python-2.7.11/Include/object.h Source File

object.h
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1 #ifndef Py_OBJECT_H
2 #define Py_OBJECT_H
3 #ifdef __cplusplus
4 extern "C" {
5 #endif
6 
7 
8 /* Object and type object interface */
9 
10 /*
11 Objects are structures allocated on the heap. Special rules apply to
12 the use of objects to ensure they are properly garbage-collected.
13 Objects are never allocated statically or on the stack; they must be
14 accessed through special macros and functions only. (Type objects are
15 exceptions to the first rule; the standard types are represented by
16 statically initialized type objects, although work on type/class unification
17 for Python 2.2 made it possible to have heap-allocated type objects too).
18 
19 An object has a 'reference count' that is increased or decreased when a
20 pointer to the object is copied or deleted; when the reference count
21 reaches zero there are no references to the object left and it can be
22 removed from the heap.
23 
24 An object has a 'type' that determines what it represents and what kind
25 of data it contains. An object's type is fixed when it is created.
26 Types themselves are represented as objects; an object contains a
27 pointer to the corresponding type object. The type itself has a type
28 pointer pointing to the object representing the type 'type', which
29 contains a pointer to itself!).
30 
31 Objects do not float around in memory; once allocated an object keeps
32 the same size and address. Objects that must hold variable-size data
33 can contain pointers to variable-size parts of the object. Not all
34 objects of the same type have the same size; but the size cannot change
35 after allocation. (These restrictions are made so a reference to an
36 object can be simply a pointer -- moving an object would require
37 updating all the pointers, and changing an object's size would require
38 moving it if there was another object right next to it.)
39 
40 Objects are always accessed through pointers of the type 'PyObject *'.
41 The type 'PyObject' is a structure that only contains the reference count
42 and the type pointer. The actual memory allocated for an object
43 contains other data that can only be accessed after casting the pointer
44 to a pointer to a longer structure type. This longer type must start
45 with the reference count and type fields; the macro PyObject_HEAD should be
46 used for this (to accommodate for future changes). The implementation
47 of a particular object type can cast the object pointer to the proper
48 type and back.
49 
50 A standard interface exists for objects that contain an array of items
51 whose size is determined when the object is allocated.
52 */
53 
54 /* Py_DEBUG implies Py_TRACE_REFS. */
55 #if defined(Py_DEBUG) && !defined(Py_TRACE_REFS)
56 #define Py_TRACE_REFS
57 #endif
58 
59 /* Py_TRACE_REFS implies Py_REF_DEBUG. */
60 #if defined(Py_TRACE_REFS) && !defined(Py_REF_DEBUG)
61 #define Py_REF_DEBUG
62 #endif
63 
64 #ifdef Py_TRACE_REFS
65 /* Define pointers to support a doubly-linked list of all live heap objects. */
66 #define _PyObject_HEAD_EXTRA \
67  struct _object *_ob_next; \
68  struct _object *_ob_prev;
69 
70 #define _PyObject_EXTRA_INIT 0, 0,
71 
72 #else
73 #define _PyObject_HEAD_EXTRA
74 #define _PyObject_EXTRA_INIT
75 #endif
76 
77 /* PyObject_HEAD defines the initial segment of every PyObject. */
78 #define PyObject_HEAD \
79  _PyObject_HEAD_EXTRA \
80  Py_ssize_t ob_refcnt; \
81  struct _typeobject *ob_type;
82 
83 #define PyObject_HEAD_INIT(type) \
84  _PyObject_EXTRA_INIT \
85  1, type,
86 
87 #define PyVarObject_HEAD_INIT(type, size) \
88  PyObject_HEAD_INIT(type) size,
89 
90 /* PyObject_VAR_HEAD defines the initial segment of all variable-size
91  * container objects. These end with a declaration of an array with 1
92  * element, but enough space is malloc'ed so that the array actually
93  * has room for ob_size elements. Note that ob_size is an element count,
94  * not necessarily a byte count.
95  */
96 #define PyObject_VAR_HEAD \
97  PyObject_HEAD \
98  Py_ssize_t ob_size; /* Number of items in variable part */
99 #define Py_INVALID_SIZE (Py_ssize_t)-1
100 
101 /* Nothing is actually declared to be a PyObject, but every pointer to
102  * a Python object can be cast to a PyObject*. This is inheritance built
103  * by hand. Similarly every pointer to a variable-size Python object can,
104  * in addition, be cast to PyVarObject*.
105  */
106 typedef struct _object {
108 } PyObject;
109 
110 typedef struct {
112 } PyVarObject;
113 
114 #define Py_REFCNT(ob) (((PyObject*)(ob))->ob_refcnt)
115 #define Py_TYPE(ob) (((PyObject*)(ob))->ob_type)
116 #define Py_SIZE(ob) (((PyVarObject*)(ob))->ob_size)
117 
118 /*
119 Type objects contain a string containing the type name (to help somewhat
120 in debugging), the allocation parameters (see PyObject_New() and
121 PyObject_NewVar()),
122 and methods for accessing objects of the type. Methods are optional, a
123 nil pointer meaning that particular kind of access is not available for
124 this type. The Py_DECREF() macro uses the tp_dealloc method without
125 checking for a nil pointer; it should always be implemented except if
126 the implementation can guarantee that the reference count will never
127 reach zero (e.g., for statically allocated type objects).
128 
129 NB: the methods for certain type groups are now contained in separate
130 method blocks.
