Visual Studio 11 CTP3 bug？

Question

Visual Studio 11预览错误？

我试着编译下面的例子，并收到意外的编译错误。

实施例1：

async = System.Threading.Tasks.Task; 
partial = System.Threading.Tasks.Task; 

class C 
{ 

    async async async(async async) { } // ok 

    async partial async(async async) { } // error CS1002: ; expected 
} 

实施例2：

using System.Threading.Tasks; 

class C 
{ 
    delegate Task<dynamic> ady(dynamic i); 

    delegate Task adv(); 

    void f() 
    { 

     ady d11 = new ady(async j => await j); // ok 

     ady d12 = new ady((async j => await j)); // error CS0149: Method name expected 

     ady d21 = new ady(async (j) => await j); // ok 

     ady d22 = new ady((async (j) => await j)); // error CS0149: Method name expected 

     adv d31 = new adv(async() => { dynamic d = 0; await d; }); // ok 

     adv d32 = new adv((async() => { dynamic d = 0; await d; })); // error CS0149: Method name expected 

     adv d41 = new adv(async delegate { }); // ok 

     adv d42 = new adv((async delegate { })); // error CS0149: Method name expected 

     adv d61 = new adv(async delegate { }); // ok 

     adv d62 = new adv((async delegate { })); // error CS0149: Method name expected 

     ady d71 = new ady(async delegate(dynamic d) { return await d; }); // ok 

     ady d72 = new ady((async delegate(dynamic d) { return await d; })); // error CS0149: Method name expected 
    } 
} 

Answer 1

由于

var a = new Action((() => {})); 

不VS 2010编译，我认为实施例2不是一个错误。或者如果是这样，它与async无关。

奇怪的是，ReSharper的并不将其标记为错误和

Action a = (() => {}); 

确实工作。