MethodBuilder.SetImplementationFlags(MethodImplAttributes) 方法

定義

命名空間:

System.Reflection.Emit

組件:

System.Reflection.Emit.dll

來源:

MethodBuilder.cs

設定此方法的實作旗標。

public:
 void SetImplementationFlags(System::Reflection::MethodImplAttributes attributes);

public void SetImplementationFlags (System.Reflection.MethodImplAttributes attributes);

member this.SetImplementationFlags : System.Reflection.MethodImplAttributes -> unit

Public Sub SetImplementationFlags (attributes As MethodImplAttributes)

參數

attributes

MethodImplAttributes

要設定的實作旗標。

例外狀況

InvalidOperationException

先前已使用 CreateType() 建立包含類型。

-或-

針對於目前的方法，IsGenericMethod 屬性為 true，但 IsGenericMethodDefinition 屬性為 false。

範例

下列程式代碼範例說明方法的內容使用 SetImplementationFlags ，以描述方法主體中 MSIL 的實作。

array<Type^>^ temp0 = { int::typeid, int::typeid };
MethodBuilder^ myMthdBuilder = myTypeBuilder->DefineMethod( "MyMethod",
                               MethodAttributes::Public,
                               CallingConventions::HasThis,
                               int::typeid,
                               temp0 );

// Specifies that the dynamic method declared above has a an MSIL implementation,
// is managed, synchronized (single-threaded) through the body, and that it
// cannot be inlined.

myMthdBuilder->SetImplementationFlags( (MethodImplAttributes)(
                                        MethodImplAttributes::IL |
                                        MethodImplAttributes::Managed |
                                        MethodImplAttributes::Synchronized |
                                        MethodImplAttributes::NoInlining) );

// Create an ILGenerator for the MethodBuilder and emit MSIL here ...

MethodBuilder myMthdBuilder = myTypeBuilder.DefineMethod("MyMethod",
                    MethodAttributes.Public,
                    CallingConventions.HasThis,
                    typeof(int),
                    new Type[] { typeof(int),
                             typeof(int) });	

// Specifies that the dynamic method declared above has a an MSIL implementation,
    // is managed, synchronized (single-threaded) through the body, and that it
// cannot be inlined.

myMthdBuilder.SetImplementationFlags(MethodImplAttributes.IL |
                     MethodImplAttributes.Managed |
                     MethodImplAttributes.Synchronized |
                     MethodImplAttributes.NoInlining);

// Create an ILGenerator for the MethodBuilder and emit MSIL here ...

Dim myMthdBuilder As MethodBuilder = myTypeBuilder.DefineMethod("MyMethod", _
                 MethodAttributes.Public, _
                 CallingConventions.HasThis, _
                 GetType(Integer), _
                 New Type() {GetType(Integer), GetType(Integer)})

' Specifies that the dynamic method declared above has a an MSIL implementation,
' is managed, synchronized (single-threaded) through the body, and that it 
' cannot be inlined.

myMthdBuilder.SetImplementationFlags((MethodImplAttributes.IL Or _
                  MethodImplAttributes.Managed Or _
                  MethodImplAttributes.Synchronized Or _
                  MethodImplAttributes.NoInlining))

' Create an ILGenerator for the MethodBuilder and emit MSIL here ...

備註

當您將 方法與 SetCustomAttribute 方法搭配使用SetImplementationFlags時，請注意潛在的互動。 例如，使用 SetCustomAttribute 方法來新增 DllImportAttribute 屬性也會設定 MethodImplAttributes.PreserveSig 旗標。 如果您後續呼叫 SetImplementationFlags 方法，則會 PreserveSig 覆寫 旗標。 避免這種情形的做法有二種：

• SetImplementationFlags呼叫 方法之前，請先呼叫 SetCustomAttribute 方法。 方法 SetCustomAttribute 一律會遵守現有的方法實作旗標。

• 當您設定實作旗標時，請呼叫 GetMethodImplementationFlags 方法來擷取現有的旗標、使用位 OR 來新增旗標，然後呼叫 SetImplementationFlags 方法。