PureAttribute 类

定义

指示类型或方法是纯函数,即它不会执行任何可见状态更改。Indicates that a type or method is pure, that is, it does not make any visible state changes.

public ref class PureAttribute sealed : Attribute
[System.AttributeUsage(System.AttributeTargets.Class | System.AttributeTargets.Constructor | System.AttributeTargets.Delegate | System.AttributeTargets.Event | System.AttributeTargets.Method | System.AttributeTargets.Parameter | System.AttributeTargets.Property, AllowMultiple=false, Inherited=true)]
[System.Diagnostics.Conditional("CONTRACTS_FULL")]
public sealed class PureAttribute : Attribute
[<System.AttributeUsage(System.AttributeTargets.Class | System.AttributeTargets.Constructor | System.AttributeTargets.Delegate | System.AttributeTargets.Event | System.AttributeTargets.Method | System.AttributeTargets.Parameter | System.AttributeTargets.Property, AllowMultiple=false, Inherited=true)>]
[<System.Diagnostics.Conditional("CONTRACTS_FULL")>]
type PureAttribute = class
    inherit Attribute
Public NotInheritable Class PureAttribute
Inherits Attribute
继承
PureAttribute
属性

注解

使用此特性标记的方法和类型可用于对方法的调用 System.Diagnostics.Contracts.ContractMethods and types that are marked with this attribute can be used in calls to System.Diagnostics.Contracts.Contract methods. 纯方法不会进行任何可见状态更改。Pure methods do not make any visible state changes. 当前的分析工具不会强制使用此属性;仅当确定方法是纯时,才应使用此属性。This attribute is not enforced by the current analysis tools; you should use this attribute only if you are sure that the methods are pure.

构造函数

PureAttribute()

初始化 PureAttribute 类的新实例。Initializes a new instance of the PureAttribute class.

属性

TypeId

在派生类中实现时,获取此 Attribute 的唯一标识符。When implemented in a derived class, gets a unique identifier for this Attribute.

(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。Returns a value that indicates whether this instance is equal to a specified object.

(继承自 Attribute)
GetHashCode()

返回此实例的哈希代码。Returns the hash code for this instance.

(继承自 Attribute)
GetType()

获取当前实例的 TypeGets the Type of the current instance.

(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。When overridden in a derived class, indicates whether the value of this instance is the default value for the derived class.

(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。When overridden in a derived class, returns a value that indicates whether this instance equals a specified object.

(继承自 Attribute)
MemberwiseClone()

创建当前 Object 的浅表副本。Creates a shallow copy of the current Object.

(继承自 Object)
ToString()

返回表示当前对象的字符串。Returns a string that represents the current object.

(继承自 Object)

显式接口实现

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

将一组名称映射为对应的一组调度标识符。Maps a set of names to a corresponding set of dispatch identifiers.

(继承自 Attribute)
_Attribute.GetTypeInfo(UInt32, UInt32, IntPtr)

检索对象的类型信息,然后可以使用该信息获取接口的类型信息。Retrieves the type information for an object, which can be used to get the type information for an interface.

(继承自 Attribute)
_Attribute.GetTypeInfoCount(UInt32)

检索对象提供的类型信息接口的数量(0 或 1)。Retrieves the number of type information interfaces that an object provides (either 0 or 1).

(继承自 Attribute)
_Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr)

提供对某一对象公开的属性和方法的访问。Provides access to properties and methods exposed by an object.

(继承自 Attribute)

适用于