RVS_WeakObjectReference

public struct RVS_WeakObjectReference<T> : Equatable, Hashable where T : AnyObject

This allows us to maintain collections of weak references.

USAGE:

Create instances of RVS_WeakObjectReference, with the values being the objects that you want to aggregate weakly. Aggregate these instances.

Each instance keeps a hash of the original object, even if that object is released, so we can use these as hashable keys or set members.

Note

Remember to access the RVS_WeakObjectReference.value property of each instance, instead of the instance, itself. The value will always be an optional, and may be nil.

Inspired by this SO answer

  • Main Initializer

    Declaration

    Swift

    public init(value inValue: T)

    Parameters

    value

    The object reference.

  • Initializer (No parameter name).

    Declaration

    Swift

    public init(_ inValue: T)

    Parameters

    inValue

    The object reference.

  • A read-only public accessor of the stored value (may be nil, if the object was deallocated).

    Declaration

    Swift

    public var value: T? { get }

  • A read-only public accessor of the stored hash value. This will always be available.

    Declaration

    Swift

    public var hashValue: Int { get }

  • Hashable Conformance

    Declaration

    Swift

    public func hash(into inoutHasher: inout Hasher)

    Parameters

    into

    The hasher to receive the hashed key.