ConstructorBuilder.GetILGenerator 메서드

참조

정의

네임스페이스:: System.Reflection.Emit

어셈블리:: System.Reflection.Emit.dll

어셈블리:: mscorlib.dll

어셈블리:: netstandard.dll

중요

일부 정보는 릴리스되기 전에 상당 부분 수정될 수 있는 시험판 제품과 관련이 있습니다. Microsoft는 여기에 제공된 정보에 대해 어떠한 명시적이거나 묵시적인 보증도 하지 않습니다.

이 생성자의 메서드 본문을 내보내는 데 사용할 수 있는 ILGenerator를 가져옵니다.

오버로드

GetILGenerator(Int32)	지정한 MSIL 스트림 크기를 가지며, 이 생성자에 대한 메서드 본문을 작성하는 데 사용할 수 있는 ILGenerator 개체를 가져옵니다.
GetILGenerator()	이 생성자에 대한 ILGenerator 를 가져옵니다.

GetILGenerator(Int32)

Source:: ConstructorBuilder.cs

Source:: ConstructorBuilder.cs

Source:: ConstructorBuilder.cs

지정한 MSIL 스트림 크기를 가지며, 이 생성자에 대한 메서드 본문을 작성하는 데 사용할 수 있는 ILGenerator 개체를 가져옵니다.

public:
 System::Reflection::Emit::ILGenerator ^ GetILGenerator(int streamSize);

public System.Reflection.Emit.ILGenerator GetILGenerator (int streamSize);

member this.GetILGenerator : int -> System.Reflection.Emit.ILGenerator

Public Function GetILGenerator (streamSize As Integer) As ILGenerator

매개 변수

streamSize: Int32

MSIL 스트림에 바이트의 크기입니다.

반환

ILGenerator

이 생성자에 대한 ILGenerator 입니다.

예외

InvalidOperationException

생성자는 매개 변수가 없는 생성자입니다.

또는

생성자에 메서드 본문이 없어야 함을 나타내는 MethodAttributes 또는 MethodImplAttributes 플래그가 있습니다.

설명

런타임은 기본 생성자에 대한 코드를 생성합니다. 따라서 매개 변수가 없는 생성자에 대한 를 ILGenerator 가져오려고 하면 예외가 throw됩니다.

적용 대상

GetILGenerator()

Source:: ConstructorBuilder.cs

Source:: ConstructorBuilder.cs

Source:: ConstructorBuilder.cs

이 생성자에 대한 ILGenerator 를 가져옵니다.

public:
 System::Reflection::Emit::ILGenerator ^ GetILGenerator();

public System.Reflection.Emit.ILGenerator GetILGenerator ();

member this.GetILGenerator : unit -> System.Reflection.Emit.ILGenerator

Public Function GetILGenerator () As ILGenerator

반환

ILGenerator

이 생성자에 대한 ILGenerator 개체입니다.

예외

InvalidOperationException

생성자는 매개 변수가 없는 생성자입니다.

또는

생성자에 메서드 본문이 없어야 함을 나타내는 MethodAttributes 또는 MethodImplAttributes 플래그가 있습니다.

예제

다음 코드 샘플에서는 메서드의 사용을 보여 줍니다 GetILGenerator .

using namespace System;
using namespace System::Threading;
using namespace System::Reflection;
using namespace System::Reflection::Emit;
Type^ DynamicPointTypeGen()
{
   Type^ pointType = nullptr;
   array<Type^>^temp0 = {int::typeid,int::typeid,int::typeid};
   array<Type^>^ctorParams = temp0;
   AppDomain^ myDomain = Thread::GetDomain();
   AssemblyName^ myAsmName = gcnew AssemblyName;
   myAsmName->Name = "MyDynamicAssembly";
   AssemblyBuilder^ myAsmBuilder = myDomain->DefineDynamicAssembly( myAsmName, AssemblyBuilderAccess::RunAndSave );
   ModuleBuilder^ pointModule = myAsmBuilder->DefineDynamicModule( "PointModule", "Point.dll" );
   TypeBuilder^ pointTypeBld = pointModule->DefineType( "Point", TypeAttributes::Public );
   FieldBuilder^ xField = pointTypeBld->DefineField( "x", int::typeid, FieldAttributes::Public );
   FieldBuilder^ yField = pointTypeBld->DefineField( "y", int::typeid, FieldAttributes::Public );
   FieldBuilder^ zField = pointTypeBld->DefineField( "z", int::typeid, FieldAttributes::Public );
   Type^ objType = Type::GetType( "System.Object" );
   ConstructorInfo^ objCtor = objType->GetConstructor( gcnew array<Type^>(0) );
   ConstructorBuilder^ pointCtor = pointTypeBld->DefineConstructor( MethodAttributes::Public, CallingConventions::Standard, ctorParams );
   ILGenerator^ ctorIL = pointCtor->GetILGenerator();
   
