added Class::implements() method to allow classes that implement interfaces (request from issue #52)

3 files changed, 11 insertions, 6 deletions

diff --git a/include/class.h b/include/class.h
index 8bc034c..8c78069 100644
--- a/include/class.h
+++ b/include/class.h
@@ -186,7 +186,7 @@ public:
      *  @param  interface   Interface object
      *  @return Class       Same object to allow chaining
      */
-//    Class<T> &implements(const Interface &interface) { ClassBase::implements(interface); return *this; }
+    Class<T> &implements(const Interface &interface) { ClassBase::implements(interface); return *this; }
     
     /**
      *  Add a base class
diff --git a/include/classbase.h b/include/classbase.h
index e399efe..c2a9022 100644
--- a/include/classbase.h
+++ b/include/classbase.h
@@ -259,7 +259,7 @@ protected:
      *  Add an interface
      *  @param  interface       Interface object
      */
-//    void implements(const ClassBase &interface) { _interfaces.push_back(&interface); }
+    void implements(const ClassBase &interface);
 
     /**
      *  Set the base class
@@ -268,7 +268,6 @@ protected:
 //    void extends(const std::string &name) { _base = name; }
 
 private:
-
     /**
      *  Pointer to the actual implementation
      *  @var    std::shared_ptr<ClassImpl>
diff --git a/include/interface.h b/include/interface.h
index 36f4d50..32462c8 100644
--- a/include/interface.h
+++ b/include/interface.h
@@ -41,12 +41,18 @@ public:
         // return self
         return *this;
     }
-
-private:
+    
     /**
-     *  Namespaces have access to the private base class
+     *  The namespace needs to have access to the private ClassBase base
+     *  class, to actually register the interface.
      */
     friend class Namespace;
+    
+    /**
+     *  All Php::Class<AnyThing> also need access to the base class to
+     *  register an interface.
+     */
+    template<typename ANYTHING> friend class Class;
 };
 
 /**