AppDomainSetup.LoaderOptimization Property
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Specifies the optimization policy used to load an executable.
public:
property LoaderOptimization LoaderOptimization { LoaderOptimization get(); void set(LoaderOptimization value); };public LoaderOptimization LoaderOptimization { get; set; }member this.LoaderOptimization : LoaderOptimization with get, setPublic Property LoaderOptimization As LoaderOptimizationProperty Value
An enumerated constant that is used with the LoaderOptimizationAttribute.
Examples
The following example creates a dynamic assembly and saves it to disk, and then uses the LoaderOptimization property to set the optimization policy used to load the assembly into an application domain.
using namespace System;
using namespace System::IO;
using namespace System::Threading;
using namespace System::Reflection;
using namespace System::Reflection::Emit;
using namespace System::Runtime::Remoting;
ref class ADDyno
{
public:
static Type^ CreateADynamicAssembly( interior_ptr<AppDomain^> myNewDomain, String^ executableNameNoExe )
{
String^ executableName = String::Concat( executableNameNoExe, ".exe" );
AssemblyName^ myAsmName = gcnew AssemblyName;
myAsmName->Name = executableNameNoExe;
myAsmName->CodeBase = Environment::CurrentDirectory;
AssemblyBuilder^ myAsmBuilder = ( *myNewDomain)->DefineDynamicAssembly( myAsmName, AssemblyBuilderAccess::RunAndSave );
Console::WriteLine( "-- Dynamic Assembly instantiated." );
ModuleBuilder^ myModBuilder = myAsmBuilder->DefineDynamicModule( executableNameNoExe, executableName );
TypeBuilder^ myTypeBuilder = myModBuilder->DefineType( executableNameNoExe, TypeAttributes::Public, MarshalByRefObject::typeid );
array<Type^>^temp0 = nullptr;
MethodBuilder^ myFCMethod = myTypeBuilder->DefineMethod( "CountLocalFiles", static_cast<MethodAttributes>(MethodAttributes::Public | MethodAttributes::Static), nullptr, temp0 );
MethodInfo^ currentDirGetMI = Environment::typeid->GetProperty( "CurrentDirectory" )->GetGetMethod();
array<Type^>^temp1 = {String::typeid};
MethodInfo^ writeLine0objMI = Console::typeid->GetMethod( "WriteLine", temp1 );
array<Type^>^temp2 = {String::typeid,Object::typeid,Object::typeid};
MethodInfo^ writeLine2objMI = Console::typeid->GetMethod( "WriteLine", temp2 );
array<Type^>^temp3 = {String::typeid};
MethodInfo^ getFilesMI = Directory::typeid->GetMethod( "GetFiles", temp3 );
myFCMethod->InitLocals = true;
ILGenerator^ myFCIL = myFCMethod->GetILGenerator();
Console::WriteLine( "-- Generating MSIL method body..." );
LocalBuilder^ v0 = myFCIL->DeclareLocal( String::typeid );
LocalBuilder^ v1 = myFCIL->DeclareLocal( int::typeid );
LocalBuilder^ v2 = myFCIL->DeclareLocal( String::typeid );
LocalBuilder^ v3 = myFCIL->DeclareLocal( array<String^>::typeid );
Label evalForEachLabel = myFCIL->DefineLabel();
Label topOfForEachLabel = myFCIL->DefineLabel();
// Build the method body.
myFCIL->EmitCall( OpCodes::Call, currentDirGetMI, nullptr );
myFCIL->Emit( OpCodes::Stloc_S, v0 );
myFCIL->Emit( OpCodes::Ldc_I4_0 );
myFCIL->Emit( OpCodes::Stloc_S, v1 );
myFCIL->Emit( OpCodes::Ldstr, "---" );
myFCIL->EmitCall( OpCodes::Call, writeLine0objMI, nullptr );
myFCIL->Emit( OpCodes::Ldloc_S, v0 );
myFCIL->EmitCall( OpCodes::Call, getFilesMI, nullptr );
myFCIL->Emit( OpCodes::Stloc_S, v3 );
myFCIL->Emit( OpCodes::Br_S, evalForEachLabel );
// foreach loop starts here.
myFCIL->MarkLabel( topOfForEachLabel );
// Load array of strings and index, store value at index for output.
