public Type EmitClass(IEnumerable <Type> interfaceTypes,
Type baseType,
IEnumerable <MethodInfo> methodsToOverride,
IEnumerable <PropertyInfo> propertiesToOverride,
IEnumerable <EventInfo> eventsToOverride,
ConstructorInfo baseConstructor,
IEnumerable <CustomAttributeBuilder> attributeBuilders)
{
// Apply default values for parameters
if (baseType == null)
{
baseType = typeof(EmittedClassBase);
}
// Check limitations for this version
if (baseType != typeof(EmittedClassBase))
{
throw new NotImplementedException("The only supported baseType value is 'EmittedClassBase' in this version.");
}
if ((interfaceTypes == null) || (interfaceTypes.Count() != 1))
{
throw new NotImplementedException(
"Current implementation should be provided with exactly one single interface to implement.");
}
Type interfaceType = interfaceTypes.Single();
// Validate arguments
if (!interfaceType.IsInterface)
{
throw new ArgumentException("interfaceTypes can contain 'interface' types only. " + interfaceType.FullName +
" is not an interface.");
}
// Check if the component is initialized
if ((_moduleBuilder == null) || (_assemblyBuilder == null))
{
throw new InvalidOperationException("The DefaultClassEmitter component is not initialized properly.");
}
var uniqueTypeNumber = Interlocked.Increment(ref _typeNumber);
var typeName = DynamicTypePrefix + interfaceType.Name + uniqueTypeNumber;
var typeBuilder = _moduleBuilder.DefineType(
typeName,
TypeAttributes.Public
| TypeAttributes.Class
| TypeAttributes.AutoClass
| TypeAttributes.AnsiClass
| TypeAttributes.BeforeFieldInit
| TypeAttributes.AutoLayout,
typeof(EmittedClassBase),
new[] { interfaceType });
// Add custom attributes
if (attributeBuilders != null)
{
foreach (var builder in attributeBuilders)
{
typeBuilder.SetCustomAttribute(builder);
}
}
// Implement properties, events and methods
foreach (var propertyInfo in interfaceType.GetProperties())
{
PropertyEmitter.EmitProperty(typeBuilder, propertyInfo);
}
foreach (var eventInfo in interfaceType.GetEvents())
{
EventEmitter.EmitEvent(typeBuilder, eventInfo);
}
foreach (var methodInfo in interfaceType.GetMethods())
{
MethodBuilder methodBuilder = MethodEmitter.EmitMethod(
typeBuilder,
methodInfo.Name,
methodInfo.GetParameters().Select(pi => pi.ParameterType).ToArray(),
methodInfo.GetParameters().Select(pi => pi.IsOut).ToArray(),
methodInfo.ReturnType,
methodInfo.ReflectedType,
InterfaceMethodAttributes);
typeBuilder.DefineMethodOverride(methodBuilder, methodInfo);
}
var result = typeBuilder.CreateTypeInfo();
// if (SaveEmittedAssembly)
// _assemblyBuilder.Save(DynamicAssemblyName + ".dll");
return(result);
}
