SlideShare a Scribd company logo
1 of 54
Download to read offline
Protocol-Oriented
Programming
Зимин Александр
iOS разработчик
UX дизайнер
Причины
3
4
Класс
4
• Инкапсуляция
Класс
4
• Инкапсуляция
• Уровни доступа
Класс
4
• Инкапсуляция
• Уровни доступа
• Абстракция
Класс
4
• Инкапсуляция
• Уровни доступа
• Абстракция
• Пространство имен
Класс
4
• Инкапсуляция
• Уровни доступа
• Абстракция
• Пространство имен
• Синтаксис
Класс
4
• Инкапсуляция
• Уровни доступа
• Абстракция
• Пространство имен
• Синтаксис
• Расширяемость
Класс
5
• Инкапсуляция
• Уровни доступа
• Абстракция
• Пространство имен
• Синтаксис
• Расширяемость
Тип
6
Именно класс
6
• Ссылки
Именно класс
6
• Ссылки
• Наследование
Именно класс
7
Аудиосистема
7
Аудиосистема
7
Аудиосистема
Эквалайзер
7
Аудиосистема
Музыка Телевизор
Эквалайзер
7
Аудиосистема
Музыка Телевизор
Эквалайзер
7
Аудиосистема
Музыка Телевизор
Эквалайзер
7
Аудиосистема
Музыка Телевизор
Эквалайзер
Неявная дележка одного объекта
7
Аудиосистема
Музыка Телевизор
Эквалайзер
Implicit data sharing
8
Наследование
8
• Один суперкласс
Наследование
8
• Один суперкласс
• Избирательность
Наследование
8
• Один суперкласс
• Избирательность
• Нагруженность
Наследование
8
• Один суперкласс
• Избирательность
• Нагруженность
• Неизменяемость
Наследование
8
• Один суперкласс
• Избирательность
• Нагруженность
• Неизменяемость
• Неясность
Наследование
9
9
class Compared {

func isEqualTo(other: Compared) -> Bool { fatalError("implements me!") }

}

9
class Compared {

func isEqualTo(other: Compared) -> Bool { fatalError("implements me!") }

}

class Text : Compared { var text: String = "" … }

9
class Compared {

func isEqualTo(other: Compared) -> Bool { fatalError("implements me!") }

}

class Text : Compared { var text: String = "" … }

class Number : Compared {

var value: Double = 0

override func isEqualTo(other: Compared) -> Bool {

return value == (other as! Number).value

}

}
10
class Compared {

func isEqualTo(other: Compared) -> Bool { fatalError("implements me!") }

}

class Text : Compared { var text: String = "" … }

class Number : Compared {

var value: Double = 0

override func isEqualTo(other: Compared) -> Bool {

return value == (other as! Number).value

}

}
Идея
11
12
Заменить классы
протоколами и структурами
13
Что это позволит
13
• Типы-значения
Что это позволит
13
• Типы-значения
• Статическую зависимость между типами
Что это позволит
13
• Типы-значения
• Статическую зависимость между типами
• Ретроактивность моделирования
Что это позволит
13
• Типы-значения
• Статическую зависимость между типами
• Ретроактивность моделирования
• Упрощение инициализаторов
Что это позволит
13
• Типы-значения
• Статическую зависимость между типами
• Ретроактивность моделирования
• Упрощение инициализаторов
• Внимание на том, что надо реализовать
Что это позволит
14
15
Когда использовать классы
15
Когда использовать классы
• Когда нет смысла копировать
15
Когда использовать классы
• Когда нет смысла копировать
• Привязка к событиям извне
15
Когда использовать классы
• Когда нет смысла копировать
• Привязка к событиям извне
• Записывающие устройства
15
Когда использовать классы
• Когда нет смысла копировать
• Привязка к событиям извне
• Записывающие устройства
• Фрейморк требует наследования
Ссылки
16
Ссылки
16
• https://bigonotetaking.wordpress.com/2015/07/17/swift-protocols-a-
strategy/ - стратегия по работе с протоколами
Ссылки
16
• https://bigonotetaking.wordpress.com/2015/07/17/swift-protocols-a-
strategy/ - стратегия по работе с протоколами
• http://www.infoq.com/news/2015/06/protocol-oriented-swift - Краткий
разбор лекции с WWDC 2015
Ссылки
16
• https://bigonotetaking.wordpress.com/2015/07/17/swift-protocols-a-
strategy/ - стратегия по работе с протоколами
• http://www.infoq.com/news/2015/06/protocol-oriented-swift - Краткий
разбор лекции с WWDC 2015
• http://www.raywenderlich.com/109156/introducing-protocol-oriented-
programming-in-swift-2 - пример от Ray Wenderlich
Ссылки
16
• https://bigonotetaking.wordpress.com/2015/07/17/swift-protocols-a-
strategy/ - стратегия по работе с протоколами
• http://www.infoq.com/news/2015/06/protocol-oriented-swift - Краткий
разбор лекции с WWDC 2015
• http://www.raywenderlich.com/109156/introducing-protocol-oriented-
programming-in-swift-2 - пример от Ray Wenderlich
• http://blog.metaobject.com/2015/06/protocol-oriented-programming-is-
object.html - небольшой разбор
Ссылки
16
• https://bigonotetaking.wordpress.com/2015/07/17/swift-protocols-a-
strategy/ - стратегия по работе с протоколами
• http://www.infoq.com/news/2015/06/protocol-oriented-swift - Краткий
разбор лекции с WWDC 2015
• http://www.raywenderlich.com/109156/introducing-protocol-oriented-
programming-in-swift-2 - пример от Ray Wenderlich
• http://blog.metaobject.com/2015/06/protocol-oriented-programming-is-
object.html - небольшой разбор
• http://vojtastavik.com/2015/07/29/protocolui-customizing-uikit-using-
protocols/ - интересный пример использования протоколов в UI
Спасибо за внимание

