5fdd83dc27
* harbour/source/rdd/dbcmd.c
! update NetErr() in ordListAdd()
If you know other then dbCreate()/dbUseArea() functions which reset
NetErr() flag in Clipper then please report them. We will have to
update our functions (dbSetIndex() is a wrapper to ordListAdd() so
you nay not report it ;))
* harbour/source/rtl/gtstd/gtstd.c
* do not stop Harbour process when controlling terminal has TOSTOP
attribute set (as long as no direct out is done)
* harbour/source/rtl/tclass.prg
* harbour/source/rtl/terror.prg
* harbour/source/rtl/tobject.prg
* set valid class function
* harbour/source/rtl/tmenuitm.prg
* harbour/source/rtl/tpopup.prg
! I think that no one has been checking what these code does for
very long time. Both MenuItem() and PopUp() on each call tries
to create new _CLASSES_ called "MenuItem" and "PopUpMenu"
instead of creating only new instance of these classes (new objects)
Updated to use standard hbclass.ch commands. If possible try
to not create classes manually and always use documented commands
from hbclass.ch
467 lines
16 KiB
Plaintext
467 lines
16 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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* Base Class for internal handling of class creation
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*
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* Copyright 1999 Antonio Linares <alinares@fivetech.com>
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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 J. Lefebvre <jfl@mafact.com> & RA. Cuylen <rac@mafact.com>
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* Multiple inheritance
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* Support shared class DATA
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* scoping (hidden, protected, readOnly)
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* Use of __cls_param function to allow multiple superclass declaration
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* Suppress of SetType and SetInit not more nedded
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* Delegation and forwarding
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* Preparing the InitClass class method (not working !! )
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*
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* Copyright 1999 Eddie Runia <eddie@runia.com>
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* Support for inheritance
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* Support for default DATA values
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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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// Harbour Class HBClass to build classes
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#include "common.ch"
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#include "hboo.ch"
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REQUEST HBObject
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FUNCTION HBClass()
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STATIC s_hClass /* NOTE: Automatically default to NIL */
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IF s_hClass == NIL
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s_hClass := __clsNew( "HBCLASS", 16,, @HBClass() )
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/* s_hClass := __clsNew( "HBCLASS", 17,, @HBClass()) */
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__clsAddMsg( s_hClass, "New" , @New() , HB_OO_MSG_METHOD )
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__clsAddMsg( s_hClass, "Create" , @Create() , HB_OO_MSG_METHOD )
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__clsAddMsg( s_hClass, "AddData" , @AddData() , HB_OO_MSG_METHOD )
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__clsAddMsg( s_hClass, "AddMultiData" , @AddMultiData() , HB_OO_MSG_METHOD )
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__clsAddMsg( s_hClass, "AddClassData" , @AddClassData() , HB_OO_MSG_METHOD )
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__clsAddMsg( s_hClass, "AddMultiClsData", @AddMultiClsData(), HB_OO_MSG_METHOD )
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__clsAddMsg( s_hClass, "AddInline" , @AddInline() , HB_OO_MSG_METHOD )
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__clsAddMsg( s_hClass, "AddMethod" , @AddMethod() , HB_OO_MSG_METHOD )
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__clsAddMsg( s_hClass, "AddClsMethod" , @AddClsMethod() , HB_OO_MSG_METHOD )
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__clsAddMsg( s_hClass, "AddVirtual" , @AddVirtual() , HB_OO_MSG_METHOD )
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__clsAddMsg( s_hClass, "AddDelegate" , @AddDelegate() , HB_OO_MSG_METHOD )
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__clsAddMsg( s_hClass, "AddFriendFunc" , @AddFriendFunc() , HB_OO_MSG_METHOD )
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__clsAddMsg( s_hClass, "AddFriendClass" , @AddFriendClass() , HB_OO_MSG_METHOD )
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__clsAddMsg( s_hClass, "Instance" , @Instance() , HB_OO_MSG_METHOD )
