1/*
2 * Copyright (C) 2012, 2016 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#pragma once
27
28#include <wtf/PrintStream.h>
29#include <wtf/text/CString.h>
30#include <wtf/text/WTFString.h>
31
32namespace WTF {
33
34class StringPrintStream : public PrintStream {
35public:
36 WTF_EXPORT_PRIVATE StringPrintStream();
37 WTF_EXPORT_PRIVATE virtual ~StringPrintStream();
38
39 WTF_EXPORT_PRIVATE void vprintf(const char* format, va_list) override WTF_ATTRIBUTE_PRINTF(2, 0);
40
41 size_t length() const { return m_next; }
42
43 WTF_EXPORT_PRIVATE CString toCString();
44 WTF_EXPORT_PRIVATE String toString();
45 WTF_EXPORT_PRIVATE String toStringWithLatin1Fallback();
46 WTF_EXPORT_PRIVATE void reset();
47
48private:
49 void increaseSize(size_t);
50
51 char* m_buffer;
52 size_t m_next;
53 size_t m_size;
54 char m_inlineBuffer[128];
55};
56
57// Stringify any type T that has a WTF::printInternal(PrintStream&, const T&)
58
59template<typename... Types>
60CString toCString(const Types&... values)
61{
62 StringPrintStream stream;
63 stream.print(values...);
64 return stream.toCString();
65}
66
67template<typename... Types>
68String toString(const Types&... values)
69{
70 StringPrintStream stream;
71 stream.print(values...);
72 return stream.toString();
73}
74
75} // namespace WTF
76
77using WTF::StringPrintStream;
78using WTF::toCString;
79using WTF::toString;
80