1/*
2 * Copyright (C) 2011 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef SinglyLinkedList_h
27#define SinglyLinkedList_h
28
29namespace WTF {
30
31template <typename Node> class SinglyLinkedList {
32public:
33    SinglyLinkedList();
34
35    bool isEmpty();
36
37    void push(Node*);
38    Node* pop();
39
40private:
41    Node* m_head;
42};
43
44template <typename Node> inline SinglyLinkedList<Node>::SinglyLinkedList()
45    : m_head(0)
46{
47}
48
49template <typename Node> inline bool SinglyLinkedList<Node>::isEmpty()
50{
51    return !m_head;
52}
53
54template <typename Node> inline void SinglyLinkedList<Node>::push(Node* node)
55{
56    ASSERT(node);
57    node->setNext(m_head);
58    m_head = node;
59}
60
61template <typename Node> inline Node* SinglyLinkedList<Node>::pop()
62{
63    Node* tmp = m_head;
64    m_head = m_head->next();
65    return tmp;
66}
67
68}
69
70using WTF::SinglyLinkedList;
71
72#endif
73