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