using System;

using System.IO;

using System.Reflection;

using Microsoft.CodeAnalysis;

using Microsoft.CodeAnalysis.CSharp;

using Microsoft.CodeAnalysis.CSharp.Syntax;

​

public class Program

{

    public void Main()

    {

        SyntaxTree tree = CSharpSyntaxTree.ParseText(

         @"using System;

         using System.Collections.Generic;

         using System.Text;

         namespace HelloWorld

         {

             class Program

             {

                 static void Main(string[] args)

                 {

                     Console.WriteLine(""Hello, TDN!"");

                 }

             }

         }");

         var root = (CompilationUnitSyntax)tree.GetRoot();

         var compilation = CSharpCompilation.Create("HelloTDN")

                .AddReferences(references: new[] { MetadataReference.CreateFromAssembly(typeof(object).Assembly) })

                .AddSyntaxTrees(tree);

    }

    private static Assembly CompileSourceRoslyn(string fooSource)

        {

            using (var ms = new MemoryStream())

            {

                string assemblyFileName = "gen" + Guid.NewGuid().ToString().Replace("-", "") + ".dll";

​

                CSharpCompilation compilation = CSharpCompilation.Create(assemblyFileName,

                    new[] {CSharpSyntaxTree.ParseText(fooSource)},

                    new[]

                    {

                        MetadataReference.CreateFromAssembly(typeof(object).Assembly)

                    },

                    new CSharpCompilationOptions(OutputKind.DynamicallyLinkedLibrary)

                    );

​

                compilation.Emit(ms);

                Assembly assembly = Assembly.Load(ms.GetBuffer());

                return assembly;

            }

        }

}