MethodImplAttribute MethodImplAttribute MethodImplAttribute MethodImplAttribute Class

Definición

Especifica los detalles de cómo se implementa un método.Specifies the details of how a method is implemented. Esta clase no puede heredarse.This class cannot be inherited.

public ref class MethodImplAttribute sealed : Attribute
[System.AttributeUsage(System.AttributeTargets.Constructor | System.AttributeTargets.Method, Inherited=false)]
[System.Runtime.InteropServices.ComVisible(true)]
[System.Serializable]
public sealed class MethodImplAttribute : Attribute
type MethodImplAttribute = class
    inherit Attribute
Public NotInheritable Class MethodImplAttribute
Inherits Attribute
Herencia
MethodImplAttributeMethodImplAttributeMethodImplAttributeMethodImplAttribute
Atributos

Ejemplos

En el ejemplo siguiente se MethodImplAttribute aplica GetCalendarName al método para asegurarse de que no esté insertado en tiempo de ejecución por el compilador Just-in-Time (JIT).The following example applies the MethodImplAttribute to the GetCalendarName method to ensure that it is not inlined at run time by the just-in-time (JIT) compiler.

using System;
using System.Globalization;
using System.Runtime.CompilerServices;

public class Utility
{
   [MethodImplAttribute(MethodImplOptions.NoInlining)] 
   public static string GetCalendarName(Calendar cal)
   {
      return cal.ToString().Replace("System.Globalization.", "").
                 Replace("Calendar", "");
   }
}
Imports System.Globalization
Imports System.Runtime.CompilerServices

Public Class Utility
   <MethodImplAttribute(MethodImplOptions.NoInlining)>
   Public Shared Function GetCalendarName(cal As Calendar) As String
      Return cal.ToString().Replace("System.Globalization.", "").Replace("Calendar", "")
   End Function
End Class

En el ejemplo siguiente se llama MethodInfo.GetMethodImplementationFlags al método para determinar qué marcas se establecen para GetCalendarName el método.The following example then calls the MethodInfo.GetMethodImplementationFlags method to determine which flags are set for the GetCalendarName method. También muestra que el MemberInfo.GetCustomAttributes método no recupera esta información.It also demonstrates that this information is not retrieved by the MemberInfo.GetCustomAttributes method.

using System;
using System.Reflection;

public class Example
{
   public static void Main()
   {
      // Use reflection to get a reference to the GetCalendarName method.
      Assembly assem = Assembly.LoadFrom(@".\Example.dll");
      Type type = assem.GetType("Utility");
      MethodInfo methodInfo = type.GetMethod("GetCalendarName");
      
      // Determine whether the method has any custom attributes.
      Console.Write("Utility.GetCalendarName custom attributes:");
      object[] attribs = methodInfo.GetCustomAttributes(false);
      if (attribs.Length > 0) {
         Console.WriteLine();
         foreach (var attrib in attribs)
            Console.WriteLine("   " + attrib.ToString());   

      }
      else {
         Console.WriteLine("   <None>");
      }

      // Get the method's metadata flags.
      MethodImplAttributes flags = methodInfo.GetMethodImplementationFlags();
      Console.WriteLine("Utility.GetCalendarName flags: {0}", 
                        flags.ToString());      
   }
}
// The example displays the following output:
//     Utility.GetCalendarName custom attributes:   <None>
//     Utility.GetCalendarName flags: NoInlining
Imports System.Reflection

Module Example
   Public Sub Main()
      ' Use reflection to get a reference to the GetCalendarName method.
      Dim assem As Assembly = Assembly.LoadFrom(".\Example.dll")
      Dim type As Type = assem.GetType("Utility")
      Dim methodInfo As MethodInfo = type.GetMethod("GetCalendarName")
      
      ' Determine whether the method has any custom attributes.
      Console.Write("Utility.GetCalendarName custom attributes:")
      Dim attribs() As Object = methodInfo.GetCustomAttributes(False)
      If attribs.Length > 0 Then
         Console.WriteLine()
         For Each attrib As Object In attribs
            Console.WriteLine("   " + attrib.ToString())   
         Next
      Else
         Console.WriteLine("   <None>")
      End If

      ' Get the method's metadata flags.
      Dim flags As MethodImplAttributes = methodInfo.GetMethodImplementationFlags()
      Console.WriteLine("Utility.GetCalendarName flags: {0}", flags.ToString())      
   End Sub
End Module
' The example displays the following output:
'     Utility.GetCalendarName custom attributes:   <None>
'     Utility.GetCalendarName flags: NoInlining

Comentarios

Este atributo se puede aplicar a métodos o constructores.You can apply this attribute to methods or constructors.

