Catch missing virtual destructors, enable g++ warnings

CMakeLists.txt

@@ -89,7 +89,7 @@ if(MSVC)
   add_definitions(/W4)
   add_definitions(/bigobj)
 else()
-  add_definitions(-Wall -Wextra -Wshadow -pedantic ${CPP11_FLAG})
+  add_definitions(-Wall -Wextra -Wshadow -Wnon-virtual-dtor -pedantic ${CPP11_FLAG})
   
   if (APPLE)
     add_definitions(-Wno-sign-compare)

include/chaiscript/dispatchkit/any.hpp

@@ -42,6 +42,7 @@ namespace chaiscript {
       private:
         struct Data
         {
+          virtual ~Data() {}
           virtual void *data() = 0;
           virtual const std::type_info &type() const = 0;
           virtual std::shared_ptr<Data> clone() const = 0;
@@ -56,6 +57,8 @@ namespace chaiscript {
             {
             }
 
+            virtual ~Data_Impl() {}
+
             virtual void *data()
             {
               return &m_data;
@@ -94,9 +97,9 @@ namespace chaiscript {
         }
 
         template<typename ValueType> 
-          Any(const ValueType &t_value)
+        Any(const ValueType &t_value)
+          : m_data(std::shared_ptr<Data>(new Data_Impl<ValueType>(t_value)))
         {
-          m_data = std::shared_ptr<Data>(new Data_Impl<ValueType>(t_value));
         }
 
         Any & operator=(const Any &t_any)

include/chaiscript/dispatchkit/proxy_functions.hpp

@@ -39,6 +39,7 @@ namespace chaiscript
     {
       public:
         virtual ~Proxy_Function_Base() {}
+
         Boxed_Value operator()(const std::vector<Boxed_Value> &params, const chaiscript::Dynamic_Cast_Conversions &t_conversions) const
         {
           Boxed_Value bv = do_call(params, t_conversions);
@@ -205,6 +206,8 @@ namespace chaiscript
         {
         }
 
+        virtual ~Dynamic_Proxy_Function() {}
+
         virtual bool operator==(const Proxy_Function_Base &rhs) const
         {
           const Dynamic_Proxy_Function *prhs = dynamic_cast<const Dynamic_Proxy_Function *>(&rhs);
@@ -221,9 +224,6 @@ namespace chaiscript
             && test_guard(vals, t_conversions);
         }    
 
-        virtual ~Dynamic_Proxy_Function() {}
-
-
         virtual int get_arity() const
         {
           return m_arity;