# HG changeset patch
# User Yuya Nishihara <yuya@tcha.org>
# Date 1410960874 -32400
# Node ID 0a714a1f7d5c0d754e4c566a4372e391144854f8
# Parent  b9f7f3eeb99c206897beacc0eb323ab9c178e599
formatter: convert None to json null

It will be used by "annotate" command to represent the workingctx revision.

diff -r b9f7f3eeb99c -r 0a714a1f7d5c mercurial/formatter.py
--- a/mercurial/formatter.py	Sun Aug 17 11:35:31 2014 +0900
+++ b/mercurial/formatter.py	Wed Sep 17 22:34:34 2014 +0900
@@ -98,6 +98,8 @@
 def _jsonifyobj(v):
     if isinstance(v, tuple):
         return '[' + ', '.join(_jsonifyobj(e) for e in v) + ']'
+    elif v is None:
+        return 'null'
     elif v is True:
         return 'true'
     elif v is False: