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/*
* This file is part of the API Extractor project.
*
* Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Copyright (C) 2002-2005 Roberto Raggi <roberto@kdevelop.org>
*
* Contact: PySide team <contact@pyside.org>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
*/
#ifndef FASTLIST_H
#define FASTLIST_H
#include "smallobject.h"
template <typename Tp>
struct ListNode {
Tp element;
int index;
mutable const ListNode<Tp> *next;
static ListNode *create(const Tp &element, pool *p) {
ListNode<Tp> *node = new(p->allocate(sizeof(ListNode), strideof(ListNode))) ListNode();
node->element = element;
node->index = 0;
node->next = node;
return node;
}
static ListNode *create(const ListNode *n1, const Tp &element, pool *p) {
ListNode<Tp> *n2 = ListNode::create(element, p);
n2->index = n1->index + 1;
n2->next = n1->next;
n1->next = n2;
return n2;
}
inline ListNode<Tp>() { }
inline const ListNode<Tp> *at(int index) const {
const ListNode<Tp> *node = this;
while (index != node->index)
node = node->next;
return node;
}
inline bool hasNext() const {
return index < next->index;
}
inline int count() const {
return 1 + toBack()->index;
}
inline const ListNode<Tp> *toFront() const {
return toBack()->next;
}
inline const ListNode<Tp> *toBack() const {
const ListNode<Tp> *node = this;
while (node->hasNext())
node = node->next;
return node;
}
};
template <class Tp>
inline const ListNode<Tp> *snoc(const ListNode<Tp> *list,
const Tp &element, pool *p)
{
if (!list)
return ListNode<Tp>::create(element, p);
return ListNode<Tp>::create(list->toBack(), element, p);
}
#endif // FASTLIST_H
// kate: space-indent on; indent-width 2; replace-tabs on;
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