[BUG]编译无法解析命名空间类差异 [英] [BUG] Compile can't resolve namespace class differences
问题描述
似乎C＃编译无法解决
命名空间与明确无误的情况下的类之间的区别。注意
它看到命名空间C在课程C之前。我相信它应该看到班级C。首先。
test1.cs：
=============
使用系统;
使用AC;
名称空间AB
{
公共类D
{
D（）{C c = new C（）; }
}
}
test2.cs：
======= ======
使用系统;
名称空间AC
{
公共舱C
{
int X;
}
}
=============
C：\> csc / target：library test1.cs test2.cs
Microsoft（R）Visual C＃.NET编译器版本7.00.9466
for Microsoft（R）.NET Framework版本1.0.3705
版权所有（C） Microsoft Corporation 2001.保留所有权利。
test1.cs（8,9）：错误CS0118：''A.C''表示''命名空间''其中a'' class''是
预期
It seems like the C# compile can''t resolve the difference between a
namespace and a class in a situation that is clearly unambiguous. Note
that it sees the namespace "C" before the class "C". I believe it
should see the class "C" first.
test1.cs:
=============
using System;
using A.C;
namespace A.B
{
public class D
{
D() { C c = new C(); }
}
}
test2.cs:
=============
using System;
namespace A.C
{
public class C
{
int X;
}
}
=============
C:\>csc /target:library test1.cs test2.cs
Microsoft (R) Visual C# .NET Compiler version 7.00.9466
for Microsoft (R) .NET Framework version 1.0.3705
Copyright (C) Microsoft Corporation 2001. All rights reserved.
test1.cs(8,9): error CS0118: ''A.C'' denotes a ''namespace'' where a ''class'' was
expected
推荐答案
类不能具有相同的命名空间名称。
Christian。
" Matt Mastracci" <毫安** @ aclaro.com> ha scritto nel messaggio
新闻：％2 **************** @ TK2MSFTNGP10.phx.gbl ...
Classes can not have same name of namespaces.
Christian.
"Matt Mastracci" <ma**@aclaro.com> ha scritto nel messaggio
news:%2****************@TK2MSFTNGP10.phx.gbl...
它看起来C＃编译无法解决
命名空间和类中明显无歧义的情况之间的区别。注意
它看到名称空间C。在课程C之前。我相信它应该看到班级C。首先。
test1.cs：
=============
使用系统;
使用AC;
名称空间AB
公共类D
{（D）（C c = new C（）; }
}
test2.cs：
=============
使用系统;
命名空间AC
{
公共课C
{X /
}
}
=============
C：\> csc / target：library test1.cs test2.cs
Microsoft（R）Visual C＃.NET编译器版本7.00.9466
Microsoft（R）.NET Framework版本1.0.3705
版权所有（C）Microsoft Corporation 2001.保留所有权利。
test1。 cs（8,9）：错误CS0118：''A.C''表示''名称空间''，其中''类''
是预期的
It seems like the C# compile can''t resolve the difference between a
namespace and a class in a situation that is clearly unambiguous. Note
that it sees the namespace "C" before the class "C". I believe it
should see the class "C" first.
test1.cs:
=============
using System;
using A.C;
namespace A.B
{
public class D
{
D() { C c = new C(); }
}
}
test2.cs:
=============
using System;
namespace A.C
{
public class C
{
int X;
}
}
=============
C:\>csc /target:library test1.cs test2.cs
Microsoft (R) Visual C# .NET Compiler version 7.00.9466
for Microsoft (R) .NET Framework version 1.0.3705
Copyright (C) Microsoft Corporation 2001. All rights reserved.
test1.cs(8,9): error CS0118: ''A.C'' denotes a ''namespace'' where a ''class'' was expected
马特，
这不是明确的，实际上是不允许的。因为这个原因，你不能在命名空间中使用与命名空间明确相同的名称的类中使用
。如果你在C类中有一个嵌套类型怎么办？编译器
必须在不知道C是什么的情况下进行猜测，并且我不会在任何编译器中信任
。
希望这会有所帮助。
-
- Nicholas Paldino [.NET / C＃MVP]
- ni ************** @ exisconsulting.com
" Matt Mastracci" <毫安** @ aclaro.com>在留言中写道
新闻：％2 **************** @ TK2MSFTNGP10.phx.gbl ...
