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https://github.com/python/cpython.git
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1123 lines
22 KiB
C
1123 lines
22 KiB
C
/***********************************************************
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Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
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The Netherlands.
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All Rights Reserved
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted,
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in
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supporting documentation, and that the names of Stichting Mathematisch
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Centrum or CWI or Corporation for National Research Initiatives or
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CNRI not be used in advertising or publicity pertaining to
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distribution of the software without specific, written prior
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permission.
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While CWI is the initial source for this software, a modified version
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is made available by the Corporation for National Research Initiatives
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(CNRI) at the Internet address ftp://ftp.python.org.
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STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH
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REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH
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CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
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DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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PERFORMANCE OF THIS SOFTWARE.
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******************************************************************/
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/* Abstract Object Interface (many thanks to Jim Fulton) */
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#include "Python.h"
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#define Py_TRY(E) if(!(E)) return NULL
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#define Py_ASSERT(EXP,E,V) if(!(EXP)) return PyErr_SetString(E,V), (void*)NULL
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#define SPAM printf("line %d\n",__LINE__)
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static PyObject *
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Py_ReturnMethodError(name)
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char *name;
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{
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if(! name) name = "Unknown Error";
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PyErr_SetString(PyExc_AttributeError,name);
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return 0;
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}
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static PyObject *
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Py_ReturnNullError()
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{
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if(! PyErr_Occurred())
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PyErr_SetString(PyExc_SystemError,
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"null argument to internal routine");
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return 0;
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}
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int
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PyObject_Cmp(o1, o2, result)
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PyObject *o1;
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PyObject *o2;
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int *result;
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{
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int r;
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if(! o1 || ! o2) return Py_ReturnNullError(),-1;
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r=PyObject_Compare(o1,o2);
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if(PyErr_Occurred()) return -1;
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*result=r;
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return 0;
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}
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#if 0 /* Already in object.c */
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int
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PyCallable_Check(x)
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PyObject *x;
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{
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if (x == NULL)
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return 0;
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if (x->ob_type->tp_call != NULL ||