131 */
132 
133 typedef PyObject * (*unaryfunc)(PyObject *);
134 typedef PyObject * (*binaryfunc)(PyObject *, PyObject *);
135 typedef PyObject * (*ternaryfunc)(PyObject *, PyObject *, PyObject *);
136 typedef int (*inquiry)(PyObject *);
137 typedef Py_ssize_t (*lenfunc)(PyObject *);
138 typedef int (*coercion)(PyObject **, PyObject **);
139 typedef PyObject *(*intargfunc)(PyObject *, int) Py_DEPRECATED(2.5);
140 typedef PyObject *(*intintargfunc)(PyObject *, int, int) Py_DEPRECATED(2.5);
141 typedef PyObject *(*ssizeargfunc)(PyObject *, Py_ssize_t);
142 typedef PyObject *(*ssizessizeargfunc)(PyObject *, Py_ssize_t, Py_ssize_t);
143 typedef int(*intobjargproc)(PyObject *, int, PyObject *);
144 typedef int(*intintobjargproc)(PyObject *, int, int, PyObject *);
145 typedef int(*ssizeobjargproc)(PyObject *, Py_ssize_t, PyObject *);
146 typedef int(*ssizessizeobjargproc)(PyObject *, Py_ssize_t, Py_ssize_t, PyObject *);
147 typedef int(*objobjargproc)(PyObject *, PyObject *, PyObject *);
148 
149 
150 
151 /* int-based buffer interface */
152 typedef int (*getreadbufferproc)(PyObject *, int, void **);
153 typedef int (*getwritebufferproc)(PyObject *, int, void **);
154 typedef int (*getsegcountproc)(PyObject *, int *);
155 typedef int (*getcharbufferproc)(PyObject *, int, char **);
156 /* ssize_t-based buffer interface */
157 typedef Py_ssize_t (*readbufferproc)(PyObject *, Py_ssize_t, void **);
158 typedef Py_ssize_t (*writebufferproc)(PyObject *, Py_ssize_t, void **);
159 typedef Py_ssize_t (*segcountproc)(PyObject *, Py_ssize_t *);
160 typedef Py_ssize_t (*charbufferproc)(PyObject *, Py_ssize_t, char **);
161 
162 
163 /* Py3k buffer interface */
164 typedef struct bufferinfo {
165  void *buf;
166  PyObject *obj; /* owned reference */
167  Py_ssize_t len;
168  Py_ssize_t itemsize; /* This is Py_ssize_t so it can be
169  pointed to by strides in simple case.*/
170  int readonly;
171  int ndim;
172  char *format;
173  Py_ssize_t *shape;
174  Py_ssize_t *strides;
175  Py_ssize_t *suboffsets;
176  Py_ssize_t smalltable[2]; /* static store for shape and strides of
177  mono-dimensional buffers. */
178  void *internal;
179 } Py_buffer;
180 
181 typedef int (*getbufferproc)(PyObject *, Py_buffer *, int);
182 typedef void (*releasebufferproc)(PyObject *, Py_buffer *);
183 
184  /* Flags for getting buffers */
185 #define PyBUF_SIMPLE 0
186 #define PyBUF_WRITABLE 0x0001
187 /* we used to include an E, backwards compatible alias */
188 #define PyBUF_WRITEABLE PyBUF_WRITABLE
189 #define PyBUF_FORMAT 0x0004
190 #define PyBUF_ND 0x0008
191 #define PyBUF_STRIDES (0x0010 | PyBUF_ND)
192 #define PyBUF_C_CONTIGUOUS (0x0020 | PyBUF_STRIDES)
193 #define PyBUF_F_CONTIGUOUS (0x0040 | PyBUF_STRIDES)
194 #define PyBUF_ANY_CONTIGUOUS (0x0080 | PyBUF_STRIDES)
195 #define PyBUF_INDIRECT (0x0100 | PyBUF_STRIDES)
196 
197 #define PyBUF_CONTIG (PyBUF_ND | PyBUF_WRITABLE)
198 #define PyBUF_CONTIG_RO (PyBUF_ND)
199 
200 #define PyBUF_STRIDED (PyBUF_STRIDES | PyBUF_WRITABLE)
201 #define PyBUF_STRIDED_RO (PyBUF_STRIDES)
202 
203 #define PyBUF_RECORDS (PyBUF_STRIDES | PyBUF_WRITABLE | PyBUF_FORMAT)
204 #define PyBUF_RECORDS_RO (PyBUF_STRIDES | PyBUF_FORMAT)
205 
206 #define PyBUF_FULL (PyBUF_INDIRECT | PyBUF_WRITABLE | PyBUF_FORMAT)
207 #define PyBUF_FULL_RO (PyBUF_INDIRECT | PyBUF_FORMAT)
208 
209 
210 #define PyBUF_READ 0x100
211 #define PyBUF_WRITE 0x200
212 #define PyBUF_SHADOW 0x400
213 /* end Py3k buffer interface */
214 
215 typedef int (*objobjproc)(PyObject *, PyObject *);
216 typedef int (*visitproc)(PyObject *, void *);
217 typedef int (*traverseproc)(PyObject *, visitproc, void *);
218 
219 typedef struct {
220  /* For numbers without flag bit Py_TPFLAGS_CHECKTYPES set, all
221  arguments are guaranteed to be of the object's type (modulo
222  coercion hacks -- i.e. if the type's coercion function
223  returns other types, then these are allowed as well). Numbers that
224  have the Py_TPFLAGS_CHECKTYPES flag bit set should check *both*
225  arguments for proper type and implement the necessary conversions
226  in the slot functions themselves. */
227 
251  /* Added in release 2.0 */
263 
264  /* Added in release 2.2 */
265  /* The following require the Py_TPFLAGS_HAVE_CLASS flag */
270 
271  /* Added in release 2.5 */
274 
275 typedef struct {
284  /* Added in release 2.0 */
288 
289 typedef struct {
294 
295 typedef struct {
302 } PyBufferProcs;
303 
304 
305 typedef void (*freefunc)(void *);
306 typedef void (*destructor)(PyObject *);
307 typedef int (*printfunc)(PyObject *, FILE *, int);
308 typedef PyObject *(*getattrfunc)(PyObject *, char *);
309 typedef PyObject *(*getattrofunc)(PyObject *, PyObject *);
310 typedef int (*setattrfunc)(PyObject *, char *, PyObject *);
311 typedef int (*setattrofunc)(PyObject *, PyObject *, PyObject *);
312 typedef int (*cmpfunc)(PyObject *, PyObject *);
313 typedef PyObject *(*reprfunc)(PyObject *);
314 typedef long (*hashfunc)(PyObject *);
315 typedef PyObject *(*richcmpfunc) (PyObject *, PyObject *, int);
316 typedef PyObject *(*getiterfunc) (PyObject *);
317 typedef PyObject *(*iternextfunc) (PyObject *);
318 typedef PyObject *(*descrgetfunc) (PyObject *, PyObject *, PyObject *);
319 typedef int (*descrsetfunc) (PyObject *, PyObject *, PyObject *);
320 typedef int (*initproc)(PyObject *, PyObject *, PyObject *);
321 typedef PyObject *(*newfunc)(struct _typeobject *, PyObject *, PyObject *);
322 typedef PyObject *(*allocfunc)(struct _typeobject *, Py_ssize_t);
323 
324 typedef struct _typeobject {
326  const char *tp_name; /* For printing, in format "<module>.<name>" */
327  Py_ssize_t tp_basicsize, tp_itemsize; /* For allocation */
328 
329  /* Methods to implement standard operations */
330 
337 
338  /* Method suites for standard classes */
339 
343 
344  /* More standard operations (here for binary compatibility) */
345 
351 
352  /* Functions to access object as input/output buffer */
354 
355  /* Flags to define presence of optional/expanded features */
356  long tp_flags;
357 
358  const char *tp_doc; /* Documentation string */
359 
360  /* Assigned meaning in release 2.0 */
361  /* call function for all accessible objects */
363 
364  /* delete references to contained objects */
366 
367  /* Assigned meaning in release 2.1 */
368  /* rich comparisons */
370 
371  /* weak reference enabler */
372  Py_ssize_t tp_weaklistoffset;
373 
374  /* Added in release 2.2 */
375  /* Iterators */
378 
379  /* Attribute descriptor and subclassing stuff */
384  PyObject *tp_dict;
387  Py_ssize_t tp_dictoffset;
391  freefunc tp_free; /* Low-level free-memory routine */
392  inquiry tp_is_gc; /* For PyObject_IS_GC */
393  PyObject *tp_bases;
394  PyObject *tp_mro; /* method resolution order */
395  PyObject *tp_cache;
396  PyObject *tp_subclasses;
397  PyObject *tp_weaklist;
399 
400  /* Type attribute cache version tag. Added in version 2.6 */
401  unsigned int tp_version_tag;
402 
403 #ifdef COUNT_ALLOCS
404  /* these must be last and never explicitly initialized */
405  Py_ssize_t tp_allocs;
406  Py_ssize_t tp_frees;
407  Py_ssize_t tp_maxalloc;
408  struct _typeobject *tp_prev;
409  struct _typeobject *tp_next;
410 #endif
411 } PyTypeObject;
412 
413 
414 /* The *real* layout of a type object when allocated on the heap */
415 typedef struct _heaptypeobject {
416  /* Note: there's a dependency on the order of these members
417  in slotptr() in typeobject.c . */
421  PySequenceMethods as_sequence; /* as_sequence comes after as_mapping,
422  so that the mapping wins when both
423  the mapping and the sequence define
424  a given operator (e.g. __getitem__).
