AssemblyBuilder.Save Метод

Ссылка

Определение

Пространство имен:: System.Reflection.Emit

Сборка:: System.Reflection.Emit.dll

Сборка:: mscorlib.dll

Важно!

Некоторые сведения относятся к предварительной версии продукта, в которую до выпуска могут быть внесены существенные изменения. Майкрософт не предоставляет никаких гарантий, явных или подразумеваемых, относительно приведенных здесь сведений.

Сохраняет динамическую сборку на диск.

Перегрузки

Save(Stream)
Save(String)	Сохраняет динамическую сборку на диск.
Save(String, PortableExecutableKinds, ImageFileMachine)	Сохраняет эту динамическую сборку на диске, указывая природу кода в исполняемых файлах сборки и целевую платформу.

Save(Stream)

Исходный код:: AssemblyBuilder.cs

public:
 void Save(System::IO::Stream ^ stream);

public void Save (System.IO.Stream stream);

member this.Save : System.IO.Stream -> unit

Public Sub Save (stream As Stream)

Параметры

stream: Stream

Применяется к

Save(String)

Исходный код:: AssemblyBuilder.cs

Сохраняет динамическую сборку на диск.

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

public void Save (string assemblyFileName);

member this.Save : string -> unit

Public Sub Save (assemblyFileName As String)

Параметры

assemblyFileName: String

Имя файла сборки.

Исключения

ArgumentException

Длина assemblyFileName равна нулю.

-или-

В сборке есть два или более файлов ресурсов модулей с тем же именем.

-или-

Целевой каталог сборки недопустим.

-или-

assemblyFileName не является простым именем файла (например, содержит каталог или букву диска), или в этой сборке определено несколько неуправляемых ресурсов, включая ресурс сведений о версии.

-или-

Строка CultureInfo в AssemblyCultureAttribute не является допустимой строкой, и DefineVersionInfoResource(String, String, String, String, String) был вызван до вызова этого метода.

ArgumentNullException

assemblyFileName имеет значение null.

InvalidOperationException

Эта сборка была сохранена ранее.

-или-

Эта сборка имеет доступ RunAssemblyBuilderAccess.

IOException

Во время сохранения возникает ошибка вывода.

NotSupportedException

CreateType() не был вызван для какого-либо типа в модулях сборки, которые должны быть записаны на диск.

Примеры

В следующем примере кода создается динамическая сборка, а затем она сохраняется на локальном диске с помощью 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

Этот метод сохраняет все непереходные динамические модули, определенные в этой динамической сборке. Временные динамические модули не сохраняются. Имя файла сборки может совпадать с именем одного из модулей. В этом случае манифест сборки хранится в этом модуле. assemblyFileName могут отличаться от имен всех модулей, содержащихся в сборке. В этом случае файл сборки содержит только манифест сборки.

Для каждого, ResourceWriter полученного с помощью DefineResource, этот метод записывает RESOURCES-файл и вызывает Close для закрытия потока.

Должно assemblyFileName быть простым именем файла без диска или компонента каталога. Чтобы создать сборку в определенном каталоге, используйте один из DefineDynamicAssembly методов, который принимает аргумент целевого каталога.

В платформа .NET Framework версии 2.0 эта перегрузка Save метода эквивалентна вызову перегрузки Save(String, PortableExecutableKinds, ImageFileMachine) метода с ILOnly для portableExecutableKind параметра и I386 для imageFileMachine параметра .

Применяется к

Save(String, PortableExecutableKinds, ImageFileMachine)

Сохраняет эту динамическую сборку на диске, указывая природу кода в исполняемых файлах сборки и целевую платформу.

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)

Параметры

assemblyFileName: String

Имя файла сборки.

portableExecutableKind: PortableExecutableKinds

Побитовое сочетание значений PortableExecutableKinds, определяющее природу кода.

imageFileMachine: ImageFileMachine

Одно из значений ImageFileMachine, определяющее целевую платформу.

Исключения

ArgumentException

Длина assemblyFileName равна нулю.

-или-

В сборке есть два или более файлов ресурсов модулей с тем же именем.

-или-

Целевой каталог сборки недопустим.

-или-

ArgumentNullException

assemblyFileName имеет значение null.

InvalidOperationException

Эта сборка была сохранена ранее.

-или-

Эта сборка имеет доступ RunAssemblyBuilderAccess.

IOException

Во время сохранения возникает ошибка вывода.

NotSupportedException

CreateType() не был вызван для какого-либо типа в модулях сборки, которые должны быть записаны на диск.

Если imageFileMachine и portableExecutableKind несовместимы, imageFileMachine имеет приоритет над portableExecutableKind. Исключение не выдается. Например, если указать с PortableExecutableKinds.PE32Plusпомощью ImageFileMachine.I386 , PortableExecutableKinds.PE32Plus параметр игнорируется.

Применяется к

AssemblyBuilder.Save Метод

Определение

Перегрузки

Save(Stream)

Параметры

Применяется к

Save(String)

Параметры

Исключения

Примеры

Комментарии

Применяется к

Save(String, PortableExecutableKinds, ImageFileMachine)

Параметры

Исключения

Комментарии

Применяется к

Обратная связь

Дополнительные ресурсы