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PyFunction_Check(x) ||
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PyMethod_Check(x) ||
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PyCFunction_Check(x) ||
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PyClass_Check(x))
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return 1;
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if (PyInstance_Check(x)) {
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PyObject *call = PyObject_GetAttrString(x, "__call__");
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if (call == NULL) {
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PyErr_Clear();
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return 0;
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}
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/* Could test recursively but don't, for fear of endless
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recursion if some joker sets self.__call__ = self */
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Py_DECREF(call);
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return 1;
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}
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return 0;
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}
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#endif
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PyObject *
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PyObject_Type(o)
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PyObject *o;
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{
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PyObject *v;
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if(! o) return Py_ReturnNullError();
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v = (PyObject *)o->ob_type;
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Py_INCREF(v);
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return v;
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}
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int
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PyObject_Length(o)
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PyObject *o;
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{
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PySequenceMethods *m;
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if(! o) return Py_ReturnNullError(),-1;
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if((m=o->ob_type->tp_as_sequence) && m->sq_length)
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return m->sq_length(o);
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return PyMapping_Length(o);
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}
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PyObject *
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PyObject_GetItem(o, key)
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PyObject *o;
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PyObject *key;
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{
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PyMappingMethods *m;
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if(! o || ! key) return Py_ReturnNullError();
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if((m=o->ob_type->tp_as_mapping) && m->mp_subscript)
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return m->mp_subscript(o,key);
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if(PyInt_Check(key))
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return PySequence_GetItem(o,PyInt_AsLong(key));
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PyErr_SetString(PyExc_TypeError,"expected integer index");
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return NULL;
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}
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int
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PyObject_SetItem(o, key, value)
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PyObject *o;
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PyObject *key;
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PyObject *value;
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{
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PyMappingMethods *m;
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if(! o || ! key || ! value) return Py_ReturnNullError(),-1;
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if((m=o->ob_type->tp_as_mapping) && m->mp_ass_subscript)
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return m->mp_ass_subscript(o,key,value);
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if(PyInt_Check(key))
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return PySequence_SetItem(o,PyInt_AsLong(key),value);
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PyErr_SetString(PyExc_TypeError,"expected integer index");
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return -1;
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}
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int
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PyObject_DelItem(o, key)
