#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; }
void setSourceURLDirective(const String& sourceURL) { m_sourceURLDirective = sourceURL; }
void setSourceMappingURLDirective(const String& sourceMappingURL) { m_sourceMappingURLDirective = sourceMappingURL; }
private:
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));
}
unsigned hash() const override
{
return m_source.get().hash();
}
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();
}
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
}
#endif // SourceProvider_h