425  see add_operators() in typeobject.c . */
427  PyObject *ht_name, *ht_slots;
428  /* here are optional user slots, followed by the members. */
430 
431 /* access macro to the members which are floating "behind" the object */
432 #define PyHeapType_GET_MEMBERS(etype) \
433  ((PyMemberDef *)(((char *)etype) + Py_TYPE(etype)->tp_basicsize))
434 
435 
436 /* Generic type check */
437 PyAPI_FUNC(int) PyType_IsSubtype(PyTypeObject *, PyTypeObject *);
438 #define PyObject_TypeCheck(ob, tp) \
439  (Py_TYPE(ob) == (tp) || PyType_IsSubtype(Py_TYPE(ob), (tp)))
440 
441 PyAPI_DATA(PyTypeObject) PyType_Type; /* built-in 'type' */
442 PyAPI_DATA(PyTypeObject) PyBaseObject_Type; /* built-in 'object' */
443 PyAPI_DATA(PyTypeObject) PySuper_Type; /* built-in 'super' */
444 
445 #define PyType_Check(op) \
446  PyType_FastSubclass(Py_TYPE(op), Py_TPFLAGS_TYPE_SUBCLASS)
447 #define PyType_CheckExact(op) (Py_TYPE(op) == &PyType_Type)
448 
449 PyAPI_FUNC(int) PyType_Ready(PyTypeObject *);
450 PyAPI_FUNC(PyObject *) PyType_GenericAlloc(PyTypeObject *, Py_ssize_t);
451 PyAPI_FUNC(PyObject *) PyType_GenericNew(PyTypeObject *,
452  PyObject *, PyObject *);
453 PyAPI_FUNC(PyObject *) _PyType_Lookup(PyTypeObject *, PyObject *);
454 PyAPI_FUNC(PyObject *) _PyObject_LookupSpecial(PyObject *, char *, PyObject **);
455 PyAPI_FUNC(unsigned int) PyType_ClearCache(void);
456 PyAPI_FUNC(void) PyType_Modified(PyTypeObject *);
457 
458 /* Generic operations on objects */
459 PyAPI_FUNC(int) PyObject_Print(PyObject *, FILE *, int);
460 PyAPI_FUNC(void) _PyObject_Dump(PyObject *);
461 PyAPI_FUNC(PyObject *) PyObject_Repr(PyObject *);
462 PyAPI_FUNC(PyObject *) _PyObject_Str(PyObject *);
463 PyAPI_FUNC(PyObject *) PyObject_Str(PyObject *);
464 #define PyObject_Bytes PyObject_Str
465 #ifdef Py_USING_UNICODE
466 PyAPI_FUNC(PyObject *) PyObject_Unicode(PyObject *);
467 #endif
468 PyAPI_FUNC(int) PyObject_Compare(PyObject *, PyObject *);
469 PyAPI_FUNC(PyObject *) PyObject_RichCompare(PyObject *, PyObject *, int);
470 PyAPI_FUNC(int) PyObject_RichCompareBool(PyObject *, PyObject *, int);
471 PyAPI_FUNC(PyObject *) PyObject_GetAttrString(PyObject *, const char *);
472 PyAPI_FUNC(int) PyObject_SetAttrString(PyObject *, const char *, PyObject *);
473 PyAPI_FUNC(int) PyObject_HasAttrString(PyObject *, const char *);
474 PyAPI_FUNC(PyObject *) PyObject_GetAttr(PyObject *, PyObject *);
475 PyAPI_FUNC(int) PyObject_SetAttr(PyObject *, PyObject *, PyObject *);
476 PyAPI_FUNC(int) PyObject_HasAttr(PyObject *, PyObject *);
477 PyAPI_FUNC(PyObject **) _PyObject_GetDictPtr(PyObject *);
478 PyAPI_FUNC(PyObject *) PyObject_SelfIter(PyObject *);
479 PyAPI_FUNC(PyObject *) _PyObject_NextNotImplemented(PyObject *);
480 PyAPI_FUNC(PyObject *) PyObject_GenericGetAttr(PyObject *, PyObject *);
481 PyAPI_FUNC(int) PyObject_GenericSetAttr(PyObject *,
482  PyObject *, PyObject *);
483 PyAPI_FUNC(long) PyObject_Hash(PyObject *);
484 PyAPI_FUNC(long) PyObject_HashNotImplemented(PyObject *);
485 PyAPI_FUNC(int) PyObject_IsTrue(PyObject *);
486 PyAPI_FUNC(int) PyObject_Not(PyObject *);
487 PyAPI_FUNC(int) PyCallable_Check(PyObject *);
488 PyAPI_FUNC(int) PyNumber_Coerce(PyObject **, PyObject **);
489 PyAPI_FUNC(int) PyNumber_CoerceEx(PyObject **, PyObject **);
490 
491 PyAPI_FUNC(void) PyObject_ClearWeakRefs(PyObject *);
492 
493 /* A slot function whose address we need to compare */
494 extern int _PyObject_SlotCompare(PyObject *, PyObject *);
495 /* Same as PyObject_Generic{Get,Set}Attr, but passing the attributes
496  dict as the last parameter. */
497 PyAPI_FUNC(PyObject *)
498 _PyObject_GenericGetAttrWithDict(PyObject *, PyObject *, PyObject *);
499 PyAPI_FUNC(int)
500 _PyObject_GenericSetAttrWithDict(PyObject *, PyObject *,
501  PyObject *, PyObject *);
502 
503 
504 /* PyObject_Dir(obj) acts like Python __builtin__.dir(obj), returning a
505  list of strings. PyObject_Dir(NULL) is like __builtin__.dir(),
506  returning the names of the current locals. In this case, if there are
507  no current locals, NULL is returned, and PyErr_Occurred() is false.
508 */
509 PyAPI_FUNC(PyObject *) PyObject_Dir(PyObject *);
510 
511 
512 /* Helpers for printing recursive container types */
513 PyAPI_FUNC(int) Py_ReprEnter(PyObject *);
514 PyAPI_FUNC(void) Py_ReprLeave(PyObject *);
515 
516 /* Helpers for hash functions */
517 PyAPI_FUNC(long) _Py_HashDouble(double);
518 PyAPI_FUNC(long) _Py_HashPointer(void*);
519 
520 typedef struct {
521  long prefix;
522  long suffix;
524 PyAPI_DATA(_Py_HashSecret_t) _Py_HashSecret;
525 
526 #ifdef Py_DEBUG
527 PyAPI_DATA(int) _Py_HashSecret_Initialized;
528 #endif
529 
530 /* Helper for passing objects to printf and the like.
