# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1476196044 -7200
# Node ID 068688ccb8187dbe6a69ab2ac3be3da35c8ff8b9
# Parent  c7ddfc4525dae5f2da99e41803955d72631494d1
Modified and made use of the get_attrname_from_location function, also tidying
the deducer and adding documentation.

diff -r c7ddfc4525da -r 068688ccb818 common.py
--- a/common.py	Sat Oct 08 00:43:13 2016 +0200
+++ b/common.py	Tue Oct 11 16:27:24 2016 +0200
@@ -800,6 +800,8 @@
     """
 
     path, name, attrnames, access = location
+    if not attrnames:
+        return attrnames
     return get_attrnames(attrnames)[0]
 
 def get_name_path(path, name):
diff -r c7ddfc4525da -r 068688ccb818 deducer.py
--- a/deducer.py	Sat Oct 08 00:43:13 2016 +0200
+++ b/deducer.py	Tue Oct 11 16:27:24 2016 +0200
@@ -384,7 +384,13 @@
 
     def write_access_plans(self):
 
-        "Each attribute access is written out as a plan."
+        """
+        Each attribute access is written out as a plan of the following form:
+
+        location " " name " " test " " test type " " base " " traversed attributes
+                 " " attributes to traverse " " context " " access method
+                 " " static attribute
+        """
 
         f_attrs = open(join(self.output, "attribute_plans"), "w")
 
@@ -1339,12 +1345,10 @@
         'accessor_locations'.
         """
 
-        path, name, attrnames, version = access_location
-        if not attrnames:
+        attrname = get_attrname_from_location(access_location)
+        if not attrname:
             return
 
-        attrname = get_attrnames(attrnames)[0]
-
         # Collect all suggested types for the accessors. Accesses may
         # require accessors from of a subset of the complete set of types.