CClosureProtocol

public protocol CClosureProtocol

The CClosureProtocol protocol exposes the methods and properties of an underlying GCClosure instance. The default implementation of these can be found in the protocol extension below. For a concrete class that implements these methods and properties, see CClosure. Alternatively, use CClosureRef as a lighweight, unowned reference if you already have an instance you just want to use.

A GCClosure is a specialization of GClosure for C function callbacks.

  • ptr

    Untyped pointer to the underlying GCClosure instance.

    Declaration

    Swift

    var ptr: UnsafeMutableRawPointer! { get }
  • _ptr Default implementation

    Typed pointer to the underlying GCClosure instance.

    Default Implementation

    Return the stored, untyped pointer as a typed pointer to the GCClosure instance.

    Declaration

    Swift

    var _ptr: UnsafeMutablePointer<GCClosure>! { get }

CClosure Record: CClosureProtocol extension (methods and fields)

  • closure Extension method

    the GClosure

    Declaration

    Swift

    @inlinable
    var closure: GClosure { get set }
  • callback Extension method

    the callback function

    Declaration

    Swift

    @inlinable
    var callback: gpointer! { get set }