   // NOTE: ldarg.0 holds the "this" reference - ldarg.1, ldarg.2, and ldarg.3
   // hold the actual passed parameters. ldarg.0 is used by instance methods
   // to hold a reference to the current calling bject instance. Static methods
   // do not use arg.0, since they are not instantiated and hence no reference
   // is needed to distinguish them.
   ctorIL->Emit( OpCodes::Ldarg_0 );
   
   // Here, we wish to create an instance of System::Object by invoking its
   // constructor, as specified above.
   ctorIL->Emit( OpCodes::Call, objCtor );
   
   // Now, we'll load the current instance in arg 0, along
   // with the value of parameter "x" stored in arg 1, into stfld.
   ctorIL->Emit( OpCodes::Ldarg_0 );
   ctorIL->Emit( OpCodes::Ldarg_1 );
   ctorIL->Emit( OpCodes::Stfld, xField );
   
   // Now, we store arg 2 "y" in the current instance with stfld.
   ctorIL->Emit( OpCodes::Ldarg_0 );
   ctorIL->Emit( OpCodes::Ldarg_2 );
   ctorIL->Emit( OpCodes::Stfld, yField );
   
   // Last of all, arg 3 "z" gets stored in the current instance.
   ctorIL->Emit( OpCodes::Ldarg_0 );
   ctorIL->Emit( OpCodes::Ldarg_3 );
   ctorIL->Emit( OpCodes::Stfld, zField );
   
   // Our work complete, we return.
   ctorIL->Emit( OpCodes::Ret );
   
   // Now, let's create three very simple methods so we can see our fields.
   array<String^>^temp1 = {"GetX","GetY","GetZ"};
   array<String^>^mthdNames = temp1;
   System::Collections::IEnumerator^ myEnum = mthdNames->GetEnumerator();
   while ( myEnum->MoveNext() )
   {
      String^ mthdName = safe_cast<String^>(myEnum->Current);
      MethodBuilder^ getFieldMthd = pointTypeBld->DefineMethod( mthdName, MethodAttributes::Public, int::typeid, nullptr );
      ILGenerator^ mthdIL = getFieldMthd->GetILGenerator();
      mthdIL->Emit( OpCodes::Ldarg_0 );
      if ( mthdName->Equals( "GetX" ) )
            mthdIL->Emit( OpCodes::Ldfld, xField );
      else
      if ( mthdName->Equals( "GetY" ) )
            mthdIL->Emit( OpCodes::Ldfld, yField );
      else
      if ( mthdName->Equals( "GetZ" ) )
            mthdIL->Emit( OpCodes::Ldfld, zField );



      mthdIL->Emit( OpCodes::Ret );
   }

   pointType = pointTypeBld->CreateType();
   
   // Let's save it, just for posterity.
   myAsmBuilder->Save( "Point.dll" );
   return pointType;
}

int main()
{
   Type^ myDynamicType = nullptr;
   Object^ aPoint = nullptr;
   array<Type^>^temp2 = {int::typeid,int::typeid,int::typeid};
   array<Type^>^aPtypes = temp2;
   array<Object^>^temp3 = {4,5,6};
   array<Object^>^aPargs = temp3;
   
   // Call the  method to build our dynamic class.
   myDynamicType = DynamicPointTypeGen();
   Console::WriteLine( "Some information about my new Type '{0}':", myDynamicType->FullName );
   Console::WriteLine( "Assembly: '{0}'", myDynamicType->Assembly );
   Console::WriteLine( "Attributes: '{0}'", myDynamicType->Attributes );
   Console::WriteLine( "Module: '{0}'", myDynamicType->Module );
   Console::WriteLine( "Members: " );
   System::Collections::IEnumerator^ myEnum = myDynamicType->GetMembers()->GetEnumerator();
   while ( myEnum->MoveNext() )
   {
      MemberInfo^ member = safe_cast<MemberInfo^>(myEnum->Current);
      Console::WriteLine( "-- {0} {1};", member->MemberType, member->Name );
   }

