# HG changeset patch
# User Anton Shestakov <engored@ya.ru>
# Date 1410174778 -32400
# Node ID 293930a1fa0a52d9bef832e72ef4c505b74e0c64
# Parent  2dd1cbee569db9c04c4be2e8342bba2c576a4337
templater: implement __len__ for _hybrid

Objects of class _hybrid are returned by such template keywords as children,
bookmarks, tags and others, and also by revset() template function. They are
representing "list of strings" (as hg help template says) for use in templates.
So it would be logical to implement a handy way to count the number of strings
in such list, and that's what __len__ method does.

diff -r 2dd1cbee569d -r 293930a1fa0a mercurial/templatekw.py
--- a/mercurial/templatekw.py	Fri Sep 05 19:54:26 2014 +0200
+++ b/mercurial/templatekw.py	Mon Sep 08 20:12:58 2014 +0900
@@ -26,6 +26,8 @@
     def __call__(self):
         for x in self.values:
             yield x
+    def __len__(self):
+        return len(self.values)
 
 def showlist(name, values, plural=None, element=None, **args):
     if not element: