Microsoft.CodeAnalysis 入门

　　1 安装 Microsoft.CodeAnalysis

我这里创建的是WPF的项目，首先再VS2015中用NuGet控制台进行安装

Install-Package Microsoft.CodeAnalysis

Install-Package Microsoft.CodeAnalysis.CSharp.Scripting

2 using 添加

 using Microsoft.CodeAnalysis.Scripting;

 using Microsoft.CodeAnalysis.CSharp.Scripting;

 using Microsoft.CodeAnalysis.CSharp;

 using Microsoft.CodeAnalysis.CSharp.Syntax;

3 Hello World

  #region 01 Hello world

  //Hello Rolysn

   Console.WriteLine(CSharpScript.RunAsync(

                     @"string ret =""Hello Rolysn"";")

                     .Result.GetVariable("ret").Value);

  #endregion

4 引用和命名空间

 #region 02 References and Namespaces

 ScriptOptions scriptOptions = ScriptOptions.Default;

 #region 引用配置

 //Add reference to mscorlib

 var mscorlib = typeof(System.Object).Assembly;

 var systemCore = typeof(System.Linq.Enumerable).Assembly;

 scriptOptions = scriptOptions.AddReferences(mscorlib);

 scriptOptions = scriptOptions.AddReferences(systemCore);

 scriptOptions = scriptOptions.AddImports("System", "System.Linq", "System.Collections.Generic");

 #endregion

 var state = CSharpScript.RunAsync(@"int x=2;int y=3;int z =x*y;return z+1;");

 //int x=2 => 2

 string x = state.Result.GetVariable("x").Value.ToString();

 //return return z+1 => 7

 string retvalue = state.Result.ReturnValue.ToString();

 //Int32

 Type xtype = state.Result.GetVariable("x").Value.GetType();

 if(xtype.FullName == typeof(int).FullName)

 {

 }

 //int z =x*y => 6

 string z =state.Result.GetVariable("z").Value.ToString();

 string sourceCode = state.Result.Script.Code;

 string output = "";

 foreach (var p in state.Result.Variables)

 {

     output += string.Format("name:{0},type:{1},value:{2};", p.Name, p.Type, p.Value);

 }

 Console.WriteLine(output);

 #endregion

 #region 03 SyntaxTree

 var tree = CSharpSyntaxTree.ParseText(@"

         public class MyClass

         {

             public int FnSum(int x,int y)

             {

                     return x+y;

             }

         }");

 var syntaxRoot = tree.GetRoot();

 var MyClass = syntaxRoot.DescendantNodes().OfType<ClassDeclarationSyntax>().First();

 var MyMethod = syntaxRoot.DescendantNodes().OfType<MethodDeclarationSyntax>().First();

 Console.WriteLine(MyClass.Identifier.ToString());

 Console.WriteLine(MyMethod.Identifier.ToString());

 Console.WriteLine(MyMethod.ParameterList.ToString());

 #endregion

5  宿主对象交互

 #region 04 Globals

 var state4 = CSharpScript.RunAsync(@"var ret = requestData + "" from globals""; ", globals: new Globals { requestData = "hello world" });

 Console.WriteLine( state4.Result.GetVariable("ret").Value);

 #endregion

     public class Globals

     {

         /// <summary>

         /// 可以在脚本中直接进行调用

         /// </summary>

         public string requestData { get; set; }

     }