   Console::WriteLine( "---" );
   
   // Let's take a look at the constructor we created.
   ConstructorInfo^ myDTctor = myDynamicType->GetConstructor( aPtypes );
   Console::WriteLine( "Constructor: {0};", myDTctor );
   Console::WriteLine( "---" );
   
   // Now, we get to use our dynamically-created class by invoking the constructor.
   aPoint = myDTctor->Invoke( aPargs );
   Console::WriteLine( "aPoint is type {0}.", aPoint->GetType() );
   
   // Finally, let's reflect on the instance of our new type - aPoint - and
   // make sure everything proceeded according to plan.
   Console::WriteLine( "aPoint.x = {0}", myDynamicType->InvokeMember( "GetX", BindingFlags::InvokeMethod, nullptr, aPoint, gcnew array<Object^>(0) ) );
   Console::WriteLine( "aPoint.y = {0}", myDynamicType->InvokeMember( "GetY", BindingFlags::InvokeMethod, nullptr, aPoint, gcnew array<Object^>(0) ) );
   Console::WriteLine( "aPoint.z = {0}", myDynamicType->InvokeMember( "GetZ", BindingFlags::InvokeMethod, nullptr, aPoint, gcnew array<Object^>(0) ) );
   
   // +++ OUTPUT +++
   // Some information about my new Type 'Point':
   // Assembly: 'MyDynamicAssembly, Version=0.0.0.0'
   // Attributes: 'AutoLayout, AnsiClass, NotPublic, Public'
   // Module: 'PointModule'
   // Members:
   // -- Field x;
   // -- Field y;
   // -- Field z;
   // -- Method GetHashCode;
   // -- Method Equals;
   // -- Method ToString;
   // -- Method GetType;
   // -- Constructor .ctor;
   // ---
   // Constructor: Void .ctor(Int32, Int32, Int32);
   // ---
   // aPoint is type Point.
   // aPoint.x = 4
   // aPoint.y = 5
   // aPoint.z = 6
}


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

class TestCtorBuilder {

    public static Type DynamicPointTypeGen() {
    
       Type pointType = null;
       Type[] ctorParams = new Type[] {typeof(int),
                        typeof(int),
                        typeof(int)};
    
       AppDomain myDomain = Thread.GetDomain();
       AssemblyName myAsmName = new AssemblyName();
       myAsmName.Name = "MyDynamicAssembly";
    
       AssemblyBuilder myAsmBuilder = myDomain.DefineDynamicAssembly(
                      myAsmName,
                      AssemblyBuilderAccess.RunAndSave);

       ModuleBuilder pointModule = myAsmBuilder.DefineDynamicModule("PointModule",
                                    "Point.dll");

       TypeBuilder pointTypeBld = pointModule.DefineType("Point",
                                      TypeAttributes.Public);

       FieldBuilder xField = pointTypeBld.DefineField("x", typeof(int),
                                                          FieldAttributes.Public);
       FieldBuilder yField = pointTypeBld.DefineField("y", typeof(int),
                                                          FieldAttributes.Public);
       FieldBuilder zField = pointTypeBld.DefineField("z", typeof(int),
                                                          FieldAttributes.Public);

           Type objType = Type.GetType("System.Object");
           ConstructorInfo objCtor = objType.GetConstructor(new Type[0]);

       ConstructorBuilder pointCtor = pointTypeBld.DefineConstructor(
                      MethodAttributes.Public,
                      CallingConventions.Standard,
                      ctorParams);
       ILGenerator ctorIL = pointCtor.GetILGenerator();

       // NOTE: ldarg.0 holds the "this" reference - ldarg.1, ldarg.2, and ldarg.3
       // hold the actual passed parameters. ldarg.0 is used by instance methods
       // to hold a reference to the current calling object instance. Static methods
       // do not use arg.0, since they are not instantiated and hence no reference
       // is needed to distinguish them.

