# HG changeset patch
# User Augie Fackler <augie@google.com>
# Date 2017-03-12 05:49:19
# Node ID 279430eeefdb76edcbe1f219f5ebb2c274802b71
# Parent  2a18e9e6ca439d08e305769b1f1de841aad7fc13

branchmap: don't use buffer() on Python 3

This is certainly slower than the Python 2 code, but it works, and we
can revisit it later if it's a problem.

diff --git a/mercurial/branchmap.py b/mercurial/branchmap.py
--- a/mercurial/branchmap.py
+++ b/mercurial/branchmap.py
@@ -409,7 +409,7 @@ class revbranchcache(object):
         # fast path: extract data from cache, use it if node is matching
         reponode = changelog.node(rev)[:_rbcnodelen]
         cachenode, branchidx = unpack(
-            _rbcrecfmt, buffer(self._rbcrevs, rbcrevidx, _rbcrecsize))
+            _rbcrecfmt, util.buffer(self._rbcrevs, rbcrevidx, _rbcrecsize))
         close = bool(branchidx & _rbccloseflag)
         if close:
             branchidx &= _rbcbranchidxmask