Add cpp_member_variable and cpp_bitfield

include/cppast/cpp_entity_kind.hpp

@@ -31,6 +31,8 @@ namespace cppast
         base_class_t,
 
         variable_t,
+        member_variable_t,
+        bitfield_t,
 
         function_parameter_t,
         function_t,

include/cppast/cpp_member_variable.hpp

@@ -0,0 +1,79 @@
+// Copyright (C) 2017 Jonathan Müller <jonathanmueller.dev@gmail.com>
+// This file is subject to the license terms in the LICENSE file
+// found in the top-level directory of this distribution.
+
+#ifndef CPPAST_CPP_MEMBER_VARIABLE_HPP_INCLUDED
+#define CPPAST_CPP_MEMBER_VARIABLE_HPP_INCLUDED
+
+#include <cppast/cpp_variable_base.hpp>
+
+namespace cppast
+{
+    /// Base class for all kinds of member variables.
+    class cpp_member_variable_base : public cpp_variable_base
+    {
+    public:
+        /// \returns Whether or not the member variable is declared `mutable`.
+        bool is_mutable() const noexcept
+        {
+            return mutable_;
+        }
+
+    protected:
+        cpp_member_variable_base(std::string name, std::unique_ptr<cpp_type> type,
+                                 std::unique_ptr<cpp_expression> def, bool is_mutable)
+        : cpp_variable_base(std::move(name), std::move(type), std::move(def)), mutable_(is_mutable)
+        {
+        }
+
+    private:
+        bool mutable_;
+    };
+
+    /// A [cppast::cpp_entity]() modelling a C++ member variable.
+    class cpp_member_variable final : public cpp_member_variable_base
+    {
+    public:
+        /// \returns A newly created and registered member variable.
+        /// \notes `def` may be `nullptr` in which case there is no member initializer provided.
+        static std::unique_ptr<cpp_member_variable> build(std::string                     name,
+                                                          std::unique_ptr<cpp_type>       type,
+                                                          std::unique_ptr<cpp_expression> def,
+                                                          bool is_mutable)
+        {
+            return std::unique_ptr<cpp_member_variable>(
+                new cpp_member_variable(std::move(name), std::move(type), std::move(def),
+                                        is_mutable));
+        }
+
+    private:
+        using cpp_member_variable_base::cpp_member_variable_base;
+
+        cpp_entity_kind do_get_entity_kind() const noexcept override;
+    };
+
+    /// A [cppast::cpp_entity]() modelling a C++ bitfield.
+    class cpp_bitfield final : public cpp_member_variable_base
+    {
+    public:
+        /// \returns The number of bits of the bitfield.
+        unsigned no_bits() const noexcept
+        {
+            return bits_;
+        }
+
+    private:
+        cpp_bitfield(std::string name, std::unique_ptr<cpp_type> type,
+                     std::unique_ptr<cpp_expression> def, unsigned no_bits, bool is_mutable)
+        : cpp_member_variable_base(std::move(name), std::move(type), std::move(def), is_mutable),
+          bits_(no_bits)
+        {
+        }
+
+        cpp_entity_kind do_get_entity_kind() const noexcept override;
+
+        unsigned bits_;
+    };
+} // namespace cppast
+
+#endif // CPPAST_CPP_MEMBER_VARIABLE_HPP_INCLUDED