+++ /dev/null
-// Class.h - Header file for java.lang.Class. -*- c++ -*-
-
-/* Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation
-
- This file is part of libgcj.
-
-This software is copyrighted work licensed under the terms of the
-Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
-details. */
-
-// Written primary using compiler source and Class.java as guides.
-#ifndef __JAVA_LANG_CLASS_H__
-#define __JAVA_LANG_CLASS_H__
-
-#pragma interface
-
-#include <java/lang/Object.h>
-#include <java/lang/String.h>
-#include <java/net/URL.h>
-#include <java/lang/reflect/Modifier.h>
-#include <java/security/ProtectionDomain.h>
-
-// We declare these here to avoid including gcj/cni.h.
-extern "C" void _Jv_InitClass (jclass klass);
-extern "C" void _Jv_RegisterClasses (jclass *classes);
-
-// This must be predefined with "C" linkage.
-extern "C" void *_Jv_LookupInterfaceMethodIdx (jclass klass, jclass iface,
- int meth_idx);
-
-// These are the possible values for the `state' field of the class
-// structure. Note that ordering is important here. Whenever the
-// state changes, one should notify all waiters of this class.
-enum
-{
- JV_STATE_NOTHING = 0, // Set by compiler.
-
- JV_STATE_PRELOADING = 1, // Can do _Jv_FindClass.
- JV_STATE_LOADING = 3, // Has super installed.
- JV_STATE_LOADED = 5, // Is complete.
-
- JV_STATE_COMPILED = 6, // This was a compiled class.
-
- JV_STATE_PREPARED = 7, // Layout & static init done.
- JV_STATE_LINKED = 9, // Strings interned.
-
- JV_STATE_IN_PROGRESS = 10, // <Clinit> running.
- JV_STATE_DONE = 12, //
-
- JV_STATE_ERROR = 14 // must be last.
-};
-
-struct _Jv_Field;
-struct _Jv_VTable;
-union _Jv_word;
-struct _Jv_ArrayVTable;
-
-struct _Jv_Constants
-{
- jint size;
- jbyte *tags;
- _Jv_word *data;
-};
-
-struct _Jv_Method
-{
- // Method name.
- _Jv_Utf8Const *name;
- // Method signature.
- _Jv_Utf8Const *signature;
- // Access flags.
- _Jv_ushort accflags;
- // Method's index in the vtable.
- _Jv_ushort index;
- // Pointer to underlying function.
- void *ncode;
- // NULL-terminated list of exception class names; can be NULL if
- // there are none such.
- _Jv_Utf8Const **throws;
-
- _Jv_Method *getNextMethod ()
- { return this + 1; }
-};
-
-// Interface Dispatch Tables
-union _Jv_IDispatchTable
-{
- struct
- {
- // Index into interface's ioffsets.
- jshort iindex;
- jshort itable_length;
- // Class Interface dispatch table.
- void **itable;
- } cls;
-
- struct
- {
- // Offsets into implementation class itables.
- jshort *ioffsets;
- } iface;
-};
-
-// Used by _Jv_GetInterfaces ()
-struct _Jv_ifaces
-{
- jclass *list;
- jshort len;
- jshort count;
-};
-
-struct _Jv_MethodSymbol
-{
- _Jv_Utf8Const *class_name;
- _Jv_Utf8Const *name;
- _Jv_Utf8Const *signature;
-};
-
-struct _Jv_OffsetTable
-{
- jint state;
- jint offsets[];
-};
-
-#define JV_PRIMITIVE_VTABLE ((_Jv_VTable *) -1)
-
-#define JV_CLASS(Obj) ((jclass) (*(_Jv_VTable **) Obj)->clas)
-
-class java::lang::Class : public java::lang::Object
-{
-public:
- static jclass forName (jstring className, jboolean initialize,
- java::lang::ClassLoader *loader);
- static jclass forName (jstring className);
- JArray<jclass> *getClasses (void);
-
- java::lang::ClassLoader *getClassLoader (void);
-
- java::lang::reflect::Constructor *getConstructor (JArray<jclass> *);
- JArray<java::lang::reflect::Constructor *> *getConstructors (void);
- java::lang::reflect::Constructor *getDeclaredConstructor (JArray<jclass> *);
- JArray<java::lang::reflect::Constructor *> *getDeclaredConstructors (void);
- java::lang::reflect::Field *getDeclaredField (jstring);
- JArray<java::lang::reflect::Field *> *getDeclaredFields (void);
- java::lang::reflect::Method *getDeclaredMethod (jstring, JArray<jclass> *);
- JArray<java::lang::reflect::Method *> *getDeclaredMethods (void);
-
- JArray<jclass> *getDeclaredClasses (void);
- jclass getDeclaringClass (void);
-
- java::lang::reflect::Field *getField (jstring);
-private:
- jint _getFields (JArray<java::lang::reflect::Field *> *result, jint offset);
- JArray<java::lang::reflect::Constructor *> *_getConstructors (jboolean);
- java::lang::reflect::Field *getField (jstring, jint);
- jint _getMethods (JArray<java::lang::reflect::Method *> *result,
- jint offset);
- java::lang::reflect::Field *getPrivateField (jstring);
- java::lang::reflect::Method *getPrivateMethod (jstring, JArray<jclass> *);
- java::security::ProtectionDomain *getProtectionDomain0 ();
-
-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);
- java::lang::reflect::Method *getMethod (jstring, JArray<jclass> *);
- JArray<java::lang::reflect::Method *> *getMethods (void);
-
- inline jint getModifiers (void)
- {
- return accflags;
- }
-
- jstring getName (void);
-
- java::net::URL *getResource (jstring resourceName);
- java::io::InputStream *getResourceAsStream (jstring resourceName);
- JArray<jobject> *getSigners (void);
-
- inline jclass getSuperclass (void)
- {
- return superclass;
- }
-
- inline jboolean isArray (void)
- {
- return name->data[0] == '[';
- }
-
- 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);
- jstring toString (void);
-
- // FIXME: this probably shouldn't be public.