myFCIL->Emit( OpCodes::Ldloc_S, v3 );
myFCIL->Emit( OpCodes::Ldloc_S, v1 );
myFCIL->Emit( OpCodes::Ldelem_Ref );
myFCIL->Emit( OpCodes::Stloc_S, v2 );
myFCIL->Emit( OpCodes::Ldloc_S, v2 );
myFCIL->EmitCall( OpCodes::Call, writeLine0objMI, nullptr );
// Increment counter by one.
myFCIL->Emit( OpCodes::Ldloc_S, v1 );
myFCIL->Emit( OpCodes::Ldc_I4_1 );
myFCIL->Emit( OpCodes::Add );
myFCIL->Emit( OpCodes::Stloc_S, v1 );
// Determine if end of file list array has been reached.
myFCIL->MarkLabel( evalForEachLabel );
myFCIL->Emit( OpCodes::Ldloc_S, v1 );
myFCIL->Emit( OpCodes::Ldloc_S, v3 );
myFCIL->Emit( OpCodes::Ldlen );
myFCIL->Emit( OpCodes::Conv_I4 );
myFCIL->Emit( OpCodes::Blt_S, topOfForEachLabel );
//foreach loop end here.
myFCIL->Emit( OpCodes::Ldstr, "---" );
myFCIL->EmitCall( OpCodes::Call, writeLine0objMI, nullptr );
myFCIL->Emit( OpCodes::Ldstr, "There are {0} files in {1}." );
myFCIL->Emit( OpCodes::Ldloc_S, v1 );
myFCIL->Emit( OpCodes::Box, int::typeid );
myFCIL->Emit( OpCodes::Ldloc_S, v0 );
myFCIL->EmitCall( OpCodes::Call, writeLine2objMI, nullptr );
myFCIL->Emit( OpCodes::Ret );
Type^ myType = myTypeBuilder->CreateType();
myAsmBuilder->SetEntryPoint( myFCMethod );
myAsmBuilder->Save( executableName );
Console::WriteLine( "-- Method generated, type completed, and assembly saved to disk." );
return myType;
}
};
int main()
{
String^ domainDir;
String^ executableName = nullptr;
Console::Write( "Enter a name for the file counting assembly: " );
String^ executableNameNoExe = Console::ReadLine();
executableName = String::Concat( executableNameNoExe, ".exe" );
Console::WriteLine( "---" );
domainDir = Environment::CurrentDirectory;
AppDomain^ curDomain = Thread::GetDomain();
// Create a new AppDomain, with the current directory as the base.
Console::WriteLine( "Current Directory: {0}", Environment::CurrentDirectory );
AppDomainSetup^ mySetupInfo = gcnew AppDomainSetup;
mySetupInfo->ApplicationBase = domainDir;
mySetupInfo->ApplicationName = executableNameNoExe;
mySetupInfo->LoaderOptimization = LoaderOptimization::SingleDomain;
AppDomain^ myDomain = AppDomain::CreateDomain( executableNameNoExe, nullptr, mySetupInfo );
Console::WriteLine( "Creating a new AppDomain '{0}'...", executableNameNoExe );
Console::WriteLine( "-- Base Directory = '{0}'", myDomain->BaseDirectory );
Console::WriteLine( "-- Shadow Copy? = '{0}'", myDomain->ShadowCopyFiles );
Console::WriteLine( "---" );
Type^ myFCType = ADDyno::CreateADynamicAssembly( &curDomain, executableNameNoExe );
Console::WriteLine( "Loading '{0}' from '{1}'...", executableName, myDomain->BaseDirectory );
BindingFlags bFlags = static_cast<BindingFlags>(BindingFlags::Public | BindingFlags::CreateInstance | BindingFlags::Instance);
Object^ myObjInstance = myDomain->CreateInstanceAndUnwrap( executableNameNoExe, executableNameNoExe, false, bFlags, nullptr, nullptr, nullptr, nullptr, nullptr );
Console::WriteLine( "Executing method 'CountLocalFiles' in {0}...", myObjInstance );
array<Object^>^temp4 = nullptr;
myFCType->InvokeMember( "CountLocalFiles", BindingFlags::InvokeMethod, nullptr, myObjInstance, temp4 );
