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920dae64 AT |
1 | |
2 | /* Class object interface */ | |
3 | ||
4 | /* Revealing some structures (not for general use) */ | |
5 | ||
6 | #ifndef Py_CLASSOBJECT_H | |
7 | #define Py_CLASSOBJECT_H | |
8 | #ifdef __cplusplus | |
9 | extern "C" { | |
10 | #endif | |
11 | ||
12 | typedef struct { | |
13 | PyObject_HEAD | |
14 | PyObject *cl_bases; /* A tuple of class objects */ | |
15 | PyObject *cl_dict; /* A dictionary */ | |
16 | PyObject *cl_name; /* A string */ | |
17 | /* The following three are functions or NULL */ | |
18 | PyObject *cl_getattr; | |
19 | PyObject *cl_setattr; | |
20 | PyObject *cl_delattr; | |
21 | } PyClassObject; | |
22 | ||
23 | typedef struct { | |
24 | PyObject_HEAD | |
25 | PyClassObject *in_class; /* The class object */ | |
26 | PyObject *in_dict; /* A dictionary */ | |
27 | PyObject *in_weakreflist; /* List of weak references */ | |
28 | } PyInstanceObject; | |
29 | ||
30 | typedef struct { | |
31 | PyObject_HEAD | |
32 | PyObject *im_func; /* The callable object implementing the method */ | |
33 | PyObject *im_self; /* The instance it is bound to, or NULL */ | |
34 | PyObject *im_class; /* The class that asked for the method */ | |
35 | PyObject *im_weakreflist; /* List of weak references */ | |
36 | } PyMethodObject; | |
37 | ||
38 | PyAPI_DATA(PyTypeObject) PyClass_Type, PyInstance_Type, PyMethod_Type; | |
39 | ||
40 | #define PyClass_Check(op) ((op)->ob_type == &PyClass_Type) | |
41 | #define PyInstance_Check(op) ((op)->ob_type == &PyInstance_Type) | |
42 | #define PyMethod_Check(op) ((op)->ob_type == &PyMethod_Type) | |
43 | ||
44 | PyAPI_FUNC(PyObject *) PyClass_New(PyObject *, PyObject *, PyObject *); | |
45 | PyAPI_FUNC(PyObject *) PyInstance_New(PyObject *, PyObject *, | |
46 | PyObject *); | |
47 | PyAPI_FUNC(PyObject *) PyInstance_NewRaw(PyObject *, PyObject *); | |
48 | PyAPI_FUNC(PyObject *) PyMethod_New(PyObject *, PyObject *, PyObject *); | |
49 | ||
50 | PyAPI_FUNC(PyObject *) PyMethod_Function(PyObject *); | |
51 | PyAPI_FUNC(PyObject *) PyMethod_Self(PyObject *); | |
52 | PyAPI_FUNC(PyObject *) PyMethod_Class(PyObject *); | |
53 | ||
54 | /* Look up attribute with name (a string) on instance object pinst, using | |
55 | * only the instance and base class dicts. If a descriptor is found in | |
56 | * a class dict, the descriptor is returned without calling it. | |
57 | * Returns NULL if nothing found, else a borrowed reference to the | |
58 | * value associated with name in the dict in which name was found. | |
59 | * The point of this routine is that it never calls arbitrary Python | |
60 | * code, so is always "safe": all it does is dict lookups. The function | |
61 | * can't fail, never sets an exception, and NULL is not an error (it just | |
62 | * means "not found"). | |
63 | */ | |
64 | PyAPI_FUNC(PyObject *) _PyInstance_Lookup(PyObject *pinst, PyObject *name); | |
65 | ||
66 | /* Macros for direct access to these values. Type checks are *not* | |
67 | done, so use with care. */ | |
68 | #define PyMethod_GET_FUNCTION(meth) \ | |
69 | (((PyMethodObject *)meth) -> im_func) | |
70 | #define PyMethod_GET_SELF(meth) \ | |
71 | (((PyMethodObject *)meth) -> im_self) | |
72 | #define PyMethod_GET_CLASS(meth) \ | |
73 | (((PyMethodObject *)meth) -> im_class) | |
74 | ||
75 | PyAPI_FUNC(int) PyClass_IsSubclass(PyObject *, PyObject *); | |
76 | ||
77 | ||
78 | #ifdef __cplusplus | |
79 | } | |
80 | #endif | |
81 | #endif /* !Py_CLASSOBJECT_H */ |