#ifndef Py_INTERNAL_TYPEOBJECT_H

#define Py_INTERNAL_TYPEOBJECT_H

#ifdef __cplusplus

extern "C" {

#endif

#ifndef Py_BUILD_CORE

# error "this header requires Py_BUILD_CORE define"

#endif

/* runtime lifecycle */

extern PyStatus _PyTypes_InitState(PyInterpreterState *);

extern PyStatus _PyTypes_InitTypes(PyInterpreterState *);

extern void _PyTypes_Fini(PyInterpreterState *);

/* other API */

// Type attribute lookup cache: speed up attribute and method lookups,

// see _PyType_Lookup().

struct type_cache_entry {

unsigned int version; // initialized from type->tp_version_tag

PyObject *name; // reference to exactly a str or None

PyObject *value; // borrowed reference or NULL

};

#define MCACHE_SIZE_EXP 12

#define MCACHE_STATS 0

struct type_cache {

struct type_cache_entry hashtable[1 << MCACHE_SIZE_EXP];

#if MCACHE_STATS

size_t hits;

size_t misses;

size_t collisions;

#endif

};

extern PyStatus _PyTypes_InitSlotDefs(void);

#ifdef __cplusplus

}

#endif

#endif /* !Py_INTERNAL_TYPEOBJECT_H */