531  Leaks refcounts. Don't use it!
532 */
533 #define PyObject_REPR(obj) PyString_AS_STRING(PyObject_Repr(obj))
534 
535 /* Flag bits for printing: */
536 #define Py_PRINT_RAW 1 /* No string quotes etc. */
537 
538 /*
539 `Type flags (tp_flags)
540 
541 These flags are used to extend the type structure in a backwards-compatible
542 fashion. Extensions can use the flags to indicate (and test) when a given
543 type structure contains a new feature. The Python core will use these when
544 introducing new functionality between major revisions (to avoid mid-version
545 changes in the PYTHON_API_VERSION).
546 
547 Arbitration of the flag bit positions will need to be coordinated among
548 all extension writers who publically release their extensions (this will
549 be fewer than you might expect!)..
550 
551 Python 1.5.2 introduced the bf_getcharbuffer slot into PyBufferProcs.
552 
553 Type definitions should use Py_TPFLAGS_DEFAULT for their tp_flags value.
554 
555 Code can use PyType_HasFeature(type_ob, flag_value) to test whether the
556 given type object has a specified feature.
557 
558 NOTE: when building the core, Py_TPFLAGS_DEFAULT includes
559 Py_TPFLAGS_HAVE_VERSION_TAG; outside the core, it doesn't. This is so
560 that extensions that modify tp_dict of their own types directly don't
561 break, since this was allowed in 2.5. In 3.0 they will have to
562 manually remove this flag though!
563 */
564 
565 /* PyBufferProcs contains bf_getcharbuffer */
566 #define Py_TPFLAGS_HAVE_GETCHARBUFFER (1L<<0)
567 
568 /* PySequenceMethods contains sq_contains */
569 #define Py_TPFLAGS_HAVE_SEQUENCE_IN (1L<<1)
570 
571 /* This is here for backwards compatibility. Extensions that use the old GC
572  * API will still compile but the objects will not be tracked by the GC. */
573 #define Py_TPFLAGS_GC 0 /* used to be (1L<<2) */
574 
575 /* PySequenceMethods and PyNumberMethods contain in-place operators */
576 #define Py_TPFLAGS_HAVE_INPLACEOPS (1L<<3)
577 
578 /* PyNumberMethods do their own coercion */
579 #define Py_TPFLAGS_CHECKTYPES (1L<<4)
580 
581 /* tp_richcompare is defined */
582 #define Py_TPFLAGS_HAVE_RICHCOMPARE (1L<<5)
583 
584 /* Objects which are weakly referencable if their tp_weaklistoffset is >0 */
585 #define Py_TPFLAGS_HAVE_WEAKREFS (1L<<6)
586 
587 /* tp_iter is defined */
588 #define Py_TPFLAGS_HAVE_ITER (1L<<7)
589 
590 /* New members introduced by Python 2.2 exist */
591 #define Py_TPFLAGS_HAVE_CLASS (1L<<8)
592 
593 /* Set if the type object is dynamically allocated */
594 #define Py_TPFLAGS_HEAPTYPE (1L<<9)
595 
596 /* Set if the type allows subclassing */
597 #define Py_TPFLAGS_BASETYPE (1L<<10)
598 
599 /* Set if the type is 'ready' -- fully initialized */
600 #define Py_TPFLAGS_READY (1L<<12)
601 
602 /* Set while the type is being 'readied', to prevent recursive ready calls */
603 #define Py_TPFLAGS_READYING (1L<<13)
604 
605 /* Objects support garbage collection (see objimp.h) */
606 #define Py_TPFLAGS_HAVE_GC (1L<<14)
607 
608 /* These two bits are preserved for Stackless Python, next after this is 17 */
609 #ifdef STACKLESS
610 #define Py_TPFLAGS_HAVE_STACKLESS_EXTENSION (3L<<15)
611 #else
612 #define Py_TPFLAGS_HAVE_STACKLESS_EXTENSION 0
613 #endif
614 
615 /* Objects support nb_index in PyNumberMethods */
616 #define Py_TPFLAGS_HAVE_INDEX (1L<<17)
617 
618 /* Objects support type attribute cache */
619 #define Py_TPFLAGS_HAVE_VERSION_TAG (1L<<18)
620 #define Py_TPFLAGS_VALID_VERSION_TAG (1L<<19)
621 
622 /* Type is abstract and cannot be instantiated */
623 #define Py_TPFLAGS_IS_ABSTRACT (1L<<20)
624 
625 /* Has the new buffer protocol */
626 #define Py_TPFLAGS_HAVE_NEWBUFFER (1L<<21)
627 
628 /* These flags are used to determine if a type is a subclass. */
629 #define Py_TPFLAGS_INT_SUBCLASS (1L<<23)
630 #define Py_TPFLAGS_LONG_SUBCLASS (1L<<24)
631 #define Py_TPFLAGS_LIST_SUBCLASS (1L<<25)
632 #define Py_TPFLAGS_TUPLE_SUBCLASS (1L<<26)
633 #define Py_TPFLAGS_STRING_SUBCLASS (1L<<27)
634 #define Py_TPFLAGS_UNICODE_SUBCLASS (1L<<28)
635 #define Py_TPFLAGS_DICT_SUBCLASS (1L<<29)
636 #define Py_TPFLAGS_BASE_EXC_SUBCLASS (1L<<30)
637 #define Py_TPFLAGS_TYPE_SUBCLASS (1L<<31)
638 
639 #define Py_TPFLAGS_DEFAULT_EXTERNAL ( \
640  Py_TPFLAGS_HAVE_GETCHARBUFFER | \
641  Py_TPFLAGS_HAVE_SEQUENCE_IN | \
642  Py_TPFLAGS_HAVE_INPLACEOPS | \
643  Py_TPFLAGS_HAVE_RICHCOMPARE | \
644  Py_TPFLAGS_HAVE_WEAKREFS | \
645  Py_TPFLAGS_HAVE_ITER | \
646  Py_TPFLAGS_HAVE_CLASS | \
647  Py_TPFLAGS_HAVE_STACKLESS_EXTENSION | \
648  Py_TPFLAGS_HAVE_INDEX | \
649  0)
650 #define Py_TPFLAGS_DEFAULT_CORE (Py_TPFLAGS_DEFAULT_EXTERNAL | \
651  Py_TPFLAGS_HAVE_VERSION_TAG)
652 
653 #ifdef Py_BUILD_CORE
654 #define Py_TPFLAGS_DEFAULT Py_TPFLAGS_DEFAULT_CORE
655 #else
656 #define Py_TPFLAGS_DEFAULT Py_TPFLAGS_DEFAULT_EXTERNAL
657 #endif
658 
659 #define PyType_HasFeature(t,f) (((t)->tp_flags & (f)) != 0)
660 #define PyType_FastSubclass(t,f) PyType_HasFeature(t,f)
661 
662 
663 /*
664 The macros Py_INCREF(op) and Py_DECREF(op) are used to increment or decrement
665 reference counts. Py_DECREF calls the object's deallocator function when
666 the refcount falls to 0; for
667 objects that don't contain references to other objects or heap memory
668 this can be the standard function free(). Both macros can be used
669 wherever a void expression is allowed. The argument must not be a
670 NULL pointer. If it may be NULL, use Py_XINCREF/Py_XDECREF instead.
671 The macro _Py_NewReference(op) initialize reference counts to 1, and
672 in special builds (Py_REF_DEBUG, Py_TRACE_REFS) performs additional
673 bookkeeping appropriate to the special build.
