Visual Studio调试“快速观察”工具和lambda表达式 [英] Visual Studio debugging "quick watch" tool and lambda expressions

问题描述

为什么在快速观察窗口中调试时不能使用lambda表达式？

Why can't I use lambda expressions while debugging in "Quick watch" window?

UPD：另请参见

http://blogs.msdn.com/b/jaredpar/archive/2009/08/26/why-no-linq-in-debugger-windows.aspx

http://blogs.msdn.com/b/jaredpar/archive/2010/06/02/why-is-linq-absent-from-debugger-windows-part-2。 aspx

推荐答案

Lambda表达式，像匿名方法，实际上是非常复杂的野兽。即使我们排除了表达式（.NET 3.5），仍然留下了一个复杂的批次，而不是被捕获的变量，构造使用它们的代码（你认为变量变成编译器生成的类的字段），有一点烟雾和镜像。

Lambda expressions, like anonymous methods, are actually very complex beasts. Even if we rule out Expression (.NET 3.5), that still leaves a lot of complexity, not least being captured variables, which fundamentally re-structure the code that uses them (what you think of as variables become fields on compiler-generated classes), with a bit of smoke and mirrors.

因此， m不是最不惊讶的是你不能空闲使用它们 - 有一个支持这种魔法的编译器工作（和幕后类型生成）的批次。

As such, I'm not in the least surprised that you can't use them idly - there is a lot of compiler work (and type generation behind the scenes) that supports this magic.

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