Mercurial > cpython-lru_cache-weakref

annotate Objects/stringlib/eq.h @ 87690:66c1c9f32567 default tip

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Add use_weakref option to functools.lru_cache The use_weakref option makes lru_cache create weak references to the function arguments when creating the cache key, which prevents them from staying in the memory forever even after all other references to them are gone. This is a proof of concept for http://bugs.python.org/issue19859
author Radomir Dopieralski <devel@sheep.art.pl>
date Tue, 03 Dec 2013 16:02:48 +0100
parents 55c55bfe237b
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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44252
444da08f78a4 Fixed issue #1564: The set implementation should special-case PyUnicode instead of PyString
Christian Heimes <christian@cheimes.de>
parents:
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1 /* Fast unicode equal function optimized for dictobject.c and setobject.c */
444da08f78a4 Fixed issue #1564: The set implementation should special-case PyUnicode instead of PyString
Christian Heimes <christian@cheimes.de>
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2
444da08f78a4 Fixed issue #1564: The set implementation should special-case PyUnicode instead of PyString
Christian Heimes <christian@cheimes.de>
parents:
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3 /* Return 1 if two unicode objects are equal, 0 if not.
444da08f78a4 Fixed issue #1564: The set implementation should special-case PyUnicode instead of PyString
Christian Heimes <christian@cheimes.de>
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4 * unicode_eq() is called when the hash of two unicode objects is equal.
444da08f78a4 Fixed issue #1564: The set implementation should special-case PyUnicode instead of PyString
Christian Heimes <christian@cheimes.de>
parents:
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5 */
444da08f78a4 Fixed issue #1564: The set implementation should special-case PyUnicode instead of PyString
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6 Py_LOCAL_INLINE(int)
444da08f78a4 Fixed issue #1564: The set implementation should special-case PyUnicode instead of PyString
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7 unicode_eq(PyObject *aa, PyObject *bb)
444da08f78a4 Fixed issue #1564: The set implementation should special-case PyUnicode instead of PyString
Christian Heimes <christian@cheimes.de>
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8 {
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e7f6cef7a4cc Issue #18722: Remove uses of the "register" keyword in C code.
Antoine Pitrou <solipsis@pitrou.net>
parents: 72796
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9 PyUnicodeObject *a = (PyUnicodeObject *)aa;
e7f6cef7a4cc Issue #18722: Remove uses of the "register" keyword in C code.
Antoine Pitrou <solipsis@pitrou.net>
parents: 72796
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10 PyUnicodeObject *b = (PyUnicodeObject *)bb;
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Christian Heimes <christian@cheimes.de>
parents:
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11
72475
8beaa9a37387 Implement PEP 393.
Martin v. Löwis <martin@v.loewis.de>
parents: 61466
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12 if (PyUnicode_READY(a) == -1 || PyUnicode_READY(b) == -1) {
8beaa9a37387 Implement PEP 393.
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parents: 61466
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13 assert(0 && "unicode_eq ready fail");
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
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14 return 0;
72475
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Martin v. Löwis <martin@v.loewis.de>
parents: 61466
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15 }
8beaa9a37387 Implement PEP 393.
Martin v. Löwis <martin@v.loewis.de>
parents: 61466
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16
8beaa9a37387 Implement PEP 393.
Martin v. Löwis <martin@v.loewis.de>
parents: 61466
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17 if (PyUnicode_GET_LENGTH(a) != PyUnicode_GET_LENGTH(b))
8beaa9a37387 Implement PEP 393.
Martin v. Löwis <martin@v.loewis.de>
parents: 61466
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18 return 0;
8beaa9a37387 Implement PEP 393.
Martin v. Löwis <martin@v.loewis.de>
parents: 61466
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19 if (PyUnicode_GET_LENGTH(a) == 0)
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 44252
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20 return 1;
72475
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Martin v. Löwis <martin@v.loewis.de>
parents: 61466
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21 if (PyUnicode_KIND(a) != PyUnicode_KIND(b))
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cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 44252
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22 return 0;
72475
8beaa9a37387 Implement PEP 393.
Martin v. Löwis <martin@v.loewis.de>
parents: 61466
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23 return memcmp(PyUnicode_1BYTE_DATA(a), PyUnicode_1BYTE_DATA(b),
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c25262e97304 Change PyUnicode_KIND to 1,2,4. Drop _KIND_SIZE and _CHARACTER_SIZE.
Martin v. Löwis <martin@v.loewis.de>
parents: 72475
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24 PyUnicode_GET_LENGTH(a) * PyUnicode_KIND(a)) == 0;
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25 }