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PyObject *o;
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PyObject *key;
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{
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PyMappingMethods *m;
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if(! o || ! key) return Py_ReturnNullError(),-1;
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if((m=o->ob_type->tp_as_mapping) && m->mp_ass_subscript)
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return m->mp_ass_subscript(o,key,(PyObject*)NULL);
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if(PyInt_Check(key))
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return PySequence_SetItem(o,PyInt_AsLong(key),(PyObject*)NULL);
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PyErr_SetString(PyExc_TypeError,"expected integer index");
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return -1;
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}
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int
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PyNumber_Check(o)
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PyObject *o;
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{
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return o && o->ob_type->tp_as_number;
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}
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#define BINOP(opname, ropname, thisfunc) \
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if (!PyInstance_Check(v) && !PyInstance_Check(w)) \
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; \
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else \
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return PyInstance_DoBinOp(v, w, opname, ropname, thisfunc)
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PyObject *
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PyNumber_Or(v, w)
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PyObject *v, *w;
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{
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extern int PyNumber_Coerce();
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BINOP("__or__", "__ror__", PyNumber_Or);
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if (v->ob_type->tp_as_number != NULL) {
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PyObject *x = NULL;
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PyObject * (*f) Py_FPROTO((PyObject *, PyObject *));
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if (PyNumber_Coerce(&v, &w) != 0)
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return NULL;
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if ((f = v->ob_type->tp_as_number->nb_or) != NULL)
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x = (*f)(v, w);
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Py_DECREF(v);
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Py_DECREF(w);
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if (f != NULL)
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return x;
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}
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PyErr_SetString(PyExc_TypeError, "bad operand type(s) for |");
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return NULL;
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}
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PyObject *
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PyNumber_Xor(v, w)
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PyObject *v, *w;
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{
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extern int PyNumber_Coerce();
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BINOP("__xor__", "__rxor__", PyNumber_Xor);
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if (v->ob_type->tp_as_number != NULL) {
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PyObject *x = NULL;
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PyObject * (*f) Py_FPROTO((PyObject *, PyObject *));
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if (PyNumber_Coerce(&v, &w) != 0)
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return NULL;
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if ((f = v->ob_type->tp_as_number->nb_xor) != NULL)
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x = (*f)(v, w);
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Py_DECREF(v);
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Py_DECREF(w);
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if (f != NULL)
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return x;
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}
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PyErr_SetString(PyExc_TypeError, "bad operand type(s) for ^");
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return NULL;
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}
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PyObject *
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PyNumber_And(v, w)
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PyObject *v, *w;