674 
675 We assume that the reference count field can never overflow; this can
676 be proven when the size of the field is the same as the pointer size, so
677 we ignore the possibility. Provided a C int is at least 32 bits (which
678 is implicitly assumed in many parts of this code), that's enough for
679 about 2**31 references to an object.
680 
681 XXX The following became out of date in Python 2.2, but I'm not sure
682 XXX what the full truth is now. Certainly, heap-allocated type objects
683 XXX can and should be deallocated.
684 Type objects should never be deallocated; the type pointer in an object
685 is not considered to be a reference to the type object, to save
686 complications in the deallocation function. (This is actually a
687 decision that's up to the implementer of each new type so if you want,
688 you can count such references to the type object.)
689 
690 *** WARNING*** The Py_DECREF macro must have a side-effect-free argument
691 since it may evaluate its argument multiple times. (The alternative
692 would be to mace it a proper function or assign it to a global temporary
693 variable first, both of which are slower; and in a multi-threaded
694 environment the global variable trick is not safe.)
695 */
696 
697 /* First define a pile of simple helper macros, one set per special
698  * build symbol. These either expand to the obvious things, or to
699  * nothing at all when the special mode isn't in effect. The main
700  * macros can later be defined just once then, yet expand to different
701  * things depending on which special build options are and aren't in effect.
702  * Trust me <wink>: while painful, this is 20x easier to understand than,
703  * e.g, defining _Py_NewReference five different times in a maze of nested
704  * #ifdefs (we used to do that -- it was impenetrable).
705  */
706 #ifdef Py_REF_DEBUG
707 PyAPI_DATA(Py_ssize_t) _Py_RefTotal;
708 PyAPI_FUNC(void) _Py_NegativeRefcount(const char *fname,
709  int lineno, PyObject *op);
710 PyAPI_FUNC(PyObject *) _PyDict_Dummy(void);
711 PyAPI_FUNC(PyObject *) _PySet_Dummy(void);
712 PyAPI_FUNC(Py_ssize_t) _Py_GetRefTotal(void);
713 #define _Py_INC_REFTOTAL _Py_RefTotal++
714 #define _Py_DEC_REFTOTAL _Py_RefTotal--
715 #define _Py_REF_DEBUG_COMMA ,
716 #define _Py_CHECK_REFCNT(OP) \
717 { if (((PyObject*)OP)->ob_refcnt < 0) \
718  _Py_NegativeRefcount(__FILE__, __LINE__, \
719  (PyObject *)(OP)); \
720 }
721 #else
722 #define _Py_INC_REFTOTAL
723 #define _Py_DEC_REFTOTAL
724 #define _Py_REF_DEBUG_COMMA
725 #define _Py_CHECK_REFCNT(OP) /* a semicolon */;
726 #endif /* Py_REF_DEBUG */
727 
728 #ifdef COUNT_ALLOCS
729 PyAPI_FUNC(void) inc_count(PyTypeObject *);
730 PyAPI_FUNC(void) dec_count(PyTypeObject *);
731 #define _Py_INC_TPALLOCS(OP) inc_count(Py_TYPE(OP))
732 #define _Py_INC_TPFREES(OP) dec_count(Py_TYPE(OP))
733 #define _Py_DEC_TPFREES(OP) Py_TYPE(OP)->tp_frees--
734 #define _Py_COUNT_ALLOCS_COMMA ,
735 #else
736 #define _Py_INC_TPALLOCS(OP)
737 #define _Py_INC_TPFREES(OP)
738 #define _Py_DEC_TPFREES(OP)
739 #define _Py_COUNT_ALLOCS_COMMA
740 #endif /* COUNT_ALLOCS */
741 
742 #ifdef Py_TRACE_REFS
743 /* Py_TRACE_REFS is such major surgery that we call external routines. */
744 PyAPI_FUNC(void) _Py_NewReference(PyObject *);
745 PyAPI_FUNC(void) _Py_ForgetReference(PyObject *);
746 PyAPI_FUNC(void) _Py_Dealloc(PyObject *);
747 PyAPI_FUNC(void) _Py_PrintReferences(FILE *);
748 PyAPI_FUNC(void) _Py_PrintReferenceAddresses(FILE *);
749 PyAPI_FUNC(void) _Py_AddToAllObjects(PyObject *, int force);
750 
751 #else
752 /* Without Py_TRACE_REFS, there's little enough to do that we expand code
753  * inline.
754  */
755 #define _Py_NewReference(op) ( \
756  _Py_INC_TPALLOCS(op) _Py_COUNT_ALLOCS_COMMA \
757  _Py_INC_REFTOTAL _Py_REF_DEBUG_COMMA \
758  Py_REFCNT(op) = 1)
759 
760 #define _Py_ForgetReference(op) _Py_INC_TPFREES(op)
761 
762 #define _Py_Dealloc(op) ( \
763  _Py_INC_TPFREES(op) _Py_COUNT_ALLOCS_COMMA \
764  (*Py_TYPE(op)->tp_dealloc)((PyObject *)(op)))
765 #endif /* !Py_TRACE_REFS */
766 
767 #define Py_INCREF(op) ( \
768  _Py_INC_REFTOTAL _Py_REF_DEBUG_COMMA \
769  ((PyObject*)(op))->ob_refcnt++)
770 
771 #define Py_DECREF(op) \
772  do { \
773  if (_Py_DEC_REFTOTAL _Py_REF_DEBUG_COMMA \
774  --((PyObject*)(op))->ob_refcnt != 0) \
775  _Py_CHECK_REFCNT(op) \
776  else \
777  _Py_Dealloc((PyObject *)(op)); \
778  } while (0)
779 
780 /* Safely decref `op` and set `op` to NULL, especially useful in tp_clear
781  * and tp_dealloc implementatons.
782  *
783  * Note that "the obvious" code can be deadly:
784  *
785  * Py_XDECREF(op);
786  * op = NULL;
787  *
788  * Typically, `op` is something like self->containee, and `self` is done
789  * using its `containee` member. In the code sequence above, suppose
790  * `containee` is non-NULL with a refcount of 1. Its refcount falls to
791  * 0 on the first line, which can trigger an arbitrary amount of code,
792  * possibly including finalizers (like __del__ methods or weakref callbacks)
793  * coded in Python, which in turn can release the GIL and allow other threads
794  * to run, etc. Such code may even invoke methods of `self` again, or cause
795  * cyclic gc to trigger, but-- oops! --self->containee still points to the
796  * object being torn down, and it may be in an insane state while being torn
797  * down. This has in fact been a rich historic source of miserable (rare &
798  * hard-to-diagnose) segfaulting (and other) bugs.
