AssemblyBuilder.Save Metoda

Odwołanie

Definicja

Przestrzeń nazw:: System.Reflection.Emit

Zestaw:: mscorlib.dll

Ważne

Niektóre informacje odnoszą się do produktu w wersji wstępnej, który może zostać znacząco zmodyfikowany przed wydaniem. Firma Microsoft nie udziela żadnych gwarancji, jawnych lub domniemanych, w odniesieniu do informacji podanych w tym miejscu.

Zapisuje ten dynamiczny zestaw na dysku.

Przeciążenia

Save(String)	Zapisuje ten dynamiczny zestaw na dysku.
Save(String, PortableExecutableKinds, ImageFileMachine)	Zapisuje ten dynamiczny zestaw na dysku, określając charakter kodu w plikach wykonywalnych zestawu i platformie docelowej.

Save(String)

Źródło:: AssemblyBuilder.cs

Zapisuje ten dynamiczny zestaw na dysku.

public:
 void Save(System::String ^ assemblyFileName);

public void Save (string assemblyFileName);

member this.Save : string -> unit

Public Sub Save (assemblyFileName As String)

Parametry

assemblyFileName: String

Nazwa pliku zestawu.

Wyjątki

ArgumentException

Długość assemblyFileName to 0.

-lub-

W zestawie znajdują się co najmniej dwa pliki zasobów modułów o tej samej nazwie.

-lub-

Katalog docelowy zestawu jest nieprawidłowy.

-lub-

assemblyFileName nie jest prostą nazwą pliku (na przykład ma składnik katalogu lub dysku) lub więcej niż jeden niezarządzany zasób, w tym zasób informacji o wersji, został zdefiniowany w tym zestawie.

-lub-

Ciąg CultureInfo w pliku AssemblyCultureAttribute nie jest prawidłowym ciągiem i DefineVersionInfoResource(String, String, String, String, String) został wywołany przed wywołaniem tej metody.

ArgumentNullException

assemblyFileName to null.

InvalidOperationException

Ten zestaw został zapisany wcześniej.

-lub-

Ten zestaw ma dostęp RunAssemblyBuilderAccess

IOException

Podczas zapisywania występuje błąd wyjściowy.

NotSupportedException

CreateType() nie został wywołany dla żadnego z typów w modułach zestawu do zapisania na dysku.

Przykłady

Poniższy przykładowy kod tworzy zestaw dynamiczny, a następnie utrwala go na dysku lokalnym przy użyciu polecenia Save.

using namespace System;
using namespace System::Text;
using namespace System::Threading;
using namespace System::Reflection;
using namespace System::Reflection::Emit;

// The Point class is the class we will reflect on and copy into our
// dynamic assembly. The public static function PointMain() will be used
// as our entry point.
//
// We are constructing the type seen here dynamically, and will write it
// out into a .exe file for later execution from the command-line.
// ---
// __gc class Point {
// 
// private:
//    int  x;
//    int  y;
// 
// public:
//    Point(int ix, int iy) {
// 
//       this->x = ix;
//       this->y = iy;
// 
//    }
// 
//    int DotProduct (Point* p) {
// 
//       return ((this->x * p->x) + (this->y * p->y));
// 
//   }
// 
//    static void PointMain() {
// 
//       Console::Write(S"Enter the 'x' value for point 1: ");
//       int x1 = Convert::ToInt32(Console::ReadLine());
// 
//       Console::Write(S"Enter the 'y' value for point 1: ");
//       int y1 = Convert::ToInt32(Console::ReadLine());
// 
//       Console::Write(S"Enter the 'x' value for point 2: ");
//       int x2 = Convert::ToInt32(Console::ReadLine());
// 
//       Console::Write(S"Enter the 'y' value for point 2: ");
//       int y2 = Convert::ToInt32(Console::ReadLine());
// 
//       Point* p1 = new Point(x1, y1);
//       Point* p2 = new Point(x2, y2);
// 
//       Console::WriteLine(S"( {0}, {1}) . ( {2}, {3}) = {4}.",
//          __box(x1), __box(y1), __box(x2), __box(y2), p1->DotProduct(p2));
// 
//    }
// 
// };
// ---
Type^ BuildDynAssembly()
{
   Type^ pointType = nullptr;
   AppDomain^ currentDom = Thread::GetDomain();
   Console::Write( "Please enter a name for your new assembly: " );
   StringBuilder^ asmFileNameBldr = gcnew StringBuilder;
   asmFileNameBldr->Append( Console::ReadLine() );
   asmFileNameBldr->Append( ".exe" );
   String^ asmFileName = asmFileNameBldr->ToString();
   AssemblyName^ myAsmName = gcnew AssemblyName;
   myAsmName->Name = "MyDynamicAssembly";
   AssemblyBuilder^ myAsmBldr = currentDom->DefineDynamicAssembly( myAsmName, AssemblyBuilderAccess::RunAndSave );
   
   // We've created a dynamic assembly space - now, we need to create a module
   // within it to reflect the type Point into.
   ModuleBuilder^ myModuleBldr = myAsmBldr->DefineDynamicModule( asmFileName, asmFileName );
   TypeBuilder^ myTypeBldr = myModuleBldr->DefineType( "Point" );
   FieldBuilder^ xField = myTypeBldr->DefineField( "x", int::typeid, FieldAttributes::Private );
   FieldBuilder^ yField = myTypeBldr->DefineField( "y", int::typeid, FieldAttributes::Private );
   