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__clsAddMsg( s_hClass, "SetOnError" , @SetOnError() , HB_OO_MSG_METHOD )
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__clsAddMsg( s_hClass, "SetDestructor" , @SetDestructor() , HB_OO_MSG_METHOD )
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__clsAddMsg( s_hClass, "InitClass" , @InitClass() , HB_OO_MSG_METHOD )
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__clsAddMsg( s_hClass, "cSuper" , {| Self | iif( Empty( ::asSuper ), NIL, ::asSuper[ 1 ]:name ) }, HB_OO_MSG_INLINE )
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__clsAddMsg( s_hClass, "hClass" , 1, HB_OO_MSG_ACCESS )
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__clsAddMsg( s_hClass, "_hClass" , 1, HB_OO_MSG_ASSIGN )
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__clsAddMsg( s_hClass, "cName" , 2, HB_OO_MSG_ACCESS )
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__clsAddMsg( s_hClass, "_cName" , 2, HB_OO_MSG_ASSIGN )
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__clsAddMsg( s_hClass, "aDatas" , 3, HB_OO_MSG_ACCESS )
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__clsAddMsg( s_hClass, "_aDatas" , 3, HB_OO_MSG_ASSIGN )
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__clsAddMsg( s_hClass, "aMethods" , 4, HB_OO_MSG_ACCESS )
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__clsAddMsg( s_hClass, "_aMethods" , 4, HB_OO_MSG_ASSIGN )
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__clsAddMsg( s_hClass, "aClsDatas" , 5, HB_OO_MSG_ACCESS )
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__clsAddMsg( s_hClass, "_aClsDatas" , 5, HB_OO_MSG_ASSIGN )
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__clsAddMsg( s_hClass, "aClsMethods" , 6, HB_OO_MSG_ACCESS )
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__clsAddMsg( s_hClass, "_aClsMethods" , 6, HB_OO_MSG_ASSIGN )
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__clsAddMsg( s_hClass, "aInlines" , 7, HB_OO_MSG_ACCESS )
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__clsAddMsg( s_hClass, "_aInlines" , 7, HB_OO_MSG_ASSIGN )
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__clsAddMsg( s_hClass, "aVirtuals" , 8, HB_OO_MSG_ACCESS )
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__clsAddMsg( s_hClass, "_aVirtuals" , 8, HB_OO_MSG_ASSIGN )
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__clsAddMsg( s_hClass, "aDelegates" , 9, HB_OO_MSG_ACCESS )
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__clsAddMsg( s_hClass, "_aDelegates" , 9, HB_OO_MSG_ASSIGN )
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__clsAddMsg( s_hClass, "asSuper" , 10, HB_OO_MSG_ACCESS )
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__clsAddMsg( s_hClass, "_asSuper" , 10, HB_OO_MSG_ASSIGN )
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__clsAddMsg( s_hClass, "nOnError" , 11, HB_OO_MSG_ACCESS )
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__clsAddMsg( s_hClass, "_nOnError" , 11, HB_OO_MSG_ASSIGN )
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__clsAddMsg( s_hClass, "nDestructor" , 12, HB_OO_MSG_ACCESS )
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__clsAddMsg( s_hClass, "_nDestructor" , 12, HB_OO_MSG_ASSIGN )
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__clsAddMsg( s_hClass, "lModFriendly" , 13, HB_OO_MSG_ACCESS )
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__clsAddMsg( s_hClass, "_lModFriendly" , 13, HB_OO_MSG_ASSIGN )
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__clsAddMsg( s_hClass, "asFriendClass" , 14, HB_OO_MSG_ACCESS )
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__clsAddMsg( s_hClass, "_asFriendClass" , 14, HB_OO_MSG_ASSIGN )
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__clsAddMsg( s_hClass, "asFriendFunc" , 15, HB_OO_MSG_ACCESS )
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__clsAddMsg( s_hClass, "_asFriendFunc" , 15, HB_OO_MSG_ASSIGN )
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__clsAddMsg( s_hClass, "sClassFunc" , 16, HB_OO_MSG_ACCESS )
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__clsAddMsg( s_hClass, "_sClassFunc" , 16, HB_OO_MSG_ASSIGN )
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/* __clsAddMsg( s_hClass, "class" , 17, HB_OO_MSG_ACCESS )
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__clsAddMsg( s_hClass, "_class" , 17, HB_OO_MSG_ASSIGN ) */
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ENDIF
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RETURN __clsInst( s_hClass )
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//----------------------------------------------------------------------------//
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// xSuper is used here as the new preprocessor file (HBCLASS.CH) send here
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// always an array (if no superclass, this will be an empty one)
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// In case of direct class creation (without the help of preprocessor) xSuper can be
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// either NIL or contain the name of the superclass.
