Implement option class inheritance

For now multiple, non-virtual inheritance is supported. An option class
can now also be declared abstract using the class c = 0 {...}; syntax.
New option, --exclude-base, controls whether base class information is
present in usage and documentation.

1 files changed, 15 insertions, 0 deletions

diff --git a/cli/traversal/class.hxx b/cli/traversal/class.hxx
index ef4433e..37f5f64 100644
--- a/cli/traversal/class.hxx
+++ b/cli/traversal/class.hxx
@@ -11,6 +11,15 @@
 
 namespace traversal
 {
+  struct inherits: edge<semantics::inherits>
+  {
+    inherits () {}
+    inherits (node_dispatcher& n) {node_traverser (n);}
+
+    virtual void
+    traverse (type&);
+  };
+
   struct class_: scope_template<semantics::class_>
   {
     virtual void
@@ -20,6 +29,12 @@ namespace traversal
     pre (type&);
 
     virtual void
+    inherits (type&);
+
+    virtual void
+    inherits (type&, edge_dispatcher&);
+
+    virtual void
     post (type&);
   };
 }