awesome-roslyn

by Alessandro Del Sole and the perfect book to start with. Explains Roslyn APIs and afterward focuses on writing analyzers and refactorings

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

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

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

Older but still not outdated, very detailed MSDN article on writing code analyzers

The sequel to the previous MSDN article. A detailed introduction into code fixes

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

Samples on how to write a non-trivial code generator driven by additional, non-code files like CSV files or 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

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

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

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

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

Visual Studio extension that intelligently introduces new C# language features into your existing code base

.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

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 ( )

ErrorProne.NET

Set of analyzers and code fixes focusing on the correctness and performance of C# programs. Inspired with Google's

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

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-quality analyzers. Covers usages of async methods, flags enums, best practices in exception handling as well as many other code-quality checks

Microsoft.CodeAnalysis.Testing

Library for testing analyzers and code fixes with NUnit, xUnit and MSTest frameworks. A part of

RoslynTestKit

Lightweight framework for writing unit tests for analyzers, code fixes, refactorings, and completion providers. It's unit testing framework agnostic

DpDtInject

Proof-of-concept of a dependency injection container that transfers huge piece of resolving logic to the compilation stage. Offers additional compile-time safety and fast runtime resolution

Generator.Equals

Automatically implements equality and hashing for classes and records. Supports different comparison strategies. Offers similar functionality like IL weaving-based

JsonSrcGen

Reflection-free JSON serializer. Allows extremely fast JSON processing by generating reflection-free serializers at the compile time

Online application that lets you experiment with source generators. Perfect for learning and testing your ideas. Write your own source generator or learn from built-in examples and see the generated output

StrongInject

Compile-time dependency injection container. Compile-time checked, reflection-free and runtime code generation free, thus fast and -friendly

StructPacker

Low-level, lightweight and performance-focused serializer for C# struct types. Auto-generates C# serialization code to achieve peak runtime performance and efficiency

Svg to C# Source Generators

SVG to C# compiler. Compiles SVG drawing markup to C# using as rendering engine

WrapperValueObject

Creates boilerplate free wrappers around types. Especially useful for creating

Roslyn's journey, presented by Mads Torgersen, the lead designer of C#. Inspiring story on how Roslyn project started and why, and what it took to make it open source

In-depth look at Roslyn's performance with the focus on memory consumption

Inspiring introduction on how Roslyn team implemented immutable, reusable trees with cheap parent references and many other goodies. Quote: "But on the Roslyn team we routinely do impossible things" :-)

Excellent explanation why ReSharper will not use Roslyn. Includes good discussion on static code analysis and some limits of Roslyn

Insight on how Roslyn team approaches the topic of evaluating and achieving performance

Great talk by Kasey Uhlenhuth at NDC Oslo 2018 covering Roslyn essentials and APIs and tools for building code analyzers and fixes