Correct enum code

Author: martinfantini

src/mfast/enum_ref.h

@@ -45,6 +45,15 @@ class MFAST_EXPORT enum_cref : public field_cref {
   }
   bool is_boolean() const;
 
+protected:
+  friend class mfast::detail::codec_helper;
+
+  void save_to(value_storage &v) const {
+    v.of_uint64.content_ = this->storage()->of_uint64.content_;
+    v.defined(true);
+    v.present(this->present());
+  }
+
 private:
   enum_cref &operator=(const enum_cref &);
 };
@@ -70,6 +79,7 @@ class enum_mref : public make_field_mref<enum_cref> {
 
   enum_mref(const enum_mref &) = default;
 
+  explicit enum_mref(const field_mref_base &other) : base_type(other) {}
   void as(const enum_cref &cref) const {
     if (cref.absent()) {
       this->omit();

src/mfast/ext_ref.h

@@ -250,12 +250,10 @@ class ext_mref : public ext_ref_properties<OpType, Properties> {
       storage->present(true);
     }
     return mref_type(base_);
-    ;
   }
 
   cref_type get() const {
     return cref_type(base_);
-    ;
   }
 
   bool present() const { return !this->optional() || base_.present(); }