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| author | Raymond Hettinger <python@rcn.com> | 2017-01-09 03:34:28 (GMT) |
|---|---|---|
| committer | Raymond Hettinger <python@rcn.com> | 2017-01-09 03:34:28 (GMT) |
| commit | 9d60b94427f42b3f543e398205113a1b18b43598 (patch) | |
| tree | 36e6a35d42ad360c80be9ccc11fc5e9e390430f6 /Modules | |
| parent | 44844ccc066f44bc894db0ecbfb96fac0e2a25eb (diff) | |
| download | cpython-9d60b94427f42b3f543e398205113a1b18b43598.zip cpython-9d60b94427f42b3f543e398205113a1b18b43598.tar.gz cpython-9d60b94427f42b3f543e398205113a1b18b43598.tar.bz2 | |
Sync-up lru_cache() C code with space saving feature in the Python version.
Diffstat (limited to 'Modules')
| -rw-r--r-- | Modules/_functoolsmodule.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Modules/_functoolsmodule.c b/Modules/_functoolsmodule.c index 62b45e9..bc34c21 100644 --- a/Modules/_functoolsmodule.c +++ b/Modules/_functoolsmodule.c @@ -709,6 +709,12 @@ lru_cache_make_key(PyObject *args, PyObject *kwds, int typed) /* short path, key will match args anyway, which is a tuple */ if (!typed && !kwds) { + if (PyTuple_GET_SIZE(args) == 1) { + /* Save space and improve speed by unwrapping 1-tuples */ + key = PyTuple_GET_ITEM(args, 0); + Py_INCREF(key); + return key; + } Py_INCREF(args); return args; } |