#ifndef DataView_h
#define DataView_h
#include <wtf/ArrayBufferView.h>
#include <wtf/PassRefPtr.h>
namespace WebCore {
typedef int ExceptionCode;
class DataView : public ArrayBufferView {
public:
static PassRefPtr<DataView> create(unsigned length);
static PassRefPtr<DataView> create(PassRefPtr<ArrayBuffer>, unsigned byteOffset, unsigned byteLength);
virtual bool isDataView() const { return true; }
virtual unsigned length() const { return m_byteLength; }
virtual unsigned byteLength() const { return m_byteLength; }
virtual PassRefPtr<ArrayBufferView> slice(int, int) const { return 0; }
int8_t getInt8(unsigned byteOffset, ExceptionCode&);
uint8_t getUint8(unsigned byteOffset, ExceptionCode&);
int16_t getInt16(unsigned byteOffset, ExceptionCode& ec) { return getInt16(byteOffset, false, ec); }
int16_t getInt16(unsigned byteOffset, bool littleEndian, ExceptionCode&);
uint16_t getUint16(unsigned byteOffset, ExceptionCode& ec) { return getUint16(byteOffset, false, ec); }
uint16_t getUint16(unsigned byteOffset, bool littleEndian, ExceptionCode&);
int32_t getInt32(unsigned byteOffset, ExceptionCode& ec) { return getInt32(byteOffset, false, ec); }
int32_t getInt32(unsigned byteOffset, bool littleEndian, ExceptionCode&);
uint32_t getUint32(unsigned byteOffset, ExceptionCode& ec) { return getUint32(byteOffset, false, ec); }
uint32_t getUint32(unsigned byteOffset, bool littleEndian, ExceptionCode&);
float getFloat32(unsigned byteOffset, ExceptionCode& ec) { return getFloat32(byteOffset, false, ec); }
float getFloat32(unsigned byteOffset, bool littleEndian, ExceptionCode&);
double getFloat64(unsigned byteOffset, ExceptionCode& ec) { return getFloat64(byteOffset, false, ec); }
double getFloat64(unsigned byteOffset, bool littleEndian, ExceptionCode&);
void setInt8(unsigned byteOffset, int8_t value, ExceptionCode&);
void setUint8(unsigned byteOffset, uint8_t value, ExceptionCode&);
void setInt16(unsigned byteOffset, int16_t value, ExceptionCode& ec) { setInt16(byteOffset, value, false, ec); }
void setInt16(unsigned byteOffset, int16_t value, bool littleEndian, ExceptionCode&);
void setUint16(unsigned byteOffset, uint16_t value, ExceptionCode& ec) { setUint16(byteOffset, value, false, ec); }
void setUint16(unsigned byteOffset, uint16_t value, bool littleEndian, ExceptionCode&);
void setInt32(unsigned byteOffset, int32_t value, ExceptionCode& ec) { setInt32(byteOffset, value, false, ec); }
void setInt32(unsigned byteOffset, int32_t value, bool littleEndian, ExceptionCode&);
void setUint32(unsigned byteOffset, uint32_t value, ExceptionCode& ec) { setUint32(byteOffset, value, false, ec); }
void setUint32(unsigned byteOffset, uint32_t value, bool littleEndian, ExceptionCode&);
void setFloat32(unsigned byteOffset, float value, ExceptionCode& ec) { setFloat32(byteOffset, value, false, ec); }
void setFloat32(unsigned byteOffset, float value, bool littleEndian, ExceptionCode&);
void setFloat64(unsigned byteOffset, double value, ExceptionCode& ec) { setFloat64(byteOffset, value, false, ec); }
void setFloat64(unsigned byteOffset, double value, bool littleEndian, ExceptionCode&);
protected:
virtual void neuter();
private:
DataView(PassRefPtr<ArrayBuffer>, unsigned byteOffset, unsigned byteLength);
template<typename T>
inline bool beyondRange(unsigned byteOffset) const { return byteOffset >= m_byteLength || byteOffset + sizeof(T) > m_byteLength; }
template<typename T>
T getData(unsigned byteOffset, bool littleEndian, ExceptionCode&) const;
template<typename T>
void setData(unsigned byteOffset, T value, bool littleEndian, ExceptionCode&);
unsigned m_byteLength;
};
}
#endif // DataView_h