- jint size (void)
- {
- return size_in_bytes;
- }
-
- // 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 checkMemberAccess (jint flags);
-
- void initializeClass (void);
-
- // 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_InterfaceAssignableFrom (jclass, jclass);
- friend void *_Jv_LookupInterfaceMethodIdx (jclass klass, jclass iface,
- int method_idx);
-
- inline friend void
- _Jv_InitClass (jclass klass)
- {
- if (__builtin_expect (klass->state == JV_STATE_DONE, true))
- return;
- klass->initializeClass ();
- }
-
- friend _Jv_Method* _Jv_LookupDeclaredMethod (jclass, _Jv_Utf8Const *,
- _Jv_Utf8Const*);
- friend jfieldID JvGetFirstInstanceField (jclass);
- friend jint JvNumInstanceFields (jclass);
- friend jfieldID JvGetFirstStaticField (jclass);
- friend jint JvNumStaticFields (jclass);
-
- friend jobject _Jv_AllocObject (jclass, jint);
- 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::io::ObjectOutputStream;
- friend class java::io::ObjectInputStream;
- friend class java::io::ObjectStreamClass;
-
- friend void _Jv_WaitForState (jclass, int);
- friend void _Jv_RegisterClasses (jclass *classes);
- friend void _Jv_RegisterClassHookDefault (jclass klass);
- friend void _Jv_RegisterInitiatingLoader (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,
- java::lang::ClassLoader *loader);
- friend void _Jv_NewArrayClass (jclass element,
- java::lang::ClassLoader *loader,
- _Jv_VTable *array_vtable = 0);
- 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, _Jv_ArrayVTable *);
-
- friend void _Jv_PrepareCompiledClass (jclass);
- friend void _Jv_PrepareConstantTimeTables (jclass);
- friend jshort _Jv_GetInterfaces (jclass, _Jv_ifaces *);
- friend void _Jv_GenerateITable (jclass, _Jv_ifaces *, jshort *);
- friend jstring _Jv_GetMethodString(jclass, _Jv_Utf8Const *);
- friend jshort _Jv_AppendPartialITable (jclass, jclass, void **, jshort);
- friend jshort _Jv_FindIIndex (jclass *, jshort *, jshort);
- friend void _Jv_LinkOffsetTable (jclass);
- friend void _Jv_LayoutVTableMethods (jclass klass);
- friend void _Jv_SetVTableEntries (jclass, _Jv_VTable *);
- friend void _Jv_MakeVTable (jclass);
-
- // Return array class corresponding to element type KLASS, creating it if
- // necessary.
- inline friend jclass
- _Jv_GetArrayClass (jclass klass, java::lang::ClassLoader *loader)
- {
- if (__builtin_expect (!klass->arrayclass, false))
- _Jv_NewArrayClass (klass, loader);
- return klass->arrayclass;
- }
-
-#ifdef INTERPRETER
- friend jboolean _Jv_IsInterpretedClass (jclass);
- friend void _Jv_InitField (jobject, jclass, _Jv_Field*);
- friend int _Jv_DetermineVTableIndex (jclass, _Jv_Utf8Const *,
- _Jv_Utf8Const*);
- friend void _Jv_InitField (jobject, jclass, int);
- friend _Jv_word _Jv_ResolvePoolEntry (jclass, int);
- friend _Jv_Method *_Jv_SearchMethodInClass (jclass cls, jclass klass,
- _Jv_Utf8Const *method_name,
- _Jv_Utf8Const *method_signature);
-
- friend void _Jv_PrepareClass (jclass);
-
- friend class _Jv_ClassReader;
- friend class _Jv_InterpClass;
- friend class _Jv_InterpMethod;
- friend class _Jv_InterpMethodInvocation;
-#endif
-
-#ifdef JV_MARKOBJ_DECL
- friend JV_MARKOBJ_DECL;
-#endif
-
- friend class _Jv_BytecodeVerifier;
-
- // Chain for class pool.
- jclass next;
- // 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;
- // 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;
-};
-
-#endif /* __JAVA_LANG_CLASS_H__ */
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