecase is for completing immediately something that is cancelled, without the need to add more logic to avoid duplicate call of the completion.

Completion
The underlying completion block type.
Declaration
Swift

public typealias Completion = (Param) -> Void


                    
                    
                    init(completion:)

Creates a new instance wrapping the given completion block.

Declaration

Swift

public init(completion: @escaping Completion)

Parameter	Description
`completion`	The block to invoke once when `complete(result:)` is called.

complete(result:)
Invokes the wrapped completion block with result and clears it so it cannot be called again.
Declaration
Swift

public func complete(result: Param)