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World Congress 2023 • Sep 27, 2023

Create DSL (Domain Specific Language) on top of Swift

Milan Todorović

Why build a custom compiler from scratch when you can leverage Swift? Discover how native result builders let you craft elegant, declarative DSLs for complex business logic.

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#1 about 3 min

Understanding domain specific languages in software development

A domain specific language operates at a high level of abstraction to optimize solutions for highly targeted problem spaces.

#2 about 2 min

Classifying domain specific languages as external or internal

Developers can create new syntax from scratch or utilize an existing host language to build internal solutions.

#3 about 2 min

Choosing domain specific languages over artificial intelligence models

While large language models generate answers probabilistically, domain languages provide absolute reliability and focused execution for complex systems.

#4 about 2 min

Applying best practices to create intuitive custom languages

Mimicking natural English patterns in code syntax creates closer alignment and easier collaboration between developers and domain experts.

#5 about 2 min

Identifying common domain specific languages in everyday development

Many widely adopted technologies like template markups, shell scripts, and query systems operate entirely as specialized domain tools.

#6 about 5 min

Analyzing SwiftUI as an internal domain specific language

Apple's user interface framework translates structural elements and visual modifiers into equivalent standard nouns and verbs within code blocks.

#7 about 5 min

Exploring core Swift syntax features that enable language creation

Advanced capabilities like property wrappers and trailing closures provide the foundational architecture necessary to construct expressive syntactic tools.

#8 about 4 min

Implementing foundational result builders and drawing protocols in Xcode

Structuring custom types and commands within result builders forms the underlying logic for a personalized drawing language application.

#9 about 5 min

Executing custom drawing language syntax alongside native Swift loops

Embedding native flow controls organically into constructed block elements renders processed outputs cleanly inside standard execution environments.

#10 about 3 min

Answering audience questions regarding version control and interface tracking

Relying on the host ecosystem allows custom languages to inherit mature native tooling packages without overhead engineering.

Matching moments

6:27 min

Enhancing developer experience with SDK discovery and DSLs

Maarten Balliauw · LIVE

2:01 min

Introduction to domain specific languages and their applications

Irina Artemeva · WWC 2023

4:37 min

Business drivers for designing domain specific languages

Miro Spönemann · WWC 2022

1:36 min

Introduction to programming language internal workings

Aleksandra Sikora · WWC 2023

3:53 min

Implementing language model sessions using Swift asynchronous coding

MIlan Todorović MIlan Todorović · WWC 2025

2:08 min

Reviewing Xcode implementations and Vision framework documentation reference resources

Milan Todorovic · WWC 2021

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