   // Build the constructor.
   Type^ objType = Type::GetType( "System.Object" );
   ConstructorInfo^ objCtor = objType->GetConstructor( gcnew array<Type^>(0) );
   array<Type^>^temp4 = {int::typeid,int::typeid};
   array<Type^>^ctorParams = temp4;
   ConstructorBuilder^ pointCtor = myTypeBldr->DefineConstructor( MethodAttributes::Public, CallingConventions::Standard, ctorParams );
   ILGenerator^ ctorIL = pointCtor->GetILGenerator();
   ctorIL->Emit( OpCodes::Ldarg_0 );
   ctorIL->Emit( OpCodes::Call, objCtor );
   ctorIL->Emit( OpCodes::Ldarg_0 );
   ctorIL->Emit( OpCodes::Ldarg_1 );
   ctorIL->Emit( OpCodes::Stfld, xField );
   ctorIL->Emit( OpCodes::Ldarg_0 );
   ctorIL->Emit( OpCodes::Ldarg_2 );
   ctorIL->Emit( OpCodes::Stfld, yField );
   ctorIL->Emit( OpCodes::Ret );
   
   // Build the DotProduct method.
   Console::WriteLine( "Constructor built." );
   array<Type^>^temp0 = {myTypeBldr};
   MethodBuilder^ pointDPBldr = myTypeBldr->DefineMethod( "DotProduct", MethodAttributes::Public, int::typeid, temp0 );
   ILGenerator^ dpIL = pointDPBldr->GetILGenerator();
   dpIL->Emit( OpCodes::Ldarg_0 );
   dpIL->Emit( OpCodes::Ldfld, xField );
   dpIL->Emit( OpCodes::Ldarg_1 );
   dpIL->Emit( OpCodes::Ldfld, xField );
   dpIL->Emit( OpCodes::Mul_Ovf_Un );
   dpIL->Emit( OpCodes::Ldarg_0 );
   dpIL->Emit( OpCodes::Ldfld, yField );
   dpIL->Emit( OpCodes::Ldarg_1 );
   dpIL->Emit( OpCodes::Ldfld, yField );
   dpIL->Emit( OpCodes::Mul_Ovf_Un );
   dpIL->Emit( OpCodes::Add_Ovf_Un );
   dpIL->Emit( OpCodes::Ret );
   
   // Build the PointMain method.
   Console::WriteLine( "DotProduct built." );
   MethodBuilder^ pointMainBldr = myTypeBldr->DefineMethod( "PointMain", static_cast<MethodAttributes>(MethodAttributes::Public | MethodAttributes::Static), void::typeid, nullptr );
   pointMainBldr->InitLocals = true;
   ILGenerator^ pmIL = pointMainBldr->GetILGenerator();
   
   // We have four methods that we wish to call, and must represent as
   // MethodInfo tokens:
   // - void Console::WriteLine(String*)
   // - String* Console::ReadLine()
   // - int Convert::Int32(String*)
   // - void Console::WriteLine(String*, Object*[])
   array<Type^>^temp1 = {String::typeid};
   MethodInfo^ writeMI = Console::typeid->GetMethod( "Write", temp1 );
   MethodInfo^ readLineMI = Console::typeid->GetMethod( "ReadLine", gcnew array<Type^>(0) );
   array<Type^>^temp2 = {String::typeid};
   MethodInfo^ convertInt32MI = Convert::typeid->GetMethod( "ToInt32", temp2 );
   array<Type^>^temp5 = {String::typeid,array<Object^>::typeid};
   array<Type^>^wlParams = temp5;
   MethodInfo^ writeLineMI = Console::typeid->GetMethod( "WriteLine", wlParams );
   
