1 /* vm/references.h - references to classes/fields/methods
3 Copyright (C) 1996-2005 R. Grafl, A. Krall, C. Kruegel, C. Oates,
4 R. Obermaisser, M. Platter, M. Probst, S. Ring, E. Steiner,
5 C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich, J. Wenninger,
6 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., 59 Temple Place - Suite 330, Boston, MA
25 Contact: cacao@complang.tuwien.ac.at
27 Authors: Edwin Steiner
31 $Id: references.h 2181 2005-04-01 16:53:33Z edwin $
35 #ifndef _REFERENCES_H_
36 #define _REFERENCES_H_
38 #include "vm/global.h"
41 /*----------------------------------------------------------------------------*/
44 /* This header files defines the following types used for references to */
45 /* classes/methods/fields and descriptors: */
47 /* classinfo * a loaded class */
48 /* constant_classref a symbolic reference */
49 /* classref_or_classinfo a loaded class or a symbolic reference */
51 /* constant_FMIref a symb. ref. to a field/method/intf.method */
53 /* typedesc * describes a field type */
54 /* methoddesc * descrives a method type */
55 /* parseddesc describes a field type or a method type */
56 /*----------------------------------------------------------------------------*/
58 /* forward declarations *******************************************************/
60 typedef struct classinfo classinfo;
61 typedef struct typedesc typedesc;
62 typedef struct methoddesc methoddesc;
64 /* structs ********************************************************************/
66 /* constant_classref **********************************************************/
68 typedef struct constant_classref {
69 void *pseudo_vftbl; /* for distinguishing it from classinfo */
70 classinfo *referer; /* class containing the reference */
71 utf *name; /* name of the class refered to */
74 /* classref_or_classinfo ******************************************************/
77 constant_classref *ref; /* a symbolic class reference */
78 classinfo *cls; /* an already loaded class */
79 void *any; /* used for general access (x != NULL,...) */
80 } classref_or_classinfo;
82 /* parseddesc *****************************************************************/
84 typedef union parseddesc {
85 typedesc *fd; /* parsed field descriptor */
86 methoddesc *md; /* parsed method descriptor */
87 void *any; /* used for simple test against NULL */
90 /* constant_FMIref ************************************************************/
92 typedef struct { /* Fieldref, Methodref and InterfaceMethodref */
93 classinfo *class; /* class containing this field/method/intfmeth. */ /* XXX remove */
94 constant_classref *classref; /* class containing this field/meth./intfm. */
95 utf *name; /* field/method/interfacemethod name */
96 utf *descriptor; /* field/method/intfmeth. type descriptor string */
97 parseddesc parseddesc; /* parsed descriptor */
100 /* macros *********************************************************************/
102 /* a value that never occurrs in classinfo.header.vftbl */
103 #define CLASSREF_PSEUDO_VFTBL ((void *) 1)
105 /* macro for testing if a classref_or_classinfo is a classref */
106 /* `reforinfo` is only evaluated once */
107 #define IS_CLASSREF(reforinfo) \
108 ((reforinfo).ref->pseudo_vftbl == CLASSREF_PSEUDO_VFTBL)
110 /* macro for casting a classref/classinfo * to a classref_or_classinfo */
111 #define CLASSREF_OR_CLASSINFO(value) \
112 (*((classref_or_classinfo *)(&(value))))
114 /* initialize a constant_classref with referer `ref` and name `classname` */
115 #define CLASSREF_INIT(c,ref,classname) \
116 do { (c).pseudo_vftbl = CLASSREF_PSEUDO_VFTBL; \
117 (c).referer = (ref); \
118 (c).name = (classname); } while (0)
120 #endif /* _REFERENCES_H_ */
123 * These are local overrides for various environment variables in Emacs.
124 * Please do not remove this and leave it at the end of the file, where
125 * Emacs will automagically detect them.
126 * ---------------------------------------------------------------------
129 * indent-tabs-mode: t
133 * vim:noexpandtab:sw=4:ts=4: