1 /* src/vm/class.h - class related functions header
3 Copyright (C) 1996-2005, 2006 R. Grafl, A. Krall, C. Kruegel,
4 C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
5 E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
6 J. Wenninger, Institut f. Computersprachen - TU Wien
8 This file is part of CACAO.
10 This program is free software; you can redistribute it and/or
11 modify it under the terms of the GNU General Public License as
12 published by the Free Software Foundation; either version 2, or (at
13 your option) any later version.
15 This program is distributed in the hope that it will be useful, but
16 WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
25 Contact: cacao@cacaojvm.org
27 Authors: Christian Thalinger
29 $Id: class.h 6085 2006-11-29 17:08:27Z twisti $
37 /* forward typedefs ***********************************************************/
39 typedef struct classinfo classinfo;
40 typedef struct innerclassinfo innerclassinfo;
41 typedef struct extra_classref extra_classref;
47 #include "vm/global.h" /* define java_objectheader for j.l.C */
48 #include "native/include/java_lang_Class.h"
50 #include "toolbox/list.h"
52 #if defined(ENABLE_JAVASE)
53 # include "vm/annotation.h"
57 #include "vm/linker.h"
58 #include "vm/method.h"
59 #include "vm/references.h"
63 /* class state defines ********************************************************/
65 #define CLASS_LOADING 0x0001
66 #define CLASS_LOADED 0x0002
67 #define CLASS_LINKING 0x0004
68 #define CLASS_LINKED 0x0008
69 #define CLASS_INITIALIZING 0x0010
70 #define CLASS_INITIALIZED 0x0020
71 #define CLASS_ERROR 0x0040
74 /* some macros ****************************************************************/
76 #define CLASS_IS_OR_ALMOST_INITIALIZED(c) \
77 (((c)->state & CLASS_INITIALIZING) || ((c)->state & CLASS_INITIALIZED))
80 /* classinfo ******************************************************************/
82 struct classinfo { /* class structure */
83 java_lang_Class object; /* classinfos are also j.l.C objects */
85 s4 flags; /* ACC flags */
86 utf *name; /* class name */
88 s4 cpcount; /* number of entries in constant pool */
89 u1 *cptags; /* constant pool tags */
90 voidptr *cpinfos; /* pointer to constant pool info structures */
92 s4 classrefcount; /* number of symbolic class references */
93 constant_classref *classrefs; /* table of symbolic class references */
94 extra_classref *extclassrefs; /* additional classrefs */
95 s4 parseddescsize; /* size of the parsed descriptors block */
96 u1 *parseddescs; /* parsed descriptors */
98 classref_or_classinfo super; /* super class */
99 classinfo *sub; /* sub class pointer */
100 classinfo *nextsub; /* pointer to next class in sub class list */
102 s4 interfacescount; /* number of interfaces */
103 classref_or_classinfo *interfaces; /* superinterfaces */
105 s4 fieldscount; /* number of fields */
106 fieldinfo *fields; /* field table */
108 s4 methodscount; /* number of methods */
109 methodinfo *methods; /* method table */
111 listnode listnode; /* linkage */
113 s4 state; /* current class state */
114 s4 index; /* hierarchy depth (classes) or index */
116 s4 instancesize; /* size of an instance of this class */
118 vftbl_t *vftbl; /* pointer to virtual function table */
120 methodinfo *finalizer; /* finalizer method */
122 u2 innerclasscount; /* number of inner classes */
123 innerclassinfo *innerclass;
125 utf *packagename; /* full name of the package */
126 utf *sourcefile; /* SourceFile attribute */
127 #if defined(ENABLE_JAVASE)
128 utf *signature; /* Signature attribute */
129 s4 runtimevisibleannotationscount;
130 annotation_t *runtimevisibleannotations;
132 java_objectheader *classloader; /* NULL for bootstrap classloader */
136 /* innerclassinfo *************************************************************/
138 struct innerclassinfo {
139 classref_or_classinfo inner_class; /* inner class pointer */
140 classref_or_classinfo outer_class; /* outer class pointer */
141 utf *name; /* innerclass name */
142 s4 flags; /* ACC flags */
146 /* extra_classref **************************************************************
148 for classrefs not occurring within descriptors
150 *******************************************************************************/
152 struct extra_classref {
153 extra_classref *next;
154 constant_classref classref;
158 /* global variables ***********************************************************/
160 extern list unlinkedclasses; /* this is only used for eager class loading */
163 /* frequently used classes ****************************************************/
165 /* important system classes */
167 extern classinfo *class_java_lang_Object;
168 extern classinfo *class_java_lang_Class;
169 extern classinfo *class_java_lang_ClassLoader;
170 extern classinfo *class_java_lang_Cloneable;
171 extern classinfo *class_java_lang_SecurityManager;
172 extern classinfo *class_java_lang_String;
173 extern classinfo *class_java_lang_System;
174 extern classinfo *class_java_lang_Thread;
175 extern classinfo *class_java_lang_ThreadGroup;
176 extern classinfo *class_java_lang_VMSystem;
177 extern classinfo *class_java_lang_VMThread;
178 extern classinfo *class_java_io_Serializable;
181 /* system exception classes required in cacao */
183 extern classinfo *class_java_lang_Throwable;
184 extern classinfo *class_java_lang_VMThrowable;
185 extern classinfo *class_java_lang_Error;
186 extern classinfo *class_java_lang_AbstractMethodError;
187 extern classinfo *class_java_lang_LinkageError;
188 extern classinfo *class_java_lang_NoClassDefFoundError;
189 extern classinfo *class_java_lang_NoSuchMethodError;
