Jiří Činčura
C# 9 Source Generators - let the machine do the programming
#1about 2 minutes
What are C# source generators and how they work
Source generators are a metaprogramming feature that adds new source code to your project during the compilation phase.
#2about 6 minutes
Exploring common use cases for source generators
Source generators are ideal for replacing reflection, creating high-performance parsers, generating strongly-typed APIs, and producing AOT-friendly code.
#3about 3 minutes
Understanding the limitations and capabilities of generators
Source generators can only add new code, not modify existing code, and they run in a non-deterministic order but can produce compiler diagnostics.
#4about 6 minutes
Demo: Building a simple hello world generator
A step-by-step walkthrough shows how to create a basic source generator that adds a static class and method to the compilation.
#5about 7 minutes
Demo: Generating a C# class from a CSV file
This demonstration shows how to read an external file during compilation and dynamically generate a C# class based on its contents.
#6about 10 minutes
Demo: Automating the INotifyPropertyChanged pattern
Learn how to use attributes and a syntax receiver to automatically generate the boilerplate code for the INotifyPropertyChanged interface.
#7about 6 minutes
Demo: Creating a high-performance custom serializer
This example demonstrates building a source generator that creates a fast, custom serialization method for a class marked with an attribute.
#8about 4 minutes
Managing dependencies and producing compiler diagnostics
Understand the two types of dependencies for source generators and learn how to report custom warnings or errors back to the developer.
#9about 2 minutes
Summary and key takeaways for source generators
Source generators are a powerful tool for library authors to reduce boilerplate, improve performance, and create better developer experiences.
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