#ifndef PutPropertySlot_h
#define PutPropertySlot_h
#include "JSCJSValue.h"
#include <wtf/Assertions.h>
namespace JSC {
class JSObject;
class JSFunction;
class PutPropertySlot {
public:
enum Type { Uncachable, ExistingProperty, NewProperty, SetterProperty, CustomProperty };
enum Context { UnknownContext, PutById, PutByIdEval };
typedef void (*PutValueFunc)(ExecState*, JSObject* base, EncodedJSValue thisObject, EncodedJSValue value);
PutPropertySlot(JSValue thisValue, bool isStrictMode = false, Context context = UnknownContext)
: m_type(Uncachable)
, m_base(0)
, m_thisValue(thisValue)
, m_isStrictMode(isStrictMode)
, m_context(context)
, m_putFunction(nullptr)
{
}
void setExistingProperty(JSObject* base, PropertyOffset offset)
{
m_type = ExistingProperty;
m_base = base;
m_offset = offset;
}
void setNewProperty(JSObject* base, PropertyOffset offset)
{
m_type = NewProperty;
m_base = base;
m_offset = offset;
}
void setCustomProperty(JSObject* base, PutValueFunc function)
{
m_type = CustomProperty;
m_base = base;
m_putFunction = function;
}
void setCacheableSetter(JSObject* base, PropertyOffset offset)
{
m_type = SetterProperty;
m_base = base;
m_offset = offset;
}
PutValueFunc customSetter() const { return m_putFunction; }
Context context() const { return static_cast<Context>(m_context); }
Type type() const { return m_type; }
JSObject* base() const { return m_base; }
JSValue thisValue() const { return m_thisValue; }
bool isStrictMode() const { return m_isStrictMode; }
bool isCacheablePut() const { return m_type == NewProperty || m_type == ExistingProperty; }
bool isCacheableSetter() const { return m_type == SetterProperty; }
bool isCacheableCustom() const { return m_type == CustomProperty; }
PropertyOffset cachedOffset() const
{
return m_offset;
}
private:
Type m_type;
JSObject* m_base;
JSValue m_thisValue;
PropertyOffset m_offset;
bool m_isStrictMode;
uint8_t m_context;
PutValueFunc m_putFunction;
};
}
#endif // PutPropertySlot_h