   // Although we could just refer to the local variables by
   // index (short ints for Ldloc/Stloc, bytes for LdLoc_S/Stloc_S),
   // this time, we'll use LocalBuilders for clarity and to
   // demonstrate their usage and syntax.
   LocalBuilder^ x1LB = pmIL->DeclareLocal( int::typeid );
   LocalBuilder^ y1LB = pmIL->DeclareLocal( int::typeid );
   LocalBuilder^ x2LB = pmIL->DeclareLocal( int::typeid );
   LocalBuilder^ y2LB = pmIL->DeclareLocal( int::typeid );
   LocalBuilder^ point1LB = pmIL->DeclareLocal( myTypeBldr );
   LocalBuilder^ point2LB = pmIL->DeclareLocal( myTypeBldr );
   LocalBuilder^ tempObjArrLB = pmIL->DeclareLocal( array<Object^>::typeid );
   pmIL->Emit( OpCodes::Ldstr, "Enter the 'x' value for point 1: " );
   pmIL->EmitCall( OpCodes::Call, writeMI, nullptr );
   pmIL->EmitCall( OpCodes::Call, readLineMI, nullptr );
   pmIL->EmitCall( OpCodes::Call, convertInt32MI, nullptr );
   pmIL->Emit( OpCodes::Stloc, x1LB );
   pmIL->Emit( OpCodes::Ldstr, "Enter the 'y' value for point 1: " );
   pmIL->EmitCall( OpCodes::Call, writeMI, nullptr );
   pmIL->EmitCall( OpCodes::Call, readLineMI, nullptr );
   pmIL->EmitCall( OpCodes::Call, convertInt32MI, nullptr );
   pmIL->Emit( OpCodes::Stloc, y1LB );
   pmIL->Emit( OpCodes::Ldstr, "Enter the 'x' value for point 2: " );
   pmIL->EmitCall( OpCodes::Call, writeMI, nullptr );
   pmIL->EmitCall( OpCodes::Call, readLineMI, nullptr );
   pmIL->EmitCall( OpCodes::Call, convertInt32MI, nullptr );
   pmIL->Emit( OpCodes::Stloc, x2LB );
   pmIL->Emit( OpCodes::Ldstr, "Enter the 'y' value for point 2: " );
   pmIL->EmitCall( OpCodes::Call, writeMI, nullptr );
   pmIL->EmitCall( OpCodes::Call, readLineMI, nullptr );
   pmIL->EmitCall( OpCodes::Call, convertInt32MI, nullptr );
   pmIL->Emit( OpCodes::Stloc, y2LB );
   pmIL->Emit( OpCodes::Ldloc, x1LB );
   pmIL->Emit( OpCodes::Ldloc, y1LB );
   pmIL->Emit( OpCodes::Newobj, pointCtor );
   pmIL->Emit( OpCodes::Stloc, point1LB );
   pmIL->Emit( OpCodes::Ldloc, x2LB );
   pmIL->Emit( OpCodes::Ldloc, y2LB );
   pmIL->Emit( OpCodes::Newobj, pointCtor );
   pmIL->Emit( OpCodes::Stloc, point2LB );
   pmIL->Emit( OpCodes::Ldstr, "( {0}, {1}) . ( {2}, {3}) = {4}." );
   pmIL->Emit( OpCodes::Ldc_I4_5 );
   pmIL->Emit( OpCodes::Newarr, Object::typeid );
   pmIL->Emit( OpCodes::Stloc, tempObjArrLB );
   pmIL->Emit( OpCodes::Ldloc, tempObjArrLB );
   pmIL->Emit( OpCodes::Ldc_I4_0 );
   pmIL->Emit( OpCodes::Ldloc, x1LB );
   pmIL->Emit( OpCodes::Box, int::typeid );
   pmIL->Emit( OpCodes::Stelem_Ref );
   pmIL->Emit( OpCodes::Ldloc, tempObjArrLB );
   pmIL->Emit( OpCodes::Ldc_I4_1 );
   pmIL->Emit( OpCodes::Ldloc, y1LB );
   pmIL->Emit( OpCodes::Box, int::typeid );
   pmIL->Emit( OpCodes::Stelem_Ref );
   pmIL->Emit( OpCodes::Ldloc, tempObjArrLB );
   pmIL->Emit( OpCodes::Ldc_I4_2 );
   pmIL->Emit( OpCodes::Ldloc, x2LB );
   pmIL->Emit( OpCodes::Box, int::typeid );
   pmIL->Emit( OpCodes::Stelem_Ref );
   pmIL->Emit( OpCodes::Ldloc, tempObjArrLB );
   pmIL->Emit( OpCodes::Ldc_I4_3 );
   pmIL->Emit( OpCodes::Ldloc, y2LB );
   pmIL->Emit( OpCodes::Box, int::typeid );
   pmIL->Emit( OpCodes::Stelem_Ref );
   pmIL->Emit( OpCodes::Ldloc, tempObjArrLB );
   pmIL->Emit( OpCodes::Ldc_I4_4 );
   pmIL->Emit( OpCodes::Ldloc, point1LB );
   pmIL->Emit( OpCodes::Ldloc, point2LB );
   pmIL->EmitCall( OpCodes::Callvirt, pointDPBldr, nullptr );
   pmIL->Emit( OpCodes::Box, int::typeid );
   pmIL->Emit( OpCodes::Stelem_Ref );
   pmIL->Emit( OpCodes::Ldloc, tempObjArrLB );
   pmIL->EmitCall( OpCodes::Call, writeLineMI, nullptr );
   pmIL->Emit( OpCodes::Ret );
   Console::WriteLine( "PointMain (entry point) built." );
   pointType = myTypeBldr->CreateType();
   Console::WriteLine( "Type completed." );
   myAsmBldr->SetEntryPoint( pointMainBldr );
   myAsmBldr->Save( asmFileName );
   Console::WriteLine( "Assembly saved as ' {0}'.", asmFileName );
   Console::WriteLine( "Type ' {0}' at the prompt to run your new dynamically generated dot product calculator.", asmFileName );
   
   // After execution, this program will have generated and written to disk,
   // in the directory you executed it from, a program named
   // <name_you_entered_here>.exe. You can run it by typing
   // the name you gave it during execution, in the same directory where
   // you executed this program.
   return pointType;
}

int main()
{
   Type^ myType = BuildDynAssembly();
   Console::WriteLine( "---" );
   
   // Let's invoke the type 'Point' created in our dynamic assembly.
   array<Object^>^temp3 = {nullptr,nullptr};
   Object^ ptInstance = Activator::CreateInstance( myType, temp3 );
   myType->InvokeMember( "PointMain", BindingFlags::InvokeMethod, nullptr, ptInstance, gcnew array<Object^>(0) );
}

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

// The Point class is the class we will reflect on and copy into our
// dynamic assembly. The public static function PointMain() will be used
// as our entry point.
//
// We are constructing the type seen here dynamically, and will write it
// out into a .exe file for later execution from the command-line.
// ---
// class Point {
//
//   private int x;
//   private int y;
//
//   public Point(int ix, int iy) {
//
//   	this.x = ix;
//    	this.y = iy;
//
//   }
//
//   public int DotProduct (Point p) {
//
//   	return ((this.x * p.x) + (this.y * p.y));
//
//   }
//
//   public static void PointMain() {
//
//     Console.Write("Enter the 'x' value for point 1: ");
//     int x1 = Convert.ToInt32(Console.ReadLine());
//
//     Console.Write("Enter the 'y' value for point 1: ");
//     int y1 = Convert.ToInt32(Console.ReadLine());
//
//     Console.Write("Enter the 'x' value for point 2: ");
//     int x2 = Convert.ToInt32(Console.ReadLine());
//
//     Console.Write("Enter the 'y' value for point 2: ");
//     int y2 = Convert.ToInt32(Console.ReadLine());
//
//     Point p1 = new Point(x1, y1);
//     Point p2 = new Point(x2, y2);
//
//     Console.WriteLine("({0}, {1}) . ({2}, {3}) = {4}.",
//		       x1, y1, x2, y2, p1.DotProduct(p2));
//
//   }
//
// }
// ---

class AssemblyBuilderDemo {

   public static Type BuildDynAssembly() {

        Type pointType = null;

        AppDomain currentDom = Thread.GetDomain();

    Console.Write("Please enter a name for your new assembly: ");
    StringBuilder asmFileNameBldr = new StringBuilder();
        asmFileNameBldr.Append(Console.ReadLine());
    asmFileNameBldr.Append(".exe");
    string asmFileName = asmFileNameBldr.ToString();	

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

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

        // We've created a dynamic assembly space - now, we need to create a module
        // within it to reflect the type Point into.