More Related Content

Featured

2024 State of Marketing Report – by Hubspot
2024 State of Marketing Report – by Hubspot2024 State of Marketing Report – by Hubspot
2024 State of Marketing Report – by HubspotMarius Sescu
 
Everything You Need To Know About ChatGPT
Everything You Need To Know About ChatGPTEverything You Need To Know About ChatGPT
Everything You Need To Know About ChatGPTExpeed Software
 
Product Design Trends in 2024 | Teenage Engineerings
Product Design Trends in 2024 | Teenage EngineeringsProduct Design Trends in 2024 | Teenage Engineerings
Product Design Trends in 2024 | Teenage EngineeringsPixeldarts
 
How Race, Age and Gender Shape Attitudes Towards Mental Health
How Race, Age and Gender Shape Attitudes Towards Mental HealthHow Race, Age and Gender Shape Attitudes Towards Mental Health
How Race, Age and Gender Shape Attitudes Towards Mental HealthThinkNow
 
AI Trends in Creative Operations 2024 by Artwork Flow.pdf
AI Trends in Creative Operations 2024 by Artwork Flow.pdfAI Trends in Creative Operations 2024 by Artwork Flow.pdf
AI Trends in Creative Operations 2024 by Artwork Flow.pdfmarketingartwork
 
PEPSICO Presentation to CAGNY Conference Feb 2024
PEPSICO Presentation to CAGNY Conference Feb 2024PEPSICO Presentation to CAGNY Conference Feb 2024
PEPSICO Presentation to CAGNY Conference Feb 2024Neil Kimberley
 
Content Methodology: A Best Practices Report (Webinar)
Content Methodology: A Best Practices Report (Webinar)Content Methodology: A Best Practices Report (Webinar)
Content Methodology: A Best Practices Report (Webinar)contently
 
How to Prepare For a Successful Job Search for 2024
How to Prepare For a Successful Job Search for 2024How to Prepare For a Successful Job Search for 2024
How to Prepare For a Successful Job Search for 2024Albert Qian
 
Social Media Marketing Trends 2024 // The Global Indie Insights
Social Media Marketing Trends 2024 // The Global Indie InsightsSocial Media Marketing Trends 2024 // The Global Indie Insights
Social Media Marketing Trends 2024 // The Global Indie InsightsKurio // The Social Media Age(ncy)
 
Trends In Paid Search: Navigating The Digital Landscape In 2024
Trends In Paid Search: Navigating The Digital Landscape In 2024Trends In Paid Search: Navigating The Digital Landscape In 2024
Trends In Paid Search: Navigating The Digital Landscape In 2024Search Engine Journal
 
5 Public speaking tips from TED - Visualized summary
5 Public speaking tips from TED - Visualized summary5 Public speaking tips from TED - Visualized summary
5 Public speaking tips from TED - Visualized summarySpeakerHub
 
ChatGPT and the Future of Work - Clark Boyd
ChatGPT and the Future of Work - Clark Boyd ChatGPT and the Future of Work - Clark Boyd
ChatGPT and the Future of Work - Clark Boyd Clark Boyd
 
Getting into the tech field. what next
Getting into the tech field. what next Getting into the tech field. what next
Getting into the tech field. what next Tessa Mero
 