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{
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BINOP("__and__", "__rand__", PyNumber_And);
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if (v->ob_type->tp_as_number != NULL) {
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PyObject *x = NULL;
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PyObject * (*f) Py_FPROTO((PyObject *, PyObject *));
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if (PyNumber_Coerce(&v, &w) != 0)
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return NULL;
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if ((f = v->ob_type->tp_as_number->nb_and) != NULL)
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x = (*f)(v, w);
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Py_DECREF(v);
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Py_DECREF(w);
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if (f != NULL)
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return x;
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}
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PyErr_SetString(PyExc_TypeError, "bad operand type(s) for &");
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return NULL;
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}
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PyObject *
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PyNumber_Lshift(v, w)
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PyObject *v, *w;
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{
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BINOP("__lshift__", "__rlshift__", PyNumber_Lshift);
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if (v->ob_type->tp_as_number != NULL) {
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PyObject *x = NULL;
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PyObject * (*f) Py_FPROTO((PyObject *, PyObject *));
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if (PyNumber_Coerce(&v, &w) != 0)
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return NULL;
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if ((f = v->ob_type->tp_as_number->nb_lshift) != NULL)
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x = (*f)(v, w);
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Py_DECREF(v);
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Py_DECREF(w);
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if (f != NULL)
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return x;
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}
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PyErr_SetString(PyExc_TypeError, "bad operand type(s) for <<");
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return NULL;
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}
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PyObject *
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PyNumber_Rshift(v, w)
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PyObject *v, *w;
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{
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BINOP("__rshift__", "__rrshift__", PyNumber_Rshift);
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if (v->ob_type->tp_as_number != NULL) {
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PyObject *x = NULL;
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PyObject * (*f) Py_FPROTO((PyObject *, PyObject *));
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if (PyNumber_Coerce(&v, &w) != 0)
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return NULL;
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if ((f = v->ob_type->tp_as_number->nb_rshift) != NULL)
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x = (*f)(v, w);
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Py_DECREF(v);
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Py_DECREF(w);
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|
if (f != NULL)
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return x;
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|
}
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PyErr_SetString(PyExc_TypeError, "bad operand type(s) for >>");
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return NULL;
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|
}
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PyObject *
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PyNumber_Add(v, w)
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PyObject *v, *w;
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{
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BINOP("__add__", "__radd__", PyNumber_Add);
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if (v->ob_type->tp_as_sequence != NULL)
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return (*v->ob_type->tp_as_sequence->sq_concat)(v, w);
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else if (v->ob_type->tp_as_number != NULL) {
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|
PyObject *x;
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if (PyNumber_Coerce(&v, &w) != 0)
|
|
return NULL;
|
|
x = (*v->ob_type->tp_as_number->nb_add)(v, w);
