1/*
2 * Copyright (C) 2008 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. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef URLHash_h
27#define URLHash_h
28
29#include <wtf/URL.h>
30#include <wtf/text/StringHash.h>
31#include <wtf/text/WTFString.h>
32
33namespace WTF {
34
35struct URLHash {
36 static unsigned hash(const URL& key)
37 {
38 return key.string().impl()->hash();
39 }
40
41 static bool equal(const URL& a, const URL& b)
42 {
43 return StringHash::equal(a.string(), b.string());
44 }
45
46 static const bool safeToCompareToEmptyOrDeleted = false;
47};
48
49// URLHash is the default hash for String
50template<> struct DefaultHash<URL> {
51 using Hash = URLHash;
52};
53
54template<> struct HashTraits<URL> : SimpleClassHashTraits<URL> { };
55
56} // namespace WTF
57
58#endif // URLHash_h
59