public void GetToken()
{
ConstructorBuilder cb = genClass.DefineConstructor(
0, 0, new Type [1] {
typeof(int)
});
cb.GetILGenerator().Emit(OpCodes.Ret);
MethodToken tokenA = cb.GetToken();
Assert.IsFalse(tokenA == MethodToken.Empty, "#1");
genClass.CreateType();
MethodToken tokenB = cb.GetToken();
Assert.AreEqual(tokenA, tokenB, "#2");
}
static public ConstructorInfo GetNativeConstructorInfo(this ConstructorBuilder item)
{
if (item.IsCreated())
{
return(item.DeclaringType
.GetNativeInstanceConstructors()
.FindOnly(m => m.MetadataToken == item.GetToken().Token));
}
return(item);
}
internal MyConstructorBuilder()
{
// <Snippet1>
// <Snippet3>
MethodBuilder myMethodBuilder = null;
AppDomain myCurrentDomain = AppDomain.CurrentDomain;
// Create assembly in current CurrentDomain.
AssemblyName myAssemblyName = new AssemblyName();
myAssemblyName.Name = "TempAssembly";
// Create a dynamic assembly.
myAssemblyBuilder = myCurrentDomain.DefineDynamicAssembly
(myAssemblyName, AssemblyBuilderAccess.Run);
// Create a dynamic module in the assembly.
myModuleBuilder = myAssemblyBuilder.DefineDynamicModule("TempModule");
// Create a type in the module.
TypeBuilder myTypeBuilder = myModuleBuilder.DefineType("TempClass", TypeAttributes.Public);
FieldBuilder myGreetingField = myTypeBuilder.DefineField("Greeting",
typeof(String), FieldAttributes.Public);
Type[] myConstructorArgs = { typeof(String) };
// <Snippet2>
// <Snippet4>
// Define a constructor of the dynamic class.
ConstructorBuilder myConstructorBuilder = myTypeBuilder.DefineConstructor(
MethodAttributes.Public, CallingConventions.Standard, myConstructorArgs);
// Get a reference to the module that contains this constructor.
Module myModule = myConstructorBuilder.GetModule();
Console.WriteLine("Module Name : " + myModule.Name);
// Get the 'MethodToken' that represents the token for this constructor.
MethodToken myMethodToken = myConstructorBuilder.GetToken();
Console.WriteLine("Constructor Token is : " + myMethodToken.Token);
// Get the method implementation flags for this constructor.
MethodImplAttributes myMethodImplAttributes = myConstructorBuilder.GetMethodImplementationFlags();
Console.WriteLine("MethodImplAttributes : " + myMethodImplAttributes);
// </Snippet3>
// </Snippet2>
// </Snippet1>
// Generate IL for the method, call its base class constructor and store the arguments
// in the private field.
ILGenerator myILGenerator3 = myConstructorBuilder.GetILGenerator();
myILGenerator3.Emit(OpCodes.Ldarg_0);
ConstructorInfo myConstructorInfo = typeof(Object).GetConstructor(new Type[0]);
myILGenerator3.Emit(OpCodes.Call, myConstructorInfo);
myILGenerator3.Emit(OpCodes.Ldarg_0);
myILGenerator3.Emit(OpCodes.Ldarg_1);
myILGenerator3.Emit(OpCodes.Stfld, myGreetingField);
myILGenerator3.Emit(OpCodes.Ret);
// Add a method to the type.
myMethodBuilder = myTypeBuilder.DefineMethod
("HelloWorld", MethodAttributes.Public, null, null);
// Generate IL for the method.
ILGenerator myILGenerator2 = myMethodBuilder.GetILGenerator();
myILGenerator2.EmitWriteLine("Hello World from global");
myILGenerator2.Emit(OpCodes.Ret);
myModuleBuilder.CreateGlobalFunctions();
myType1 = myTypeBuilder.CreateType();
// Get the parameters of this constructor.
ParameterInfo[] myParameterInfo = myConstructorBuilder.GetParameters();
for (int i = 0; i < myParameterInfo.Length; i++)
{
Console.WriteLine("Declaration type : " + myParameterInfo[i].Member.DeclaringType);
}
// </Snippet4>
}