           ctorIL.Emit(OpCodes.Ldarg_0);

       // Here, we wish to create an instance of System.Object by invoking its
       // constructor, as specified above.

           ctorIL.Emit(OpCodes.Call, objCtor);

       // Now, we'll load the current instance ref in arg 0, along
       // with the value of parameter "x" stored in arg 1, into stfld.

           ctorIL.Emit(OpCodes.Ldarg_0);
           ctorIL.Emit(OpCodes.Ldarg_1);
           ctorIL.Emit(OpCodes.Stfld, xField);

       // Now, we store arg 2 "y" in the current instance with stfld.

           ctorIL.Emit(OpCodes.Ldarg_0);
           ctorIL.Emit(OpCodes.Ldarg_2);
           ctorIL.Emit(OpCodes.Stfld, yField);

       // Last of all, arg 3 "z" gets stored in the current instance.

           ctorIL.Emit(OpCodes.Ldarg_0);
           ctorIL.Emit(OpCodes.Ldarg_3);
           ctorIL.Emit(OpCodes.Stfld, zField);

           // Our work complete, we return.

       ctorIL.Emit(OpCodes.Ret);

       // Now, let's create three very simple methods so we can see our fields.

       string[] mthdNames = new string[] {"GetX", "GetY", "GetZ"};

           foreach (string mthdName in mthdNames) {
              MethodBuilder getFieldMthd = pointTypeBld.DefineMethod(
                           mthdName,
                           MethodAttributes.Public,
                                           typeof(int),
                                           null);
          ILGenerator mthdIL = getFieldMthd.GetILGenerator();
    
          mthdIL.Emit(OpCodes.Ldarg_0);
          switch (mthdName) {
             case "GetX": mthdIL.Emit(OpCodes.Ldfld, xField);
                  break;
             case "GetY": mthdIL.Emit(OpCodes.Ldfld, yField);
                  break;
             case "GetZ": mthdIL.Emit(OpCodes.Ldfld, zField);
                  break;
          }
          mthdIL.Emit(OpCodes.Ret);
           }
       // Finally, we create the type.

       pointType = pointTypeBld.CreateType();

       // Let's save it, just for posterity.
    
       myAsmBuilder.Save("Point.dll");
    
       return pointType;
    }

    public static void Main() {
    
       Type myDynamicType = null;
           object aPoint = null;
       Type[] aPtypes = new Type[] {typeof(int), typeof(int), typeof(int)};
           object[] aPargs = new object[] {4, 5, 6};
    
       // Call the  method to build our dynamic class.

       myDynamicType = DynamicPointTypeGen();

       Console.WriteLine("Some information about my new Type '{0}':",
                  myDynamicType.FullName);
       Console.WriteLine("Assembly: '{0}'", myDynamicType.Assembly);
       Console.WriteLine("Attributes: '{0}'", myDynamicType.Attributes);
       Console.WriteLine("Module: '{0}'", myDynamicType.Module);
       Console.WriteLine("Members: ");
       foreach (MemberInfo member in myDynamicType.GetMembers()) {
        Console.WriteLine("-- {0} {1};", member.MemberType, member.Name);
       }

           Console.WriteLine("---");

       // Let's take a look at the constructor we created.

       ConstructorInfo myDTctor = myDynamicType.GetConstructor(aPtypes);
           Console.WriteLine("Constructor: {0};", myDTctor.ToString());

           Console.WriteLine("---");
    
           // Now, we get to use our dynamically-created class by invoking the constructor.

       aPoint = myDTctor.Invoke(aPargs);
           Console.WriteLine("aPoint is type {0}.", aPoint.GetType());

       // Finally, let's reflect on the instance of our new type - aPoint - and
       // make sure everything proceeded according to plan.

