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#ifndef SHARE_RUNTIME_FIELDDESCRIPTOR_HPP
#define SHARE_RUNTIME_FIELDDESCRIPTOR_HPP
#include "oops/constantPool.hpp"
#include "oops/fieldInfo.hpp"
#include "oops/instanceKlass.hpp"
#include "oops/symbol.hpp"
#include "utilities/accessFlags.hpp"
#include "utilities/constantTag.hpp"
// A fieldDescriptor describes the attributes of a single field (instance or class variable).
// It needs the class constant pool to work (because it only holds indices into the pool
// rather than the actual info).
class fieldDescriptor {
private :
AccessFlags _access_flags;
int _index; // the field index
constantPoolHandle _cp;
// update the access_flags for the field in the klass
inline void update_klass_field_access_flag();
inline FieldInfo* field() const ;
public :
fieldDescriptor() {
DEBUG_ONLY(_index = badInt);
}
fieldDescriptor(InstanceKlass* ik, int index) {
DEBUG_ONLY(_index = badInt);
reinitialize(ik, index);
}
inline Symbol* name() const ;
inline Symbol* signature() const ;
inline InstanceKlass* field_holder() const ;
inline ConstantPool* constants() const ;
AccessFlags access_flags() const { return _access_flags; }
// Offset (in bytes) of field from start of instanceOop / Klass*
inline int offset() const ;
Symbol* generic_signature() const ;
int index() const { return _index; }
AnnotationArray* annotations() const ;
AnnotationArray* type_annotations() const ;
// Initial field value
inline bool has_initial_value() const ;
inline int initial_value_index() const ;
constantTag initial_value_tag() const ; // The tag will return true on one of is_int(), is_long(), is_single(), is_double()
jint int_initial_value() const ;
jlong long_initial_value() const ;
jfloat float_initial_value() const ;
jdouble double_initial_value() const ;
oop string_initial_value(TRAPS) const ;
// Field signature type
inline BasicType field_type() const ;
// Access flags
bool is_private() const { return access_flags().is_private(); }
bool is_protected() const { return access_flags().is_protected(); }
bool is_static() const { return access_flags().is_static(); }
bool is_final() const { return access_flags().is_final(); }
bool is_stable() const { return access_flags().is_stable(); }
bool is_synthetic() const { return access_flags().is_synthetic(); }
bool is_field_access_watched() const { return access_flags().is_field_access_watched(); }
bool is_field_modification_watched() const
{ return access_flags().is_field_modification_watched(); }
bool has_initialized_final_update() const { return access_flags().has_field_initialized_final_update(); }
bool has_generic_signature() const { return access_flags().field_has_generic_signature(); }
bool is_trusted_final() const ;
inline void set_is_field_access_watched(const bool value);
inline void set_is_field_modification_watched(const bool value);
inline void set_has_initialized_final_update(const bool value);
// Initialization
void reinitialize(InstanceKlass* ik, int index);
// Print
void print() const ;
void print_on(outputStream* st) const ;
void print_on_for(outputStream* st, oop obj);
void verify() const PRODUCT_RETURN;
};
#endif // SHARE_RUNTIME_FIELDDESCRIPTOR_HPP
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