disallow temporaries to bind to non-const references

alib2abstraction/src/abstraction/ValueHolderInterface.hpp

@@ -29,6 +29,10 @@ public:
 		return m_isConst;
 	}
+	bool isRef ( ) const {
+		return isRvalueRef ( ) || isLvalueRef ( );
+	}
+
 	bool isRvalueRef ( ) const {
 		return m_isRvalueRef;
 	}
@@ -73,7 +77,12 @@ ParamType retrieveValue ( const std::shared_ptr < abstraction::Value > & param,
 			return std::move ( interface->getValue ( ) );
 		else
 			throw std::domain_error ( "Cannot bind without move" );
+	} else if constexpr ( std::is_lvalue_reference_v < ParamType > && std::is_const_v < std::remove_reference_t < ParamType > > ) {
+		Type && res = interface->getValue ( );
+		return res;
 	} else if constexpr ( std::is_lvalue_reference_v < ParamType > ) {
+		if ( interface->isAutoMove ( ) && ! interface->isRef ( ) )
+			throw std::domain_error ( "Cannot bind temporary to non-const reference" );
 		Type && res = interface->getValue ( );
 		return res;
 	} else if constexpr ( std::is_copy_constructible_v < Type > && std::is_move_constructible_v < Type > ) {