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 6251 2006-12-27 23:15:56Z 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 */
49 #include "native/jni.h"
51 #if defined(ENABLE_JAVAME_CLDC1_1)
52 # include "native/include/java_lang_String.h"
55 #include "native/include/java_lang_Class.h"
57 #include "toolbox/list.h"
59 #if defined(ENABLE_JAVASE)
60 # include "vm/annotation.h"
64 #include "vm/linker.h"
65 #include "vm/loader.h"
66 #include "vm/method.h"
67 #include "vm/references.h"
71 /* class state defines ********************************************************/
73 #define CLASS_LOADING 0x0001
74 #define CLASS_LOADED 0x0002
75 #define CLASS_LINKING 0x0004
76 #define CLASS_LINKED 0x0008
77 #define CLASS_INITIALIZING 0x0010
78 #define CLASS_INITIALIZED 0x0020
79 #define CLASS_ERROR 0x0040
82 /* some macros ****************************************************************/
84 #define CLASS_IS_OR_ALMOST_INITIALIZED(c) \
85 (((c)->state & CLASS_INITIALIZING) || ((c)->state & CLASS_INITIALIZED))
88 /* classinfo ******************************************************************/
90 struct classinfo { /* class structure */
91 java_lang_Class object; /* classinfos are also j.l.C objects */
93 s4 flags; /* ACC flags */
94 utf *name; /* class name */
96 s4 cpcount; /* number of entries in constant pool */
97 u1 *cptags; /* constant pool tags */
98 voidptr *cpinfos; /* pointer to constant pool info structures */
100 s4 classrefcount; /* number of symbolic class references */
101 constant_classref *classrefs; /* table of symbolic class references */
102 extra_classref *extclassrefs; /* additional classrefs */
103 s4 parseddescsize; /* size of the parsed descriptors block */
104 u1 *parseddescs; /* parsed descriptors */
106 classref_or_classinfo super; /* super class */
107 classinfo *sub; /* sub class pointer */
108 classinfo *nextsub; /* pointer to next class in sub class list */
110 s4 interfacescount; /* number of interfaces */
111 classref_or_classinfo *interfaces; /* superinterfaces */
113 s4 fieldscount; /* number of fields */
114 fieldinfo *fields; /* field table */
116 s4 methodscount; /* number of methods */
117 methodinfo *methods; /* method table */
119 listnode listnode; /* linkage */
121 s4 state; /* current class state */
122 s4 index; /* hierarchy depth (classes) or index */
124 s4 instancesize; /* size of an instance of this class */
126 vftbl_t *vftbl; /* pointer to virtual function table */
128 methodinfo *finalizer; /* finalizer method */
130 u2 innerclasscount; /* number of inner classes */
131 innerclassinfo *innerclass;
133 #if defined(ENABLE_JAVASE)
134 classref_or_classinfo enclosingclass; /* enclosing class */
135 constant_nameandtype *enclosingmethod; /* enclosing method */
138 utf *packagename; /* full name of the package */
139 utf *sourcefile; /* SourceFile attribute */
140 #if defined(ENABLE_JAVASE)
141 utf *signature; /* Signature attribute */
142 s4 runtimevisibleannotationscount;
143 annotation_t *runtimevisibleannotations;
145 java_objectheader *classloader; /* NULL for bootstrap classloader */
149 /* innerclassinfo *************************************************************/
151 struct innerclassinfo {
152 classref_or_classinfo inner_class; /* inner class pointer */
153 classref_or_classinfo outer_class; /* outer class pointer */
154 utf *name; /* innerclass name */
155 s4 flags; /* ACC flags */
159 /* extra_classref **************************************************************
161 for classrefs not occurring within descriptors
163 *******************************************************************************/
165 struct extra_classref {
166 extra_classref *next;
167 constant_classref classref;
171 /* global variables ***********************************************************/
173 extern list unlinkedclasses; /* this is only used for eager class loading */
176 /* frequently used classes ****************************************************/
178 /* important system classes */
180 extern classinfo *class_java_lang_Object;
181 extern classinfo *class_java_lang_Class;
182 extern classinfo *class_java_lang_ClassLoader;
183 extern classinfo *class_java_lang_Cloneable;
184 extern classinfo *class_java_lang_SecurityManager;
185 extern classinfo *class_java_lang_String;
186 extern classinfo *class_java_lang_System;
187 extern classinfo *class_java_lang_Thread;
188 extern classinfo *class_java_lang_ThreadGroup;
189 extern classinfo *class_java_lang_VMSystem;
190 extern classinfo *class_java_lang_VMThread;
191 extern classinfo *class_java_io_Serializable;
194 /* system exception classes required in cacao */
196 extern classinfo *class_java_lang_Throwable;
197 extern classinfo *class_java_lang_Error;
198 extern classinfo *class_java_lang_LinkageError;
199 extern classinfo *class_java_lang_NoClassDefFoundError;
200 extern classinfo *class_java_lang_OutOfMemoryError;
201 extern classinfo *class_java_lang_VirtualMachineError;
203 #if defined(ENABLE_JAVASE)
204 extern classinfo *class_java_lang_AbstractMethodError;
205 extern classinfo *class_java_lang_NoSuchMethodError;
208 #if defined(WITH_CLASSPATH_GNU)
209 extern classinfo *class_java_lang_VMThrowable;
212 extern classinfo *class_java_lang_Exception;
213 extern classinfo *class_java_lang_ClassCastException;
214 extern classinfo *class_java_lang_ClassNotFoundException;
215 extern classinfo *class_java_lang_IllegalArgumentException;
216 extern classinfo *class_java_lang_IllegalMonitorStateException;
219 #if defined(ENABLE_JAVASE)
220 extern classinfo *class_java_lang_Void;
223 extern classinfo *class_java_lang_Boolean;
224 extern classinfo *class_java_lang_Byte;
225 extern classinfo *class_java_lang_Character;
226 extern classinfo *class_java_lang_Short;
227 extern classinfo *class_java_lang_Integer;
228 extern classinfo *class_java_lang_Long;
229 extern classinfo *class_java_lang_Float;
230 extern classinfo *class_java_lang_Double;
233 /* some runtime exception */
235 extern classinfo *class_java_lang_NullPointerException;
238 /* some classes which may be used more often */
240 #if defined(ENABLE_JAVASE)
241 extern classinfo *class_java_lang_StackTraceElement;
242 extern classinfo *class_java_lang_reflect_Constructor;
243 extern classinfo *class_java_lang_reflect_Field;
244 extern classinfo *class_java_lang_reflect_Method;
245 extern classinfo *class_java_security_PrivilegedAction;
246 extern classinfo *class_java_util_Vector;
248 extern classinfo *arrayclass_java_lang_Object;
252 /* pseudo classes for the type checker ****************************************/
255 * pseudo_class_Arraystub
256 * (extends Object implements Cloneable, java.io.Serializable)
258 * If two arrays of incompatible component types are merged,
259 * the resulting reference has no accessible components.
