Roslyn Tutorial

Introduction to Roslyn

Roslyn is an open-source compiler platform developed by Microsoft. It provides APIs for analyzing and manipulating C# and VB.NET code.

Installing Roslyn

To get started with Roslyn, follow these steps:

1. Install Visual Studio.
2. Create a new C# project.
3. Add the Roslyn NuGet package.

Basic Usage

Let's write a simple program using Roslyn:

using Microsoft.CodeAnalysis;
using Microsoft.CodeAnalysis.CSharp;

class Program
{
    static void Main(string[] args)
    {
        string code = "using System; class Program { static void Main() { Console.WriteLine(\"Hello, Roslyn!\"); } }";
        SyntaxTree syntaxTree = CSharpSyntaxTree.ParseText(code);

        // Analyze or modify the syntax tree here

        Console.WriteLine(syntaxTree.GetRoot());
    }
}
        

Analyzing Code

Roslyn provides powerful tools for analyzing code:

• Use SyntaxWalker to traverse the syntax tree.
• Use SymbolVisitor to work with symbols (classes, methods, variables, etc.).