MethodBuilder.CreateMethodBody(Byte[], Int32) Yöntem

Tanım

Ad Alanı:

System.Reflection.Emit

Bütünleştirilmiş Kod:

mscorlib.dll

Microsoft ara dili (MSIL) yönergelerinin sağlanan bayt dizisini kullanarak yöntemin gövdesini oluşturur.

public:
 void CreateMethodBody(cli::array <System::Byte> ^ il, int count);

public void CreateMethodBody (byte[] il, int count);

member this.CreateMethodBody : byte[] * int -> unit

Public Sub CreateMethodBody (il As Byte(), count As Integer)

Parametreler

il

Byte[]

Geçerli MSIL yönergelerini içeren bir dizi. Bu parametre ise null, yöntemin gövdesi temizlenir.

count

Int32

MSIL dizisindeki geçerli bayt sayısı. MSIL ise bu değer yoksayılır null.

Özel durumlar

ArgumentOutOfRangeException

count, sağlanan MSIL yönerge dizisinin dizin aralığı içinde değildir ve il değildirnull.

InvalidOperationException

İçeren tür daha önce kullanılarak CreateType()oluşturulmuştur.

-veya-

Bu yöntem daha önce bu MethodBuilder yöntemde olmayan nullbir il bağımsız değişkenle çağrıldı.

-veya-

Geçerli yöntem IsGenericMethod için özelliği şeklindedir true, ancak IsGenericMethodDefinition özelliği şeklindedir false.

Örnekler

Aşağıda sağlanan örnekte, kullanılarak CreateMethodBodyişlem kodu aracılığıyla iki tamsayı ekleyen basit bir yöntem oluşturulur.

using namespace System;
using namespace System::Threading;
using namespace System::Reflection;
using namespace System::Reflection::Emit;
class MethodBodyDemo
{
public:

   // This class will demonstrate how to create a method body using
   // the MethodBuilder::CreateMethodBody(Byte[], int) method.
   static Type^ BuildDynType()
   {
      Type^ addType = nullptr;
      AppDomain^ currentDom = Thread::GetDomain();
      AssemblyName^ myAsmName = gcnew AssemblyName;
      myAsmName->Name = "MyDynamicAssembly";
      AssemblyBuilder^ myAsmBldr = currentDom->DefineDynamicAssembly( myAsmName, AssemblyBuilderAccess::RunAndSave );
      
      // The dynamic assembly space has been created.  Next, create a module
      // within it.  The type Point will be reflected into this module.
      ModuleBuilder^ myModuleBldr = myAsmBldr->DefineDynamicModule( "MyModule" );
      TypeBuilder^ myTypeBldr = myModuleBldr->DefineType( "Adder" );
      array<Type^>^temp0 = {int::typeid,int::typeid};
      MethodBuilder^ myMthdBldr = myTypeBldr->DefineMethod( "DoAdd", static_cast<MethodAttributes>(MethodAttributes::Public | MethodAttributes::Static), int::typeid, temp0 );
      
      // Build the array of Bytes holding the MSIL instructions.
      
      /* 02h is the opcode for ldarg.0 */
      /* 03h is the opcode for ldarg.1 */
      /* 58h is the opcode for add     */
      /* 2Ah is the opcode for ret     */
      array<Byte>^temp1 = {0x02,0x03,0x58,0x2A};
      array<Byte>^ILcodes = temp1;
      myMthdBldr->CreateMethodBody( ILcodes, ILcodes->Length );
      addType = myTypeBldr->CreateType();
      return addType;
   }

};

int main()
{
   Type^ myType = MethodBodyDemo::BuildDynType();
   Console::WriteLine( "---" );
   Console::Write( "Enter the first integer to add: " );
   int aVal = Convert::ToInt32( Console::ReadLine() );
   Console::Write( "Enter the second integer to add: " );
   int bVal = Convert::ToInt32( Console::ReadLine() );
   Object^ adderInst = Activator::CreateInstance( myType, gcnew array<Object^>(0) );
   array<Object^>^temp1 = {aVal,bVal};
   Console::WriteLine( "The value of adding {0} to {1} is: {2}.", aVal, bVal, myType->InvokeMember( "DoAdd", BindingFlags::InvokeMethod, nullptr, adderInst, temp1 ) );
}

using System;
using System.Threading;
using System.Reflection;
using System.Reflection.Emit;

class MethodBodyDemo {
// This class will demonstrate how to create a method body using
// the MethodBuilder.CreateMethodBody(byte[], int) method.

   public static Type BuildDynType() {

    Type addType = null;

        AppDomain currentDom = Thread.GetDomain();

        AssemblyName myAsmName = new AssemblyName();
    myAsmName.Name = "MyDynamicAssembly";

        AssemblyBuilder myAsmBldr = currentDom.DefineDynamicAssembly(
                           myAsmName,
                           AssemblyBuilderAccess.RunAndSave);

        // The dynamic assembly space has been created.  Next, create a module
        // within it.  The type Point will be reflected into this module.