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Py_DECREF(v);
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Py_DECREF(w);
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|
return x;
|
|
}
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|
PyErr_SetString(PyExc_TypeError, "bad operand type(s) for +");
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return NULL;
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|
}
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PyObject *
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PyNumber_Subtract(v, w)
|
|
PyObject *v, *w;
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{
|
|
BINOP("__sub__", "__rsub__", PyNumber_Subtract);
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if (v->ob_type->tp_as_number != NULL) {
|
|
PyObject *x;
|
|
if (PyNumber_Coerce(&v, &w) != 0)
|
|
return NULL;
|
|
x = (*v->ob_type->tp_as_number->nb_subtract)(v, w);
|
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Py_DECREF(v);
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Py_DECREF(w);
|
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return x;
|
|
}
|
|
PyErr_SetString(PyExc_TypeError, "bad operand type(s) for -");
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|
return NULL;
|
|
}
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|
|
PyObject *
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PyNumber_Multiply(v, w)
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PyObject *v, *w;
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{
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|
PyTypeObject *tp;
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tp = v->ob_type;
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BINOP("__mul__", "__rmul__", PyNumber_Multiply);
|
|
if (tp->tp_as_number != NULL &&
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w->ob_type->tp_as_sequence != NULL &&
|
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!PyInstance_Check(v)) {
|
|
/* number*sequence -- swap v and w */
|
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PyObject *tmp = v;
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|
v = w;
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|
w = tmp;
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tp = v->ob_type;
|
|
}
|
|
if (tp->tp_as_number != NULL) {
|
|
PyObject *x;
|
|
if (PyInstance_Check(v)) {
|
|
/* Instances of user-defined classes get their
|
|
other argument uncoerced, so they may
|
|
implement sequence*number as well as
|
|
number*number. */
|
|
Py_INCREF(v);
|
|
Py_INCREF(w);
|
|
}
|
|
else if (PyNumber_Coerce(&v, &w) != 0)
|
|
return NULL;
|
|
x = (*v->ob_type->tp_as_number->nb_multiply)(v, w);
|
|
Py_DECREF(v);
|
|
Py_DECREF(w);
|
|
return x;
|
|
}
|
|
if (tp->tp_as_sequence != NULL) {
|
|
if (!PyInt_Check(w)) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"can't multiply sequence with non-int");
|
|
return NULL;
|
|
}
|
|
return (*tp->tp_as_sequence->sq_repeat)
|
|
(v, (int)PyInt_AsLong(w));
|
|
}
|
|
PyErr_SetString(PyExc_TypeError, "bad operand type(s) for *");
|
|
return NULL;
|
|
}
|
|
|
|
PyObject *
|
|
PyNumber_Divide(v, w)
|
|
PyObject *v, *w;
|
|
{
|
|
BINOP("__div__", "__rdiv__", PyNumber_Divide);
|
|
if (v->ob_type->tp_as_number != NULL) {
|
|
PyObject *x;
|
|
if (PyNumber_Coerce(&v, &w) != 0)
|
|
return NULL;
|
|
x = (*v->ob_type->tp_as_number->nb_divide)(v, w);
|
|
Py_DECREF(v);
|
|
Py_DECREF(w);
|
|
return x;
|
|
}
|
|
PyErr_SetString(PyExc_TypeError, "bad operand type(s) for /");
|
|
return NULL;
|
|
}
|
|
|
|
PyObject *
|
|
PyNumber_Remainder(v, w)
|
|
PyObject *v, *w;
|
|
{
|
|
if (PyString_Check(v)) {
|
|
return PyString_Format(v, w);
|
|
}
|
|
BINOP("__mod__", "__rmod__", PyNumber_Remainder);
|
|
if (v->ob_type->tp_as_number != NULL) {
|
|
PyObject *x;
|
|
if (PyNumber_Coerce(&v, &w) != 0)
|
|
return NULL;
|
|
x = (*v->ob_type->tp_as_number->nb_remainder)(v, w);
|
|
Py_DECREF(v);
|
|
Py_DECREF(w);
|
|
return x;
|
|
}
|
|
PyErr_SetString(PyExc_TypeError, "bad operand type(s) for %");
|
|
return NULL;
|
|
}
|
|
|
|
PyObject *
|
|
PyNumber_Divmod(v, w)
|
|
PyObject *v, *w;
|
|
{
|
|
PyObject *res;
|
|
|
|
if (PyInstance_Check(v) || PyInstance_Check(w))
|
|
return PyInstance_DoBinOp(v, w, "__divmod__", "__rdivmod__",
|
|
PyNumber_Divmod);
|
|
if (v->ob_type->tp_as_number == NULL ||
|
|
w->ob_type->tp_as_number == NULL) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"divmod() requires numeric or class instance arguments");
|
|
return NULL;
|
|
}
|
|
if (PyNumber_Coerce(&v, &w) != 0)
|
|
return NULL;
|
|
res = (*v->ob_type->tp_as_number->nb_divmod)(v, w);
|
|
Py_DECREF(v);
|
|
Py_DECREF(w);
|
|
return res;
|
|
}
|
|
|
|
|
|
static PyObject *
|
|
do_pow(v, w)
|
|
PyObject *v, *w;
|
|
{
|
|
PyObject *res;
|
|
if (PyInstance_Check(v) || PyInstance_Check(w))
|
|
return PyInstance_DoBinOp(v, w, "__pow__", "__rpow__", do_pow);
|
|
if (v->ob_type->tp_as_number == NULL ||
|
|
w->ob_type->tp_as_number == NULL) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"pow() requires numeric arguments");
|
|
return NULL;
|
|
}
|
|
if (PyFloat_Check(w) && PyFloat_AsDouble(v) < 0.0) {
|
|
if (!PyErr_Occurred())
|
|
PyErr_SetString(PyExc_ValueError,
|
|