    ModuleBuilder myModuleBldr = myAsmBldr.DefineDynamicModule(asmFileName,
                                       asmFileName);

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

        FieldBuilder xField = myTypeBldr.DefineField("x", typeof(int),
                                                     FieldAttributes.Private);
        FieldBuilder yField = myTypeBldr.DefineField("y", typeof(int),
                                                     FieldAttributes.Private);

        // Build the constructor.

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

        Type[] ctorParams = new Type[] {typeof(int), typeof(int)};
        ConstructorBuilder pointCtor = myTypeBldr.DefineConstructor(
                                  MethodAttributes.Public,
                                  CallingConventions.Standard,
                                  ctorParams);
        ILGenerator ctorIL = pointCtor.GetILGenerator();
        ctorIL.Emit(OpCodes.Ldarg_0);
        ctorIL.Emit(OpCodes.Call, objCtor);
        ctorIL.Emit(OpCodes.Ldarg_0);
        ctorIL.Emit(OpCodes.Ldarg_1);
        ctorIL.Emit(OpCodes.Stfld, xField);
        ctorIL.Emit(OpCodes.Ldarg_0);
        ctorIL.Emit(OpCodes.Ldarg_2);
        ctorIL.Emit(OpCodes.Stfld, yField);
        ctorIL.Emit(OpCodes.Ret);

    // Build the DotProduct method.

        Console.WriteLine("Constructor built.");

    MethodBuilder pointDPBldr = myTypeBldr.DefineMethod("DotProduct",
                                MethodAttributes.Public,
                                typeof(int),
                                new Type[] {myTypeBldr});
                            
    ILGenerator dpIL = pointDPBldr.GetILGenerator();
    dpIL.Emit(OpCodes.Ldarg_0);
    dpIL.Emit(OpCodes.Ldfld, xField);
    dpIL.Emit(OpCodes.Ldarg_1);
    dpIL.Emit(OpCodes.Ldfld, xField);
    dpIL.Emit(OpCodes.Mul_Ovf_Un);
    dpIL.Emit(OpCodes.Ldarg_0);
    dpIL.Emit(OpCodes.Ldfld, yField);
    dpIL.Emit(OpCodes.Ldarg_1);
    dpIL.Emit(OpCodes.Ldfld, yField);
    dpIL.Emit(OpCodes.Mul_Ovf_Un);
    dpIL.Emit(OpCodes.Add_Ovf_Un);
    dpIL.Emit(OpCodes.Ret);

    // Build the PointMain method.

        Console.WriteLine("DotProduct built.");

    MethodBuilder pointMainBldr = myTypeBldr.DefineMethod("PointMain",
                                MethodAttributes.Public |
                                MethodAttributes.Static,
                                typeof(void),
                                null);
        pointMainBldr.InitLocals = true;
    ILGenerator pmIL = pointMainBldr.GetILGenerator();

    // We have four methods that we wish to call, and must represent as
    // MethodInfo tokens:
    // - void Console.WriteLine(string)
    // - string Console.ReadLine()
    // - int Convert.Int32(string)
    // - void Console.WriteLine(string, object[])

    MethodInfo writeMI = typeof(Console).GetMethod(
                         "Write",
                         new Type[] {typeof(string)});
    MethodInfo readLineMI = typeof(Console).GetMethod(
                            "ReadLine",
                            new Type[0]);
    MethodInfo convertInt32MI = typeof(Convert).GetMethod(
                            "ToInt32",
                                new Type[] {typeof(string)});
    Type[] wlParams = new Type[] {typeof(string), typeof(object[])};
    MethodInfo writeLineMI = typeof(Console).GetMethod(
                         "WriteLine",
                         wlParams);

    // Although we could just refer to the local variables by
    // index (short ints for Ldloc/Stloc, bytes for LdLoc_S/Stloc_S),
    // this time, we'll use LocalBuilders for clarity and to
    // demonstrate their usage and syntax.

    LocalBuilder x1LB = pmIL.DeclareLocal(typeof(int));				
    LocalBuilder y1LB = pmIL.DeclareLocal(typeof(int));				
    LocalBuilder x2LB = pmIL.DeclareLocal(typeof(int));				
    LocalBuilder y2LB = pmIL.DeclareLocal(typeof(int));				
    LocalBuilder point1LB = pmIL.DeclareLocal(myTypeBldr);				
    LocalBuilder point2LB = pmIL.DeclareLocal(myTypeBldr);				
    LocalBuilder tempObjArrLB = pmIL.DeclareLocal(typeof(object[]));				

    pmIL.Emit(OpCodes.Ldstr, "Enter the 'x' value for point 1: ");	
    pmIL.EmitCall(OpCodes.Call, writeMI, null);
    pmIL.EmitCall(OpCodes.Call, readLineMI, null);
    pmIL.EmitCall(OpCodes.Call, convertInt32MI, null);
    pmIL.Emit(OpCodes.Stloc, x1LB);

    pmIL.Emit(OpCodes.Ldstr, "Enter the 'y' value for point 1: ");	
    pmIL.EmitCall(OpCodes.Call, writeMI, null);
    pmIL.EmitCall(OpCodes.Call, readLineMI, null);
    pmIL.EmitCall(OpCodes.Call, convertInt32MI, null);
    pmIL.Emit(OpCodes.Stloc, y1LB);