190 extern classinfo *class_java_lang_OutOfMemoryError;
192 extern classinfo *class_java_lang_Exception;
193 extern classinfo *class_java_lang_ClassCastException;
194 extern classinfo *class_java_lang_ClassNotFoundException;
195 extern classinfo *class_java_lang_IllegalArgumentException;
196 extern classinfo *class_java_lang_IllegalMonitorStateException;
199 extern classinfo *class_java_lang_Void;
200 extern classinfo *class_java_lang_Boolean;
201 extern classinfo *class_java_lang_Byte;
202 extern classinfo *class_java_lang_Character;
203 extern classinfo *class_java_lang_Short;
204 extern classinfo *class_java_lang_Integer;
205 extern classinfo *class_java_lang_Long;
206 extern classinfo *class_java_lang_Float;
207 extern classinfo *class_java_lang_Double;
210 /* some runtime exception */
212 extern classinfo *class_java_lang_NullPointerException;
215 /* some classes which may be used more often */
217 extern classinfo *class_java_lang_StackTraceElement;
218 extern classinfo *class_java_lang_reflect_Constructor;
219 extern classinfo *class_java_lang_reflect_Field;
220 extern classinfo *class_java_lang_reflect_Method;
221 extern classinfo *class_java_security_PrivilegedAction;
222 extern classinfo *class_java_util_Vector;
224 extern classinfo *arrayclass_java_lang_Object;
227 /* pseudo classes for the type checker ****************************************/
230 * pseudo_class_Arraystub
231 * (extends Object implements Cloneable, java.io.Serializable)
233 * If two arrays of incompatible component types are merged,
234 * the resulting reference has no accessible components.
235 * The result does, however, implement the interfaces Cloneable
236 * and java.io.Serializable. This pseudo class is used internally
237 * to represent such results. (They are *not* considered arrays!)
241 * This pseudo class is used internally to represent the
246 * This pseudo class is used internally to represent the
247 * the 'uninitialized object' type.
250 extern classinfo *pseudo_class_Arraystub;
251 extern classinfo *pseudo_class_Null;
252 extern classinfo *pseudo_class_New;
255 /* function prototypes ********************************************************/
257 /* create a new classinfo struct */
258 classinfo *class_create_classinfo(utf *u);
260 /* postset's the header.vftbl */
261 void class_postset_header_vftbl(void);
263 /* set the package name after the name has been set */
264 void class_set_packagename(classinfo *c);
266 /* retrieve constantpool element */
267 voidptr class_getconstant(classinfo *class, u4 pos, u4 ctype);
268 voidptr innerclass_getconstant(classinfo *c, u4 pos, u4 ctype);
270 /* frees all resources used by the class */
271 void class_free(classinfo *);
273 /* return an array class with the given component class */
274 classinfo *class_array_of(classinfo *component,bool link);
276 /* return an array class with the given dimension and element class */
277 classinfo *class_multiarray_of(s4 dim, classinfo *element,bool link);
279 /* return a classref for the given class name */
280 /* (does a linear search!) */
281 constant_classref *class_lookup_classref(classinfo *cls,utf *name);
283 /* return a classref for the given class name */
284 /* (does a linear search!) */
285 constant_classref *class_get_classref(classinfo *cls,utf *name);
287 /* return a classref to the class itself */
288 /* (does a linear search!) */
289 constant_classref *class_get_self_classref(classinfo *cls);
291 /* return a classref for an array with the given dimension of with the */
292 /* given component type */
293 constant_classref *class_get_classref_multiarray_of(s4 dim,constant_classref *ref);
295 /* return a classref for the component type of the given array type */
296 constant_classref *class_get_classref_component_of(constant_classref *ref);
298 /* get a class' field by name and descriptor */
299 fieldinfo *class_findfield(classinfo *c, utf *name, utf *desc);
301 /* search 'classinfo'-structure for a field with the specified name */
302 fieldinfo *class_findfield_by_name(classinfo *c, utf *name);
303 s4 class_findfield_index_by_name(classinfo *c, utf *name);
305 /* search class for a field */
306 fieldinfo *class_resolvefield(classinfo *c, utf *name, utf *desc, classinfo *referer, bool throwexception);
308 /* search for a method with a specified name and descriptor */
309 methodinfo *class_findmethod(classinfo *c, utf *name, utf *desc);
310 methodinfo *class_resolvemethod(classinfo *c, utf *name, utf *dest);
311 methodinfo *class_resolveclassmethod(classinfo *c, utf *name, utf *dest, classinfo *referer, bool throwexception);
312 methodinfo *class_resolveinterfacemethod(classinfo *c, utf *name, utf *dest, classinfo *referer, bool throwexception);
314 bool class_issubclass(classinfo *sub, classinfo *super);
316 /* some debugging functions */
319 void class_printflags(classinfo *c);
320 void class_print(classinfo *c);
321 void class_println(classinfo *c);
322 void class_classref_print(constant_classref *cr);
323 void class_classref_println(constant_classref *cr);
324 void class_classref_or_classinfo_print(classref_or_classinfo c);
325 void class_classref_or_classinfo_println(classref_or_classinfo c);
329 void class_showmethods(classinfo *c);
330 void class_showconstantpool(classinfo *c);
332 #endif /* _CLASS_H */
336 * These are local overrides for various environment variables in Emacs.
337 * Please do not remove this and leave it at the end of the file, where
338 * Emacs will automagically detect them.
339 * ---------------------------------------------------------------------
342 * indent-tabs-mode: t