799  *
800  * The safe way is:
801  *
802  * Py_CLEAR(op);
803  *
804  * That arranges to set `op` to NULL _before_ decref'ing, so that any code
805  * triggered as a side-effect of `op` getting torn down no longer believes
806  * `op` points to a valid object.
807  *
808  * There are cases where it's safe to use the naive code, but they're brittle.
809  * For example, if `op` points to a Python integer, you know that destroying
810  * one of those can't cause problems -- but in part that relies on that
811  * Python integers aren't currently weakly referencable. Best practice is
812  * to use Py_CLEAR() even if you can't think of a reason for why you need to.
813  */
814 #define Py_CLEAR(op) \
815  do { \
816  if (op) { \
817  PyObject *_py_tmp = (PyObject *)(op); \
818  (op) = NULL; \
819  Py_DECREF(_py_tmp); \
820  } \
821  } while (0)
822 
823 /* Macros to use in case the object pointer may be NULL: */
824 #define Py_XINCREF(op) do { if ((op) == NULL) ; else Py_INCREF(op); } while (0)
825 #define Py_XDECREF(op) do { if ((op) == NULL) ; else Py_DECREF(op); } while (0)
826 
827 /*
828 These are provided as conveniences to Python runtime embedders, so that
829 they can have object code that is not dependent on Python compilation flags.
830 */
831 PyAPI_FUNC(void) Py_IncRef(PyObject *);
832 PyAPI_FUNC(void) Py_DecRef(PyObject *);
833 
834 /*
835 _Py_NoneStruct is an object of undefined type which can be used in contexts
836 where NULL (nil) is not suitable (since NULL often means 'error').
837 
838 Don't forget to apply Py_INCREF() when returning this value!!!
839 */
840 PyAPI_DATA(PyObject) _Py_NoneStruct; /* Don't use this directly */
841 #define Py_None (&_Py_NoneStruct)
842 
843 /* Macro for returning Py_None from a function */
844 #define Py_RETURN_NONE return Py_INCREF(Py_None), Py_None
845 
846 /*
847 Py_NotImplemented is a singleton used to signal that an operation is
848 not implemented for a given type combination.
849 */
850 PyAPI_DATA(PyObject) _Py_NotImplementedStruct; /* Don't use this directly */
851 #define Py_NotImplemented (&_Py_NotImplementedStruct)
852 
853 /* Rich comparison opcodes */
854 #define Py_LT 0
855 #define Py_LE 1
856 #define Py_EQ 2
857 #define Py_NE 3
858 #define Py_GT 4
859 #define Py_GE 5
860 
861 /* Maps Py_LT to Py_GT, ..., Py_GE to Py_LE.
862  * Defined in object.c.
863  */
864 PyAPI_DATA(int) _Py_SwappedOp[];
865 
866 /*
867 Define staticforward and statichere for source compatibility with old
868 C extensions.
869 
870 The staticforward define was needed to support certain broken C
871 compilers (notably SCO ODT 3.0, perhaps early AIX as well) botched the
872 static keyword when it was used with a forward declaration of a static
873 initialized structure. Standard C allows the forward declaration with
874 static, and we've decided to stop catering to broken C compilers.
875 (In fact, we expect that the compilers are all fixed eight years later.)
876 */
877 
878 #define staticforward static
879 #define statichere static
880 
881 
882 /*
883 More conventions
884 ================
885 
886 Argument Checking
887 -----------------
888 
889 Functions that take objects as arguments normally don't check for nil
890 arguments, but they do check the type of the argument, and return an
891 error if the function doesn't apply to the type.
892 
893 Failure Modes
894 -------------
895 
896 Functions may fail for a variety of reasons, including running out of
897 memory. This is communicated to the caller in two ways: an error string
898 is set (see errors.h), and the function result differs: functions that
899 normally return a pointer return NULL for failure, functions returning
900 an integer return -1 (which could be a legal return value too!), and
901 other functions return 0 for success and -1 for failure.
902 Callers should always check for errors before using the result. If
903 an error was set, the caller must either explicitly clear it, or pass
904 the error on to its caller.
905 
906 Reference Counts
907 ----------------
908 
909 It takes a while to get used to the proper usage of reference counts.
910 
911 Functions that create an object set the reference count to 1; such new
912 objects must be stored somewhere or destroyed again with Py_DECREF().
913 Some functions that 'store' objects, such as PyTuple_SetItem() and
914 PyList_SetItem(),
915 don't increment the reference count of the object, since the most
916 frequent use is to store a fresh object. Functions that 'retrieve'
917 objects, such as PyTuple_GetItem() and PyDict_GetItemString(), also
918 don't increment
919 the reference count, since most frequently the object is only looked at
920 quickly. Thus, to retrieve an object and store it again, the caller
921 must call Py_INCREF() explicitly.
922 
923 NOTE: functions that 'consume' a reference count, like
924 PyList_SetItem(), consume the reference even if the object wasn't
925 successfully stored, to simplify error handling.
926 
927 It seems attractive to make other functions that take an object as
928 argument consume a reference count; however, this may quickly get
929 confusing (even the current practice is already confusing). Consider
930 it carefully, it may save lots of calls to Py_INCREF() and Py_DECREF() at
931 times.
932 */
933 
934 
935 /* Trashcan mechanism, thanks to Christian Tismer.
936 
937 When deallocating a container object, it's possible to trigger an unbounded
938 chain of deallocations, as each Py_DECREF in turn drops the refcount on "the
939 next" object in the chain to 0. This can easily lead to stack faults, and
940 especially in threads (which typically have less stack space to work with).
941 
942 A container object that participates in cyclic gc can avoid this by
943 bracketing the body of its tp_dealloc function with a pair of macros:
944 
945 static void
946 mytype_dealloc(mytype *p)
947 {
948  ... declarations go here ...
949 
950  PyObject_GC_UnTrack(p); // must untrack first
951  Py_TRASHCAN_SAFE_BEGIN(p)
952  ... The body of the deallocator goes here, including all calls ...
953  ... to Py_DECREF on contained objects. ...
954  Py_TRASHCAN_SAFE_END(p)
955 }
956 
957 CAUTION: Never return from the middle of the body! If the body needs to
958 "get out early", put a label immediately before the Py_TRASHCAN_SAFE_END
959 call, and goto it. Else the call-depth counter (see below) will stay
960 above 0 forever, and the trashcan will never get emptied.
961 
962 How it works: The BEGIN macro increments a call-depth counter. So long
963 as this counter is small, the body of the deallocator is run directly without
964 further ado. But if the counter gets large, it instead adds p to a list of
965 objects to be deallocated later, skips the body of the deallocator, and
966 resumes execution after the END macro. The tp_dealloc routine then returns
967 without deallocating anything (and so unbounded call-stack depth is avoided).