    pmIL.Emit(OpCodes.Ldstr, "Enter the 'x' value for point 2: ");	
    pmIL.EmitCall(OpCodes.Call, writeMI, null);
    pmIL.EmitCall(OpCodes.Call, readLineMI, null);
    pmIL.EmitCall(OpCodes.Call, convertInt32MI, null);
    pmIL.Emit(OpCodes.Stloc, x2LB);

    pmIL.Emit(OpCodes.Ldstr, "Enter the 'y' value for point 2: ");	
    pmIL.EmitCall(OpCodes.Call, writeMI, null);
    pmIL.EmitCall(OpCodes.Call, readLineMI, null);
    pmIL.EmitCall(OpCodes.Call, convertInt32MI, null);
    pmIL.Emit(OpCodes.Stloc, y2LB);

    pmIL.Emit(OpCodes.Ldloc, x1LB);
    pmIL.Emit(OpCodes.Ldloc, y1LB);
    pmIL.Emit(OpCodes.Newobj, pointCtor);
    pmIL.Emit(OpCodes.Stloc, point1LB);

    pmIL.Emit(OpCodes.Ldloc, x2LB);
    pmIL.Emit(OpCodes.Ldloc, y2LB);
    pmIL.Emit(OpCodes.Newobj, pointCtor);
    pmIL.Emit(OpCodes.Stloc, point2LB);

    pmIL.Emit(OpCodes.Ldstr, "({0}, {1}) . ({2}, {3}) = {4}.");
    pmIL.Emit(OpCodes.Ldc_I4_5);
    pmIL.Emit(OpCodes.Newarr, typeof(Object));
    pmIL.Emit(OpCodes.Stloc, tempObjArrLB);

    pmIL.Emit(OpCodes.Ldloc, tempObjArrLB);
    pmIL.Emit(OpCodes.Ldc_I4_0);
    pmIL.Emit(OpCodes.Ldloc, x1LB);
    pmIL.Emit(OpCodes.Box, typeof(int));
    pmIL.Emit(OpCodes.Stelem_Ref);

    pmIL.Emit(OpCodes.Ldloc, tempObjArrLB);
    pmIL.Emit(OpCodes.Ldc_I4_1);
    pmIL.Emit(OpCodes.Ldloc, y1LB);
    pmIL.Emit(OpCodes.Box, typeof(int));
    pmIL.Emit(OpCodes.Stelem_Ref);

    pmIL.Emit(OpCodes.Ldloc, tempObjArrLB);
    pmIL.Emit(OpCodes.Ldc_I4_2);
    pmIL.Emit(OpCodes.Ldloc, x2LB);
    pmIL.Emit(OpCodes.Box, typeof(int));
    pmIL.Emit(OpCodes.Stelem_Ref);

    pmIL.Emit(OpCodes.Ldloc, tempObjArrLB);
    pmIL.Emit(OpCodes.Ldc_I4_3);
    pmIL.Emit(OpCodes.Ldloc, y2LB);
    pmIL.Emit(OpCodes.Box, typeof(int));
    pmIL.Emit(OpCodes.Stelem_Ref);

    pmIL.Emit(OpCodes.Ldloc, tempObjArrLB);
    pmIL.Emit(OpCodes.Ldc_I4_4);
    pmIL.Emit(OpCodes.Ldloc, point1LB);
    pmIL.Emit(OpCodes.Ldloc, point2LB);
    pmIL.EmitCall(OpCodes.Callvirt, pointDPBldr, null);

    pmIL.Emit(OpCodes.Box, typeof(int));
    pmIL.Emit(OpCodes.Stelem_Ref);
    pmIL.Emit(OpCodes.Ldloc, tempObjArrLB);
    pmIL.EmitCall(OpCodes.Call, writeLineMI, null);

    pmIL.Emit(OpCodes.Ret);

        Console.WriteLine("PointMain (entry point) built.");

        pointType = myTypeBldr.CreateType();

        Console.WriteLine("Type completed.");

    myAsmBldr.SetEntryPoint(pointMainBldr);

        myAsmBldr.Save(asmFileName);

        Console.WriteLine("Assembly saved as '{0}'.", asmFileName);
        Console.WriteLine("Type '{0}' at the prompt to run your new " +
                  "dynamically generated dot product calculator.",
               asmFileName);

    // After execution, this program will have generated and written to disk,
        // in the directory you executed it from, a program named
    // <name_you_entered_here>.exe. You can run it by typing
    // the name you gave it during execution, in the same directory where
    // you executed this program.

    return pointType;
   }

   public static void Main() {

     Type myType = BuildDynAssembly();
     Console.WriteLine("---");

     // Let's invoke the type 'Point' created in our dynamic assembly.

     object ptInstance = Activator.CreateInstance(myType, new object[] {0,0});
                        
     myType.InvokeMember("PointMain",
              BindingFlags.InvokeMethod,
              null,
              ptInstance,
              new object[0]);
   }
}

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

 _

' The Point class is the class we will reflect on and copy into our
' dynamic assembly. The public static function PointMain() will be used
' as our entry point.
'
' We are constructing the type seen here dynamically, and will write it
' out into a .exe file for later execution from the command-line.
' --- 
' Class Point
'    
'    Private x As Integer
'    Private y As Integer
'    
'    
'    Public Sub New(ix As Integer, iy As Integer)
'       
'       Me.x = ix
'       Me.y = iy
'    End Sub
'     
'    
'    Public Function DotProduct(p As Point) As Integer
'       
'       Return Me.x * p.x + Me.y * p.y
'    End Function 'DotProduct
'     
'    
'    Public Shared Sub Main()
'       
'       Console.Write("Enter the 'x' value for point 1: ")
'       Dim x1 As Integer = Convert.ToInt32(Console.ReadLine())
'       
'       Console.Write("Enter the 'y' value for point 1: ")
'       Dim y1 As Integer = Convert.ToInt32(Console.ReadLine())
'       
'       Console.Write("Enter the 'x' value for point 2: ")
'       Dim x2 As Integer = Convert.ToInt32(Console.ReadLine())
'       
'       Console.Write("Enter the 'y' value for point 2: ")
'       Dim y2 As Integer = Convert.ToInt32(Console.ReadLine())
'       
'       Dim p1 As New Point(x1, y1)
'       Dim p2 As New Point(x2, y2)
'       
'       Console.WriteLine("({0}, {1}) . ({2}, {3}) = {4}.", x1, y1, x2, y2, p1.DotProduct(p2))
'    End Sub
' End Class
' ---
Class AssemblyBuilderDemo
   