260 * The result does, however, implement the interfaces Cloneable
261 * and java.io.Serializable. This pseudo class is used internally
262 * to represent such results. (They are *not* considered arrays!)
266 * This pseudo class is used internally to represent the
271 * This pseudo class is used internally to represent the
272 * the 'uninitialized object' type.
275 extern classinfo *pseudo_class_Arraystub;
276 extern classinfo *pseudo_class_Null;
277 extern classinfo *pseudo_class_New;
280 /* function prototypes ********************************************************/
282 /* create a new classinfo struct */
283 classinfo *class_create_classinfo(utf *u);
285 /* postset's the header.vftbl */
286 void class_postset_header_vftbl(void);
288 /* set the package name after the name has been set */
289 void class_set_packagename(classinfo *c);
291 bool class_load_attributes(classbuffer *cb);
293 /* retrieve constantpool element */
294 voidptr class_getconstant(classinfo *class, u4 pos, u4 ctype);
295 voidptr innerclass_getconstant(classinfo *c, u4 pos, u4 ctype);
297 /* frees all resources used by the class */
298 void class_free(classinfo *);
300 /* return an array class with the given component class */
301 classinfo *class_array_of(classinfo *component,bool link);
303 /* return an array class with the given dimension and element class */
304 classinfo *class_multiarray_of(s4 dim, classinfo *element,bool link);
306 /* return a classref for the given class name */
307 /* (does a linear search!) */
308 constant_classref *class_lookup_classref(classinfo *cls,utf *name);
310 /* return a classref for the given class name */
311 /* (does a linear search!) */
312 constant_classref *class_get_classref(classinfo *cls,utf *name);
314 /* return a classref to the class itself */
315 /* (does a linear search!) */
316 constant_classref *class_get_self_classref(classinfo *cls);
318 /* return a classref for an array with the given dimension of with the */
319 /* given component type */
320 constant_classref *class_get_classref_multiarray_of(s4 dim,constant_classref *ref);
322 /* return a classref for the component type of the given array type */
323 constant_classref *class_get_classref_component_of(constant_classref *ref);
325 /* get a class' field by name and descriptor */
326 fieldinfo *class_findfield(classinfo *c, utf *name, utf *desc);
328 /* search 'classinfo'-structure for a field with the specified name */
329 fieldinfo *class_findfield_by_name(classinfo *c, utf *name);
330 s4 class_findfield_index_by_name(classinfo *c, utf *name);
332 /* search class for a field */
333 fieldinfo *class_resolvefield(classinfo *c, utf *name, utf *desc, classinfo *referer, bool throwexception);
335 /* search for a method with a specified name and descriptor */
336 methodinfo *class_findmethod(classinfo *c, utf *name, utf *desc);
337 methodinfo *class_resolvemethod(classinfo *c, utf *name, utf *dest);
338 methodinfo *class_resolveclassmethod(classinfo *c, utf *name, utf *dest, classinfo *referer, bool throwexception);
339 methodinfo *class_resolveinterfacemethod(classinfo *c, utf *name, utf *dest, classinfo *referer, bool throwexception);
341 bool class_issubclass(classinfo *sub, classinfo *super);
343 /* some debugging functions */
346 void class_printflags(classinfo *c);
347 void class_print(classinfo *c);
348 void class_println(classinfo *c);
349 void class_classref_print(constant_classref *cr);
350 void class_classref_println(constant_classref *cr);
351 void class_classref_or_classinfo_print(classref_or_classinfo c);
352 void class_classref_or_classinfo_println(classref_or_classinfo c);
356 void class_showmethods(classinfo *c);
357 void class_showconstantpool(classinfo *c);
359 #endif /* _CLASS_H */
363 * These are local overrides for various environment variables in Emacs.
364 * Please do not remove this and leave it at the end of the file, where
365 * Emacs will automagically detect them.
366 * ---------------------------------------------------------------------
369 * indent-tabs-mode: t