AssemblyFlagsAttribute 类

定义

命名空间:

System.Reflection

程序集:

System.Runtime.dll

Source:

AssemblyFlagsAttribute.cs

为程序集指定 AssemblyNameFlags 标志的按位组合，从而描述实时 (JIT) 编译器选项，该程序集是否可重定目标以及是否有完整或已标记化的公钥。 此类不能被继承。

public ref class AssemblyFlagsAttribute sealed : Attribute

[System.AttributeUsage(System.AttributeTargets.Assembly, Inherited=false)]
public sealed class AssemblyFlagsAttribute : Attribute

[<System.AttributeUsage(System.AttributeTargets.Assembly, Inherited=false)>]
type AssemblyFlagsAttribute = class
    inherit Attribute

Public NotInheritable Class AssemblyFlagsAttribute
Inherits Attribute

继承

Object

Attribute

AssemblyFlagsAttribute

属性

AttributeUsageAttribute

示例

下面的代码示例演示如何将 应用于 AssemblyFlagsAttribute 程序集，以及如何在运行时读取标志。 该示例还创建 特性的实例，并使用 AssemblyFlags 属性显示标志。 有关如何将 应用于 AssemblyFlagsAttribute 动态程序集的示例，请参阅 AssemblyName.Flags 属性。

using namespace System;
using namespace System::Reflection;

// Specify a combination of AssemblyNameFlags for this
// assembly.
[assembly:AssemblyFlagsAttribute(
     AssemblyNameFlags::EnableJITcompileOptimizer
   | AssemblyNameFlags::Retargetable)];

public ref class Example
{
public:
   static void Main()
   {
      // Get this assembly.
      Assembly^ thisAsm = Example::typeid->Assembly;
      
      // Get the AssemblyName for this assembly.
      AssemblyName^ thisAsmName = thisAsm->GetName( false );
      
      // Display the flags that were set for this assembly.
      ListFlags( thisAsmName->Flags );
      
      // Create an instance of AssemblyFlagsAttribute with the
      // same combination of flags that was specified for this
      // assembly. Note that PublicKey is included automatically
      // for the assembly, but not for this instance of
      // AssemblyFlagsAttribute.
      AssemblyFlagsAttribute^ afa = gcnew AssemblyFlagsAttribute( 
         static_cast<AssemblyNameFlags> (AssemblyNameFlags::EnableJITcompileOptimizer
                                       | AssemblyNameFlags::Retargetable) );
      
      // Get the flags. The property returns an integer, so
      // the return value must be cast to AssemblyNameFlags.
      AssemblyNameFlags anf = static_cast<AssemblyNameFlags>(afa->AssemblyFlags);
      
      // Display the flags.
      Console::WriteLine();
      ListFlags( anf );
   }

private:
   static void ListFlags( AssemblyNameFlags anf )
   {
      if ( anf == AssemblyNameFlags::None )
      {
         Console::WriteLine( L"AssemblyNameFlags.None" );
      }
      else
      {
         if ( 0 != static_cast<Int32>(anf & AssemblyNameFlags::Retargetable) )
                  Console::WriteLine( L"AssemblyNameFlags.Retargetable" );
         if ( 0 != static_cast<Int32>(anf & AssemblyNameFlags::PublicKey) )
                  Console::WriteLine( L"AssemblyNameFlags.PublicKey" );
         if ( 0 != static_cast<Int32>(anf & AssemblyNameFlags::EnableJITcompileOptimizer) )
                  Console::WriteLine( L"AssemblyNameFlags.EnableJITcompileOptimizer" );
         if ( 0 != static_cast<Int32>(anf & AssemblyNameFlags::EnableJITcompileTracking) )
                  Console::WriteLine( L"AssemblyNameFlags.EnableJITcompileTracking" );
      }
   }

};

int main()
{
   Example::Main();
}

/* This code example produces the following output:

AssemblyNameFlags.Retargetable
AssemblyNameFlags.PublicKey
AssemblyNameFlags.EnableJITcompileOptimizer

AssemblyNameFlags.Retargetable
AssemblyNameFlags.EnableJITcompileOptimizer
*/

using System;
using System.Reflection;

// Specify a combination of AssemblyNameFlags for this
// assembly.
[assembly:AssemblyFlagsAttribute(
    AssemblyNameFlags.EnableJITcompileOptimizer |
    AssemblyNameFlags.Retargetable)]

public class Example
{
    public static void Main()
    {
        // Get this assembly.
        Assembly thisAsm = typeof(Example).Assembly;

        // Get the AssemblyName for this assembly.
        AssemblyName thisAsmName = thisAsm.GetName(false);

        // Display the flags that were set for this assembly.
        ListFlags(thisAsmName.Flags);

        // Create an instance of AssemblyFlagsAttribute with the
        // same combination of flags that was specified for this
        // assembly. Note that PublicKey is included automatically
        // for the assembly, but not for this instance of
        // AssemblyFlagsAttribute.
        AssemblyFlagsAttribute afa = new AssemblyFlagsAttribute(
            AssemblyNameFlags.EnableJITcompileOptimizer |
            AssemblyNameFlags.Retargetable);

        // Get the flags. The property returns an integer, so
        // the return value must be cast to AssemblyNameFlags.
        AssemblyNameFlags anf = (AssemblyNameFlags) afa.AssemblyFlags;

