class.h

gcc的组建

  java::lang::reflect::Field *getPrivateField (jstring);
  java::lang::reflect::Method *getPrivateMethod (jstring, JArray<jclass> *);
  java::security::ProtectionDomain *getProtectionDomain0 ();

  java::lang::reflect::Method *_getMethod (jstring, JArray<jclass> *);
  java::lang::reflect::Method *_getDeclaredMethod (jstring, JArray<jclass> *);

public:
  JArray<java::lang::reflect::Field *> *getFields (void);

  JArray<jclass> *getInterfaces (void);

  void getSignature (java::lang::StringBuffer *buffer);
  static jstring getSignature (JArray<jclass> *, jboolean is_constructor);
  JArray<java::lang::reflect::Method *> *getMethods (void);

  inline jint getModifiers (void)
  {
    return accflags & java::lang::reflect::Modifier::ALL_FLAGS;
  }

  jstring getName (void);

  java::net::URL        *getResource (jstring resourceName);
  java::io::InputStream *getResourceAsStream (jstring resourceName);
  JArray<jobject> *getSigners (void);
  void setSigners(JArray<jobject> *);

  inline jclass getSuperclass (void)
  {
    return superclass;
  }

  inline jclass getInterface (jint n)
  {
    return interfaces[n];
  }

  inline jboolean isArray (void)
    {
      return name->first() == '[';
    }

  inline jclass getComponentType (void)
    {
      return isArray () ? (* (jclass *) &methods) : 0;
    }

  jboolean isAssignableFrom (jclass cls);
  jboolean isInstance (jobject obj);

  inline jboolean isInterface (void)
  {
    return (accflags & java::lang::reflect::Modifier::INTERFACE) != 0;
  }
  
  inline jboolean isPrimitive (void)
    {
      return vtable == JV_PRIMITIVE_VTABLE;
    }

  jobject newInstance (void);
  java::security::ProtectionDomain *getProtectionDomain (void);
  java::lang::Package *getPackage (void);
  jstring toString (void);
  jboolean desiredAssertionStatus (void);

  // FIXME: this probably shouldn't be public.
  jint size (void)
  {
    return size_in_bytes;
  }

  // The index of the first method we declare ourself (as opposed to
  // inheriting).
  inline jint firstMethodIndex (void)
  {
    return vtable_method_count - method_count;
  }
    
  // finalization
  void finalize ();

  // This constructor is used to create Class object for the primitive
  // types. See prims.cc.
  Class ();

  static java::lang::Class class$;

private:   

  void memberAccessCheck (jint flags);

  void initializeClass (void);

  static jstring getPackagePortion (jstring);

  void set_state (jint nstate)
  {
    state = nstate;
    notifyAll ();
  }

  // Friend functions implemented in natClass.cc.
  friend _Jv_Method *::_Jv_GetMethodLocal (jclass klass, _Jv_Utf8Const *name,
					   _Jv_Utf8Const *signature);
  friend jboolean (::_Jv_IsAssignableFrom) (jclass, jclass);
  friend jboolean (::_Jv_IsAssignableFromSlow) (jclass, jclass);
  friend jboolean (::_Jv_InterfaceAssignableFrom) (jclass, jclass);
  friend void *::_Jv_LookupInterfaceMethodIdx (jclass klass, jclass iface, 
					       int method_idx);

  friend void ::_Jv_InitClass (jclass klass);

  friend _Jv_Method* ::_Jv_LookupDeclaredMethod (jclass, _Jv_Utf8Const *, 
						 _Jv_Utf8Const*, jclass *);
  friend jfieldID (::JvGetFirstInstanceField) (jclass);
  friend jint (::JvNumInstanceFields) (jclass);
  friend jfieldID (::JvGetFirstStaticField) (jclass);
  friend jint (::JvNumStaticFields) (jclass);

  friend jobject (::_Jv_AllocObject) (jclass);
  friend void *::_Jv_AllocObj (jint, jclass);
  friend void *::_Jv_AllocPtrFreeObj (jint, jclass);
  friend void *::_Jv_AllocArray (jint, jclass);

  friend jobject (::_Jv_JNI_ToReflectedField) (_Jv_JNIEnv *, jclass, jfieldID,
					       jboolean);
  friend jobject (::_Jv_JNI_ToReflectedMethod) (_Jv_JNIEnv *, jclass, jmethodID,
						jboolean);
  friend jfieldID (::_Jv_FromReflectedField) (java::lang::reflect::Field *);

  friend jmethodID (::_Jv_FromReflectedMethod) (java::lang::reflect::Method *);
  friend jmethodID (::_Jv_FromReflectedConstructor) (java::lang::reflect::Constructor *);
  friend jint (::JvNumMethods) (jclass);
  friend jmethodID (::JvGetFirstMethod) (jclass);

  // Friends classes and functions to implement the ClassLoader
  friend class java::lang::ClassLoader;
  friend class java::lang::VMClassLoader;

  friend class java::io::ObjectOutputStream;
  friend class java::io::ObjectInputStream;
  friend class java::io::ObjectStreamClass;

  friend void ::_Jv_RegisterClasses (const jclass *classes);
  friend void ::_Jv_RegisterClasses_Counted (const jclass *classes, 
					     size_t count);
  friend void ::_Jv_RegisterClassHookDefault (jclass klass);
  friend void ::_Jv_RegisterInitiatingLoader (jclass,java::lang::ClassLoader*);
  friend void ::_Jv_UnregisterInitiatingLoader (jclass,java::lang::ClassLoader*);
  friend void ::_Jv_UnregisterClass (jclass);
  friend jclass (::_Jv_FindClass) (_Jv_Utf8Const *name,
				   java::lang::ClassLoader *loader);
  friend jclass (::_Jv_FindClassInCache) (_Jv_Utf8Const *name);
  friend jclass (::_Jv_PopClass) (void);
  friend void ::_Jv_PushClass (jclass k);
  friend void ::_Jv_NewArrayClass (jclass element,
				   java::lang::ClassLoader *loader,
				   _Jv_VTable *array_vtable);
  friend jclass (::_Jv_NewClass) (_Jv_Utf8Const *name, jclass superclass,
				  java::lang::ClassLoader *loader);
  friend void ::_Jv_InitNewClassFields (jclass klass);

