Run time compilation with Microsoft.CodeAnalysis(Roslyn) services

Roslyncompiler.cs

  class Program
    {
        private static readonly IEnumerable<string> DefaultNamespaces =
            new[]
            {
                "System", 
                "System.IO", 
                "System.Net", 
                "System.Linq", 
                "System.Text", 
                "System.Text.RegularExpressions", 
                "System.Collections.Generic"
            };

        private static string runtimePath = @"C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5.1\{0}.dll";

        private static readonly IEnumerable<MetadataReference> DefaultReferences =
            new[]
            {
                MetadataReference.CreateFromFile(string.Format(runtimePath, "mscorlib")),
                MetadataReference.CreateFromFile(string.Format(runtimePath, "System")),
                MetadataReference.CreateFromFile(string.Format(runtimePath, "System.Core"))
            };

        private static readonly CSharpCompilationOptions DefaultCompilationOptions =
            new CSharpCompilationOptions(OutputKind.DynamicallyLinkedLibrary)
                    .WithOverflowChecks(true).WithOptimizationLevel(OptimizationLevel.Release)
                    .WithUsings(DefaultNamespaces);

        public static SyntaxTree Parse(string text, string filename = "", CSharpParseOptions options = null)
        {
            var stringText = SourceText.From(text, Encoding.UTF8);
            return SyntaxFactory.ParseSyntaxTree(stringText, options, filename);
        }

        static void Main(string[] args)
        {
            var fileToCompile = @"C:\Users\DesktopHome\Documents\Visual Studio 2013\Projects\ConsoleForEverything\SignalR_Everything\Program.cs";
            var source = File.ReadAllText(fileToCompile);
            var parsedSyntaxTree = Parse(source, "", CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp5));

            var compilation
                = CSharpCompilation.Create("Test.dll", new SyntaxTree[] { parsedSyntaxTree }, DefaultReferences, DefaultCompilationOptions);
            try
            {
                var result = compilation.Emit(@"c:\temp\Test.dll");

                Console.WriteLine(result.Success ? "Sucess!!" : "Failed");
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex);
            }
            Console.Read();
        }
    }