        // Display the flags.
        Console.WriteLine();
        ListFlags(anf);
    }

    private static void ListFlags(AssemblyNameFlags anf)
    {
        if (anf == AssemblyNameFlags.None)
        {
            Console.WriteLine("AssemblyNameFlags.None");
        }
        else
        {
            if (0!=(anf & AssemblyNameFlags.Retargetable))
                Console.WriteLine("AssemblyNameFlags.Retargetable");
            if (0!=(anf & AssemblyNameFlags.PublicKey))
                Console.WriteLine("AssemblyNameFlags.PublicKey");
            if (0!=(anf & AssemblyNameFlags.EnableJITcompileOptimizer))
                Console.WriteLine("AssemblyNameFlags.EnableJITcompileOptimizer");
            if (0!=(anf & AssemblyNameFlags.EnableJITcompileTracking))
                Console.WriteLine("AssemblyNameFlags.EnableJITcompileTracking");
        }
    }
}

/* This code example produces the following output:

AssemblyNameFlags.Retargetable
AssemblyNameFlags.PublicKey
AssemblyNameFlags.EnableJITcompileOptimizer

AssemblyNameFlags.Retargetable
AssemblyNameFlags.EnableJITcompileOptimizer
*/

Imports System.Reflection

' Specify a combination of AssemblyNameFlags for this 
' assembly.
<Assembly:AssemblyFlagsAttribute( _
       AssemblyNameFlags.EnableJITcompileOptimizer _
    Or AssemblyNameFlags.Retargetable)>

Public Class Example
    Public Shared Sub Main()
        ' Get this assembly.
        Dim thisAsm As Assembly = GetType(Example).Assembly

        ' Get the AssemblyName for this assembly.
        Dim thisAsmName As AssemblyName = thisAsm.GetName(False)

        ' Display the flags that were set for this assembly.
        ListFlags(thisAsmName.Flags)

        ' Create an instance of AssemblyFlagsAttribute with the
        ' same combination of flags that was specified for this
        ' assembly. Note that PublicKey is included automatically
        ' for the assembly, but not for this instance of
        ' AssemblyFlagsAttribute.
        Dim afa As New AssemblyFlagsAttribute( _
               AssemblyNameFlags.EnableJITcompileOptimizer _
            Or AssemblyNameFlags.Retargetable)

        ' Get the flags. The property returns an integer, so
        ' the return value must be cast to AssemblyNameFlags.
        Dim anf As AssemblyNameFlags = _
            CType(afa.AssemblyFlags, AssemblyNameFlags)

        ' Display the flags.
        Console.WriteLine()
        ListFlags(anf)
    End Sub

    Private Shared Sub ListFlags(ByVal anf As AssemblyNameFlags)

        If anf = AssemblyNameFlags.None Then
            Console.WriteLine("AssemblyNameFlags.None")
        Else
            If 0 <> (anf And AssemblyNameFlags.Retargetable) Then _
                Console.WriteLine("AssemblyNameFlags.Retargetable")
            If 0 <> (anf And AssemblyNameFlags.PublicKey) Then _
                Console.WriteLine("AssemblyNameFlags.PublicKey")
            If 0 <> (anf And AssemblyNameFlags.EnableJITcompileOptimizer) Then _
                Console.WriteLine("AssemblyNameFlags.EnableJITcompileOptimizer")
            If 0 <> (anf And AssemblyNameFlags.EnableJITcompileTracking) Then _
                Console.WriteLine("AssemblyNameFlags.EnableJITcompileTracking")
        End If

    End SUb
End Class

' This code example produces the following output:
'
'AssemblyNameFlags.Retargetable
'AssemblyNameFlags.PublicKey
'AssemblyNameFlags.EnableJITcompileOptimizer
'
'AssemblyNameFlags.Retargetable
'AssemblyNameFlags.EnableJITcompileOptimizer

注解

AssemblyNameFlags枚举描述可以使用此属性设置的程序集特征。

若要访问为程序集指定的标志，请使用 Assembly.GetName 属性获取 AssemblyName 对象，然后使用 AssemblyName.Flags 属性获取 AssemblyNameFlags 值。

若要指定AssemblyNameFlags动态程序集的标志，请设置AssemblyName.Flags传递给 AppDomain.DefineDynamicAssembly 方法的 AssemblyName 对象的 属性。

构造函数

AssemblyFlagsAttribute(AssemblyNameFlags)	使用 AssemblyFlagsAttribute 标志的指定组合初始化 AssemblyNameFlags 类的新实例。
AssemblyFlagsAttribute(Int32)	已过时. 使用 AssemblyFlagsAttribute 标志（被强制转换为整数值）的指定组合初始化 AssemblyNameFlags 类的新实例。
AssemblyFlagsAttribute(UInt32)	已过时. 使用 AssemblyFlagsAttribute 标志（被强制转换为无符号整数值）的指定组合初始化 AssemblyNameFlags 类的新实例。

属性

AssemblyFlags	获取一个整数值，该值表示在创建此属性实例时指定的 AssemblyNameFlags 标志的组合。
Flags	已过时. 获取一个无符号整数值，该值表示创建此属性实例时指定的 AssemblyNameFlags 标志的组合。
TypeId	在派生类中实现时，获取此 Attribute 的唯一标识符。 (继承自 Attribute)

方法

Equals(Object)	返回一个值，该值指示此实例是否与指定的对象相等。 (继承自 Attribute)
GetHashCode()	返回此实例的哈希代码。 (继承自 Attribute)
GetType()	获取当前实例的 Type。 (继承自 Object)
IsDefaultAttribute()	在派生类中重写时，指示此实例的值是否是派生类的默认值。 (继承自 Attribute)
Match(Object)	当在派生类中重写时，返回一个指示此实例是否等于指定对象的值。 (继承自 Attribute)
MemberwiseClone()	创建当前 Object 的浅表副本。 (继承自 Object)
ToString()	返回表示当前对象的字符串。 (继承自 Object)

另请参阅

• AssemblyNameFlags
• GetName
• Flags