1 files changed, 145 insertions, 0 deletions
diff --git a/libxsd-frontend/xsd-frontend/semantic-graph/particle.hxx b/libxsd-frontend/xsd-frontend/semantic-graph/particle.hxx
new file mode 100644
index 0000000..df48de4
--- /dev/null
+++ b/libxsd-frontend/xsd-frontend/semantic-graph/particle.hxx
@@ -0,0 +1,145 @@
+// file      : xsd-frontend/semantic-graph/particle.hxx
+// author    : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : Copyright (c) 2006-2010 Code Synthesis Tools CC
+// license   : GNU GPL v2 + exceptions; see accompanying LICENSE file
+
+#ifndef XSD_FRONTEND_SEMANTIC_GRAPH_PARTICLE_HXX
+#define XSD_FRONTEND_SEMANTIC_GRAPH_PARTICLE_HXX
+
+#include <xsd-frontend/semantic-graph/elements.hxx>
+
+namespace XSDFrontend
+{
+  namespace SemanticGraph
+  {
+    //
+    //
+    class Particle;
+    class Compositor;
+
+
+    //
+    //
+    class ContainsParticle: public virtual Edge
+    {
+    public:
+      Particle&
+      particle () const
+      {
+        return *particle_;
+      }
+
+      Compositor&
+      compositor () const
+      {
+        return *compositor_;
+      }
+
+    public:
+      UnsignedLong
+      min () const
+      {
+        return min_;
+      }
+
+      UnsignedLong
+      max () const
+      {
+        return max_;
+      }
+
+    protected:
+      friend class Bits::Graph<Node, Edge>;
+
+      ContainsParticle (UnsignedLong min, UnsignedLong max);
+
+      Void
+      set_left_node (Compositor& n)
+      {
+        compositor_ = &n;
+      }
+
+      Void
+      set_right_node (Particle& n)
+      {
+        particle_ = &n;
+      }
+
+      Void
+      clear_left_node (Compositor& n)
+      {
+        assert (compositor_ == &n);
+        compositor_ = 0;
+      }
+
+      Void
+      clear_right_node (Particle& n)
+      {
+        assert (particle_ == &n);
+        particle_ = 0;
+      }
+
+    private:
+      Particle* particle_;
+      Compositor* compositor_;
+      UnsignedLong min_, max_;
+    };
+
+    //
+    //
+    class Particle: public virtual Node
+    {
+    public:
+      Boolean
+      contained_particle_p ()
+      {
+        return contained_particle_ != 0;
+      }
+
+      ContainsParticle&
+      contained_particle ()
+      {
+        assert (contained_particle_ != 0);
+        return *contained_particle_;
+      }
+
+    public:
+      UnsignedLong
+      min () const
+      {
+        assert (contained_particle_ != 0);
+        return contained_particle_->min ();
+      }
+
+      UnsignedLong
+      max () const
+      {
+        assert (contained_particle_ != 0);
+        return contained_particle_->max ();
+      }
+
+    protected:
+      friend class Bits::Graph<Node, Edge>;
+
+      Particle ();
+
+      Void
+      add_edge_right (ContainsParticle& e)
+      {
+        contained_particle_ = &e;
+      }
+
+      Void
+      remove_edge_right (ContainsParticle& e)
+      {
+        assert (contained_particle_ == &e);
+        contained_particle_ = 0;
+      }
+
+    private:
+      ContainsParticle* contained_particle_;
+    };
+  }
+}
+
+#endif  // XSD_FRONTEND_SEMANTIC_GRAPH_PARTICLE_HXX