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| 1 | |||
| 2 | /* Function object interface */ | ||
| 3 | |||
| 4 | #ifndef Py_FUNCOBJECT_H | ||
| 5 | #define Py_FUNCOBJECT_H | ||
| 6 | #ifdef __cplusplus | ||
| 7 | extern "C" { | ||
| 8 | #endif | ||
| 9 | |||
| 10 | /* Function objects and code objects should not be confused with each other: | ||
| 11 | * | ||
| 12 | * Function objects are created by the execution of the 'def' statement. | ||
| 13 | * They reference a code object in their func_code attribute, which is a | ||
| 14 | * purely syntactic object, i.e. nothing more than a compiled version of some | ||
| 15 | * source code lines. There is one code object per source code "fragment", | ||
| 16 | * but each code object can be referenced by zero or many function objects | ||
| 17 | * depending only on how many times the 'def' statement in the source was | ||
| 18 | * executed so far. | ||
| 19 | */ | ||
| 20 | |||
| 21 | typedef struct { | ||
| 22 | PyObject_HEAD | ||
| 23 | PyObject *func_code; /* A code object */ | ||
| 24 | PyObject *func_globals; /* A dictionary (other mappings won't do) */ | ||
| 25 | PyObject *func_defaults; /* NULL or a tuple */ | ||
| 26 | PyObject *func_closure; /* NULL or a tuple of cell objects */ | ||
| 27 | PyObject *func_doc; /* The __doc__ attribute, can be anything */ | ||
| 28 | PyObject *func_name; /* The __name__ attribute, a string object */ | ||
| 29 | PyObject *func_dict; /* The __dict__ attribute, a dict or NULL */ | ||
| 30 | PyObject *func_weakreflist; /* List of weak references */ | ||
| 31 | PyObject *func_module; /* The __module__ attribute, can be anything */ | ||
| 32 | |||
| 33 | /* Invariant: | ||
| 34 | * func_closure contains the bindings for func_code->co_freevars, so | ||
| 35 | * PyTuple_Size(func_closure) == PyCode_GetNumFree(func_code) | ||
| 36 | * (func_closure may be NULL if PyCode_GetNumFree(func_code) == 0). | ||
| 37 | */ | ||
| 38 | } PyFunctionObject; | ||
| 39 | |||
| 40 | PyAPI_DATA(PyTypeObject) PyFunction_Type; | ||
| 41 | |||
| 42 | #define PyFunction_Check(op) ((op)->ob_type == &PyFunction_Type) | ||
| 43 | |||
| 44 | PyAPI_FUNC(PyObject *) PyFunction_New(PyObject *, PyObject *); | ||
| 45 | PyAPI_FUNC(PyObject *) PyFunction_GetCode(PyObject *); | ||
| 46 | PyAPI_FUNC(PyObject *) PyFunction_GetGlobals(PyObject *); | ||
| 47 | PyAPI_FUNC(PyObject *) PyFunction_GetModule(PyObject *); | ||
| 48 | PyAPI_FUNC(PyObject *) PyFunction_GetDefaults(PyObject *); | ||
| 49 | PyAPI_FUNC(int) PyFunction_SetDefaults(PyObject *, PyObject *); | ||
| 50 | PyAPI_FUNC(PyObject *) PyFunction_GetClosure(PyObject *); | ||
| 51 | PyAPI_FUNC(int) PyFunction_SetClosure(PyObject *, PyObject *); | ||
| 52 | |||
| 53 | /* Macros for direct access to these values. Type checks are *not* | ||
| 54 | done, so use with care. */ | ||
| 55 | #define PyFunction_GET_CODE(func) \ | ||
| 56 | (((PyFunctionObject *)func) -> func_code) | ||
| 57 | #define PyFunction_GET_GLOBALS(func) \ | ||
| 58 | (((PyFunctionObject *)func) -> func_globals) | ||
| 59 | #define PyFunction_GET_MODULE(func) \ | ||
| 60 | (((PyFunctionObject *)func) -> func_module) | ||
| 61 | #define PyFunction_GET_DEFAULTS(func) \ | ||
| 62 | (((PyFunctionObject *)func) -> func_defaults) | ||
| 63 | #define PyFunction_GET_CLOSURE(func) \ | ||
| 64 | (((PyFunctionObject *)func) -> func_closure) | ||
| 65 | |||
| 66 | /* The classmethod and staticmethod types lives here, too */ | ||
| 67 | PyAPI_DATA(PyTypeObject) PyClassMethod_Type; | ||
| 68 | PyAPI_DATA(PyTypeObject) PyStaticMethod_Type; | ||
| 69 | |||
| 70 | PyAPI_FUNC(PyObject *) PyClassMethod_New(PyObject *); | ||
| 71 | PyAPI_FUNC(PyObject *) PyStaticMethod_New(PyObject *); | ||
| 72 | |||
| 73 | #ifdef __cplusplus | ||
| 74 | } | ||
| 75 | #endif | ||
| 76 | #endif /* !Py_FUNCOBJECT_H */ | ||