Mercurial > cpython-lru_cache-weakref

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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 5fe72b9ed48e
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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5709ddba423c ANSI-fication and Py_PROTO extermination.
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1 #ifndef Py_COMPILE_H
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2 #define Py_COMPILE_H
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3
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4 #ifndef Py_LIMITED_API
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5 #include "code.h"
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6
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7 #ifdef __cplusplus
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8 extern "C" {
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9 #endif
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10
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11 /* Public interface */
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12 struct _node; /* Declare the existence of this type */
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13 PyAPI_FUNC(PyCodeObject *) PyNode_Compile(struct _node *, const char *);
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14
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15 /* Future feature support */
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16
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17 typedef struct {
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18 int ff_features; /* flags set by future statements */
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19 int ff_lineno; /* line number of last future statement */
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20 } PyFutureFeatures;
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21
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22 #define FUTURE_NESTED_SCOPES "nested_scopes"
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23 #define FUTURE_GENERATORS "generators"
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24 #define FUTURE_DIVISION "division"
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25 #define FUTURE_ABSOLUTE_IMPORT "absolute_import"
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26 #define FUTURE_WITH_STATEMENT "with_statement"
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27 #define FUTURE_PRINT_FUNCTION "print_function"
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28 #define FUTURE_UNICODE_LITERALS "unicode_literals"
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29 #define FUTURE_BARRY_AS_BDFL "barry_as_FLUFL"
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30
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31 struct _mod; /* Declare the existence of this type */
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32 #define PyAST_Compile(mod, s, f, ar) PyAST_CompileEx(mod, s, f, -1, ar)
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33 PyAPI_FUNC(PyCodeObject *) PyAST_CompileEx(
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34 struct _mod *mod,
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35 const char *filename, /* decoded from the filesystem encoding */
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36 PyCompilerFlags *flags,
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37 int optimize,
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38 PyArena *arena);
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39 PyAPI_FUNC(PyCodeObject *) PyAST_CompileObject(
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40 struct _mod *mod,
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41 PyObject *filename,
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42 PyCompilerFlags *flags,
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43 int optimize,
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44 PyArena *arena);
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45 PyAPI_FUNC(PyFutureFeatures *) PyFuture_FromAST(
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46 struct _mod * mod,
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47 const char *filename /* decoded from the filesystem encoding */
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48 );
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49 PyAPI_FUNC(PyFutureFeatures *) PyFuture_FromASTObject(
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50 struct _mod * mod,
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51 PyObject *filename
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52 );
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54 /* _Py_Mangle is defined in compile.c */
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55 PyAPI_FUNC(PyObject*) _Py_Mangle(PyObject *p, PyObject *name);
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56
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57 #define PY_INVALID_STACK_EFFECT INT_MAX
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58 PyAPI_FUNC(int) PyCompile_OpcodeStackEffect(int opcode, int oparg);
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60 #ifdef __cplusplus
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61 }
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62 #endif
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63
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64 #endif /* !Py_LIMITED_API */
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65
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66 /* These definitions must match corresponding definitions in graminit.h.
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67 There's code in compile.c that checks that they are the same. */
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68 #define Py_single_input 256
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69 #define Py_file_input 257
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70 #define Py_eval_input 258
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71
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72 #endif /* !Py_COMPILE_H */