   
   Public Shared Function BuildDynAssembly() As Type
      
      Dim pointType As Type = Nothing
      
      Dim currentDom As AppDomain = Thread.GetDomain()
      
      Console.Write("Please enter a name for your new assembly: ")
      Dim asmFileNameBldr As New StringBuilder()
      asmFileNameBldr.Append(Console.ReadLine())
      asmFileNameBldr.Append(".exe")
      Dim asmFileName As String = asmFileNameBldr.ToString()
      
      Dim myAsmName As New AssemblyName()
      myAsmName.Name = "MyDynamicAssembly"
      
      Dim myAsmBldr As AssemblyBuilder = currentDom.DefineDynamicAssembly(myAsmName, _
                     AssemblyBuilderAccess.RunAndSave)
      
      ' We've created a dynamic assembly space - now, we need to create a module
      ' within it to reflect the type Point into.
      Dim myModuleBldr As ModuleBuilder = myAsmBldr.DefineDynamicModule(asmFileName, _
                                    asmFileName)
      
      Dim myTypeBldr As TypeBuilder = myModuleBldr.DefineType("Point")
      
      Dim xField As FieldBuilder = myTypeBldr.DefineField("x", GetType(Integer), _
                                  FieldAttributes.Private)
      Dim yField As FieldBuilder = myTypeBldr.DefineField("y", GetType(Integer), _
                              FieldAttributes.Private)
      
      ' Build the constructor.
      Dim objType As Type = Type.GetType("System.Object")
      Dim objCtor As ConstructorInfo = objType.GetConstructor(New Type() {})
      
      Dim ctorParams() As Type = {GetType(Integer), GetType(Integer)}
      Dim pointCtor As ConstructorBuilder = myTypeBldr.DefineConstructor( _
                        MethodAttributes.Public, _
                        CallingConventions.Standard, _
                        ctorParams)
      Dim ctorIL As ILGenerator = pointCtor.GetILGenerator()
      ctorIL.Emit(OpCodes.Ldarg_0)
      ctorIL.Emit(OpCodes.Call, objCtor)
      ctorIL.Emit(OpCodes.Ldarg_0)
      ctorIL.Emit(OpCodes.Ldarg_1)
      ctorIL.Emit(OpCodes.Stfld, xField)
      ctorIL.Emit(OpCodes.Ldarg_0)
      ctorIL.Emit(OpCodes.Ldarg_2)
      ctorIL.Emit(OpCodes.Stfld, yField)
      ctorIL.Emit(OpCodes.Ret)
      
      ' Build the DotProduct method.
      Console.WriteLine("Constructor built.")
      
      Dim pointDPBldr As MethodBuilder = myTypeBldr.DefineMethod("DotProduct", _
                                 MethodAttributes.Public, _
                                 GetType(Integer), _
                                 New Type(0) {myTypeBldr})
      
      Dim dpIL As ILGenerator = pointDPBldr.GetILGenerator()
      dpIL.Emit(OpCodes.Ldarg_0)
      dpIL.Emit(OpCodes.Ldfld, xField)
      dpIL.Emit(OpCodes.Ldarg_1)
      dpIL.Emit(OpCodes.Ldfld, xField)
      dpIL.Emit(OpCodes.Mul_Ovf_Un)
      dpIL.Emit(OpCodes.Ldarg_0)
      dpIL.Emit(OpCodes.Ldfld, yField)
      dpIL.Emit(OpCodes.Ldarg_1)
      dpIL.Emit(OpCodes.Ldfld, yField)
      dpIL.Emit(OpCodes.Mul_Ovf_Un)
      dpIL.Emit(OpCodes.Add_Ovf_Un)
      dpIL.Emit(OpCodes.Ret)
      
      ' Build the PointMain method.
      Console.WriteLine("DotProduct built.")
      
      Dim pointMainBldr As MethodBuilder = myTypeBldr.DefineMethod("PointMain", _
                              MethodAttributes.Public Or _
                              MethodAttributes.Static, _
                              Nothing, Nothing)
      pointMainBldr.InitLocals = True
      Dim pmIL As ILGenerator = pointMainBldr.GetILGenerator()
      
      ' We have four methods that we wish to call, and must represent as
      ' MethodInfo tokens:
      ' - Sub Console.WriteLine(string)
      ' - Function Console.ReadLine() As String
      ' - Function Convert.Int32(string) As Int
      ' - Sub Console.WriteLine(string, object[])

      Dim writeMI As MethodInfo = GetType(Console).GetMethod("Write", _
                               New Type(0) {GetType(String)}) 
                                     
      Dim readLineMI As MethodInfo = GetType(Console).GetMethod("ReadLine", _
                              New Type() {})
      Dim convertInt32MI As MethodInfo = GetType(Convert).GetMethod("ToInt32", _
                              New Type(0) {GetType(String)})
      Dim wlParams() As Type = {GetType(String), GetType(Object())}
      Dim writeLineMI As MethodInfo = GetType(Console).GetMethod("WriteLine", wlParams)
      
      ' Although we could just refer to the local variables by
      ' index (short ints for Ldloc/Stloc, bytes for LdLoc_S/Stloc_S),
      ' this time, we'll use LocalBuilders for clarity and to
      ' demonstrate their usage and syntax.

