Awesome Roslyn

Curated list of awesome Roslyn books, tutorials, open-source projects, analyzers, code fixes, refactorings, and source generators

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README

Curated list of Roslyn books, tutorials, open source projects, analyzers, code fixes, refactorings, and source generators.

Roslyn, officially named .NET Compiler Platform, is a set of open-source compilers and code analysis APIs for C# and Visual Basic .NET languages.

Books
Tutorials
Open Source Projects
Open Source Analyzers, Code Fixes, and Refactorings
Libraries and Frameworks for Testing Analyzers, Code Fixes, and Refactorings
Source Generators
Blog Posts and Articles
Talks

Books

Awesome books to give you a good start with Roslyn.

Roslyn Succinctly - Free e-book by Alessandro Del Sole and the perfect book to start with. Explains Roslyn APIs and afterward focuses on writing analyzers and refactorings.
.NET Development Using the Compiler API - Book by Jason Bock. Besides analyzers and refactorings, it also explains the scripting API and provides an interesting reflection on the future of the Compiler API.
Roslyn Cookbook - Book by Manish Vasani, a member of the Roslyn analyzers team. After covering analyzers, refactorings, and scripting in detail, the book goes in-depth explaining how to develop new C# language features and contribute to the Roslyn source code.

Tutorials

Awesome online tutorials to help you write your first analyzers, code fixes, and source generators.

Learn Roslyn Now - Series of blog posts that explore the Roslyn compiler API. It introduces the power of Roslyn through small self-contained examples. A perfect tutorial to start with :-)
How To Write a C# Analyzer and Code Fix - The mother of all Roslyn tutorials :-) A realistic step-by-step introduction to syntax and semantic analysis as well as the syntax transformation.
C# and Visual Basic - Use Roslyn to Write a Live Code Analyzer for Your API - Older but still not outdated, very detailed MSDN article on writing code analyzers.
C# - Adding a Code Fix to Your Roslyn Analyzer - The sequel to the previous MSDN article. A detailed introduction into code fixes.
Introducing C# Source Generators - Original announcement of the C# 9.0 Source Generators feature. Explains what source generators are, in which scenarios they are useful, and shows how to write a simple source generator.
New C# Source Generator Samples - Samples on how to write a non-trivial code generator driven by additional, non-code files like CSV files or Mustache templates.
C# Source Generators - Comprehensive list of additional learning sources, samples, and experimental and productive source generators. A perfect reference once you grasp the basics.

Open Source Projects

Awesome open source projects built on top of Roslyn.

Bridge - C# to JavaScript transpiler. Write modern mobile and web apps in C# and run them anywhere in JavaScript.
Code Converter - C# to VB.NET and VB.NET to C# transpiler.
CodeAnalysis.CSharp.PatternMatching - Intuitive pattern matching for Roslyn syntax trees. Simplifies C# syntax and semantic analysis.
CodeGeneration.Roslyn - Roslyn-based Code Generation during a build with design-time support.
dotnet-script - Runs C# scripts from the .NET CLI, defines NuGet packages inline and edit/debugs them in VS Code.
FlubuCore - Cross platform build automation tool for building projects and executing deployment scripts using C# code.
MirrorSharp - Online C#, VB.NET, and F# code editor. Features code completion, method signature help, quick fixes, and diagnostics.
OmniSharp - Enables a cross platform .NET development in the editor of your choice. A family of open source projects, each with one goal: To enable a great .NET experience in your editor of choice.
roslyn-linq-rewrite - Compiles C# code by first rewriting the syntax trees of LINQ expressions using plain procedural code. This increases performance by minimizes heap allocations and dynamic dispatch.
RoslynPad - Cross-platform C# editor. Features code completion, method signature help, quick fixes, and diagnostics.
RoslynQuoter - Online tool that for a given C# program generates syntax tree API calls that construct syntax tree of that program.
scriptcs - Turns C# into a powerful scripting tool. Features C# REPL, installation of NuGet packages, and execution of scripts with a single line of code.
Scripty - Tool to use Roslyn-powered C# scripts for code generation. You can think of it as a scripted alternative to T4 templates.
Sharpen - Visual Studio extension that intelligently introduces new C# language features into your existing code base.
SharpLab - .NET code playground. Displays intermediate steps and results of code compilation. Shows the code as compiler sees it. Allows selecting different branches and versions of Roslyn. Runs C#, VB.NET, and F# code in the browser.
Testura.Code - Wrapper around the Roslyn API used for generation, saving, and compiling C# code. Provides methods and helpers to generate classes, methods, statements, and expressions.
Uno SourceGenerator - C# source code generator based on a project being built, using all of its syntactic and semantic model information.

Open Source Analyzers, Code Fixes, and Refactorings

Awesome open source analyzers, code fixes, and refactorings.

.NET Analyzers - GitHub organization for the development of Roslyn analyzers. Various repositories within the organization cover analyzers for ASP.NET Core, WPF, IDisposable, usages of System.Reflection, etc.
.NET Compiler Platform ("Roslyn") Analyzers - Diagnostic analyzers developed by the Roslyn team. Initially developed to help flesh out the design and implementation of the static analysis APIs. The analyzers cover code quality, .NET Core, desktop .NET Framework, comments in code, and more.
Code Cracker - Analyzer library for C# and VB.NET. Offers diagnostics in many categories like performance, coding styles, as well as some basic refactorings.
CSharpGuidelinesAnalyzer - Reports diagnostics for C# coding guidelines (https://csharpcodingguidelines.com/).
ErrorProne.NET - Set of analyzers and code fixes focusing on the correctness and performance of C# programs. Inspired with Google's Error Prone.
Mapping Generator - Code fix that generates arbitrary complex object-object mappings. It recognizes out of the box a large number of scenarios where mappings are used. A design-time alternative to AutoMapper.
Nullable.Extended - Roslyn tools and analyzers to improve the experience when coding with nullable reference types.
Refactoring Essentials for Visual Studio - Refactorings, analyzers and code fixes for C# and VB.NET.
Roslyn Clr Heap Allocation Analyzer - C# heap allocation analyzer that can detect explicit and many implicit allocations like boxing, closures, implicit delegate creations, etc.
Roslynator - Collection of 190+ analyzers and 190+ refactorings for C#. Covers coding style, code readability and simplification, removing redundancies, fixing compiler errors, and many more.
SonarC# - Static code analyzer for C# language used as an extension for the SonarQube platform.
StyleCop Analyzers for the .NET Compiler Platform - Port of StyleCop rules to Roslyn.
VSDiagnostics - Collection of code-q