# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1367169785 -7200
# Node ID 8431cd5ebc653fd0b11ca3251f36de0a346f50f8
# Parent  4d49311d36595c87f019d99e4fb7816ee885ae74
Added a parent type attribute to instance attribute objects.

diff -r 4d49311d3659 -r 8431cd5ebc65 micropython/data.py
--- a/micropython/data.py	Thu Apr 25 18:08:32 2013 +0200
+++ b/micropython/data.py	Sun Apr 28 19:23:05 2013 +0200
@@ -7,7 +7,7 @@
 program but which are wrapped in context-dependent structures in the running
 program.
 
-Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012 Paul Boddie <paul@boddie.org.uk>
+Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013 Paul Boddie <paul@boddie.org.uk>
 
 This program is free software; you can redistribute it and/or modify it under
 the terms of the GNU General Public License as published by the Free Software
@@ -343,16 +343,19 @@
 
     "An attribute entry having a context."
 
-    def __init__(self, position, parent, name):
+    def __init__(self, position, parent, name, parent_type=None):
 
         """
         Initialise the attribute with the given 'position' within the collection
-        of attributes of its 'parent', indicating its 'name'.
+        of attributes of its 'parent', indicating its 'name'. If the
+        'parent_type' is specified, it will contain the type of any instance
+        parent.
         """
 
         self.position = position
         self.parent = parent
         self.name = name
+        self.parent_type = parent_type
 
         # Possible values.
 
@@ -529,9 +532,13 @@
             position = "at %r, " % self.position
         else:
             position = ""
-        return "<attribute %s.%s (%sassigned %r)>" % (
+        if self.parent_type is not None:
+            parent_type = "parent %s, " % shortrepr(self.parent_type)
+        else:
+            parent_type = ""
+        return "<attribute %s.%s (%s%sassigned %r)>" % (
             shortrepr(self.parent), self.name,
-            position, self.assignments
+            parent_type, position, self.assignments
             )
 
     def __shortrepr__(self):
@@ -879,7 +886,7 @@
 
         d = {}
         for i, name in enumerate(self._get_position_list(instattr)):
-            d[name] = Attr(i, make_instance(), name)
+            d[name] = Attr(i, make_instance(), name, self)
         return d
 
     def _get_position_list(self, positions):