Migrating to Swift from Flash and ActionScript

© Radoslava Leseva Adams and Hristo Lesev 2016

Radoslava Leseva Adams and Hristo Lesev, Migrating to Swift from Flash and ActionScript, 10.1007/978-1-4842-1666-8_21

21. Object-Oriented Programming Topics

Radoslava Leseva Adams¹  and Hristo Lesev²

(1)London, UK

(2)Kazanlak, Bulgaria

In this chapter we will go over the object-oriented side of Swift. Having experience with ActionScript, you are already familiar with the object-oriented programming (OOP) paradigm. It treats a piece of software as a system, which is broken down into objects. Each object is responsible for a part of the system and looks after its own state.

Swift uses four main OOP entities:

• Classes

• Structures

• Enumerations

• Protocols

Each of these entities defines a type (classes, structures, ...