"negative number to float power");
|
|
return NULL;
|
|
}
|
|
if (PyNumber_Coerce(&v, &w) != 0)
|
|
return NULL;
|
|
res = (*v->ob_type->tp_as_number->nb_power)(v, w, Py_None);
|
|
Py_DECREF(v);
|
|
Py_DECREF(w);
|
|
return res;
|
|
}
|
|
|
|
PyObject *
|
|
PyNumber_Power(v,w,z)
|
|
PyObject *v, *w, *z;
|
|
{
|
|
PyObject *res;
|
|
PyObject *v1, *z1, *w2, *z2;
|
|
|
|
if (z == Py_None)
|
|
return do_pow(v, w);
|
|
/* XXX The ternary version doesn't do class instance coercions */
|
|
if (PyInstance_Check(v))
|
|
return v->ob_type->tp_as_number->nb_power(v, w, z);
|
|
if (v->ob_type->tp_as_number == NULL ||
|
|
z->ob_type->tp_as_number == NULL ||
|
|
w->ob_type->tp_as_number == NULL) {
|
|
PyErr_SetString(PyExc_TypeError, "pow() requires numeric arguments");
|
|
return NULL;
|
|
}
|
|
if (PyNumber_Coerce(&v, &w) != 0)
|
|
return NULL;
|
|
res = NULL;
|
|
v1 = v;
|
|
z1 = z;
|
|
if (PyNumber_Coerce(&v1, &z1) != 0)
|
|
goto error2;
|
|
w2 = w;
|
|
z2 = z1;
|
|
if (PyNumber_Coerce(&w2, &z2) != 0)
|
|
goto error1;
|
|
res = (*v1->ob_type->tp_as_number->nb_power)(v1, w2, z2);
|
|
Py_DECREF(w2);
|
|
Py_DECREF(z2);
|
|
error1:
|
|
Py_DECREF(v1);
|
|
Py_DECREF(z1);
|
|
error2:
|
|
Py_DECREF(v);
|
|
Py_DECREF(w);
|
|
return res;
|
|
}
|
|
|
|
|
|
PyObject *
|
|
PyNumber_Negative(v)
|
|
PyObject *v;
|
|
{
|
|
if (v->ob_type->tp_as_number != NULL)
|
|
return (*v->ob_type->tp_as_number->nb_negative)(v);
|
|
PyErr_SetString(PyExc_TypeError, "bad operand type(s) for unary -");
|
|
return NULL;
|
|
}
|
|
|
|
PyObject *
|
|
PyNumber_Positive(v)
|
|
PyObject *v;
|
|
{
|
|
if (v->ob_type->tp_as_number != NULL)
|
|
return (*v->ob_type->tp_as_number->nb_positive)(v);
|
|
PyErr_SetString(PyExc_TypeError, "bad operand type(s) for unary +");
|
|
return NULL;
|
|
}
|
|
|
|
PyObject *
|
|
PyNumber_Invert(v)
|
|
PyObject *v;
|
|
{
|
|
PyObject * (*f) Py_FPROTO((PyObject *));
|
|
if (v->ob_type->tp_as_number != NULL &&
|
|
(f = v->ob_type->tp_as_number->nb_invert) != NULL)
|
|
return (*f)(v);
|
|
PyErr_SetString(PyExc_TypeError, "bad operand type(s) for unary ~");
|
|
return NULL;
|
|
}
|
|
|
|
PyObject *
|
|
PyNumber_Absolute(o)
|
|
PyObject *o;
|
|
{
|
|
PyNumberMethods *m;
|
|
|
|
if(! o) return Py_ReturnNullError();
|
|
if((m=o->ob_type->tp_as_number) && m->nb_absolute)
|
|
return m->nb_absolute(o);
|
|
|
|
return Py_ReturnMethodError("__abs__");
|
|
}
|
|
|
|
PyObject *
|
|
PyNumber_Int(o)
|
|
PyObject *o;
|
|
{
|
|
PyNumberMethods *m;
|
|
|
|
if(! o) return Py_ReturnNullError();
|
|
if((m=o->ob_type->tp_as_number) && m->nb_int)
|
|
return m->nb_int(o);
|
|
|
|
return Py_ReturnMethodError("__int__");
|
|
}
|
|
|
|
PyObject *
|
|
PyNumber_Long(o)
|
|
PyObject *o;
|
|
{
|
|
PyNumberMethods *m;
|
|
|
|
if(! o) return Py_ReturnNullError();
|
|
if((m=o->ob_type->tp_as_number) && m->nb_long)
|
|
return m->nb_long(o);
|
|
|
|
return Py_ReturnMethodError("__long__");
|
|
}
|
|
|
|
PyObject *
|
|
PyNumber_Float(o)
|
|
PyObject *o;
|
|
{
|
|
PyNumberMethods *m;
|
|
|
|
if(! o) return Py_ReturnNullError();
|
|
if((m=o->ob_type->tp_as_number) && m->nb_float)
|
|
return m->nb_float(o);
|
|
|
|
return Py_ReturnMethodError("__float__");
|
|
}
|
|
|
|
|
|
int
|
|
PySequence_Check(o)
|
|
PyObject *o;
|
|
{
|
|
return o && o->ob_type->tp_as_sequence;
|
|
}
|
|
|
|
int
|
|
PySequence_Length(s)
|
|
PyObject *s;
|
|
{
|
|
PySequenceMethods *m;
|
|
|
|
if(! s) return Py_ReturnNullError(),-1;
|
|
|
|
if((m=s->ob_type->tp_as_sequence) && m->sq_length)
|
|
return m->sq_length(s);
|
|
|
|
Py_ReturnMethodError("__len__");
|
|
return -1;
|
|
}
|
|
|
|
PyObject *
|
|
PySequence_Concat(s, o)
|
|
PyObject *s;
|
|
PyObject *o;
|
|
{
|
|
PySequenceMethods *m;
|
|
|
|
if(! s || ! o) return Py_ReturnNullError();
|
|
|
|
if((m=s->ob_type->tp_as_sequence) && m->sq_concat)
|
|
return m->sq_concat(s,o);
|
|
|
|
return Py_ReturnMethodError("__concat__");
|
|
}
|
|
|
|
PyObject *
|
|
PySequence_Repeat(o, count)
|
|
PyObject *o;
|
|
int count;
|
|
{
|
|
PySequenceMethods *m;
|
|
|
|
if(! o) return Py_ReturnNullError();
|
|
|
|
if((m=o->ob_type->tp_as_sequence) && m->sq_repeat)
|
|
return m->sq_repeat(o,count);
|
|
|
|
return Py_ReturnMethodError("__repeat__");
|
|
}
|
|
|
|
PyObject *
|
|
PySequence_GetItem(s, i)
|
|
PyObject *s;
|
|
int i;
|
|
{
|
|
PySequenceMethods *m;
|
|
int l;
|
|
|
|
if(! s) return Py_ReturnNullError();
|
|
|
|
if(! ((m=s->ob_type->tp_as_sequence) && m->sq_item))
|
|
return Py_ReturnMethodError("__getitem__");
|
|
|
|
if(i < 0)
|
|
{
|
|
if(! m->sq_length || 0 > (l=m->sq_length(s))) return NULL;
|
|
i += l;
|
|
}
|
|
|
|
return m->sq_item(s,i);
|
|
}
|
|
|
|
PyObject *
|
|
PySequence_GetSlice(s, i1, i2)
|
|
PyObject *s;
|
|
int i1;
|
|
int i2;
|
|
{
|
|
PySequenceMethods *m;
|
|
int l;
|
|
|
|
if(! s) return Py_ReturnNullError();
|
|
|
|
if(! ((m=s->ob_type->tp_as_sequence) && m->sq_slice))
|
|
return Py_ReturnMethodError("__getslice__");
|
|
|
|
if(i1 < 0 || i2 < 0)
|
|
{
|
|
|
|
if(! m->sq_length || 0 > (l=m->sq_length(s))) return NULL;
|
|
|
|
if(i1 < 0) i1 += l;
|
|
if(i2 < 0) i2 += l;
|
|
}
|
|
|
|
return m->sq_slice(s,i1,i2);
|
|
}
|
|
|
|
int
|
|
PySequence_SetItem(s, i, o)
|
|
PyObject *s;
|
|
int i;
|
|
PyObject *o;
|
|
{
|
|
PySequenceMethods *m;
|
|
int l;
|
|
if(! s) return Py_ReturnNullError(),-1;
