From 443293aaf09eca7c3b88d621d056c4effee2c248 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Thu, 10 May 2012 17:54:18 +0200
Subject: 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.
---
 cli/semantics/class.hxx | 86 ++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 85 insertions(+), 1 deletion(-)

(limited to 'cli/semantics/class.hxx')

diff --git a/cli/semantics/class.hxx b/cli/semantics/class.hxx
index be0b9f9..f5f12c8 100644
--- a/cli/semantics/class.hxx
+++ b/cli/semantics/class.hxx
@@ -6,17 +6,101 @@
 #ifndef CLI_SEMANTICS_CLASS_HXX
 #define CLI_SEMANTICS_CLASS_HXX
 
+#include <vector>
+
 #include <semantics/elements.hxx>
 
 namespace semantics
 {
+  class class_;
+
+  class inherits: public edge
+  {
+  public:
+    class_&
+    base () const
+    {
+      return *base_;
+    }
+
+    class_&
+    derived () const
+    {
+      return *derived_;
+    }
+
+  public:
+    void
+    set_left_node (class_& n)
+    {
+      derived_ = &n;
+    }
+
+    void
+    set_right_node (class_& n)
+    {
+      base_ = &n;
+    }
+
+  protected:
+    class_* base_;
+    class_* derived_;
+  };
+
   class class_: public scope
   {
+  private:
+    typedef std::vector<inherits*> inherits_list;
+
+  public:
+    bool
+    abstract () const
+    {
+      return abstract_;
+    }
+
+    void
+    abstract (bool a)
+    {
+      abstract_ = a;
+    }
+
+  public:
+    typedef pointer_iterator<inherits_list::const_iterator> inherits_iterator;
+
+    inherits_iterator
+    inherits_begin () const
+    {
+      return inherits_.begin ();
+    }
+
+    inherits_iterator
+    inherits_end () const
+    {
+      return inherits_.end ();
+    }
+
   public:
     class_ (path const& file, size_t line, size_t column)
-        : node (file, line, column)
+        : node (file, line, column), abstract_ (false)
+    {
+    }
+
+    void
+    add_edge_left (inherits& e)
     {
+      inherits_.push_back (&e);
     }
+
+    void
+    add_edge_right (inherits&) {}
+
+    using scope::add_edge_left;
+    using scope::add_edge_right;
+
+  private:
+    bool abstract_;
+    inherits_list inherits_;
   };
 }
 
-- 
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