# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1257466068 -3600
# Node ID 001d543dc80524266b3427420d15636dbe9dd808
# Parent  837ba944f563fe45776d0b52458cb9584a0168e9
Added more attribute-related notes.

diff -r 837ba944f563 -r 001d543dc805 docs/optimisations.txt
--- a/docs/optimisations.txt	Tue Oct 27 00:23:28 2009 +0100
+++ b/docs/optimisations.txt	Fri Nov 06 01:07:48 2009 +0100
@@ -235,6 +235,29 @@
             ...
         return x.attr
 
+With more specific information about the attributes used with a given name,
+combinations of attributes can be provided instead of single attributes when
+recording attribute usage. For example, from the above:
+
+    x uses method    -> indicates potential usage of C.method, D1.method, ...
+    x uses something -> indicates potential usage of C.something,
+                        D2.something, ...
+    x uses attr      -> indicates potential usage of C.attr, D3.attr, ...
+
+These unspecific declarations of attribute usage can be replaced with the
+following:
+
+    x uses method, something, attr -> indicates potential usage of C, D4, ...
+                                      (each providing all of the stated
+                                      attributes)
+
+Reducing Object Table Scope
+---------------------------
+
+Where attributes may be used in a program but never accessed via the object
+table-dependent instructions, such attributes could be omitted from the object
+table.
+
 Implemented Optimisation Types
 ==============================