Function

protocol_addMethodDescription(_:_:_:_:_:)

Adds a method to a protocol.

Declaration

func protocol_addMethodDescription(_ proto: Protocol!, _ name: Selector!, _ types: UnsafePointer<Int8>!, _ isRequiredMethod: Bool, _ isInstanceMethod: Bool)

Parameters

proto

The protocol you want to add a method to.

name

The name of the method you want to add.

types

A C string representing the signature of the method you want to add.

isRequiredMethod

A Boolean indicating whether the method is a required method of the proto protocol. If true, the method is a required method; if false, the method is an optional method.

isInstanceMethod

A Boolean indicating whether the method is an instance method. If true, the method is an instance method; if false, the method is a class method.

Discussion

To add a method to a protocol using this function, the protocol must be under construction. That is, you must add any methods to proto before you register it with the Objective-C runtime (via the objc_registerProtocol(_:) function).