Este atributo permite personalizar la configuración del método o constructor al que se aplica proporcionando un MethodImplOptions valor a su constructor de clase.This attribute lets you customize the configuration of the method or constructor to which it applies by supplying a MethodImplOptions value to its class constructor. Los miembros de la MethodImplOptions enumeración corresponden a los campos de CorMethodImpl bits de la tabla de metadatos.The members of the MethodImplOptions enumeration correspond to bit fields in the CorMethodImpl metadata table. Esto significa que la información sobre el atributo no se puede recuperar en tiempo de ejecución MemberInfo.GetCustomAttributes llamando al método; en su lugar, se recupera llamando a MethodInfo.GetMethodImplementationFlags o ConstructorInfo.GetMethodImplementationFlags al método.This means that information on the attribute cannot be retrieved at run time by calling the MemberInfo.GetCustomAttributes method; instead, it is retrieved by calling either the MethodInfo.GetMethodImplementationFlags or the ConstructorInfo.GetMethodImplementationFlags method.

Constructores

MethodImplAttribute() MethodImplAttribute() MethodImplAttribute() MethodImplAttribute()

Inicializa una nueva instancia de la clase MethodImplAttribute.Initializes a new instance of the MethodImplAttribute class.

MethodImplAttribute(Int16) MethodImplAttribute(Int16) MethodImplAttribute(Int16) MethodImplAttribute(Int16)

Inicializa una nueva instancia de la clase MethodImplAttribute con el valor MethodImplOptions especificado.Initializes a new instance of the MethodImplAttribute class with the specified MethodImplOptions value.

MethodImplAttribute(MethodImplOptions) MethodImplAttribute(MethodImplOptions) MethodImplAttribute(MethodImplOptions) MethodImplAttribute(MethodImplOptions)

Inicializa una nueva instancia de la clase MethodImplAttribute con el valor MethodImplOptions especificado.Initializes a new instance of the MethodImplAttribute class with the specified MethodImplOptions value.

Campos

MethodCodeType MethodCodeType MethodCodeType MethodCodeType

Valor de MethodCodeType que indica el tipo de implementación proporcionado para este método.A MethodCodeType value indicating what kind of implementation is provided for this method.

Propiedades

TypeId TypeId TypeId TypeId

Cuando se implementa en una clase derivada, obtiene un identificador único para este Attribute.When implemented in a derived class, gets a unique identifier for this Attribute.

(Inherited from Attribute)
Value Value Value Value

Obtiene el valor de MethodImplOptions que describe el método al que se aplicó el atributo.Gets the MethodImplOptions value describing the attributed method.

Métodos

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

Devuelve un valor que indica si esta instancia es igual que un objeto especificado.Returns a value that indicates whether this instance is equal to a specified object.

(Inherited from Attribute)
GetHashCode() GetHashCode() GetHashCode() GetHashCode()

Devuelve el código hash de esta instancia.Returns the hash code for this instance.

(Inherited from Attribute)
GetType() GetType() GetType() GetType()

Obtiene el Type de la instancia actual.Gets the Type of the current instance.

(Inherited from Object)
IsDefaultAttribute() IsDefaultAttribute() IsDefaultAttribute() IsDefaultAttribute()

Si se reemplaza en una clase derivada, indica si el valor de esta instancia es el valor predeterminado de la clase derivada.When overridden in a derived class, indicates whether the value of this instance is the default value for the derived class.

(Inherited from Attribute)
Match(Object) Match(Object) Match(Object) Match(Object)

Cuando se invalida en una clase derivada, devuelve un valor que indica si esta instancia es igual a un objeto especificado.When overridden in a derived class, returns a value that indicates whether this instance equals a specified object.

(Inherited from Attribute)
MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

Crea una copia superficial del objeto Object actual.Creates a shallow copy of the current Object.

(Inherited from Object)
ToString() ToString() ToString() ToString()

Devuelve una cadena que representa el objeto actual.Returns a string that represents the current object.

(Inherited from Object)

Implementaciones de interfaz explícitas

_Attribute.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr) _Attribute.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr) _Attribute.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr) _Attribute.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr)

Asigna un conjunto de nombres a un conjunto correspondiente de identificadores de envío.Maps a set of names to a corresponding set of dispatch identifiers.

(Inherited from Attribute)
_Attribute.GetTypeInfo(UInt32, UInt32, IntPtr) _Attribute.GetTypeInfo(UInt32, UInt32, IntPtr) _Attribute.GetTypeInfo(UInt32, UInt32, IntPtr) _Attribute.GetTypeInfo(UInt32, UInt32, IntPtr)

Obtiene la información de tipos de un objeto, que puede utilizarse para obtener la información de tipos de una interfaz.Retrieves the type information for an object, which can be used to get the type information for an interface.

(Inherited from Attribute)
_Attribute.GetTypeInfoCount(UInt32) _Attribute.GetTypeInfoCount(UInt32) _Attribute.GetTypeInfoCount(UInt32) _Attribute.GetTypeInfoCount(UInt32)

Recupera el número de interfaces de información de tipo que proporciona un objeto (0 ó 1).Retrieves the number of type information interfaces that an object provides (either 0 or 1).

(Inherited from Attribute)
_Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr) _Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr) _Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr) _Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr)

Proporciona acceso a las propiedades y los métodos expuestos por un objeto.Provides access to properties and methods exposed by an object.

(Inherited from Attribute)

Se aplica a

Consulte también: