# HG changeset patch
# User John Arbash Meinel <john@arbash-meinel.com>
# Date 1147985575 25200
# Node ID d01eac5968c696ef95e2dba318bc0957f78e7f32
# Parent  b2f37c7026ca3f21951d3b6d439094a90d8be92a
demandload: implement __call__
demandload can now load functions and classes, and not just modules.

(So if you access foo() rather than just foo.* it still works).

demandload still doesn't work for constants.

diff --git a/mercurial/demandload.py b/mercurial/demandload.py
--- a/mercurial/demandload.py
+++ b/mercurial/demandload.py
@@ -81,6 +81,10 @@ class _replacer_from(_replacer):
 
         return getattr(importer.module(), target)
 
+    def __call__(self, *args, **kwargs):
+        target = object.__getattribute__(self, 'module')()
+        return target(*args, **kwargs)
+
 def demandload(scope, modules):
     '''import modules into scope when each is first used.