# HG changeset patch
# User Pierre-Yves David <pierre-yves.david@octobus.net>
# Date 1512879424 -3600
# Node ID b67e0f676a288d049326d21779509ee60a4d2579
# Parent  a878d94068417758f4c8dfddd22dc950aec78156
stablerange: add an assert to detect buggy range

Nothing can be negative in there, we add an assert to make sure it is so.

diff -r a878d9406841 -r b67e0f676a28 hgext3rd/evolve/stablerange.py
--- a/hgext3rd/evolve/stablerange.py	Sun Dec 10 04:57:19 2017 +0100
+++ b/hgext3rd/evolve/stablerange.py	Sun Dec 10 05:17:04 2017 +0100
@@ -312,6 +312,7 @@
         return self.depthrev(repo, headrev) - index
 
     def subranges(self, repo, rangeid):
+        assert 0 <= rangeid[1] <= rangeid[0], rangeid
         cached = self._getsub(rangeid)
         if cached is not None:
             return cached