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changeset 44056:8e09551206f5

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transaction: add a `hasfinalize` method The method allow code to check if an existing callback exists. It allow them to skip potentially expensive setup for a callback. Differential Revision: https://phab.mercurial-scm.org/D7832
author Pierre-Yves David <pierre-yves.david@octobus.net>
date Sat, 11 Jan 2020 05:44:58 +0100
parents 7f67f53492f7
children 7dddc2251365
files mercurial/transaction.py
diffstat 1 files changed, 6 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- a/mercurial/transaction.py	Sat Jan 11 04:57:29 2020 +0100
+++ b/mercurial/transaction.py	Sat Jan 11 05:44:58 2020 +0100
@@ -456,6 +456,12 @@
         return self._anypending
 
     @active
+    def hasfinalize(self, category):
+        """check is a callback already exist for a category
+        """
+        return category in self._finalizecallback
+
+    @active
     def addfinalize(self, category, callback):
         """add a callback to be called when the transaction is closed