a35053003b
+ harbour/doc/destruct.txt
+ added description for object destructors in Harbour
* harbour/include/error.ch
+ added new error code EG_DESTRUCTOR
* harbour/source/lang/msgpl852.c
* harbour/source/lang/msgpliso.c
* harbour/source/lang/msgplmaz.c
* harbour/source/lang/msgplwin.c
* harbour/source/rtl/langapi.c
+ added desription for new error code - other language modules
have to be updated
* harbour/include/hbapi.h
+ added hb_gcRefCheck() and cover some hb_gc* functions by
_HB_API_INTERNAL_ macro
* harbour/source/vm/itemapi.c
! fixed possible RT error generation when some exception is active
* harbour/include/hbapicls.h
* harbour/include/hbclass.ch
* harbour/include/hboo.ch
* harbour/source/rtl/tclass.prg
* harbour/source/vm/arrays.c
* harbour/source/vm/classes.c
+ added support for object destructors
* harbour/source/vm/garbage.c
+ added support for object destructors
+ added logic to detect buggu .prg code which uses destructors
see doc/destruct.txt for more info.
It's also possible that this code will exploit some bugs
in other code which uses GC allocated memory blocks.
133 lines
5.3 KiB
Plaintext
133 lines
5.3 KiB
Plaintext
/*
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* $Id$
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*/
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/*
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* Harbour Project source code:
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* Header file for low-level object engine
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*
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* Copyright 1999-2001 Viktor Szakats <viktor.szakats@syenar.hu>
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* www - http://www.harbour-project.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307 USA (or visit the web site http://www.gnu.org/).
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*
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* As a special exception, the Harbour Project gives permission for
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* additional uses of the text contained in its release of Harbour.
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*
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* The exception is that, if you link the Harbour libraries with other
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* files to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public License.
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* Your use of that executable is in no way restricted on account of
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* linking the Harbour library code into it.
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*
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* This exception does not however invalidate any other reasons why
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* the executable file might be covered by the GNU General Public License.
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*
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* This exception applies only to the code released by the Harbour
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* Project under the name Harbour. If you copy code from other
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* Harbour Project or Free Software Foundation releases into a copy of
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* Harbour, as the General Public License permits, the exception does
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* not apply to the code that you add in this way. To avoid misleading
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* anyone as to the status of such modified files, you must delete
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* this exception notice from them.
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*
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* If you write modifications of your own for Harbour, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice.
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*
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*/
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/*
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* The following parts are Copyright of the individual authors.
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* www - http://www.harbour-project.org
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*
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* Copyright 2000 JF Lefebvre <jfl@mafact.com> and RA Cuylen <rac@mafact.com>
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* Many enhancements (scopes, class methods)
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*
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* See doc/license.txt for licensing terms.
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*
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*/
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/* NOTE: This file is also used by C code. */
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#ifndef HB_OO_CH_
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#define HB_OO_CH_
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// Used by ObjFunc.prg (__objGetMsgList) and Classes.c (hb___msgClsSel())
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#define HB_MSGLISTALL 0
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#define HB_MSGLISTCLASS 1
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#define HB_MSGLISTPURE 2
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/* Method or Data attribute (nScope)*/
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#define HB_OO_CLSTP_EXPORTED 1 /* No comment, default */
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#define HB_OO_CLSTP_PROTECTED 2 /* Only usable from one of the object's method (even sublclassed object) */
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#define HB_OO_CLSTP_HIDDEN 4 /* Only usable from one of the object's method (and not from sublclassed one) */
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#define HB_OO_CLSTP_CTOR 8 /* Constructor (Not yet used) */
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#define HB_OO_CLSTP_READONLY 16 /* No comment */
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#define HB_OO_CLSTP_SHARED 32 /* Allow a classvar (or classmethod) to be shared by all the subclasses.
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Not the default behaviour as each subclass will have its own copy by default. */
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#define HB_OO_CLSTP_CLASS 64 /* The related message is a superobject call, uidata is the superclass handle
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pInitValue contain one superclass object instance (absolutely needed for Inline msg and class data) */
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#define HB_OO_CLSTP_SUPER 128 /* The related message is inherited from a superclass */
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#define HB_OO_CLSTP_PERSIST 256 /* Message is persistent (PROPERTY) */
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#define HB_OO_CLSTP_NONVIRTUAL 512 /* Non Virtual message - should not be covered
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by subclass(es) messages when executed
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from a given class message */
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#define HB_OO_CLSTP_OVERLOADED 1024 /* message overload NONVIRTUAL one */
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/* Message types */
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#define HB_OO_MSG_METHOD 0
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#define HB_OO_MSG_DATA 1
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#define HB_OO_MSG_CLASSDATA 2
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#define HB_OO_MSG_INLINE 3
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#define HB_OO_MSG_VIRTUAL 4
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#define HB_OO_MSG_SUPER 5
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#define HB_OO_MSG_ONERROR 6
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#define HB_OO_MSG_CLSMTHD 7 /* for the future */
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#define HB_OO_MSG_ASSIGN 8
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#define HB_OO_MSG_ACCESS 9
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#define HB_OO_MSG_CLSASSIGN 10
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#define HB_OO_MSG_CLSACCESS 11
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#define HB_OO_MSG_REALCLASS 12
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#define HB_OO_MSG_DESTRUCTOR 13
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#define HB_OO_MSG_INITIALIZED 14
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/* Data */
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#define HB_OO_DATA_SYMBOL 1
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#define HB_OO_DATA_VALUE 2
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#define HB_OO_DATA_TYPE 3
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#define HB_OO_DATA_SCOPE 4
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#define HB_OO_DATA_PERSISTENT 5
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/* ClassData */
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#define HB_OO_CLSD_SYMBOL 1
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#define HB_OO_CLSD_VALUE 2
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#define HB_OO_CLSD_TYPE 3
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#define HB_OO_CLSD_SCOPE 4
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/* Method */
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#define HB_OO_MTHD_SYMBOL 1
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#define HB_OO_MTHD_PFUNCTION 2
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#define HB_OO_MTHD_SCOPE 3
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#define HB_OO_MTHD_PERSISTENT 4
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/* ClassMethod */ /* for the future */
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#define HB_OO_CLSM_SYMBOL 1
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#define HB_OO_CLSM_PFUNCTION 2
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#define HB_OO_CLSM_SCOPE 3
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#endif /* HB_OO_CH_ */
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