From: Armin Ronacher <armin.ronacher@active-4.com>
Date: Sun, 25 Oct 2009 12:03:08 +0000 (+0100)
Subject: Shortcut for the if inner visit for empty branches.
X-Git-Tag: 2.3~48
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=1965e31075515c6b261a709e08314943b97a9498;p=jinja2.git

Shortcut for the if inner visit for empty branches.

--HG--
branch : trunk
---

diff --git a/jinja2/compiler.py b/jinja2/compiler.py
index 2dd68cd..a6f26a5 100644
--- a/jinja2/compiler.py
+++ b/jinja2/compiler.py
@@ -278,6 +278,8 @@ class FrameIdentifierVisitor(NodeVisitor):
                     real_identifiers.declared_parameter
 
         def inner_visit(nodes):
+            if not nodes:
+                return set()
             self.identifiers = real_identifiers.copy()
             for subnode in nodes:
                 self.visit(subnode)