}
using System;
using System.IO;
using System.Threading;
using System.Reflection;
using System.Reflection.Emit;
using System.Runtime.Remoting;
class ADDyno
{
public static Type CreateADynamicAssembly(ref AppDomain myNewDomain,
string executableNameNoExe)
{
string executableName = executableNameNoExe + ".exe";
AssemblyName myAsmName = new AssemblyName();
myAsmName.Name = executableNameNoExe;
myAsmName.CodeBase = Environment.CurrentDirectory;
AssemblyBuilder myAsmBuilder = myNewDomain.DefineDynamicAssembly(myAsmName,
AssemblyBuilderAccess.RunAndSave);
Console.WriteLine("-- Dynamic Assembly instantiated.");
ModuleBuilder myModBuilder = myAsmBuilder.DefineDynamicModule(executableNameNoExe,
executableName);
TypeBuilder myTypeBuilder = myModBuilder.DefineType(executableNameNoExe,
TypeAttributes.Public,
typeof(MarshalByRefObject));
MethodBuilder myFCMethod = myTypeBuilder.DefineMethod("CountLocalFiles",
MethodAttributes.Public |
MethodAttributes.Static,
null,
new Type[] { });
MethodInfo currentDirGetMI = typeof(Environment).GetProperty("CurrentDirectory").GetGetMethod();
MethodInfo writeLine0objMI = typeof(Console).GetMethod("WriteLine",
new Type[] { typeof(string) });
MethodInfo writeLine2objMI = typeof(Console).GetMethod("WriteLine",
new Type[] { typeof(string), typeof(object), typeof(object) });
MethodInfo getFilesMI = typeof(Directory).GetMethod("GetFiles",
new Type[] { typeof(string) });
myFCMethod.InitLocals = true;
ILGenerator myFCIL = myFCMethod.GetILGenerator();
Console.WriteLine("-- Generating MSIL method body...");
LocalBuilder v0 = myFCIL.DeclareLocal(typeof(string));
LocalBuilder v1 = myFCIL.DeclareLocal(typeof(int));
LocalBuilder v2 = myFCIL.DeclareLocal(typeof(string));
LocalBuilder v3 = myFCIL.DeclareLocal(typeof(string[]));
Label evalForEachLabel = myFCIL.DefineLabel();
Label topOfForEachLabel = myFCIL.DefineLabel();
// Build the method body.
myFCIL.EmitCall(OpCodes.Call, currentDirGetMI, null);
myFCIL.Emit(OpCodes.Stloc_S, v0);
myFCIL.Emit(OpCodes.Ldc_I4_0);
myFCIL.Emit(OpCodes.Stloc_S, v1);
myFCIL.Emit(OpCodes.Ldstr, "---");
myFCIL.EmitCall(OpCodes.Call, writeLine0objMI, null);
myFCIL.Emit(OpCodes.Ldloc_S, v0);
myFCIL.EmitCall(OpCodes.Call, getFilesMI, null);
myFCIL.Emit(OpCodes.Stloc_S, v3);
myFCIL.Emit(OpCodes.Br_S, evalForEachLabel);
// foreach loop starts here.
myFCIL.MarkLabel(topOfForEachLabel);
// Load array of strings and index, store value at index for output.
myFCIL.Emit(OpCodes.Ldloc_S, v3);
myFCIL.Emit(OpCodes.Ldloc_S, v1);
myFCIL.Emit(OpCodes.Ldelem_Ref);
myFCIL.Emit(OpCodes.Stloc_S, v2);
myFCIL.Emit(OpCodes.Ldloc_S, v2);
myFCIL.EmitCall(OpCodes.Call, writeLine0objMI, null);
// Increment counter by one.
myFCIL.Emit(OpCodes.Ldloc_S, v1);
myFCIL.Emit(OpCodes.Ldc_I4_1);
myFCIL.Emit(OpCodes.Add);
myFCIL.Emit(OpCodes.Stloc_S, v1);
// Determine if end of file list array has been reached.
myFCIL.MarkLabel(evalForEachLabel);
myFCIL.Emit(OpCodes.Ldloc_S, v1);
myFCIL.Emit(OpCodes.Ldloc_S, v3);
myFCIL.Emit(OpCodes.Ldlen);
myFCIL.Emit(OpCodes.Conv_I4);
myFCIL.Emit(OpCodes.Blt_S, topOfForEachLabel);
//foreach loop end here.
