python-checkins at python
May 2, 2012, 4:46 PM
Post #1 of 1
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cpython: Issue #14687: Optimize str%tuple for the "%(name)s" syntax
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http://hg.python.org/cpython/rev/90b4c2d7c90d
changeset: 76721:90b4c2d7c90d
user: Victor Stinner <victor.stinner [at] gmail>
date: Thu May 03 01:44:59 2012 +0200
summary:
Issue #14687: Optimize str%tuple for the "%(name)s" syntax
Avoid an useless and expensive call to PyUnicode_READ().
files:
Objects/unicodeobject.c | 5 +++--
1 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -13737,9 +13737,10 @@
keystart = fmtpos;
/* Skip over balanced parentheses */
while (pcount > 0 && --fmtcnt >= 0) {
- if (PyUnicode_READ(fmtkind, fmt, fmtpos) == ')')
+ c = PyUnicode_READ(fmtkind, fmt, fmtpos);
+ if (c == ')')
--pcount;
- else if (PyUnicode_READ(fmtkind, fmt, fmtpos) == '(')
+ else if (c == '(')
++pcount;
fmtpos++;
}
--
Repository URL: http://hg.python.org/cpython
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