  // in prims.cc
  friend void ::_Jv_InitPrimClass (jclass, char *, char, int);

  friend jstring (::_Jv_GetMethodString) (jclass, _Jv_Method *, jclass);

  friend jboolean (::_Jv_CheckAccess) (jclass self_klass, jclass other_klass,
				   jint flags);
  
  friend bool (::_Jv_getInterfaceMethod) (jclass, jclass&, int&, 
					  const _Jv_Utf8Const*,
					  const _Jv_Utf8Const*);

  friend jclass (::_Jv_GetArrayClass) (jclass klass,
				       java::lang::ClassLoader *loader);

  friend jboolean (::_Jv_IsInterpretedClass) (jclass);
  friend jboolean (::_Jv_IsBinaryCompatibilityABI) (jclass);

#ifdef INTERPRETER
  friend void ::_Jv_InitField (jobject, jclass, int);

  friend class ::_Jv_ClassReader;	
  friend class ::_Jv_InterpClass;
  friend class ::_Jv_InterpMethod;
#endif
  friend class ::_Jv_StackTrace;

#ifdef JV_MARKOBJ_DECL
  friend JV_MARKOBJ_DECL;
#endif

  friend class ::_Jv_BytecodeVerifier;
  friend class java::io::VMObjectStreamClass;

  friend class ::_Jv_Linker;
  friend class ::_Jv_ExecutionEngine;
  friend class ::_Jv_CompiledEngine;
  friend class ::_Jv_InterpreterEngine;

  friend void ::_Jv_sharedlib_register_hook (jclass klass);

  friend void *::_Jv_ResolvePoolEntry (jclass this_class, jint index);

  friend void ::_Jv_CopyClassesToSystemLoader (gnu::gcj::runtime::SystemClassLoader *);

  // Chain for class pool.  This also doubles as the ABI version
  // number.  It is only used for this purpose at class registration
  // time, and only for precompiled classes.
  jclass next_or_version;
  // Name of class.
  _Jv_Utf8Const *name;
  // Access flags for class.
  _Jv_ushort accflags;
  // The superclass, or null for Object.
  jclass superclass;
  // Class constants.
  _Jv_Constants constants;
  // Methods.  If this is an array class, then this field holds a
  // pointer to the element type.
  _Jv_Method *methods;
  // Number of methods.  If this class is primitive, this holds the
  // character used to represent this type in a signature.
  jshort method_count;
  // Number of methods in the vtable.
  jshort vtable_method_count;
  // The fields.
  _Jv_Field *fields;
  // Size of instance fields, in bytes.
  jint size_in_bytes;
  // Total number of fields (instance and static).
  jshort field_count;
  // Number of static fields.
  jshort static_field_count;
  // The vtbl for all objects of this class.
  _Jv_VTable *vtable;
  // Virtual method offset table.
  _Jv_OffsetTable *otable;
  // Offset table symbols.
  _Jv_MethodSymbol *otable_syms;
  // Address table
  _Jv_AddressTable *atable;
  _Jv_MethodSymbol *atable_syms;
  // Interface table
  _Jv_AddressTable *itable;
  _Jv_MethodSymbol *itable_syms;
  _Jv_CatchClass *catch_classes;
  // Interfaces implemented by this class.
  jclass *interfaces;
  // The class loader for this class.
  java::lang::ClassLoader *loader;
  // Number of interfaces.
  jshort interface_count;
  // State of this class.
  jbyte state;
  // The thread which has locked this class.  Used during class
  // initialization.
  java::lang::Thread *thread;
  // How many levels of "extends" this class is removed from Object.
  jshort depth;
  // Vector of this class's superclasses, ordered by decreasing depth.
  jclass *ancestors;
  // Interface Dispatch Table.
  _Jv_IDispatchTable *idt;
  // Pointer to the class that represents an array of this class.
  jclass arrayclass;
  // Security Domain to which this class belongs (or null).
  java::security::ProtectionDomain *protectionDomain;
  // Pointer to the type assertion table for this class.
  _Jv_TypeAssertion *assertion_table;
  // Signers of this class (or null).
  JArray<jobject> *hack_signers;
  // Used by Jv_PopClass and _Jv_PushClass to communicate with StackTrace.
  jclass chain;
  // Additional data, specific to the generator (JIT, native,
  // interpreter) of this class.
  void *aux_info;
  // Execution engine.
  _Jv_ExecutionEngine *engine;
};

// Inline functions that are friends of java::lang::Class

inline void _Jv_InitClass (jclass klass)
{
  if (__builtin_expect (klass->state == JV_STATE_DONE, true))
    return;
  klass->initializeClass ();  
}

// Return array class corresponding to element type KLASS, creating it if
// necessary.
inline jclass
_Jv_GetArrayClass (jclass klass, java::lang::ClassLoader *loader)
{
  extern void _Jv_NewArrayClass (jclass element,
				 java::lang::ClassLoader *loader,
				 _Jv_VTable *array_vtable = 0);
  if (__builtin_expect (!klass->arrayclass, false))
    _Jv_NewArrayClass (klass, loader);
  return klass->arrayclass;
}

#endif /* __JAVA_LANG_CLASS_H__ */