968 
969 When the call stack finishes unwinding again, code generated by the END macro
970 notices this, and calls another routine to deallocate all the objects that
971 may have been added to the list of deferred deallocations. In effect, a
972 chain of N deallocations is broken into N / PyTrash_UNWIND_LEVEL pieces,
973 with the call stack never exceeding a depth of PyTrash_UNWIND_LEVEL.
974 */
975 
976 /* This is the old private API, invoked by the macros before 2.7.4.
977  Kept for binary compatibility of extensions. */
978 PyAPI_FUNC(void) _PyTrash_deposit_object(PyObject*);
979 PyAPI_FUNC(void) _PyTrash_destroy_chain(void);
980 PyAPI_DATA(int) _PyTrash_delete_nesting;
981 PyAPI_DATA(PyObject *) _PyTrash_delete_later;
982 
983 /* The new thread-safe private API, invoked by the macros below. */
984 PyAPI_FUNC(void) _PyTrash_thread_deposit_object(PyObject*);
985 PyAPI_FUNC(void) _PyTrash_thread_destroy_chain(void);
986 
987 #define PyTrash_UNWIND_LEVEL 50
988 
989 /* Note the workaround for when the thread state is NULL (issue #17703) */
990 #define Py_TRASHCAN_SAFE_BEGIN(op) \
991  do { \
992  PyThreadState *_tstate = PyThreadState_GET(); \
993  if (!_tstate || \
994  _tstate->trash_delete_nesting < PyTrash_UNWIND_LEVEL) { \
995  if (_tstate) \
996  ++_tstate->trash_delete_nesting;
997  /* The body of the deallocator is here. */
998 #define Py_TRASHCAN_SAFE_END(op) \
999  if (_tstate) { \
1000  --_tstate->trash_delete_nesting; \
1001  if (_tstate->trash_delete_later \
1002  && _tstate->trash_delete_nesting <= 0) \
1003  _PyTrash_thread_destroy_chain(); \
1004  } \
1005  } \
1006  else \
1007  _PyTrash_thread_deposit_object((PyObject*)op); \
1008  } while (0);
1009 
1010 #ifdef __cplusplus
1011 }
1012 #endif
1013 #endif /* !Py_OBJECT_H */
charbufferproc bf_getcharbuffer
Definition: object.h:299
ternaryfunc tp_call
Definition: object.h:347
getiterfunc tp_iter
Definition: object.h:376
hashfunc tp_hash
Definition: object.h:346
inquiry tp_clear
Definition: object.h:365
binaryfunc nb_subtract
Definition: object.h:229
richcmpfunc tp_richcompare
Definition: object.h:369
descrgetfunc tp_descr_get
Definition: object.h:385
cmpfunc tp_compare
Definition: object.h:335
freefunc tp_free
Definition: object.h:391
struct _typeobject * tp_base
Definition: object.h:383
int(* getsegcountproc)(PyObject *, int *)
Definition: object.h:154
binaryfunc nb_add
Definition: object.h:228
objobjproc sq_contains
Definition: object.h:283
PyObject *(* allocfunc)(struct _typeobject *, Py_ssize_t)
Definition: object.h:322
setattrfunc tp_setattr
Definition: object.h:334
PyAPI_FUNC(int) PyType_IsSubtype(PyTypeObject *
printfunc tp_print
Definition: object.h:332
binaryfunc nb_inplace_or
Definition: object.h:262
long tp_flags
Definition: object.h:356
inquiry nb_nonzero
Definition: object.h:238
coercion nb_coerce
Definition: object.h:245
#define _Py_ForgetReference(op)
Definition: object.h:760
Py_ssize_t(* charbufferproc)(PyObject *, Py_ssize_t, char **)
Definition: object.h:160
Py_ssize_t
Definition: object.h:450
setattrofunc tp_setattro
Definition: object.h:350
binaryfunc sq_inplace_concat
Definition: object.h:285
PyObject *(* newfunc)(struct _typeobject *, PyObject *, PyObject *)
Definition: object.h:321
Py_ssize_t * strides
Definition: object.h:174
int(* getwritebufferproc)(PyObject *, int, void **)
Definition: object.h:153
FILE int
Definition: object.h:459
unaryfunc nb_float
Definition: object.h:248
destructor tp_del
Definition: object.h:398
getbufferproc bf_getbuffer
Definition: object.h:300
allocfunc tp_alloc
Definition: object.h:389
binaryfunc nb_inplace_remainder
Definition: object.h:256
descrsetfunc tp_descr_set
Definition: object.h:386
unaryfunc nb_hex
Definition: object.h:250
PySequenceMethods as_sequence
Definition: object.h:421
binaryfunc nb_inplace_true_divide
Definition: object.h:269
PyObject *(* descrgetfunc)(PyObject *, PyObject *, PyObject *)
Definition: object.h:318
PyObject * tp_cache
Definition: object.h:395
struct _object PyObject
PyObject *(* binaryfunc)(PyObject *, PyObject *)
Definition: object.h:134
Py_ssize_t * suboffsets
Definition: object.h:175
binaryfunc nb_inplace_and
Definition: object.h:260
Py_ssize_t tp_basicsize
Definition: object.h:327
newfunc tp_new
Definition: object.h:390
struct _typeobject PyTypeObject
struct PyMethodDef * tp_methods
Definition: object.h:380
binaryfunc nb_true_divide
Definition: object.h:267
int readonly
Definition: object.h:170
binaryfunc nb_inplace_subtract
Definition: object.h:253
unaryfunc nb_long
Definition: object.h:247
unaryfunc nb_positive
Definition: object.h:236
int(* intobjargproc)(PyObject *, int, PyObject *)
Definition: object.h:143
int(* traverseproc)(PyObject *, visitproc, void *)
Definition: object.h:217
void(* releasebufferproc)(PyObject *, Py_buffer *)
Definition: object.h:182
ssizeobjargproc sq_ass_item
Definition: object.h:281
lenfunc sq_length
Definition: object.h:276
Py_ssize_t tp_itemsize
Definition: object.h:327
PyObject * tp_mro
Definition: object.h:394
binaryfunc nb_floor_divide
Definition: object.h:266
writebufferproc bf_getwritebuffer
Definition: object.h:297
unaryfunc nb_negative
Definition: object.h:235
PyObject *(* richcmpfunc)(PyObject *, PyObject *, int)
Definition: object.h:315
lenfunc mp_length
Definition: object.h:290
unaryfunc nb_int
Definition: object.h:246
#define _Py_NewReference(op)
Definition: object.h:755
void(* freefunc)(void *)
Definition: object.h:305
unaryfunc nb_index
Definition: object.h:272
PyMappingMethods * tp_as_mapping
Definition: object.h:342
PyObject * tp_subclasses
Definition: object.h:396
unaryfunc nb_invert
Definition: object.h:239
releasebufferproc bf_releasebuffer
Definition: object.h:301
PyObject * obj
Definition: object.h:166
int(* getcharbufferproc)(PyObject *, int, char **)
Definition: object.h:155
ternaryfunc nb_power
Definition: object.h:234
int(* coercion)(PyObject **, PyObject **)
