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 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
14 * its contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#ifndef SourceCode_h
30#define SourceCode_h
31
32#include "SourceProvider.h"
33#include <wtf/RefPtr.h>
34
35namespace JSC {
36
37 class SourceCode {
38 public:
39 SourceCode()
40 : m_provider(0)
41 , m_startChar(0)
42 , m_endChar(0)
43 , m_firstLine(0)
44 {
45 }
46
47 SourceCode(PassRefPtr<SourceProvider> provider, int firstLine = 1)
48 : m_provider(provider)
49 , m_startChar(0)
50 , m_endChar(m_provider->length())
51#ifdef QT_BUILD_SCRIPT_LIB
52 , m_firstLine(firstLine)
53#else
54 , m_firstLine(std::max(firstLine, 1))
55#endif
56 {
57 }
58
59 SourceCode(PassRefPtr<SourceProvider> provider, int start, int end, int firstLine)
60 : m_provider(provider)
61 , m_startChar(start)
62 , m_endChar(end)
63#ifdef QT_BUILD_SCRIPT_LIB
64 , m_firstLine(firstLine)
65#else
66 , m_firstLine(std::max(firstLine, 1))
67#endif
68 {
69 }
70
71 UString toString() const
72 {
73 if (!m_provider)
74 return UString();
75 return m_provider->getRange(start: m_startChar, end: m_endChar);
76 }
77
78 bool isNull() const { return !m_provider; }
79 SourceProvider* provider() const { return m_provider.get(); }
80 int firstLine() const { return m_firstLine; }
81 int startOffset() const { return m_startChar; }
82 int endOffset() const { return m_endChar; }
83 const UChar* data() const { return m_provider->data() + m_startChar; }
84 int length() const { return m_endChar - m_startChar; }
85
86 private:
87 RefPtr<SourceProvider> m_provider;
88 int m_startChar;
89 int m_endChar;
90 int m_firstLine;
91 };
92
93 inline SourceCode makeSource(const UString& source, const UString& url = UString(), int firstLine = 1)
94 {
95 return SourceCode(UStringSourceProvider::create(source, url), firstLine);
96 }
97
98} // namespace JSC
99
100#endif // SourceCode_h
101

source code of qtscript/src/3rdparty/javascriptcore/JavaScriptCore/parser/SourceCode.h