myFCIL.Emit(OpCodes.Ldstr, "---");
myFCIL.EmitCall(OpCodes.Call, writeLine0objMI, null);
myFCIL.Emit(OpCodes.Ldstr, "There are {0} files in {1}.");
myFCIL.Emit(OpCodes.Ldloc_S, v1);
myFCIL.Emit(OpCodes.Box, typeof(int));
myFCIL.Emit(OpCodes.Ldloc_S, v0);
myFCIL.EmitCall(OpCodes.Call, writeLine2objMI, null);
myFCIL.Emit(OpCodes.Ret);
Type myType = myTypeBuilder.CreateType();
myAsmBuilder.SetEntryPoint(myFCMethod);
myAsmBuilder.Save(executableName);
Console.WriteLine("-- Method generated, type completed, and assembly saved to disk.");
return myType;
}
public static void Main()
{
string domainDir, executableName = null;
Console.Write("Enter a name for the file counting assembly: ");
string executableNameNoExe = Console.ReadLine();
executableName = executableNameNoExe + ".exe";
Console.WriteLine("---");
domainDir = Environment.CurrentDirectory;
AppDomain curDomain = Thread.GetDomain();
// Create a new AppDomain, with the current directory as the base.
Console.WriteLine("Current Directory: {0}", Environment.CurrentDirectory);
AppDomainSetup mySetupInfo = new AppDomainSetup();
mySetupInfo.ApplicationBase = domainDir;
mySetupInfo.ApplicationName = executableNameNoExe;
mySetupInfo.LoaderOptimization = LoaderOptimization.SingleDomain;
AppDomain myDomain = AppDomain.CreateDomain(executableNameNoExe,
null, mySetupInfo);
Console.WriteLine("Creating a new AppDomain '{0}'...",
executableNameNoExe);
Console.WriteLine("-- Base Directory = '{0}'", myDomain.BaseDirectory);
Console.WriteLine("-- Shadow Copy? = '{0}'", myDomain.ShadowCopyFiles);
Console.WriteLine("---");
Type myFCType = CreateADynamicAssembly(ref curDomain,
executableNameNoExe);
Console.WriteLine("Loading '{0}' from '{1}'...", executableName,
myDomain.BaseDirectory.ToString());
BindingFlags bFlags = (BindingFlags.Public | BindingFlags.CreateInstance |
BindingFlags.Instance);
Object myObjInstance = myDomain.CreateInstanceAndUnwrap(executableNameNoExe,
executableNameNoExe, false, bFlags,
null, null, null, null, null);
Console.WriteLine("Executing method 'CountLocalFiles' in {0}...",
myObjInstance.ToString());
myFCType.InvokeMember("CountLocalFiles", BindingFlags.InvokeMethod, null,
myObjInstance, new object[] { });
}
}
open System
open System.IO
open System.Threading
open System.Reflection
open System.Reflection.Emit
let createADynamicAssembly (myNewDomain: byref<AppDomain>) executableNameNoExe =
let executableName = executableNameNoExe + ".exe"
let myAsmName = AssemblyName()
myAsmName.Name <- executableNameNoExe
myAsmName.CodeBase <- Environment.CurrentDirectory
let myAsmBuilder =
myNewDomain.DefineDynamicAssembly(myAsmName, AssemblyBuilderAccess.RunAndSave)
printfn "-- Dynamic Assembly instantiated."
let myModBuilder =
myAsmBuilder.DefineDynamicModule(executableNameNoExe, executableName)
let myTypeBuilder =
myModBuilder.DefineType(executableNameNoExe,
TypeAttributes.Public,
typeof<MarshalByRefObject>)
let myFCMethod =
myTypeBuilder.DefineMethod("CountLocalFiles",
MethodAttributes.Public |||
MethodAttributes.Static,
null,
[||])
let currentDirGetMI = typeof<Environment>.GetProperty("CurrentDirectory").GetGetMethod()
let writeLine0objMI = typeof<Console>.GetMethod("WriteLine", [| typeof<string> |])
let writeLine2objMI = typeof<Console>.GetMethod("WriteLine", [| typeof<string>; typeof<obj>; typeof<obj> |])
let getFilesMI = typeof<Directory>.GetMethod("GetFiles", [| typeof<string> |])
myFCMethod.InitLocals <- true
let myFCIL = myFCMethod.GetILGenerator()
printfn "-- Generating MSIL method body..."
let v0 = myFCIL.DeclareLocal typeof<string>
let v1 = myFCIL.DeclareLocal typeof<int>
let v2 = myFCIL.DeclareLocal typeof<string>
let v3 = myFCIL.DeclareLocal typeof<string[]>
let evalForEachLabel = myFCIL.DefineLabel()
let topOfForEachLabel = myFCIL.DefineLabel()
// Build the method body.
myFCIL.EmitCall(OpCodes.Call, currentDirGetMI, null)
myFCIL.Emit(OpCodes.Stloc_S, v0)
myFCIL.Emit(OpCodes.Ldc_I4_0)
myFCIL.Emit(OpCodes.Stloc_S, v1)
myFCIL.Emit(OpCodes.Ldstr, "---")
myFCIL.EmitCall(OpCodes.Call, writeLine0objMI, null)
myFCIL.Emit(OpCodes.Ldloc_S, v0)
myFCIL.EmitCall(OpCodes.Call, getFilesMI, null)
myFCIL.Emit(OpCodes.Stloc_S, v3)
myFCIL.Emit(OpCodes.Br_S, evalForEachLabel)
// foreach loop starts here.
myFCIL.MarkLabel topOfForEachLabel
// Load array of strings and index, store value at index for output.
myFCIL.Emit(OpCodes.Ldloc_S, v3)
myFCIL.Emit(OpCodes.Ldloc_S, v1)
myFCIL.Emit OpCodes.Ldelem_Ref
myFCIL.Emit(OpCodes.Stloc_S, v2)
myFCIL.Emit(OpCodes.Ldloc_S, v2)
myFCIL.EmitCall(OpCodes.Call, writeLine0objMI, null)
// Increment counter by one.
myFCIL.Emit(OpCodes.Ldloc_S, v1)
myFCIL.Emit(OpCodes.Ldc_I4_1)
myFCIL.Emit OpCodes.Add
myFCIL.Emit(OpCodes.Stloc_S, v1)
// Determine if end of file list array has been reached.
myFCIL.MarkLabel evalForEachLabel
myFCIL.Emit(OpCodes.Ldloc_S, v1)
myFCIL.Emit(OpCodes.Ldloc_S, v3)
myFCIL.Emit OpCodes.Ldlen
myFCIL.Emit OpCodes.Conv_I4
myFCIL.Emit(OpCodes.Blt_S, topOfForEachLabel)
//foreach loop end here.
myFCIL.Emit(OpCodes.Ldstr, "---")
myFCIL.EmitCall(OpCodes.Call, writeLine0objMI, null)
myFCIL.Emit(OpCodes.Ldstr, "There are {0} files in {1}.")
myFCIL.Emit(OpCodes.Ldloc_S, v1)
myFCIL.Emit(OpCodes.Box, typeof<int>)
myFCIL.Emit(OpCodes.Ldloc_S, v0)
myFCIL.EmitCall(OpCodes.Call, writeLine2objMI, null)
myFCIL.Emit OpCodes.Ret
let myType = myTypeBuilder.CreateType()
myAsmBuilder.SetEntryPoint myFCMethod
myAsmBuilder.Save executableName
printfn "-- Method generated, type completed, and assembly saved to disk."
myType
printf "Enter a name for the file counting assembly: "
let executableNameNoExe = stdin.ReadLine()
let executableName = executableNameNoExe + ".exe"
printfn "---"
let domainDir = Environment.CurrentDirectory
let mutable curDomain = Thread.GetDomain()
// Create a new AppDomain, with the current directory as the base.
printfn $"Current Directory: {Environment.CurrentDirectory}"
let mySetupInfo = AppDomainSetup()
mySetupInfo.ApplicationBase <- domainDir
mySetupInfo.ApplicationName <- executableNameNoExe
mySetupInfo.LoaderOptimization <- LoaderOptimization.SingleDomain
let myDomain =
AppDomain.CreateDomain(executableNameNoExe, null, mySetupInfo)
printfn $"Creating a new AppDomain '{executableNameNoExe}'..."