|
|
|
|
if(! ((m=s->ob_type->tp_as_sequence) && m->sq_length && m->sq_ass_item))
|
|
return Py_ReturnMethodError("__setitem__"),-1;
|
|
|
|
if(i < 0)
|
|
{
|
|
if(0 > (l=m->sq_length(s))) return -1;
|
|
i += l;
|
|
}
|
|
|
|
return m->sq_ass_item(s,i,o);
|
|
}
|
|
|
|
int
|
|
PySequence_DelItem(s, i)
|
|
PyObject *s;
|
|
int i;
|
|
{
|
|
PySequenceMethods *m;
|
|
int l;
|
|
if(! s) return Py_ReturnNullError(),-1;
|
|
|
|
if(! ((m=s->ob_type->tp_as_sequence) && m->sq_length && m->sq_ass_item))
|
|
return Py_ReturnMethodError("__delitem__"),-1;
|
|
|
|
if(i < 0)
|
|
{
|
|
if(0 > (l=m->sq_length(s))) return -1;
|
|
i += l;
|
|
}
|
|
|
|
return m->sq_ass_item(s,i,(PyObject*)NULL);
|
|
}
|
|
|
|
int
|
|
PySequence_SetSlice(s, i1, i2, o)
|
|
PyObject *s;
|
|
int i1;
|
|
int i2;
|
|
PyObject *o;
|
|
{
|
|
PySequenceMethods *m;
|
|
int l;
|
|
|
|
if(! s) return Py_ReturnNullError(),-1;
|
|
|
|
if(! ((m=s->ob_type->tp_as_sequence) && m->sq_length && m->sq_ass_slice))
|
|
return Py_ReturnMethodError("__setslice__"),-1;
|
|
|
|
if(0 > (l=m->sq_length(s))) return -1;
|
|
|
|
if(i1 < 0) i1 += l;
|
|
if(i2 < 0) i2 += l;
|
|
|
|
return m->sq_ass_slice(s,i1,i2,o);
|
|
}
|
|
|
|
int
|
|
PySequence_DelSlice(s, i1, i2)
|
|
PyObject *s;
|
|
int i1;
|
|
int i2;
|
|
{
|
|
PySequenceMethods *m;
|
|
int l;
|
|
|
|
if(! s) return Py_ReturnNullError(),-1;
|
|
|
|
if(! ((m=s->ob_type->tp_as_sequence) && m->sq_length && m->sq_ass_slice))
|
|
return Py_ReturnMethodError("__delslice__"),-1;
|
|
|
|
if(0 > (l=m->sq_length(s))) return -1;
|
|
|
|
if(i1 < 0) i1 += l;
|
|
if(i2 < 0) i2 += l;
|
|
|
|
return m->sq_ass_slice(s,i1,i2,(PyObject*)NULL);
|
|
}
|
|
|
|
PyObject *
|
|
PySequence_Tuple(s)
|
|
PyObject *s;
|
|
{
|
|
int l, i;
|
|
PyObject *t, *item;
|
|
|
|
if(! s) return Py_ReturnNullError();
|
|
|
|
Py_TRY((l=PySequence_Length(s)) != -1);
|
|
Py_TRY(t=PyTuple_New(l));
|
|
|
|
for(i=0; i < l; i++)
|
|
{
|
|
if(!(item=PySequence_GetItem(s,i)) ||
|
|
PyTuple_SetItem(t,i,item) == -1)
|
|
{
|
|
Py_DECREF(t);
|
|
return NULL;
|
|
}
|
|
}
|
|
return t;
|
|
}
|
|
|
|
PyObject *
|
|
PySequence_List(s)
|
|
PyObject *s;
|
|
{
|
|
int l, i;
|
|
PyObject *t, *item;
|
|
|
|
if(! s) return Py_ReturnNullError();
|
|
|
|
Py_TRY((l=PySequence_Length(s)) != -1);
|
|
Py_TRY(t=PyList_New(l));
|
|
|
|
for(i=0; i < l; i++)
|
|
{
|
|
if(!(item=PySequence_GetItem(s,i)) ||
|
|
PyList_SetItem(t,i,item) == -1)
|
|
{
|
|
Py_DECREF(t);
|
|
return NULL;
|
|
}
|
|
}
|
|
return t;
|
|
}
|
|
|
|
int
|
|
PySequence_Count(s, o)
|
|
PyObject *s;
|
|
PyObject *o;
|
|
{
|
|
int l, i, n=0, not_equal, err;
|
|
PyObject *item;
|
|
|
|
if(! s || ! o) return Py_ReturnNullError(), -1;
|
|
if((l=PySequence_Length(s)) == -1) return -1;
|
|
|
|
for(i=0; i < l; i++)
|
|
{
|
|
if((item=PySequence_GetItem(s,i)) == NULL) return -1;
|
|
err=PyObject_Cmp(item,o,¬_equal) == -1;
|
|
Py_DECREF(item);
|
|
if(err) return -1;
|
|
n += ! not_equal;
|
|
}
|
|
return n;
|
|
}
|
|
|
|
int
|
|
PySequence_In(s, o)
|
|
PyObject *s;
|
|
PyObject *o;
|
|
{
|
|
int l, i, not_equal, err;
|
|
PyObject *item;
|
|
|
|
if(! o || ! s) return Py_ReturnNullError(), -1;
|
|
if((l=PySequence_Length(s)) == -1) return -1;
|
|
|
|
for(i=0; i < l; i++)
|
|
{
|
|
if((item=PySequence_GetItem(s,i)) == NULL) return -1;
|
|
err=PyObject_Cmp(item,o,¬_equal) == -1;
|
|
Py_DECREF(item);
|
|
if(err) return -1;
|
|
if(! not_equal) return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
PySequence_Index(s, o)
|
|
PyObject *s;
|
|
PyObject *o;
|
|
{
|
|
int l, i, not_equal, err;
|
|
PyObject *item;
|
|
|
|
if(! s || ! o) return Py_ReturnNullError(), -1;
|
|
if((l=PySequence_Length(s)) == -1) return -1;
|
|
|
|
for(i=0; i < l; i++)
|
|
{
|
|
if((item=PySequence_GetItem(s,i)) == NULL) return -1;
|
|
err=PyObject_Cmp(item,o,¬_equal) == -1;
|
|
Py_DECREF(item);
|
|
if(err) return -1;
|
|
if(! not_equal) return i;
|
|
}
|
|
PyErr_SetString(PyExc_ValueError, "list.index(x): x not in list");
|
|
return -1;
|
|
}
|
|
|
|
int
|
|
PyMapping_Check(o)
|
|
PyObject *o;
|
|
{
|
|
return o && o->ob_type->tp_as_mapping;
|
|
}
|
|
|
|
int
|
|
PyMapping_Length(s)
|
|
PyObject *s;
|
|
{
|
|
PyMappingMethods *m;
|
|
|
|
if(! s) return Py_ReturnNullError(),-1;
|
|
|
|
if((m=s->ob_type->tp_as_mapping) && m->mp_length)
|
|
return m->mp_length(s);
|
|
|
|
Py_ReturnMethodError("__len__");
|
|
return -1;
|
|
}
|
|
|
|
int
|
|
PyMapping_HasKeyString(o, key)
|
|
PyObject *o;
|
|
char *key;
|
|
{
|
|
PyObject *v;
|
|
|
|
v=PyMapping_GetItemString(o,key);
|
|
if(v) {
|
|
Py_DECREF(v);
|
|
return 1;
|
|
}
|
|
PyErr_Clear();
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
PyMapping_HasKey(o, key)
|
|
PyObject *o;
|
|
PyObject *key;
|
|
{
|
|
PyObject *v;
|
|
|
|
v=PyObject_GetItem(o,key);
|
|
if(v) {
|
|
Py_DECREF(v);
|
|
return 1;
|
|
}
|
|
PyErr_Clear();
|
|
return 0;
|
|
}
|
|
|
|
PyObject *
|
|
PyObject_CallObject(o, a)
|
|
PyObject *o, *a;
|
|
{
|
|
PyObject *r;
|
|
|
|
if(a) return PyEval_CallObject(o,a);
|
|
|
|
if(! (a=PyTuple_New(0)))
|
|
return NULL;
|
|
r=PyEval_CallObject(o,a);
|
|
Py_DECREF(a);
|
|
return r;
|
|
}
|
|
|
|
PyObject *
|
|
#ifdef HAVE_STDARG_PROTOTYPES
|
|
/* VARARGS 2 */
|
|
PyObject_CallFunction(PyObject *PyCallable_Check, char *format, ...)
