Implement attribute parsing

include/cppast/cpp_attribute.hpp

@@ -17,6 +17,8 @@ namespace cppast
     /// The known C++ attributes.
     enum class cpp_attribute_kind
     {
+        // update get_attribute_kind() in tokenizer, when updating this
+
         alignas_,
         carries_dependency,
         deprecated,
@@ -52,6 +54,8 @@ namespace cppast
             case cpp_attribute_kind::unknown:
                 return "unknown";
             }
+
+            return "<error>";
         }
     } // namespace detail
 

include/cppast/cpp_class.hpp

@@ -144,17 +144,19 @@ namespace cppast
             }
 
             /// \effects Builds a [cppast::cpp_base_class]() and adds it.
-            void base_class(std::string name, std::unique_ptr<cpp_type> type,
-                            cpp_access_specifier_kind access, bool is_virtual)
+            cpp_base_class& base_class(std::string name, std::unique_ptr<cpp_type> type,
+                                       cpp_access_specifier_kind access, bool is_virtual)
             {
-                add_base_class(
+                return add_base_class(
                     cpp_base_class::build(std::move(name), std::move(type), access, is_virtual));
             }
 
             /// \effects Adds a new base class.
-            void add_base_class(std::unique_ptr<cpp_base_class> base) noexcept
+            cpp_base_class& add_base_class(std::unique_ptr<cpp_base_class> base) noexcept
             {
+                auto bptr = base.get();
                 class_->bases_.push_back(*class_, std::move(base));
+                return *bptr;
             }
 
             /// \effects Builds a [cppast::cpp_access_specifier]() and adds it.

include/cppast/cpp_entity.hpp

@@ -136,6 +136,12 @@ namespace cppast
             attributes_.push_back(std::move(attr));
         }
 
+        /// \effects Adds multiple arguments for that entity.
+        void add_attribute(const cpp_attribute_list& list) noexcept
+        {
+            attributes_.insert(attributes_.end(), list.begin(), list.end());
+        }
+
         /// \returns The specified user data.
         void* user_data() const noexcept
         {