Matt,
It is not unambiguous, and it is actually disallowed. You can not have
a class in a namespace with the same name as the namespace explicitly
because of this. What if you had a nested type in class C? The compiler
would have to guess without knowing what C is, and I wouldn''t put my trust
in any compiler that did that.
Hope this helps.
--
- Nicholas Paldino [.NET/C# MVP]
- ni**************@exisconsulting.com
"Matt Mastracci" <ma**@aclaro.com> wrote in message
news:%2****************@TK2MSFTNGP10.phx.gbl...
似乎就像C＃编译无法在明确无误的情况下解决
命名空间和类之间的区别。注意
它看到名称空间C。在课程C之前。我相信它应该看到班级C。首先。
test1.cs：
=============
使用系统;
使用AC;
名称空间AB
公共类D
{（D）（C c = new C（）; }
}
test2.cs：
=============
使用系统;
命名空间AC
{
公共课C
{X /
}
}
=============
C：\> csc / target：library test1.cs test2.cs
Microsoft（R）Visual C＃.NET编译器版本7.00.9466
Microsoft（R）.NET Framework版本1.0.3705
版权所有（C）Microsoft Corporation 2001.保留所有权利。
test1。 cs（8,9）：错误CS0118：''A.C''表示''名称空间''，其中''类''
是预期的
It seems like the C# compile can''t resolve the difference between a
namespace and a class in a situation that is clearly unambiguous. Note
that it sees the namespace "C" before the class "C". I believe it
should see the class "C" first.
test1.cs:
=============
using System;
using A.C;
namespace A.B
{
public class D
{
D() { C c = new C(); }
}
}
test2.cs:
=============
using System;
namespace A.C
{
public class C
{
int X;
}
}
=============
C:\>csc /target:library test1.cs test2.cs
Microsoft (R) Visual C# .NET Compiler version 7.00.9466
for Microsoft (R) .NET Framework version 1.0.3705
Copyright (C) Microsoft Corporation 2001. All rights reserved.
test1.cs(8,9): error CS0118: ''A.C'' denotes a ''namespace'' where a ''class'' was expected
没有......试一试。 :)
BTW，经过一番思考后，我认为如果你同时拥有一个
命名空间C，那就不明确了。和C类关闭命名空间A.B。如果我在命名空间C中有一个带有内部类C的类b，那么编译器可以抛出
模糊引用错误，我有：
ABCC< - 外层
ABCCC< - 内层
如果我有C（1）类内部C类名称空间AB和一个C类
（2）在命名空间ABC中，它变得含糊不清：
ABCC< - C（1）
ABCC< - C（2）
马特。
Christian写道：
Nope... Give it a shot. :)
BTW, after some thought, I think it''s only ambiguous if you have both a
namespace "C" and a class "C" off the namespace "A.B". If I have a
class C with an inner class C in namespace C, the compiler can throw the
ambiguous reference error and I have:
A.B.C.C <- outer class
A.B.C.C.C <- inner class
If I have class C (1) with inner class C in namespace A.B and a class C
(2) in namespace A.B.C, it gets ambiguous:
A.B.C.C <- C (1)
A.B.C.C <- C (2)
Matt.
Christian wrote:
当然。
不是吗？
Matt Mastracci <毫安** @ aclaro.com> ha scritto nel messaggio
新闻：3F ************** @ aclaro.com ...
Of course.
Doesn''it?
"Matt Mastracci" <ma**@aclaro.com> ha scritto nel messaggio
news:3F**************@aclaro.com...
C＃编译器应该是标记该类与名称相同的名称作为错误命名空间？
Nicholas Paldino [.NET / C＃MVP]写道：
Should the C# compiler then be marking the class with the same name as
the namespace as an error?
Nicholas Paldino [.NET/C# MVP] wrote:
马特，
这不是明确的，实际上是不允许的。由于这个原因，你不能在命名空间中明确地使用与命名空间同名的类。如果你在C类中有一个嵌套类型怎么办？
编译器将不得不在不知道C是什么的情况下进行猜测，并且我不会在任何编译器中使用我的
信任
Matt,
It is not unambiguous, and it is actually disallowed. You can not
have
a class in a namespace with the same name as the namespace explicitly
because of this. What if you had a nested type in class C? The
compiler
would have to guess without knowing what C is, and I wouldn''t put my
trust
in any compiler that did that.
Hope this helps.
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