Add cpp_function_template

include/cppast/cpp_entity_kind.hpp

@@ -46,6 +46,7 @@ namespace cppast
         template_template_parameter_t,
 
         alias_template_t,
+        function_template_t,
 
         count,
     };

include/cppast/cpp_function.hpp

@@ -112,6 +112,13 @@ namespace cppast
                 return std::move(function);
             }
 
+            /// \returns The finished function without registering it.
+            /// \notes This is intended for templated functions only.
+            std::unique_ptr<T> finish()
+            {
+                return std::move(function);
+            }
+
         protected:
             basic_builder()           = default;
             ~basic_builder() noexcept = default;

include/cppast/cpp_function_template.hpp

@@ -0,0 +1,42 @@
+// 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_FUNCTION_TEMPLATE_HPP_INCLUDED
+#define CPPAST_CPP_FUNCTION_TEMPLATE_HPP_INCLUDED
+
+#include <cppast/cpp_function.hpp>
+#include <cppast/cpp_template.hpp>
+
+namespace cppast
+{
+    /// A [cppast::cpp_entity]() modelling a function template.
+    class cpp_function_template final : public cpp_template
+    {
+    public:
+        /// Builder for [cppast::cpp_function_template]().
+        class builder : public basic_builder<cpp_function_template, cpp_function_base>
+        {
+        public:
+            using basic_builder::basic_builder;
+        };
+
+        /// A reference to the function that is being templated.
+        const cpp_function_base& function() const noexcept
+        {
+            return static_cast<const cpp_function_base&>(*begin());
+        }
+
+    private:
+        cpp_function_template(std::unique_ptr<cpp_function_base> func)
+        : cpp_template(std::unique_ptr<cpp_entity>(func.release()))
+        {
+        }
+
+        cpp_entity_kind do_get_entity_kind() const noexcept override;
+
+        friend basic_builder<cpp_function_template, cpp_function_base>;
+    };
+} // namespace cppast
+
+#endif // CPPAST_CPP_FUNCTION_TEMPLATE_HPP_INCLUDED