    ModuleBuilder myModuleBldr = myAsmBldr.DefineDynamicModule("MyModule");

    TypeBuilder myTypeBldr =  myModuleBldr.DefineType("Adder");

        MethodBuilder myMthdBldr = myTypeBldr.DefineMethod("DoAdd",
                                MethodAttributes.Public |
                                MethodAttributes.Static,
                                typeof(int),
                                new Type[]
                                {typeof(int), typeof(int)});
        // Build the array of Bytes holding the MSIL instructions.

        byte[] ILcodes = new byte[] {
          0x02,   /* 02h is the opcode for ldarg.0 */
      0x03,   /* 03h is the opcode for ldarg.1 */
      0x58,   /* 58h is the opcode for add     */
      0x2A    /* 2Ah is the opcode for ret     */
    };
    
    myMthdBldr.CreateMethodBody(ILcodes, ILcodes.Length);

        addType = myTypeBldr.CreateType();

    return addType;
   }

   public static void Main() {

    Type myType = BuildDynType();
        Console.WriteLine("---");
    Console.Write("Enter the first integer to add: ");
        int aVal = Convert.ToInt32(Console.ReadLine());

        Console.Write("Enter the second integer to add: ");
        int bVal = Convert.ToInt32(Console.ReadLine());

        object adderInst = Activator.CreateInstance(myType, new object[0]);

    Console.WriteLine("The value of adding {0} to {1} is: {2}.",
               aVal, bVal,	
                   myType.InvokeMember("DoAdd",
                           BindingFlags.InvokeMethod,
                           null,
                           adderInst,
                           new object[] {aVal, bVal}));
   }
}

Imports System.Threading
Imports System.Reflection
Imports System.Reflection.Emit

 _

Class MethodBodyDemo
   
   ' This class will demonstrate how to create a method body using 
   ' the MethodBuilder.CreateMethodBody(byte[], int) method.

   Public Shared Function BuildDynType() As Type
      
      Dim addType As Type = Nothing
      
      Dim currentDom As AppDomain = Thread.GetDomain()
      
      Dim myAsmName As New AssemblyName()
      myAsmName.Name = "MyDynamicAssembly"
      
      Dim myAsmBldr As AssemblyBuilder = currentDom.DefineDynamicAssembly(myAsmName, _
                         AssemblyBuilderAccess.RunAndSave)
      
      ' The dynamic assembly space has been created.  Next, create a module
      ' within it.  The type Point will be reflected into this module.
      Dim myModuleBldr As ModuleBuilder = myAsmBldr.DefineDynamicModule("MyModule")
      
      Dim myTypeBldr As TypeBuilder = myModuleBldr.DefineType("Adder")
      
      Dim myMthdBldr As MethodBuilder = myTypeBldr.DefineMethod("DoAdd", _
                    MethodAttributes.Public Or MethodAttributes.Static, _
                        GetType(Integer), _
                    New Type() {GetType(Integer), GetType(Integer)})

      ' Build the array of Bytes holding the MSIL instructions.

      Dim ILcodes() As Byte = {&H2, &H3, &H58, &H2A}

      ' 02h is the opcode for ldarg.0 
      ' 03h is the opcode for ldarg.1 
      ' 58h is the opcode for add     
      ' 2Ah is the opcode for ret     
      
      myMthdBldr.CreateMethodBody(ILcodes, ILcodes.Length)
      
      addType = myTypeBldr.CreateType()
      
      Return addType

   End Function 'BuildDynType
   
   
   Public Shared Sub Main()
      
      Dim myType As Type = BuildDynType()
      Console.WriteLine("---")
      Console.Write("Enter the first integer to add: ")
      Dim aVal As Integer = Convert.ToInt32(Console.ReadLine())
      
      Console.Write("Enter the second integer to add: ")
      Dim bVal As Integer = Convert.ToInt32(Console.ReadLine())
      
      Dim adderInst As Object = Activator.CreateInstance(myType, New Object() {})
      
      Console.WriteLine("The value of adding {0} to {1} is: {2}.", _
             aVal, bVal, _
             myType.InvokeMember("DoAdd", _
                          BindingFlags.InvokeMethod, _
                          Nothing, _
                          adderInst, _
                          New Object() {aVal, bVal}))

   End Sub

End Class

Açıklamalar

Bu yöntem, yönteminin gövdesini, MSIL yönergelerini opcodes olarak içeren bir diziden iloluşturur. Geçerli MSIL bayt sayısı sayıya göre verilir.

Not

Bu şu anda tam olarak desteklenmiyor. Kullanıcı, belirteç düzeltmeleri ve özel durum işleyicilerinin konumunu sağlayamıyor.