       Console.WriteLine("aPoint.x = {0}",
                 myDynamicType.InvokeMember("GetX",
                                BindingFlags.InvokeMethod,
                            null,
                            aPoint,
                            new object[0]));
       Console.WriteLine("aPoint.y = {0}",
                 myDynamicType.InvokeMember("GetY",
                                BindingFlags.InvokeMethod,
                            null,
                            aPoint,
                            new object[0]));
       Console.WriteLine("aPoint.z = {0}",
                 myDynamicType.InvokeMember("GetZ",
                                BindingFlags.InvokeMethod,
                            null,
                            aPoint,
                            new object[0]));

       // +++ OUTPUT +++
       // Some information about my new Type 'Point':
       // Assembly: 'MyDynamicAssembly, Version=0.0.0.0'
       // Attributes: 'AutoLayout, AnsiClass, NotPublic, Public'
       // Module: 'PointModule'
       // Members:
       // -- Field x;
       // -- Field y;
       // -- Field z;
           // -- Method GetHashCode;
           // -- Method Equals;
           // -- Method ToString;
           // -- Method GetType;
           // -- Constructor .ctor;
       // ---
       // Constructor: Void .ctor(Int32, Int32, Int32);
       // ---
       // aPoint is type Point.
       // aPoint.x = 4
       // aPoint.y = 5
       // aPoint.z = 6
    }
}


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

 _

Class TestCtorBuilder
   
   
   Public Shared Function DynamicPointTypeGen() As Type
      
      Dim pointType As Type = Nothing
      Dim ctorParams() As Type = {GetType(Integer), GetType(Integer), GetType(Integer)}
      
      Dim myDomain As AppDomain = Thread.GetDomain()
      Dim myAsmName As New AssemblyName()
      myAsmName.Name = "MyDynamicAssembly"
      
      Dim myAsmBuilder As AssemblyBuilder = myDomain.DefineDynamicAssembly(myAsmName, AssemblyBuilderAccess.RunAndSave)
      
      Dim pointModule As ModuleBuilder = myAsmBuilder.DefineDynamicModule("PointModule", "Point.dll")
      
      Dim pointTypeBld As TypeBuilder = pointModule.DefineType("Point", TypeAttributes.Public)
      
      Dim xField As FieldBuilder = pointTypeBld.DefineField("x", GetType(Integer), FieldAttributes.Public)
      Dim yField As FieldBuilder = pointTypeBld.DefineField("y", GetType(Integer), FieldAttributes.Public)
      Dim zField As FieldBuilder = pointTypeBld.DefineField("z", GetType(Integer), FieldAttributes.Public)
      
      Dim objType As Type = Type.GetType("System.Object")
      Dim objCtor As ConstructorInfo = objType.GetConstructor(New Type() {})
      
      Dim pointCtor As ConstructorBuilder = pointTypeBld.DefineConstructor(MethodAttributes.Public, CallingConventions.Standard, ctorParams)
      Dim ctorIL As ILGenerator = pointCtor.GetILGenerator()
      
      ' NOTE: ldarg.0 holds the "this" reference - ldarg.1, ldarg.2, and ldarg.3
      ' hold the actual passed parameters. ldarg.0 is used by instance methods
      ' to hold a reference to the current calling object instance. Static methods
      ' do not use arg.0, since they are not instantiated and hence no reference
      ' is needed to distinguish them. 
      ctorIL.Emit(OpCodes.Ldarg_0)
      
      ' Here, we wish to create an instance of System.Object by invoking its
      ' constructor, as specified above.
      ctorIL.Emit(OpCodes.Call, objCtor)
      
      ' Now, we'll load the current instance ref in arg 0, along
      ' with the value of parameter "x" stored in arg 1, into stfld.
      ctorIL.Emit(OpCodes.Ldarg_0)
      ctorIL.Emit(OpCodes.Ldarg_1)
      ctorIL.Emit(OpCodes.Stfld, xField)
      
      ' Now, we store arg 2 "y" in the current instance with stfld.
      ctorIL.Emit(OpCodes.Ldarg_0)
      ctorIL.Emit(OpCodes.Ldarg_2)
      ctorIL.Emit(OpCodes.Stfld, yField)
      
      ' Last of all, arg 3 "z" gets stored in the current instance.
      ctorIL.Emit(OpCodes.Ldarg_0)
      ctorIL.Emit(OpCodes.Ldarg_3)
      ctorIL.Emit(OpCodes.Stfld, zField)
      
      ' Our work complete, we return.
      ctorIL.Emit(OpCodes.Ret)
      
      ' Now, let's create three very simple methods so we can see our fields.
      Dim mthdNames() As String = {"GetX", "GetY", "GetZ"}
      