|
|
#else
|
|
/* VARARGS */
|
|
PyObject_CallFunction(va_alist) va_dcl
|
|
#endif
|
|
{
|
|
va_list va;
|
|
PyObject *args, *retval;
|
|
#ifdef HAVE_STDARG_PROTOTYPES
|
|
va_start(va, format);
|
|
#else
|
|
PyObject *PyCallable_Check;
|
|
char *format;
|
|
va_start(va);
|
|
PyCallable_Check = va_arg(va, PyObject *);
|
|
format = va_arg(va, char *);
|
|
#endif
|
|
|
|
if( ! PyCallable_Check)
|
|
{
|
|
va_end(va);
|
|
return Py_ReturnNullError();
|
|
}
|
|
|
|
if(format)
|
|
args = Py_VaBuildValue(format, va);
|
|
else
|
|
args = PyTuple_New(0);
|
|
|
|
va_end(va);
|
|
if(! args) return NULL;
|
|
|
|
if(! PyTuple_Check(args))
|
|
{
|
|
PyObject *a;
|
|
|
|
Py_TRY(a=PyTuple_New(1));
|
|
Py_TRY(PyTuple_SetItem(a,0,args) != -1);
|
|
args=a;
|
|
}
|
|
retval = PyObject_CallObject(PyCallable_Check,args);
|
|
Py_DECREF(args);
|
|
return retval;
|
|
}
|
|
|
|
PyObject *
|
|
#ifdef HAVE_STDARG_PROTOTYPES
|
|
/* VARARGS 2 */
|
|
PyObject_CallMethod(PyObject *o, char *name, char *format, ...)
|
|
#else
|
|
/* VARARGS */
|
|
PyObject_CallMethod(va_alist) va_dcl
|
|
#endif
|
|
{
|
|
va_list va;
|
|
PyObject *args, *func=0, *retval;
|
|
#ifdef HAVE_STDARG_PROTOTYPES
|
|
va_start(va, format);
|
|
#else
|
|
PyObject *o;
|
|
char *name;
|
|
char *format;
|
|
va_start(va);
|
|
o = va_arg(va, PyObject *);
|
|
name = va_arg(va, char *);
|
|
format = va_arg(va, char *);
|
|
#endif
|
|
|
|
if( ! o || ! name)
|
|
{
|
|
va_end(va);
|
|
return Py_ReturnNullError();
|
|
}
|
|
|
|
func=PyObject_GetAttrString(o,name);
|
|
if(! func)
|
|
{
|
|
va_end(va);
|
|
PyErr_SetString(PyExc_AttributeError,name);
|
|
return 0;
|
|
}
|
|
|
|
if(! (PyCallable_Check(func)))
|
|
{
|
|
va_end(va);
|
|
PyErr_SetString(PyExc_TypeError,"call of non-callable attribute");
|
|
return 0;
|
|
}
|
|
|
|
if(format && *format)
|
|
args = Py_VaBuildValue(format, va);
|
|
else
|
|
args = PyTuple_New(0);
|
|
|
|
va_end(va);
|
|
|
|
if(! args) return NULL;
|
|
|
|
if(! PyTuple_Check(args))
|
|
{
|
|
PyObject *a;
|
|
|
|
Py_TRY(a=PyTuple_New(1));
|
|
Py_TRY(PyTuple_SetItem(a,0,args) != -1);
|
|
args=a;
|
|
}
|
|
|
|
retval = PyObject_CallObject(func,args);
|
|
Py_DECREF(args);
|
|
Py_DECREF(func);
|
|
return retval;
|
|
}
|
|
|
|
PyObject *
|
|
PyMapping_GetItemString(o, key)
|
|
PyObject *o;
|
|
char *key;
|
|
{
|
|
PyObject *okey, *r;
|
|
|
|
if( ! key) return Py_ReturnNullError();
|
|
Py_TRY(okey=PyString_FromString(key));
|
|
r = PyObject_GetItem(o,okey);
|
|
Py_DECREF(okey);
|
|
return r;
|
|
}
|
|
|
|
int
|
|
PyMapping_SetItemString(o, key, value)
|
|
PyObject *o;
|
|
char *key;
|
|
PyObject *value;
|
|
{
|
|
PyObject *okey;
|
|
int r;
|
|
|
|
if( ! key) return Py_ReturnNullError(),-1;
|
|
if (!(okey=PyString_FromString(key))) return -1;
|
|
r = PyObject_SetItem(o,okey,value);
|
|
Py_DECREF(okey);
|
|
return r;
|
|
}
|