# HG changeset patch
# User Gregory Szorc <gregory.szorc@gmail.com>
# Date 2018-09-17 23:00:09
# Node ID 040007cd3d81534d7e7890c931dca84e0d8046a2
# Parent  d27fde3e023e90b14dd6d7330fa22de03757c670

transaction: make releasefn a private attribute

This is a handle on a callable that is called when the journal
is closed. The value is specified at __init__ time. It doesn't
need to be exposed on the public interface. So mark it as private.

Differential Revision: https://phab.mercurial-scm.org/D4626

diff --git a/mercurial/transaction.py b/mercurial/transaction.py
--- a/mercurial/transaction.py
+++ b/mercurial/transaction.py
@@ -143,7 +143,7 @@ class transaction(util.transactional):
         # A callback to do something just after releasing transaction.
         if releasefn is None:
             releasefn = lambda tr, success: None
-        self.releasefn = releasefn
+        self._releasefn = releasefn
 
         self.checkambigfiles = set()
         if checkambigfiles:
@@ -513,8 +513,8 @@ class transaction(util.transactional):
         self._backupentries = []
         self._journal = None
 
-        self.releasefn(self, True) # notify success of closing transaction
-        self.releasefn = None # Help prevent cycles.
+        self._releasefn(self, True) # notify success of closing transaction
+        self._releasefn = None # Help prevent cycles.
 
         # run post close action
         categories = sorted(self._postclosecallback)
@@ -586,8 +586,8 @@ class transaction(util.transactional):
                 self.report(_("rollback failed - please run hg recover\n"))
         finally:
             self._journal = None
-            self.releasefn(self, False) # notify failure of transaction
-            self.releasefn = None # Help prevent cycles.
+            self._releasefn(self, False) # notify failure of transaction
+            self._releasefn = None # Help prevent cycles.
 
 def rollback(opener, vfsmap, file, report, checkambigfiles=None):
     """Rolls back the transaction contained in the given file