Google's Just Not That Into You: Understanding Core Updates & Search Intent
Google's Just Not That Into You: Understanding Core Updates & Search IntentGoogle's Just Not That Into You: Understanding Core Updates & Search Intent
Google's Just Not That Into You: Understanding Core Updates & Search IntentLily Ray
 
Time Management & Productivity - Best Practices
Time Management & Productivity -  Best PracticesTime Management & Productivity -  Best Practices
Time Management & Productivity - Best PracticesVit Horky
 
The six step guide to practical project management
The six step guide to practical project managementThe six step guide to practical project management
The six step guide to practical project managementMindGenius
 
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...RachelPearson36
 

Featured (20)

2024 State of Marketing Report – by Hubspot
2024 State of Marketing Report – by Hubspot2024 State of Marketing Report – by Hubspot
2024 State of Marketing Report – by Hubspot
 
Everything You Need To Know About ChatGPT
Everything You Need To Know About ChatGPTEverything You Need To Know About ChatGPT
Everything You Need To Know About ChatGPT
 
Product Design Trends in 2024 | Teenage Engineerings
Product Design Trends in 2024 | Teenage EngineeringsProduct Design Trends in 2024 | Teenage Engineerings
Product Design Trends in 2024 | Teenage Engineerings
 
How Race, Age and Gender Shape Attitudes Towards Mental Health
How Race, Age and Gender Shape Attitudes Towards Mental HealthHow Race, Age and Gender Shape Attitudes Towards Mental Health
How Race, Age and Gender Shape Attitudes Towards Mental Health
 
AI Trends in Creative Operations 2024 by Artwork Flow.pdf
AI Trends in Creative Operations 2024 by Artwork Flow.pdfAI Trends in Creative Operations 2024 by Artwork Flow.pdf
AI Trends in Creative Operations 2024 by Artwork Flow.pdf
 
Skeleton Culture Code
Skeleton Culture CodeSkeleton Culture Code
Skeleton Culture Code
 
PEPSICO Presentation to CAGNY Conference Feb 2024
PEPSICO Presentation to CAGNY Conference Feb 2024PEPSICO Presentation to CAGNY Conference Feb 2024
PEPSICO Presentation to CAGNY Conference Feb 2024
 
Content Methodology: A Best Practices Report (Webinar)
Content Methodology: A Best Practices Report (Webinar)Content Methodology: A Best Practices Report (Webinar)
Content Methodology: A Best Practices Report (Webinar)
 
How to Prepare For a Successful Job Search for 2024
How to Prepare For a Successful Job Search for 2024How to Prepare For a Successful Job Search for 2024
How to Prepare For a Successful Job Search for 2024
 
Social Media Marketing Trends 2024 // The Global Indie Insights
Social Media Marketing Trends 2024 // The Global Indie InsightsSocial Media Marketing Trends 2024 // The Global Indie Insights
Social Media Marketing Trends 2024 // The Global Indie Insights
 
Trends In Paid Search: Navigating The Digital Landscape In 2024
Trends In Paid Search: Navigating The Digital Landscape In 2024Trends In Paid Search: Navigating The Digital Landscape In 2024
Trends In Paid Search: Navigating The Digital Landscape In 2024
 
5 Public speaking tips from TED - Visualized summary
5 Public speaking tips from TED - Visualized summary5 Public speaking tips from TED - Visualized summary
5 Public speaking tips from TED - Visualized summary
 
ChatGPT and the Future of Work - Clark Boyd
ChatGPT and the Future of Work - Clark Boyd ChatGPT and the Future of Work - Clark Boyd
ChatGPT and the Future of Work - Clark Boyd
 
Getting into the tech field. what next
Getting into the tech field. what next Getting into the tech field. what next
Getting into the tech field. what next
 
Google's Just Not That Into You: Understanding Core Updates & Search Intent
Google's Just Not That Into You: Understanding Core Updates & Search IntentGoogle's Just Not That Into You: Understanding Core Updates & Search Intent
Google's Just Not That Into You: Understanding Core Updates & Search Intent
 
How to have difficult conversations
How to have difficult conversations How to have difficult conversations
How to have difficult conversations
 
Introduction to Data Science
Introduction to Data ScienceIntroduction to Data Science
Introduction to Data Science
 
Time Management & Productivity - Best Practices
Time Management & Productivity -  Best PracticesTime Management & Productivity -  Best Practices
Time Management & Productivity - Best Practices
 
The six step guide to practical project management
The six step guide to practical project managementThe six step guide to practical project management
The six step guide to practical project management
 
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
 

Александр Зимин (Alexander Zimin) - Protocol-Oriented Programming