private IType CreateConcreteCallableType(Node sourceNode, AnonymousCallableType anonymousType)
{
var module = TypeSystemServices.GetCompilerGeneratedTypesModule();
var name = GenerateCallableTypeNameFrom(sourceNode, module);
ClassDefinition cd = My <CallableTypeBuilder> .Instance.CreateEmptyCallableDefinition(name);
cd.Annotate(AnonymousCallableTypeAnnotation);
cd.Modifiers |= TypeMemberModifiers.Public;
cd.LexicalInfo = sourceNode.LexicalInfo;
cd.Members.Add(CreateInvokeMethod(anonymousType));
Method beginInvoke = CreateBeginInvokeMethod(anonymousType);
cd.Members.Add(beginInvoke);
cd.Members.Add(CreateEndInvokeMethod(anonymousType));
AddGenericTypes(cd);
module.Members.Add(cd);
return((IType)cd.Entity);
}