有一个“+"在类名中?

问题描述

类名:MyAssembly.MyClass+MyOtherClass

问题很明显是+作为分隔符，而不是传统的点，它的作用，要找官方文档看看有没有其他分隔符.

解决方案

这就是嵌套类型的表示方式.例如:

命名空间 Foo{类外{类嵌套 {}}}

将在编译后的代码中创建一个全名为Foo.Outer+Nested的类型.(例如，这就是 typeof(Outer.Nested).FullName 将返回的内容.)

我不清楚这是指定的行为，还是Microsoft C#编译器选择使用的行为；它是一个不可描述"的名称，因为您无法在普通 C# 中显式声明一个带有 + 的类，因此编译器知道它不会与其他任何东西发生冲突.据我所知，C# 3 规范的第 10.3.8 节并未规定编译后的名称.

我刚刚看到 Type.AssemblyQualifiedName 指定在嵌套类型名称之前使用+"...但仍不清楚这是否实际上是必需的或只是常规的.>

Class name: MyAssembly.MyClass+MyOtherClass

The problem is obviously the + as separator, instead of traditionnal dot, its function, and to find official documentation to see if others separators exist.

解决方案

That's just the way that a nested type is represented. So for example:

namespace Foo
{
    class Outer
    {
        class Nested {}
    }
}

will create a type with a full name of Foo.Outer+Nested in the compiled code. (So that's what typeof(Outer.Nested).FullName would return, for example.)

It's not clear to me whether this is specified behaviour, or just what the Microsoft C# compiler chooses to use; it's an "unspeakable" name in that you couldn't explicitly declare a class with a + in it in normal C#, so the compiler knows it won't clash with anything else. Section 10.3.8 of the C# 3 spec doesn't dictate the compiled name as far as I can see.

EDIT: I've just seen that Type.AssemblyQualifiedName specifies that "+" is used to precede a nested type name... but it's still not clear whether or not that's actually required or just conventional.

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