2009-06-25 Dimitri Glazkov <dglazkov@chromium.org>
[webbrowser.git] / JavaScriptCore / parser / SourceProvider.h
blob1c59eeda406b1223be80588a5db635085d7cd6f5
1 /*
2 * Copyright (C) 2008, 2009 Apple Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
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9 * notice, this list of conditions and the following disclaimer.
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14 * its contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
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19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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29 #ifndef SourceProvider_h
30 #define SourceProvider_h
32 #include "UString.h"
33 #include <wtf/RefCounted.h>
35 namespace JSC {
37 enum SourceBOMPresence { SourceHasNoBOMs, SourceCouldHaveBOMs };
39 class SourceProvider : public RefCounted<SourceProvider> {
40 public:
41 SourceProvider(const UString& url, SourceBOMPresence hasBOMs = SourceCouldHaveBOMs)
42 : m_url(url)
43 , m_hasBOMs(hasBOMs)
46 virtual ~SourceProvider() { }
48 virtual UString getRange(int start, int end) const = 0;
49 virtual const UChar* data() const = 0;
50 virtual int length() const = 0;
52 const UString& url() { return m_url; }
53 intptr_t asID() { return reinterpret_cast<intptr_t>(this); }
55 SourceBOMPresence hasBOMs() const { return m_hasBOMs; }
57 private:
58 UString m_url;
59 SourceBOMPresence m_hasBOMs;
62 class UStringSourceProvider : public SourceProvider {
63 public:
64 static PassRefPtr<UStringSourceProvider> create(const UString& source, const UString& url)
66 return adoptRef(new UStringSourceProvider(source, url));
69 UString getRange(int start, int end) const { return m_source.substr(start, end - start); }
70 const UChar* data() const { return m_source.data(); }
71 int length() const { return m_source.size(); }
73 private:
74 UStringSourceProvider(const UString& source, const UString& url)
75 : SourceProvider(url)
76 , m_source(source)
80 UString m_source;
83 } // namespace JSC
85 #endif // SourceProvider_h