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annotate Include/classobject.h @ 4566:6403c94de50d legacy-trunk

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Added safeguard against failure in __del__.
author Guido van Rossum <guido@python.org>
date Wed, 27 Nov 1996 19:39:58 +0000
parents 65d2d8e67da3
children a874f5d3038e
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1 #ifndef Py_CLASSOBJECT_H
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2 #define Py_CLASSOBJECT_H
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3 #ifdef __cplusplus
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4 extern "C" {
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5 #endif
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6
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7 /***********************************************************
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8 Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
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9 The Netherlands.
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10
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11 All Rights Reserved
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12
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13 Permission to use, copy, modify, and distribute this software and its
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14 documentation for any purpose and without fee is hereby granted,
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15 provided that the above copyright notice appear in all copies and that
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16 both that copyright notice and this permission notice appear in
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17 supporting documentation, and that the names of Stichting Mathematisch
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18 Centrum or CWI or Corporation for National Research Initiatives or
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19 CNRI not be used in advertising or publicity pertaining to
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20 distribution of the software without specific, written prior
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21 permission.
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22
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23 While CWI is the initial source for this software, a modified version
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24 is made available by the Corporation for National Research Initiatives
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25 (CNRI) at the Internet address ftp://ftp.python.org.
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26
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27 STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH
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28 REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
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29 MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH
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30 CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
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31 DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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32 PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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33 TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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34 PERFORMANCE OF THIS SOFTWARE.
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35
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36 ******************************************************************/
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37
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38 /* Class object interface */
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39
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40 #ifdef WITH_THREAD
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41 #include "thread.h"
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42 #else
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43 #define get_thread_ident() 1L
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44 #endif
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45
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46 /* Revealing some structures (not for general use) */
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48 typedef struct {
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49 PyObject_HEAD
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50 PyObject *cl_bases; /* A tuple of class objects */
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51 PyObject *cl_dict; /* A dictionary */
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52 PyObject *cl_name; /* A string */
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53 /* The following three are functions or NULL */
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54 PyObject *cl_getattr;
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55 PyObject *cl_setattr;
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56 PyObject *cl_delattr;
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57 } PyClassObject;
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58
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59 typedef struct {
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60 PyObject_HEAD
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61 PyClassObject *in_class; /* The class object */
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62 PyObject *in_dict; /* A dictionary */
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63 } PyInstanceObject;
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64
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65 extern DL_IMPORT(PyTypeObject) PyClass_Type, PyInstance_Type, PyMethod_Type;
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67 #define PyClass_Check(op) ((op)->ob_type == &PyClass_Type)
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68 #define PyInstance_Check(op) ((op)->ob_type == &PyInstance_Type)
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69 #define PyMethod_Check(op) ((op)->ob_type == &PyMethod_Type)
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71 extern PyObject *PyClass_New Py_PROTO((PyObject *, PyObject *, PyObject *));
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72 extern PyObject *PyInstance_New Py_PROTO((PyObject *, PyObject *, PyObject *));
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73 extern PyObject *PyMethod_New Py_PROTO((PyObject *, PyObject *, PyObject *));
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75 extern PyObject *PyMethod_Function Py_PROTO((PyObject *));
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76 extern PyObject *PyMethod_Self Py_PROTO((PyObject *));
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77 extern PyObject *PyMethod_Class Py_PROTO((PyObject *));
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79 extern int PyClass_IsSubclass Py_PROTO((PyObject *, PyObject *));
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81 extern PyObject *PyInstance_DoBinOp
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82 Py_PROTO((PyObject *, PyObject *,
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83 char *, char *,
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84 PyObject * (*) Py_PROTO((PyObject *, PyObject *)) ));
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86 #ifdef __cplusplus
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87 }
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88 #endif
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89 #endif /* !Py_CLASSOBJECT_H */