3 files changed, 35 insertions, 1 deletions
diff --git a/lib/yard/mruby/code_objects/function_object.rb b/lib/yard/mruby/code_objects/function_object.rb
index 0a835b5..c726762 100644
--- a/lib/yard/mruby/code_objects/function_object.rb
+++ b/lib/yard/mruby/code_objects/function_object.rb
@@ -2,6 +2,14 @@ module YARD::MRuby::CodeObjects
 
   # A FunctionObject represents a MRuby C API function declaration inside a header inside an include directory
   class FunctionObject < YARD::CodeObjects::Base
+
+    # Returns the list of parameters parsed out of the method signature
+    # with their default values.
+    #
+    # @return [Array<Array(String, String)>] a list of parameter names followed
+    #   by their default values (or nil)
+    attr_accessor :parameters
+
     def initialize(header, name, &block)
       super
     end
@@ -14,6 +22,25 @@ module YARD::MRuby::CodeObjects
     def path
       self.name
     end
+
+    def attr_info
+      nil
+    end
+
+    def scope
+      ''
+    end
+
+    # Returns all alias names of the object
+    # @return [Array<Symbol>] the alias names
+    def aliases
+      list = []
+      return list unless namespace.is_a?(HeaderObject)
+      namespace.aliases.each do |o, aname|
+        list << o if aname == name && o.scope == scope
+      end
+      list
+    end
   end
 end
 
diff --git a/lib/yard/mruby/code_objects/header_object.rb b/lib/yard/mruby/code_objects/header_object.rb
index 519d76c..2e70230 100644
--- a/lib/yard/mruby/code_objects/header_object.rb
+++ b/lib/yard/mruby/code_objects/header_object.rb
@@ -14,5 +14,9 @@ module YARD::MRuby::CodeObjects
     def title
       super.to_s
     end
+
+    def inheritance_tree(*args)
+      return [self]
+    end
   end
 end
diff --git a/lib/yard/mruby/code_objects/headers_root.rb b/lib/yard/mruby/code_objects/headers_root.rb
index 45806ff..6522c9a 100644
--- a/lib/yard/mruby/code_objects/headers_root.rb
+++ b/lib/yard/mruby/code_objects/headers_root.rb
@@ -4,8 +4,11 @@ module YARD::MRuby::CodeObjects
     def headers
       children
     end
+
+    def inheritance_tree(*args)
+      return [self]
+    end
   end
 
   HEADERS_ROOT = HeadersRoot.new(:root, "headers")
-
 end