glapi: gl_XML.py: make gl_api.categoryIterate a generator

This does basically the same thing as the previous implementation,
although it uses sorted() to act on the dictionary without first copying
the keys out into a list, and then indexing back into the dict; and uses
yield to make the method a generator, removing the need to make another
list.

Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>

1 files changed, 5 insertions, 8 deletions

diff --git a/src/mapi/glapi/gen/gl_XML.py b/src/mapi/glapi/gen/gl_XML.py
index 9298995d07..b7178d6e85 100644
--- a/src/mapi/glapi/gen/gl_XML.py
+++ b/src/mapi/glapi/gen/gl_XML.py
@@ -964,16 +964,13 @@ class gl_api(object):
         Iterate over all known categories in the order specified by
         classify_category.  Each iterated value is a tuple of the
         name and number (which may be None) of the category.
+
         """
-        list = []
         for cat_type in xrange(4):
-            keys = self.categories[cat_type].keys()
-            keys.sort()
-
-            for key in keys:
-                list.append(self.categories[cat_type][key])
-
-        return iter(list)
+            # iteritems and _ are required to make sorted() work, since we want
+            # to sort by key but return the the value.
+            for _, v in sorted(self.categories[cat_type].iteritems()):
+                yield v
 
     def get_category_for_name(self, name):
         if name in self.category_dict: