[Zodb-checkins] CVS: Zope3/src/zope/interface - implements.py:1.3

[Stephan Richter]

Update of /cvs-repository/Zope3/src/zope/interface
In directory cvs.zope.org:/tmp/cvs-serv9036/interface

Modified Files:
	implements.py 
Log Message:
The flattenInterface() method was buggy, but since no code used it so far, 
it was unnoticed. I added tests checking for the correct functionality. 


=== Zope3/src/zope/interface/implements.py 1.2 => 1.3 ===
--- Zope3/src/zope/interface/implements.py:1.2	Wed Dec 25 09:13:42 2002
+++ Zope3/src/zope/interface/implements.py	Tue Jan  7 07:14:53 2003
@@ -122,16 +122,19 @@
     return r
 
 def _flatten(i, append):
-    append(i)
-    bases = i.getBases()
-    if bases:
-        for b in bases:
-            _flatten(b, append)
+    if isinstance(i, (list, tuple)):
+        for iface in i:
+            _flatten(iface, append)
+    else:
+        append(i)
+        bases = i.getBases()
+        if bases:
+            for b in bases:
+                _flatten(b, append)
 
 def flattenInterfaces(interfaces, remove_duplicates=1):
     res = []
-    for i in interfaces:
-        _flatten(i, res.append)
+    _flatten(interfaces, res.append)
     if remove_duplicates:
         # Remove duplicates in reverse.
         # Similar to Python 2.2's method resolution order.