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flagprocessor: add a fast path when flags is 0
authorJun Wu <quark@fb.com>
Wed, 10 May 2017 16:17:58 -0700
changeset 32286 539cbe0f8fa3
parent 32285 fe3105e6e051
child 32287 df3cf9422e1b
flagprocessor: add a fast path when flags is 0 When flags is 0, _processflags could be a no-op instead of iterating through the flag bits.
mercurial/revlog.py file | annotate | diff | comparison | revisions 
--- a/mercurial/revlog.py	Sat May 13 14:52:29 2017 -0700
+++ b/mercurial/revlog.py	Wed May 10 16:17:58 2017 -0700
@@ -1359,6 +1359,9 @@
         Note: If the ``raw`` argument is set, it has precedence over the
         operation and will only update the value of ``validatehash``.
         """
+        # fast path: no flag processors will run
+        if flags == 0:
+            return text, True
         if not operation in ('read', 'write'):
             raise ProgrammingError(_("invalid '%s' operation ") % (operation))
         # Check all flags are known.
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