printfn $"-- Base Directory = '{myDomain.BaseDirectory}'"
printfn $"-- Shadow Copy? = '{myDomain.ShadowCopyFiles}'"
printfn "---"
let myFCType =
createADynamicAssembly &curDomain executableNameNoExe
printfn $"Loading '{executableName}' from '{myDomain.BaseDirectory}'..."
let bFlags =
BindingFlags.Public ||| BindingFlags.CreateInstance ||| BindingFlags.Instance
let myObjInstance =
myDomain.CreateInstanceAndUnwrap(executableNameNoExe,
executableNameNoExe, false, bFlags,
null, null, null, null, null)
printfn $"Executing method 'CountLocalFiles' in {myObjInstance}..."
myFCType.InvokeMember("CountLocalFiles", BindingFlags.InvokeMethod, null, myObjInstance, [||])
Imports System.IO
Imports System.Threading
Imports System.Reflection
Imports System.Reflection.Emit
Imports System.Runtime.Remoting
Class ADDyno
Public Shared Function CreateADynamicAssembly(ByRef myNewDomain As AppDomain, executableNameNoExe As String) As Type
Dim executableName As String = executableNameNoExe + ".exe"
Dim myAsmName As New AssemblyName()
myAsmName.Name = executableNameNoExe
myAsmName.CodeBase = Environment.CurrentDirectory
Dim myAsmBuilder As AssemblyBuilder = myNewDomain.DefineDynamicAssembly(myAsmName, AssemblyBuilderAccess.RunAndSave)
Console.WriteLine("-- Dynamic Assembly instantiated.")
Dim myModBuilder As ModuleBuilder = myAsmBuilder.DefineDynamicModule(executableNameNoExe, executableName)
Dim myTypeBuilder As TypeBuilder = myModBuilder.DefineType(executableNameNoExe, TypeAttributes.Public, GetType(MarshalByRefObject))
Dim myFCMethod As MethodBuilder = myTypeBuilder.DefineMethod("CountLocalFiles", MethodAttributes.Public Or MethodAttributes.Static, Nothing, New Type() {})
Dim currentDirGetMI As MethodInfo = GetType(Environment).GetProperty("CurrentDirectory").GetGetMethod()
Dim writeLine0objMI As MethodInfo = GetType(Console).GetMethod("WriteLine", New Type() {GetType(String)})
Dim writeLine2objMI As MethodInfo = GetType(Console).GetMethod("WriteLine", New Type() {GetType(String), GetType(Object), GetType(Object)})
Dim getFilesMI As MethodInfo = GetType(Directory).GetMethod("GetFiles", New Type() {GetType(String)})
myFCMethod.InitLocals = True
Dim myFCIL As ILGenerator = myFCMethod.GetILGenerator()
Console.WriteLine("-- Generating MSIL method body...")
Dim v0 As LocalBuilder = myFCIL.DeclareLocal(GetType(String))
Dim v1 As LocalBuilder = myFCIL.DeclareLocal(GetType(Integer))
Dim v2 As LocalBuilder = myFCIL.DeclareLocal(GetType(String))
Dim v3 As LocalBuilder = myFCIL.DeclareLocal(GetType(String()))
Dim evalForEachLabel As Label = myFCIL.DefineLabel()
Dim topOfForEachLabel As Label = myFCIL.DefineLabel()
' Build the method body.
myFCIL.EmitCall(OpCodes.Call, currentDirGetMI, Nothing)
myFCIL.Emit(OpCodes.Stloc_S, v0)
myFCIL.Emit(OpCodes.Ldc_I4_0)
myFCIL.Emit(OpCodes.Stloc_S, v1)
myFCIL.Emit(OpCodes.Ldstr, "---")
myFCIL.EmitCall(OpCodes.Call, writeLine0objMI, Nothing)
myFCIL.Emit(OpCodes.Ldloc_S, v0)
myFCIL.EmitCall(OpCodes.Call, getFilesMI, Nothing)
myFCIL.Emit(OpCodes.Stloc_S, v3)
myFCIL.Emit(OpCodes.Br_S, evalForEachLabel)
' foreach loop starts here.
myFCIL.MarkLabel(topOfForEachLabel)
' Load array of strings and index, store value at index for output.
myFCIL.Emit(OpCodes.Ldloc_S, v3)
myFCIL.Emit(OpCodes.Ldloc_S, v1)
myFCIL.Emit(OpCodes.Ldelem_Ref)
myFCIL.Emit(OpCodes.Stloc_S, v2)
myFCIL.Emit(OpCodes.Ldloc_S, v2)
myFCIL.EmitCall(OpCodes.Call, writeLine0objMI, Nothing)
' Increment counter by one.
myFCIL.Emit(OpCodes.Ldloc_S, v1)
myFCIL.Emit(OpCodes.Ldc_I4_1)
myFCIL.Emit(OpCodes.Add)
myFCIL.Emit(OpCodes.Stloc_S, v1)
' Determine if end of file list array has been reached.
myFCIL.MarkLabel(evalForEachLabel)
myFCIL.Emit(OpCodes.Ldloc_S, v1)
myFCIL.Emit(OpCodes.Ldloc_S, v3)
myFCIL.Emit(OpCodes.Ldlen)
myFCIL.Emit(OpCodes.Conv_I4)
myFCIL.Emit(OpCodes.Blt_S, topOfForEachLabel)
'foreach loop end here.
myFCIL.Emit(OpCodes.Ldstr, "---")
myFCIL.EmitCall(OpCodes.Call, writeLine0objMI, Nothing)
myFCIL.Emit(OpCodes.Ldstr, "There are {0} files in {1}.")
myFCIL.Emit(OpCodes.Ldloc_S, v1)
myFCIL.Emit(OpCodes.Box, GetType(Integer))
myFCIL.Emit(OpCodes.Ldloc_S, v0)
myFCIL.EmitCall(OpCodes.Call, writeLine2objMI, Nothing)
myFCIL.Emit(OpCodes.Ret)
Dim myType As Type = myTypeBuilder.CreateType()
myAsmBuilder.SetEntryPoint(myFCMethod)
myAsmBuilder.Save(executableName)
Console.WriteLine("-- Method generated, type completed, and assembly saved to disk.")
Return myType
End Function 'CreateADynamicAssembly
Public Shared Sub Main()
Dim executableName As String = Nothing
Dim domainDir As String
Console.Write("Enter a name for the file counting assembly: ")
Dim executableNameNoExe As String = Console.ReadLine()
executableName = executableNameNoExe + ".exe"
Console.WriteLine("---")
domainDir = Environment.CurrentDirectory
Dim curDomain As AppDomain = Thread.GetDomain()
' Create a new AppDomain, with the current directory as the base.
Console.WriteLine("Current Directory: {0}", Environment.CurrentDirectory)
Dim mySetupInfo As New AppDomainSetup()
mySetupInfo.ApplicationBase = domainDir
mySetupInfo.ApplicationName = executableNameNoExe
mySetupInfo.LoaderOptimization = LoaderOptimization.SingleDomain
Dim myDomain As AppDomain = AppDomain.CreateDomain(executableNameNoExe, Nothing, mySetupInfo)
Console.WriteLine("Creating a new AppDomain '{0}'...", executableNameNoExe)
Console.WriteLine("-- Base Directory = '{0}'", myDomain.BaseDirectory)
Console.WriteLine("-- Shadow Copy? = '{0}'", myDomain.ShadowCopyFiles)
Console.WriteLine("---")
Dim myFCType As Type = CreateADynamicAssembly(curDomain, executableNameNoExe)
Console.WriteLine("Loading '{0}' from '{1}'...", executableName, myDomain.BaseDirectory.ToString())
Dim bFlags As BindingFlags = BindingFlags.Public Or BindingFlags.CreateInstance Or BindingFlags.Instance
Dim myObjInstance As [Object] = myDomain.CreateInstanceAndUnwrap(executableNameNoExe, executableNameNoExe, False, bFlags, Nothing, Nothing, Nothing, Nothing, Nothing)
Console.WriteLine("Executing method 'CountLocalFiles' in {0}...", myObjInstance.ToString())
myFCType.InvokeMember("CountLocalFiles", BindingFlags.InvokeMethod, Nothing, myObjInstance, New Object() {})
End Sub
End Class
