Mesa (master): util/gen_xmlpool: Don't use len to test for container emptiness

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Module: Mesa
Branch: master
Commit: 465cfcb2663fa732041627e5a35c6cadb7851e75
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=465cfcb2663fa732041627e5a35c6cadb7851e75

Author: Dylan Baker <dylan at pnwbakers.com>
Date:   Wed Oct 24 12:30:03 2018 -0700

util/gen_xmlpool: Don't use len to test for container emptiness

This is a very common python anti-pattern. Not using length allows us to
go through faster C paths, but has the same meaning.

Reviewed-by: Emil Velikov <emil.velikov at collabora.com>

---

 src/util/xmlpool/gen_xmlpool.py | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/util/xmlpool/gen_xmlpool.py b/src/util/xmlpool/gen_xmlpool.py
index 078bced733..f1983c7251 100644
--- a/src/util/xmlpool/gen_xmlpool.py
+++ b/src/util/xmlpool/gen_xmlpool.py
@@ -182,7 +182,7 @@ def main():
         with io.open(args.template, mode="rt", encoding='utf-8') as template:
             descMatches = []
             for line in template:
-                if len(descMatches) > 0:
+                if descMatches:
                     matchENUM = reENUM.match(line)
                     matchDESC_END = reDESC_END.match(line)
                     if matchENUM:
@@ -201,16 +201,16 @@ def main():
                 matchDESC = reDESC.match(line)
                 matchDESC_BEGIN = reDESC_BEGIN.match(line)
                 if matchDESC:
-                    assert len(descMatches) == 0
+                    assert not descMatches
                     expandMatches([matchDESC], translations, output)
                 elif matchDESC_BEGIN:
-                    assert len(descMatches) == 0
+                    assert not descMatches
                     descMatches = [matchDESC_BEGIN]
                 else:
 
                     output.write(line)
 
-        if len(descMatches) > 0:
+        if descMatches:
             print("Warning: unterminated description at end of file.", file=sys.stderr)
             expandMatches(descMatches, translations, output)