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/********************************************
copyright 1999 McMillan Enterprises, Inc.
www.mcmillan-inc.com
*********************************************/
#if !defined(PWOMSEQUENCE_H_INCLUDED_)
#define PWOMSEQUENCE_H_INCLUDED_
#if _MSC_VER >= 1000
#pragma once
#endif // _MSC_VER >= 1000
#include "PWOBase.h"
#include "PWOSequence.h"
class PWOList;
class PWOListMmbr : public PWOBase
{
PWOList& _parent;
int _ndx;
public:
PWOListMmbr(PyObject* obj, PWOList& parent, int ndx);
virtual ~PWOListMmbr() {};
PWOListMmbr& operator=(const PWOBase& other);
};
class PWOList : public PWOSequence
{
public:
PWOList(int size=0) : PWOSequence (PyList_New(size)) { LoseRef(_obj); }
PWOList(const PWOList& other) : PWOSequence(other) {};
PWOList(PyObject* obj) : PWOSequence(obj) {
_violentTypeCheck();
};
virtual ~PWOList() {};
virtual PWOList& operator=(const PWOList& other) {
GrabRef(other);
return *this;
};
PWOList& operator=(const PWOBase& other) {
GrabRef(other);
_violentTypeCheck();
return *this;
};
virtual void _violentTypeCheck() {
if (!PyList_Check(_obj)) { //should probably check the sequence methods for non-0 setitem
GrabRef(0);
Fail(PyExc_TypeError, "Not a mutable sequence");
}
};
//PySequence_DelItem ##lists
bool delItem(int i) {
int rslt = PySequence_DelItem(_obj, i);
if (rslt == -1)
Fail(PyExc_RuntimeError, "cannot delete item");
return true;
};
//PySequence_DelSlice ##lists
bool delSlice(int lo, int hi) {
int rslt = PySequence_DelSlice(_obj, lo, hi);
if (rslt == -1)
Fail(PyExc_RuntimeError, "cannot delete slice");
return true;
};
//PySequence_GetItem ##lists - return PWOListMmbr (mutable) otherwise just a PWOBase
PWOListMmbr operator [] (int i) { // can't be virtual
//PyObject* o = PySequence_GetItem(_obj, i); assumes item is valid
PyObject* o = PyList_GetItem(_obj, i); // get a "borrowed" refcount
//Py_XINCREF(o);
//if (o == 0)
// Fail(PyExc_IndexError, "index out of range");
return PWOListMmbr(o, *this, i); // this increfs
};
//PySequence_SetItem ##Lists
void setItem(int ndx, PWOBase& val) {
//int rslt = PySequence_SetItem(_obj, ndx, val); - assumes old item is valid
int rslt = PyList_SetItem(_obj, ndx, val);
val.disOwn(); //when using PyList_SetItem, he steals my reference
if (rslt==-1)
Fail(PyExc_IndexError, "Index out of range");
};
//PySequence_SetSlice ##Lists
void setSlice(int lo, int hi, const PWOSequence& slice) {
int rslt = PySequence_SetSlice(_obj, lo, hi, slice);
if (rslt==-1)
Fail(PyExc_RuntimeError, "Error setting slice");
};
//PyList_Append
PWOList& append(const PWOBase& other) {
int rslt = PyList_Append(_obj, other);
if (rslt==-1) {
PyErr_Clear(); //Python sets one
Fail(PyExc_RuntimeError, "Error appending");
};
return *this;
};
//PyList_AsTuple
// problem with this is it's created on the heap
//virtual PWOTuple& asTuple() const {
// PyObject* rslt = PyList_AsTuple(_obj);
// PWOTuple rtrn = new PWOTuple(rslt);
// Py_XDECREF(rslt); //AsTuple set refcnt to 1, PWOTuple(rslt) increffed
// return *rtrn;
//};
//PyList_GetItem - inherited OK
//PyList_GetSlice - inherited OK
//PyList_Insert
PWOList& insert(int ndx, PWOBase& other) {
int rslt = PyList_Insert(_obj, ndx, other);
if (rslt==-1) {
PyErr_Clear(); //Python sets one
Fail(PyExc_RuntimeError, "Error inserting");
};
return *this;
};
//PyList_New
//PyList_Reverse
PWOList& reverse() {
int rslt = PyList_Reverse(_obj);
if (rslt==-1) {
PyErr_Clear(); //Python sets one
Fail(PyExc_RuntimeError, "Error reversing");
};
return *this; //HA HA - Guido can't stop me!!!
};
//PyList_SetItem - using abstract
//PyList_SetSlice - using abstract
//PyList_Size - inherited OK
//PyList_Sort
PWOList& sort() {
int rslt = PyList_Sort(_obj);
if (rslt==-1) {
PyErr_Clear(); //Python sets one
Fail(PyExc_RuntimeError, "Error sorting");
};
return *this; //HA HA - Guido can't stop me!!!
};
};
#endif // PWOMSEQUENCE_H_INCLUDED_
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