      Dim x1LB As LocalBuilder = pmIL.DeclareLocal(GetType(Integer))
      Dim y1LB As LocalBuilder = pmIL.DeclareLocal(GetType(Integer))
      Dim x2LB As LocalBuilder = pmIL.DeclareLocal(GetType(Integer))
      Dim y2LB As LocalBuilder = pmIL.DeclareLocal(GetType(Integer))
      Dim point1LB As LocalBuilder = pmIL.DeclareLocal(myTypeBldr)
      Dim point2LB As LocalBuilder = pmIL.DeclareLocal(myTypeBldr)
      Dim tempObjArrLB As LocalBuilder = pmIL.DeclareLocal(GetType(Object()))
      
      pmIL.Emit(OpCodes.Ldstr, "Enter the 'x' value for point 1: ")
      pmIL.EmitCall(OpCodes.Call, writeMI, Nothing)
      pmIL.EmitCall(OpCodes.Call, readLineMI, Nothing)
      pmIL.EmitCall(OpCodes.Call, convertInt32MI, Nothing)
      pmIL.Emit(OpCodes.Stloc, x1LB)
      
      pmIL.Emit(OpCodes.Ldstr, "Enter the 'y' value for point 1: ")
      pmIL.EmitCall(OpCodes.Call, writeMI, Nothing)
      pmIL.EmitCall(OpCodes.Call, readLineMI, Nothing)
      pmIL.EmitCall(OpCodes.Call, convertInt32MI, Nothing)
      pmIL.Emit(OpCodes.Stloc, y1LB)
      
      pmIL.Emit(OpCodes.Ldstr, "Enter the 'x' value for point 2: ")
      pmIL.EmitCall(OpCodes.Call, writeMI, Nothing)
      pmIL.EmitCall(OpCodes.Call, readLineMI, Nothing)
      pmIL.EmitCall(OpCodes.Call, convertInt32MI, Nothing)
      pmIL.Emit(OpCodes.Stloc, x2LB)
      
      pmIL.Emit(OpCodes.Ldstr, "Enter the 'y' value for point 2: ")
      pmIL.EmitCall(OpCodes.Call, writeMI, Nothing)
      pmIL.EmitCall(OpCodes.Call, readLineMI, Nothing)
      pmIL.EmitCall(OpCodes.Call, convertInt32MI, Nothing)
      pmIL.Emit(OpCodes.Stloc, y2LB)
      
      pmIL.Emit(OpCodes.Ldloc, x1LB)
      pmIL.Emit(OpCodes.Ldloc, y1LB)
      pmIL.Emit(OpCodes.Newobj, pointCtor)
      pmIL.Emit(OpCodes.Stloc, point1LB)
      
      pmIL.Emit(OpCodes.Ldloc, x2LB)
      pmIL.Emit(OpCodes.Ldloc, y2LB)
      pmIL.Emit(OpCodes.Newobj, pointCtor)
      pmIL.Emit(OpCodes.Stloc, point2LB)
      
      pmIL.Emit(OpCodes.Ldstr, "({0}, {1}) . ({2}, {3}) = {4}.")
      pmIL.Emit(OpCodes.Ldc_I4_5)
      pmIL.Emit(OpCodes.Newarr, GetType([Object]))
      pmIL.Emit(OpCodes.Stloc, tempObjArrLB)
      
      pmIL.Emit(OpCodes.Ldloc, tempObjArrLB)
      pmIL.Emit(OpCodes.Ldc_I4_0)
      pmIL.Emit(OpCodes.Ldloc, x1LB)
      pmIL.Emit(OpCodes.Box, GetType(Integer))
      pmIL.Emit(OpCodes.Stelem_Ref)
      
      pmIL.Emit(OpCodes.Ldloc, tempObjArrLB)
      pmIL.Emit(OpCodes.Ldc_I4_1)
      pmIL.Emit(OpCodes.Ldloc, y1LB)
      pmIL.Emit(OpCodes.Box, GetType(Integer))
      pmIL.Emit(OpCodes.Stelem_Ref)
      
      pmIL.Emit(OpCodes.Ldloc, tempObjArrLB)
      pmIL.Emit(OpCodes.Ldc_I4_2)
      pmIL.Emit(OpCodes.Ldloc, x2LB)
      pmIL.Emit(OpCodes.Box, GetType(Integer))
      pmIL.Emit(OpCodes.Stelem_Ref)
      
      pmIL.Emit(OpCodes.Ldloc, tempObjArrLB)
      pmIL.Emit(OpCodes.Ldc_I4_3)
      pmIL.Emit(OpCodes.Ldloc, y2LB)
      pmIL.Emit(OpCodes.Box, GetType(Integer))
      pmIL.Emit(OpCodes.Stelem_Ref)
      
      pmIL.Emit(OpCodes.Ldloc, tempObjArrLB)
      pmIL.Emit(OpCodes.Ldc_I4_4)
      pmIL.Emit(OpCodes.Ldloc, point1LB)
      pmIL.Emit(OpCodes.Ldloc, point2LB)
      pmIL.EmitCall(OpCodes.Callvirt, pointDPBldr, Nothing)
      
      pmIL.Emit(OpCodes.Box, GetType(Integer))
      pmIL.Emit(OpCodes.Stelem_Ref)
      pmIL.Emit(OpCodes.Ldloc, tempObjArrLB)
      pmIL.EmitCall(OpCodes.Call, writeLineMI, Nothing)
      
      pmIL.Emit(OpCodes.Ret)
      
      Console.WriteLine("PointMain (entry point) built.")
      
      pointType = myTypeBldr.CreateType()
      
      Console.WriteLine("Type completed.")
      
      myAsmBldr.SetEntryPoint(pointMainBldr)
      
      myAsmBldr.Save(asmFileName)
      
      Console.WriteLine("Assembly saved as '{0}'.", asmFileName)
      Console.WriteLine("Type '{0}' at the prompt to run your new " + "dynamically generated dot product calculator.", asmFileName)
      
      ' After execution, this program will have generated and written to disk,
      ' in the directory you executed it from, a program named 
      ' <name_you_entered_here>.exe. You can run it by typing
      ' the name you gave it during execution, in the same directory where
      ' you executed this program.

