Turn internal type helpers into structs

[libs/datafile.git] / source / collection.h

diff --git a/source/collection.h b/source/collection.h
index be9ae88c491595f925db46e30aeff2daa67deb5f..1f4b5562107a338190cf221355692aaa4c64d04f 100644 (file)
--- a/source/collection.h
+++ b/source/collection.h
@@ -284,16 +284,13 @@ public:
 class CollectionItemTypeBase
 {
 protected:
-       class TagBase
+       struct TagBase
        {
-       protected:
-               TagBase() { }
-       public:
                virtual ~TagBase() { }
        };
 
        template<typename T>
-       class Tag: public TagBase
+       struct Tag: TagBase
        { };
 
        std::string kwd;
@@ -327,37 +324,28 @@ template<typename T>
 class CollectionItemType: public CollectionItemTypeBase
 {
 private:
-       class CreatorBase
+       struct CreatorBase
        {
-       protected:
-               CreatorBase() { }
-       public:
                virtual ~CreatorBase() { }
 
                virtual T *create(Collection &, const std::string &) const = 0;
        };
 
        template<typename C>
-       class Creator: public CreatorBase
+       struct Creator: CreatorBase
        {
-       public:
                typedef T *(C::*FuncPtr)(const std::string &);
 
-       private:
                FuncPtr func;
 
-       public:
                Creator(FuncPtr f): func(f) { }
 
                virtual T *create(Collection &coll, const std::string &name) const
                { return (static_cast<C &>(coll).*func)(name); }
        };
 
-       class StoreBase
+       struct StoreBase
        {
-       protected:
-               StoreBase() { }
-       public:
                virtual ~StoreBase() { }
 
                virtual void store(Collection &, const std::string &, T *) = 0;
@@ -366,9 +354,8 @@ private:
        };
 
        template<typename S>
-       class Store: public StoreBase
+       struct Store: StoreBase
        {
-       public:
                virtual void store(Collection &coll, const std::string &name, T *obj)
                { coll.add(name, static_cast<S *>(obj)); }