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; }
 
     }