Protocols

Protocols remind me of extensions in the Java programming language. They can be thought of as a certificate. To define a protocol it is similar to how you would define a structure, class and enumeration. A protocol can be used to define certain methods, properties, or other requirement that suits a particular task or piece of functionality.

Defining a protocol:

• protocol MyProtocol { // Define requirements }

Adopting the protocol:

• struct MyStruct: MyProtocol { }
• class MyClass: MyProtocol { }

In the example below it has a superclass, and you must list the super class name before any protocols it adopts.

• class MyClass: Superclass, FirstProtocol, AnotherProtocol { // class definition goes here }