Changeset 1224

Timestamp:

Oct 17, 2010, 6:23:14 PM (12 years ago)

Author:

Peter Johansson

Message:

refs #476. Functions in Node structure that interacts with visitors.

Location:

branches/visitor/lib

Files:

• Directory.cc (modified) (2 diffs)
• Directory.h (modified) (2 diffs)
• File.cc (modified) (2 diffs)
• File.h (modified) (2 diffs)
• Node.h (modified) (2 diffs)

branches/visitor/lib/Directory.cc

@@ -27 +27 @@
 #include "html_utility.h"
 #include "Node.h"
+#include "NodeVisitor.h"
 #include "SVN.h"
 #include "SVNlog.h"
@@ -278 +279 @@
   }
 
+
+  void Directory::traverse(NodeVisitor& visitor)
+  {
+    visitor.enter(*this);
+    for (NodeIterator first=daughters_.begin(), end=daughters_.end();
+         first!=end; ++first)
+      (*first)->traverse(visitor);
+    visitor.leave(*this);
+  }
+
+
 }} // end of namespace svndigest and namespace theplu

branches/visitor/lib/Directory.h

@@ -32 +32 @@
 namespace theplu{
 namespace svndigest{
+
+  class NodeVisitor;
 
   ///
@@ -96 +98 @@
                          const std::map<int, svn_revnum_t>&) const;
 
+    /**
+       Calls visitor.enter(*this), traverses daughter nodes, and calls
+       visitor.leave(*this).
+     */
+    void traverse(NodeVisitor& visitor);
+
   private:
     /**

branches/visitor/lib/File.cc

@@ -30 +30 @@
 #include "html_utility.h"
 #include "HtmlStream.h"
+#include "NodeVisitor.h"
 #include "Stats.h"
 #include "SVNblame.h"
@@ -398 +399 @@
   }
 
+
+  void File::traverse(NodeVisitor& visitor)
+  {
+    visitor.visit(*this);
+  }
+
+
   void File::update_copyright(const std::string& new_block,
                               size_t start_at_line, size_t end_at_line) const

branches/visitor/lib/File.h

@@ -31 +31 @@
 namespace theplu{
 namespace svndigest{
+
+  class NodeVisitor;
 
   class File : public Node
@@ -77 +79 @@
     void print_copyright(std::map<std::string, Alias>&, bool verbose,
                          const std::map<int, svn_revnum_t>&) const;
+
+    /**
+       Let the visitor perform its mission via visitor(*this)
+     */
+    void traverse(NodeVisitor& visitor);
 
   private:

branches/visitor/lib/Node.h

@@ -40 +40 @@
 
   class Alias;
+  class NodeVisitor;
 
   ///
@@ -193 +194 @@
     */
     inline bool svndigest_ignore(void) const { return svndigest_ignore_; }
+
+    /**
+       Access point for a NodeVisitor to start traversing Node and its
+       daughter nodes.
+     */
+    virtual void traverse(NodeVisitor& visitor)=0;
 
     /**