      Return pointType

   End Function 'BuildDynAssembly
    
   
   Public Shared Sub Main()
      
      Dim myType As Type = BuildDynAssembly()
      Console.WriteLine("---")
      
      ' Let's invoke the type 'Point' created in our dynamic assembly. 
      Dim ptInstance As Object = Activator.CreateInstance(myType, New Object(1) {0, 0})
      
      myType.InvokeMember("PointMain", BindingFlags.InvokeMethod, _
              Nothing, ptInstance, New Object() {})

   End Sub

End Class

Uwagi

Uwaga

Zapisywanie zestawu dynamicznego na dysku jest obsługiwane tylko w .NET Framework.

Ta metoda zapisuje wszystkie nie przejściowe moduły dynamiczne zdefiniowane w tym zestawie dynamicznym. Przejściowe moduły dynamiczne nie są zapisywane. Nazwa pliku zestawu może być taka sama jak nazwa jednego z modułów. Jeśli tak, manifest zestawu jest przechowywany w tym module. assemblyFileName może się różnić od nazw wszystkich modułów zawartych w zestawie. Jeśli tak, plik zestawu zawiera tylko manifest zestawu.

Dla każdego ResourceWriter uzyskanego przy użyciu DefineResourcemetody ta metoda zapisuje plik resources i wywołuje polecenie Close w celu zamknięcia strumienia.

Musi assemblyFileName być prostą nazwą pliku bez dysku lub składnika katalogu. Aby utworzyć zestaw w określonym katalogu, użyj jednej z DefineDynamicAssembly metod, które pobierają argument katalogu docelowego.

W .NET Framework wersji 2.0 to przeciążenie Save metody jest równoważne wywołaniu Save(String, PortableExecutableKinds, ImageFileMachine) przeciążenia metody dla ILOnly parametru portableExecutableKind i I386 parametruimageFileMachine.

Dotyczy

Save(String, PortableExecutableKinds, ImageFileMachine)

Zapisuje ten dynamiczny zestaw na dysku, określając charakter kodu w plikach wykonywalnych zestawu i platformie docelowej.

public:
 void Save(System::String ^ assemblyFileName, System::Reflection::PortableExecutableKinds portableExecutableKind, System::Reflection::ImageFileMachine imageFileMachine);

public void Save (string assemblyFileName, System.Reflection.PortableExecutableKinds portableExecutableKind, System.Reflection.ImageFileMachine imageFileMachine);

member this.Save : string * System.Reflection.PortableExecutableKinds * System.Reflection.ImageFileMachine -> unit

Public Sub Save (assemblyFileName As String, portableExecutableKind As PortableExecutableKinds, imageFileMachine As ImageFileMachine)

Parametry

assemblyFileName: String

Nazwa pliku zestawu.

portableExecutableKind: PortableExecutableKinds

Bitowa kombinacja PortableExecutableKinds wartości określających charakter kodu.

imageFileMachine: ImageFileMachine

ImageFileMachine Jedna z wartości określających platformę docelową.

Wyjątki

ArgumentException

Długość assemblyFileName to 0.

-lub-

W zestawie znajdują się co najmniej dwa pliki zasobów modułów o tej samej nazwie.

-lub-

Katalog docelowy zestawu jest nieprawidłowy.

-lub-

assemblyFileName nie jest prostą nazwą pliku (na przykład ma katalog lub składnik dysku) lub więcej niż jeden niezarządzany zasób, w tym zasoby informacji o wersji, został zdefiniowany w tym zestawie.

-lub-

Ciąg CultureInfo w pliku AssemblyCultureAttribute nie jest prawidłowym ciągiem i DefineVersionInfoResource(String, String, String, String, String) został wywołany przed wywołaniem tej metody.

ArgumentNullException

assemblyFileName to null.

InvalidOperationException

Ten zestaw został zapisany wcześniej.

-lub-

Ten zestaw ma dostęp RunAssemblyBuilderAccess

IOException

Podczas zapisywania występuje błąd wyjściowy.

NotSupportedException

CreateType() nie został wywołany dla żadnego z typów w modułach zestawu do zapisania na dysku.

Uwagi

Uwaga

Zapisywanie zestawu dynamicznego na dysku jest obsługiwane tylko w .NET Framework.

Jeśli imageFileMachine i portableExecutableKind są niezgodne, imageFileMachine pierwszeństwo ma wartość portableExecutableKind. Wyjątek nie jest zgłaszany. Jeśli na przykład określisz ImageFileMachine.I386 wartość z parametrem PortableExecutableKinds.PE32Plus, PortableExecutableKinds.PE32Plus zostanie zignorowana.

Dla każdego ResourceWriter uzyskanego przy użyciu DefineResourcemetody ta metoda zapisuje plik resources i wywołuje polecenie Close w celu zamknięcia strumienia.

Dotyczy

Udostępnij za pośrednictwem

AssemblyBuilder.Save Metoda

Definicja

Przeciążenia

Save(String)

Parametry

Wyjątki

Przykłady

Uwagi

Dotyczy

Save(String, PortableExecutableKinds, ImageFileMachine)

Parametry

Wyjątki

Uwagi

Dotyczy

Dodatkowe zasoby