From 4bacd14b41c8f81ea55bb009fb41c34292139196 Mon Sep 17 00:00:00 2001
From: "Eric S. Raymond" <esr@thyrsus.com>
Date: Sat, 15 Nov 2014 08:45:25 -0500
Subject: [PATCH] succ() and pred() are now only called when building links.

Regression test passes.
---
 src | 22 ++++++++++------------
 1 file changed, 10 insertions(+), 12 deletions(-)

diff --git a/src b/src
index b4bd39a..206be54 100755
--- a/src
+++ b/src
@@ -214,23 +214,21 @@ class History:
     def current_branch(self, backwards=False):
         "Return a list of items that are descendants or ancestors of current."
         if debug >= DEBUG_SEQUENCE:
-            print "current_branch(%s)" % self.current().native
-        p = s = self.current().revno
-        selection = [self.by_revno(p)]
+            print "current_branch(%s)" % self.current()
+        p = self.current()
+        selection = [p]
         while True:
-            rev = self.revno_to_native(p)
-            rev = backend.pred(rev)
-            p = self.native_to_revno(rev)
-            if p is None:
+            if p.parent is None:
                 break
-            selection = [self.by_revno(p)] + selection
+            else:
+                p = p.parent
+            selection = [p] + selection
+        s = self.current()
         while True:
-            rev = self.revno_to_native(s)
-            rev = backend.succ(rev)
-            s = self.native_to_revno(rev)
+            s = s.child
             if s is None:
                 break
-            selection.append(self.by_revno(s))
+            selection.append(s)
         if backwards:
             selection.reverse()
         return selection
-- 
2.43.0