Definition: object.h:138
Py_ssize_t smalltable[2]
Definition: object.h:176
PyBufferProcs as_buffer
Definition: object.h:426
binaryfunc nb_inplace_lshift
Definition: object.h:258
int(* cmpfunc)(PyObject *, PyObject *)
Definition: object.h:312
PyObject *(* reprfunc)(PyObject *)
Definition: object.h:313
Py_ssize_t(* writebufferproc)(PyObject *, Py_ssize_t, void **)
Definition: object.h:158
binaryfunc sq_concat
Definition: object.h:277
Py_ssize_t(* segcountproc)(PyObject *, Py_ssize_t *)
Definition: object.h:159
PyObject *(* iternextfunc)(PyObject *)
Definition: object.h:317
int(* ssizessizeobjargproc)(PyObject *, Py_ssize_t, Py_ssize_t, PyObject *)
Definition: object.h:146
PyObject * tp_weaklist
Definition: object.h:397
int(* getbufferproc)(PyObject *, Py_buffer *, int)
Definition: object.h:181
Py_ssize_t len
Definition: object.h:167
ssizeargfunc sq_repeat
Definition: object.h:278
binaryfunc mp_subscript
Definition: object.h:291
PyAPI_DATA(PyTypeObject) PyType_Type
Py_ssize_t itemsize
Definition: object.h:168
int(* getreadbufferproc)(PyObject *, int, void **)
Definition: object.h:152
void * buf
Definition: object.h:165
Py_ssize_t * shape
Definition: object.h:173
int(* objobjproc)(PyObject *, PyObject *)
Definition: object.h:215
PyObject *(* unaryfunc)(PyObject *)
Definition: object.h:133
int(* inquiry)(PyObject *)
Definition: object.h:136
traverseproc tp_traverse
Definition: object.h:362
struct PyGetSetDef * tp_getset
Definition: object.h:382
binaryfunc nb_divide
Definition: object.h:231
binaryfunc nb_inplace_multiply
Definition: object.h:254
char char int FILE
Definition: fileobject.h:45
const char PyObject const char long
Definition: modsupport.h:41
unaryfunc nb_oct
Definition: object.h:249
int(* ssizeobjargproc)(PyObject *, Py_ssize_t, PyObject *)
Definition: object.h:145
PyObject *(* getattrfunc)(PyObject *, char *)
Definition: object.h:308
getattrfunc tp_getattr
Definition: object.h:333
#define _Py_Dealloc(op)
Definition: object.h:762
struct _heaptypeobject PyHeapTypeObject
binaryfunc nb_inplace_floor_divide
Definition: object.h:268
binaryfunc nb_inplace_xor
Definition: object.h:261
destructor tp_dealloc
Definition: object.h:331
PyObject *(* ssizessizeargfunc)(PyObject *, Py_ssize_t, Py_ssize_t)
Definition: object.h:142
readbufferproc bf_getreadbuffer
Definition: object.h:296
PyObject *(* getattrofunc)(PyObject *, PyObject *)
Definition: object.h:309
PySequenceMethods * tp_as_sequence
Definition: object.h:341
ssizeargfunc sq_item
Definition: object.h:279
binaryfunc nb_lshift
Definition: object.h:240
getattrofunc tp_getattro
Definition: object.h:349
binaryfunc nb_multiply
Definition: object.h:230
ternaryfunc nb_inplace_power
Definition: object.h:257
binaryfunc nb_and
Definition: object.h:242
PyObject *(* ternaryfunc)(PyObject *, PyObject *, PyObject *)
Definition: object.h:135
PyObject * ht_slots
Definition: object.h:427
void(* destructor)(PyObject *)
Definition: object.h:306
PyObject * tp_bases
Definition: object.h:393
PyBufferProcs * tp_as_buffer
Definition: object.h:353
int _PyObject_SlotCompare(PyObject *, PyObject *)
PyObject *(* ssizeargfunc)(PyObject *, Py_ssize_t)
Definition: object.h:141
ssizessizeargfunc sq_slice
Definition: object.h:280
binaryfunc nb_inplace_rshift
Definition: object.h:259
const char * tp_doc
Definition: object.h:358
struct PyMemberDef * tp_members
Definition: object.h:381
iternextfunc tp_iternext
Definition: object.h:377
int(* printfunc)(PyObject *, FILE *, int)
Definition: object.h:307
Py_ssize_t tp_weaklistoffset
Definition: object.h:372
PyMappingMethods as_mapping
Definition: object.h:420
PyObject * ht_name
Definition: object.h:427
PyNumberMethods as_number
Definition: object.h:419
binaryfunc nb_remainder
Definition: object.h:232
binaryfunc nb_or
Definition: object.h:244
PyNumberMethods * tp_as_number
Definition: object.h:340
PyObject *(* getiterfunc)(PyObject *)
Definition: object.h:316
initproc tp_init
Definition: object.h:388
int(* visitproc)(PyObject *, void *)
Definition: object.h:216
objobjargproc mp_ass_subscript
Definition: object.h:292
PyTypeObject ht_type
Definition: object.h:418
inquiry tp_is_gc
Definition: object.h:392
int ndim
Definition: object.h:171
unsigned int tp_version_tag
Definition: object.h:401
int(* descrsetfunc)(PyObject *, PyObject *, PyObject *)
Definition: object.h:319
binaryfunc nb_inplace_divide
Definition: object.h:255
char * format
Definition: object.h:172
int(* intintobjargproc)(PyObject *, int, int, PyObject *)
Definition: object.h:144
reprfunc tp_str
Definition: object.h:348
binaryfunc nb_rshift
Definition: object.h:241
binaryfunc nb_xor
Definition: object.h:243
binaryfunc nb_inplace_add
Definition: object.h:252
ssizeargfunc sq_inplace_repeat
Definition: object.h:286
unaryfunc nb_absolute
Definition: object.h:237
segcountproc bf_getsegcount
Definition: object.h:298
Py_ssize_t(* readbufferproc)(PyObject *, Py_ssize_t, void **)
Definition: object.h:157
#define PyObject_HEAD
Definition: object.h:78
ssizessizeobjargproc sq_ass_slice
Definition: object.h:282
int(* setattrfunc)(PyObject *, char *, PyObject *)
Definition: object.h:310
int(* initproc)(PyObject *, PyObject *, PyObject *)
Definition: object.h:320
int(* objobjargproc)(PyObject *, PyObject *, PyObject *)
Definition: object.h:147
reprfunc tp_repr
Definition: object.h:336
#define PyObject_VAR_HEAD
Definition: object.h:96
Py_ssize_t(* lenfunc)(PyObject *)
Definition: object.h:137
Py_ssize_t tp_dictoffset
Definition: object.h:387
struct bufferinfo Py_buffer
const char * tp_name
Definition: object.h:326
int(* setattrofunc)(PyObject *, PyObject *, PyObject *)
Definition: object.h:311
PyObject * tp_dict
Definition: object.h:384
#define Py_DEPRECATED(VERSION_UNUSED)
Definition: pyport.h:632
binaryfunc nb_divmod
Definition: object.h:233
long(* hashfunc)(PyObject *)
Definition: object.h:314
int char int lineno
Definition: node.h:20