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/*
* Copyright (C) 2008, 2009, 2012, 2013 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 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 <wtf/RefCounted.h>
#include <wtf/text/TextPosition.h>
#include <wtf/text/WTFString.h>
namespace JSC {
class SourceProvider : public RefCounted<SourceProvider> {
public:
static const intptr_t nullID = 1;
JS_EXPORT_PRIVATE SourceProvider(const String& url, const TextPosition& startPosition);
JS_EXPORT_PRIVATE virtual ~SourceProvider();
virtual unsigned hash() const = 0;
virtual StringView source() const = 0;
StringView getRange(int start, int end) const
{
return source().substring(start, end - start);
}
const String& url() const { return m_url; }
const String& sourceURL() const { return m_sourceURLDirective; }
const String& sourceMappingURL() const { return m_sourceMappingURLDirective; }
TextPosition startPosition() const { return m_startPosition; }
intptr_t asID()
{
if (!m_id)
getID();
return m_id;
}
bool isValid() const { return m_validated; }
void setValid() { m_validated = true; }
private:
template <typename T> friend class Parser;
void setSourceURLDirective(const String& sourceURL) { m_sourceURLDirective = sourceURL; }
void setSourceMappingURLDirective(const String& sourceMappingURL) { m_sourceMappingURLDirective = sourceMappingURL; }
JS_EXPORT_PRIVATE void getID();
String m_url;
String m_sourceURLDirective;
String m_sourceMappingURLDirective;
TextPosition m_startPosition;
bool m_validated : 1;
uintptr_t m_id : sizeof(uintptr_t) * 8 - 1;
};
class StringSourceProvider : public SourceProvider {
public:
static Ref<StringSourceProvider> create(const String& source, const String& url, const TextPosition& startPosition = TextPosition::minimumPosition())
{
return adoptRef(*new StringSourceProvider(source, url, startPosition));
}
JS_EXPORT_PRIVATE ~StringSourceProvider() override;
unsigned hash() const override
{
return m_source.get().hash();
}
virtual StringView source() const override
{
return m_source.get();
}
private:
StringSourceProvider(const String& source, const String& url, const TextPosition& startPosition)
: SourceProvider(url, startPosition)
, m_source(source.isNull() ? *StringImpl::empty() : *source.impl())
{
}
Ref<StringImpl> m_source;
};
#if ENABLE(WEBASSEMBLY)
class WebAssemblySourceProvider : public SourceProvider {
public:
static Ref<WebAssemblySourceProvider> create(const Vector<uint8_t>& data, const String& url)
{
return adoptRef(*new WebAssemblySourceProvider(data, url));
}
unsigned hash() const override
{
return m_source.impl()->hash();
}
virtual StringView source() const override
{
return m_source;
}
const Vector<uint8_t>& data() const
{
return m_data;
}
private:
WebAssemblySourceProvider(const Vector<uint8_t>& data, const String& url)
: SourceProvider(url, TextPosition::minimumPosition())
, m_source("[WebAssembly source]")
, m_data(data)
{
}
String m_source;
Vector<uint8_t> m_data;
};
#endif
} // namespace JSC
#endif // SourceProvider_h
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