| /* |
| * Copyright (C) 2008, 2009, 2012 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of |
| * its contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY |
| * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef SourceProvider_h |
| #define SourceProvider_h |
| |
| #include "SourceProviderCache.h" |
| #include <wtf/PassOwnPtr.h> |
| #include <wtf/RefCounted.h> |
| #include <wtf/UnusedParam.h> |
| #include <wtf/text/TextPosition.h> |
| |
| namespace JSC { |
| |
| class SourceProvider : public RefCounted<SourceProvider> { |
| public: |
| static const intptr_t nullID = 1; |
| |
| SourceProvider(const String& url, const TextPosition& startPosition, SourceProviderCache* cache = 0) |
| : m_url(url) |
| , m_startPosition(startPosition) |
| , m_validated(false) |
| , m_cache(cache ? cache : new SourceProviderCache) |
| , m_cacheOwned(!cache) |
| { |
| } |
| |
| virtual ~SourceProvider() |
| { |
| if (m_cacheOwned) |
| delete m_cache; |
| } |
| |
| virtual const String& source() const = 0; |
| String getRange(int start, int end) const |
| { |
| return source().substringSharingImpl(start, end - start); |
| } |
| |
| const String& url() { return m_url; } |
| TextPosition startPosition() const { return m_startPosition; } |
| intptr_t asID() |
| { |
| ASSERT(this); |
| if (!this) // Be defensive in release mode. |
| return nullID; |
| return reinterpret_cast<intptr_t>(this); |
| } |
| |
| bool isValid() const { return m_validated; } |
| void setValid() { m_validated = true; } |
| |
| SourceProviderCache* cache() const { return m_cache; } |
| void notifyCacheSizeChanged(int delta) { if (!m_cacheOwned) cacheSizeChanged(delta); } |
| |
| private: |
| virtual void cacheSizeChanged(int delta) { UNUSED_PARAM(delta); } |
| |
| String m_url; |
| TextPosition m_startPosition; |
| bool m_validated; |
| SourceProviderCache* m_cache; |
| bool m_cacheOwned; |
| }; |
| |
| class StringSourceProvider : public SourceProvider { |
| public: |
| static PassRefPtr<StringSourceProvider> create(const String& source, const String& url, const TextPosition& startPosition = TextPosition::minimumPosition()) |
| { |
| return adoptRef(new StringSourceProvider(source, url, startPosition)); |
| } |
| |
| virtual const String& source() const OVERRIDE |
| { |
| return m_source; |
| } |
| |
| private: |
| StringSourceProvider(const String& source, const String& url, const TextPosition& startPosition) |
| : SourceProvider(url, startPosition) |
| , m_source(source) |
| { |
| } |
| |
| String m_source; |
| }; |
| |
| } // namespace JSC |
| |
| #endif // SourceProvider_h |