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78 lines
2.3 KiB
C
78 lines
2.3 KiB
C
/* typecast.h - definitions for typecasters
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*
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* Copyright (C) 2003 Federico Di Gregorio <fog@debian.org>
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*
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* This file is part of psycopg.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2,
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* or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef PSYCOPG_TYPECAST_H
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#define PSYCOPG_TYPECAST_H 1
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#include <Python.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* type of type-casting functions (both C and Python) */
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typedef PyObject *(*typecast_function)(PyObject *, PyObject *);
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/** typecast type **/
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extern PyTypeObject typecastType;
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typedef struct {
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PyObject_HEAD
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PyObject *name; /* the name of this type */
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PyObject *values; /* the different types this instance can match */
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typecast_function ccast; /* the C casting function */
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PyObject *pcast; /* the python casting function */
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} typecastObject;
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/* the initialization values are stored here */
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typedef struct {
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char *name;
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long int *values;
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typecast_function cast;
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} typecastObject_initlist;
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/* the type dictionary, much faster to access it globally */
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extern PyObject *psyco_types;
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extern PyObject *psyco_binary_types;
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/* the default casting objects, used when no other objects are available */
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extern PyObject *psyco_default_cast;
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extern PyObject *psyco_default_binary_cast;
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/** exported functions **/
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/* used by module.c to init the type system and register types */
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extern int typecast_init(PyObject *dict);
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extern int typecast_add(PyObject *obj, int binary);
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/* the C callable typecastObject creator function */
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extern PyObject *typecast_from_c(typecastObject_initlist *type);
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/* the python callable typecast creator function */
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extern PyObject *typecast_from_python(
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PyObject *self, PyObject *args, PyObject *keywds);
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#endif /* !defined(PSYCOPG_TYPECAST_H) */
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