Roslyn Compiler as a service

Question

I would like to ask you for explanation of how to use the roslyn as a service to integrate it in the application that I developed?

Also, how could I use it as compiler that take code form user and produce the output?

I have searched a lot but I can't understand that

I started already with a simple solution but there are some errors:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.ComponentModel;
using Roslyn.Scripting;
using Roslyn.Scripting.CSharp;
namespace RoslynTest
{
    class Program
    {
        static void Main(string[] args)
        {
            ScriptEngine engine = new ScriptEngine();
            Session session = Session.Create();
            engine.Execute("using system;", session);
            engine.Execute("for(int i=0;i<10; i++) console.writeLine(i*1); ", session);
        }
    }
}

The errors are:

Error 1 'Roslyn.Scripting.Session' does not contain a definition for 'Create'

Error 2 'Roslyn.Scripting.CSharp.ScriptEngine' does not contain a definition for 'Execute' and no extension method 'Execute' accepting a first argument of type 'Roslyn.Scripting.CSharp.ScriptEngine' could be found (are you missing a using directive or an assembly reference?)

Answer 1

You're doing it all wrong.

First you'll need to add the references to the appropriate compiler assemblies.

Roslyn.Compilers.dll
Roslyn.Compilers.CSharp.dll

Add any using lines you may want.

using Roslyn.Scripting.CSharp;

Then create the engine, your session and run your code.

var engine = new ScriptEngine();
var session = engine.CreateSession();
session.Execute("using System;");
session.Execute("for (int i = 0; i < 10; i++) Console.WriteLine(i);");