1 | /* |
2 | * Copyright (C) 2008, 2009 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 SourceProvider_h |
30 | #define SourceProvider_h |
31 | |
32 | #include "UString.h" |
33 | #include <wtf/RefCounted.h> |
34 | |
35 | namespace JSC { |
36 | |
37 | enum SourceBOMPresence { SourceHasNoBOMs, SourceCouldHaveBOMs }; |
38 | |
39 | class SourceProvider : public RefCounted<SourceProvider> { |
40 | public: |
41 | SourceProvider(const UString& url, SourceBOMPresence hasBOMs = SourceCouldHaveBOMs) |
42 | : m_url(url) |
43 | , m_hasBOMs(hasBOMs) |
44 | { |
45 | } |
46 | virtual ~SourceProvider() { } |
47 | |
48 | virtual UString getRange(int start, int end) const = 0; |
49 | virtual const UChar* data() const = 0; |
50 | virtual int length() const = 0; |
51 | |
52 | const UString& url() { return m_url; } |
53 | intptr_t asID() { return reinterpret_cast<intptr_t>(this); } |
54 | |
55 | SourceBOMPresence hasBOMs() const { return m_hasBOMs; } |
56 | |
57 | private: |
58 | UString m_url; |
59 | SourceBOMPresence m_hasBOMs; |
60 | }; |
61 | |
62 | class UStringSourceProvider : public SourceProvider { |
63 | public: |
64 | static PassRefPtr<UStringSourceProvider> create(const UString& source, const UString& url) |
65 | { |
66 | return adoptRef(p: new UStringSourceProvider(source, url)); |
67 | } |
68 | |
69 | UString getRange(int start, int end) const { return m_source.substr(pos: start, len: end - start); } |
70 | const UChar* data() const { return m_source.data(); } |
71 | int length() const { return m_source.size(); } |
72 | |
73 | #ifdef QT_BUILD_SCRIPT_LIB |
74 | protected: |
75 | #else |
76 | private: |
77 | #endif |
78 | UStringSourceProvider(const UString& source, const UString& url) |
79 | : SourceProvider(url) |
80 | , m_source(source) |
81 | { |
82 | } |
83 | |
84 | UString m_source; |
85 | }; |
86 | |
87 | } // namespace JSC |
88 | |
89 | #endif // SourceProvider_h |
90 | |