public void PrepareEncryptNativeMethods(ModuleWriterBase moduleWriter)
        {
            if (methodToNativeMethod.Count == 0)
            {
                return;
            }

            validNativeMethods = new List <MethodDef>(methodToNativeMethod.Count);
            int len = 12;

            foreach (var kv in methodToNativeMethod)
            {
                if (kv.Key.DeclaringType == null)
                {
                    continue;                           // Method was removed
                }
                if (kv.Key.DeclaringType.Module != module)
                {
                    continue;                           // method.DeclaringType was removed
                }
                validNativeMethods.Add(kv.Key);
                len += 3 * 4 + kv.Value.Length;
            }
            if (validNativeMethods.Count == 0)
            {
                return;
            }

            len = (len & ~15) + 16;
            encryptedResource.SetNewResource(new byte[len]);
        }