      Dim mthdName As String
      For Each mthdName In  mthdNames
         Dim getFieldMthd As MethodBuilder = pointTypeBld.DefineMethod(mthdName, MethodAttributes.Public, GetType(Integer), Nothing)
         Dim mthdIL As ILGenerator = getFieldMthd.GetILGenerator()
         
         mthdIL.Emit(OpCodes.Ldarg_0)
         Select Case mthdName
            Case "GetX"
               mthdIL.Emit(OpCodes.Ldfld, xField)
            Case "GetY"
               mthdIL.Emit(OpCodes.Ldfld, yField)
            Case "GetZ"
               mthdIL.Emit(OpCodes.Ldfld, zField)
         End Select
         
         mthdIL.Emit(OpCodes.Ret)
      Next mthdName 
      ' Finally, we create the type.
      pointType = pointTypeBld.CreateType()
      
      ' Let's save it, just for posterity.
      myAsmBuilder.Save("Point.dll")
      
      Return pointType
   End Function 'DynamicPointTypeGen
    
   
   Public Shared Sub Main()
      
      Dim myDynamicType As Type = Nothing
      Dim aPoint As Object = Nothing
      Dim aPtypes() As Type = {GetType(Integer), GetType(Integer), GetType(Integer)}
      Dim aPargs() As Object = {4, 5, 6}
      
      ' Call the  method to build our dynamic class.
      myDynamicType = DynamicPointTypeGen()
      
      Console.WriteLine("Some information about my new Type '{0}':", myDynamicType.FullName)
      Console.WriteLine("Assembly: '{0}'", myDynamicType.Assembly)
      Console.WriteLine("Attributes: '{0}'", myDynamicType.Attributes)
      Console.WriteLine("Module: '{0}'", myDynamicType.Module)
      Console.WriteLine("Members: ")
      Dim member As MemberInfo
      For Each member In  myDynamicType.GetMembers()
         Console.WriteLine("-- {0} {1};", member.MemberType, member.Name)
      Next member
      
      Console.WriteLine("---")
      
      ' Let's take a look at the constructor we created.
      Dim myDTctor As ConstructorInfo = myDynamicType.GetConstructor(aPtypes)
      Console.WriteLine("Constructor: {0};", myDTctor.ToString())
      
      Console.WriteLine("---")
      
      ' Now, we get to use our dynamically-created class by invoking the constructor. 
      aPoint = myDTctor.Invoke(aPargs)
      Console.WriteLine("aPoint is type {0}.", aPoint.GetType())
      
      
      ' Finally, let's reflect on the instance of our new type - aPoint - and
      ' make sure everything proceeded according to plan.
      Console.WriteLine("aPoint.x = {0}", myDynamicType.InvokeMember("GetX", BindingFlags.InvokeMethod, Nothing, aPoint, New Object() {}))
      Console.WriteLine("aPoint.y = {0}", myDynamicType.InvokeMember("GetY", BindingFlags.InvokeMethod, Nothing, aPoint, New Object() {}))
      Console.WriteLine("aPoint.z = {0}", myDynamicType.InvokeMember("GetZ", BindingFlags.InvokeMethod, Nothing, aPoint, New Object() {}))
   End Sub
End Class



' +++ OUTPUT +++
' Some information about my new Type 'Point':
' Assembly: 'MyDynamicAssembly, Version=0.0.0.0'
' Attributes: 'AutoLayout, AnsiClass, NotPublic, Public'
' Module: 'PointModule'
' Members: 
' -- Field x;
' -- Field y;
' -- Field z;
' -- Method GetHashCode;
' -- Method Equals;
' -- Method ToString;
' -- Method GetType;
' -- Constructor .ctor;
' ---
' Constructor: Void .ctor(Int32, Int32, Int32);
' ---
' aPoint is type Point.
' aPoint.x = 4
' aPoint.y = 5
' aPoint.z = 6

설명

런타임은 기본 생성자에 대한 코드를 생성합니다. 따라서 를 가져오 ILGenerator려고 하면 예외가 throw됩니다.

적용 대상

ConstructorBuilder.GetILGenerator 메서드

정의

오버로드

GetILGenerator(Int32)

매개 변수

반환

예외

설명

적용 대상

GetILGenerator()

반환

예외

예제

설명

적용 대상

피드백

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