/parser/html/nsHtml5ArrayCopy.h

 1/*
 2 * Copyright (c) 2008 Mozilla Foundation
 3 *
 4 * Permission is hereby granted, free of charge, to any person obtaining a
 5 * copy of this software and associated documentation files (the "Software"),
 6 * to deal in the Software without restriction, including without limitation
 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 8 * and/or sell copies of the Software, and to permit persons to whom the
 9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
19 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
20 * DEALINGS IN THE SOFTWARE.
21 */
22
23#ifndef nsHtml5ArrayCopy_h__
24#define nsHtml5ArrayCopy_h__
25
26#include "prtypes.h"
27
28class nsString;
29class nsHtml5StackNode;
30class nsHtml5AttributeName;
31
32// Unfortunately, these don't work as template functions because the arguments
33// would need coercion from a template class, which complicates things.
34class nsHtml5ArrayCopy {
35  public:
36
37    static inline void
38    arraycopy(PRUnichar* source, PRInt32 sourceOffset, PRUnichar* target, PRInt32 targetOffset, PRInt32 length)
39    {
40      memcpy(&(target[targetOffset]), &(source[sourceOffset]), length * sizeof(PRUnichar));
41    }
42
43    static inline void
44    arraycopy(PRUnichar* source, PRUnichar* target, PRInt32 length)
45    {
46      memcpy(target, source, length * sizeof(PRUnichar));
47    }
48
49    static inline void
50    arraycopy(nsString** source, nsString** target, PRInt32 length)
51    {
52      memcpy(target, source, length * sizeof(nsString*));
53    }
54
55    static inline void
56    arraycopy(nsHtml5AttributeName** source, nsHtml5AttributeName** target, PRInt32 length)
57    {
58      memcpy(target, source, length * sizeof(nsHtml5AttributeName*));
59    }
60
61    static inline void
62    arraycopy(nsHtml5StackNode** source, nsHtml5StackNode** target, PRInt32 length)
63    {
64      memcpy(target, source, length * sizeof(nsHtml5StackNode*));
65    }
66
67    static inline void
68    arraycopy(nsHtml5StackNode** arr, PRInt32 sourceOffset, PRInt32 targetOffset, PRInt32 length)
69    {
70      memmove(&(arr[targetOffset]), &(arr[sourceOffset]), length * sizeof(nsHtml5StackNode*));
71    }
72};
73#endif // nsHtml5ArrayCopy_h__