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STATIC FUNCTION New( cClassName, xSuper, sClassFunc, lModuleFriendly )
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LOCAL Self := QSelf()
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LOCAL nSuper, i
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DEFAULT lModuleFriendly TO .F.
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IF Empty( xSuper )
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::asSuper := {}
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ELSEIF VALTYPE( xSuper ) == "C"
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::asSuper := { __DynsN2Sym( xSuper ) }
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ELSEIF VALTYPE( xSuper ) == "S"
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::asSuper := { xSuper }
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ELSEIF VALTYPE( xSuper ) == "A"
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::asSuper := {}
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nSuper := Len( xSuper )
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FOR i := 1 TO nSuper
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IF !Empty( xSuper[ i ] )
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IF VALTYPE( xSuper[ i ] ) == "C"
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AADD( ::asSuper, __DynsN2Sym( xSuper[ i ] ) )
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ELSEIF VALTYPE( xSuper[ i ] ) == "S"
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AADD( ::asSuper, xSuper[ i ] )
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ENDIF
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ENDIF
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NEXT
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ENDIF
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::cName := Upper( cClassName )
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::sClassFunc := sClassFunc
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::lModFriendly := lModuleFriendly
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::aDatas := {}
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::aMethods := {}
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::aClsDatas := {}
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::aClsMethods := {}
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::aInlines := {}
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::aVirtuals := {}
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::aDelegates := {}
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::asFriendClass := {}
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::asFriendFunc := {}
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RETURN QSelf()
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//----------------------------------------------------------------------------//
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/* STATIC PROCEDURE Create(MetaClass) */
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STATIC PROCEDURE Create()
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LOCAL Self := QSelf()
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LOCAL n
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LOCAL nLen
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LOCAL nLenDatas := Len( ::aDatas ) //Datas local to the class !!
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LOCAL nClassBegin
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LOCAL hClass
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LOCAL ahSuper := {}
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/* Self:Class := MetaClass */
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nLen := Len( ::asSuper )
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FOR n := 1 TO nLen
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hClass := __clsInstSuper( ::asSuper[ n ] ) // Super handle available
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IF hClass != 0
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AAdd( ahSuper, hClass )
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ENDIF
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NEXT
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hClass := __clsNew( ::cName, nLenDatas, ahSuper, ::sClassFunc, ::lModFriendly )
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::hClass := hClass
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IF !EMPTY( ahSuper )
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IF ahSuper[ 1 ] != 0
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__clsAddMsg( hClass, "SUPER" , 0, HB_OO_MSG_SUPER, ahSuper[ 1 ], HB_OO_CLSTP_EXPORTED )
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__clsAddMsg( hClass, "__SUPER", 0, HB_OO_MSG_SUPER, ahSuper[ 1 ], HB_OO_CLSTP_EXPORTED )
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ENDIF
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ENDIF
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__clsAddMsg( hClass, "REALCLASS" , 0, HB_OO_MSG_REALCLASS, 0 , HB_OO_CLSTP_EXPORTED )
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// We will work here on the MetaClass object to add the Class Method
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// as needed
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//nLen := Len( ::aClsMethods )
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//FOR n := 1 TO nLen
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// // do it
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//NEXT
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////
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//Local message...
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FOR n := 1 TO nLenDatas
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__clsAddMsg( hClass, ::aDatas[ n ][ HB_OO_DATA_SYMBOL ] , n, ;
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HB_OO_MSG_ACCESS, ::aDatas[ n ][ HB_OO_DATA_VALUE ], ::aDatas[ n ][ HB_OO_DATA_SCOPE ] )
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__clsAddMsg( hClass, "_" + ::aDatas[ n ][ HB_OO_DATA_SYMBOL ] , n, ;
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HB_OO_MSG_ASSIGN, ::aDatas[ n ][ HB_OO_DATA_TYPE ] , ::aDatas[ n ][ HB_OO_DATA_SCOPE ] )
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NEXT
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nLen := Len( ::aMethods )
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FOR n := 1 TO nLen
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__clsAddMsg( hClass, ::aMethods[ n ][ HB_OO_MTHD_SYMBOL ], ::aMethods[ n ][ HB_OO_MTHD_PFUNCTION ],;
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HB_OO_MSG_METHOD, NIL, ::aMethods[ n ][ HB_OO_MTHD_SCOPE ] )
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NEXT
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nLen := Len( ::aClsDatas )
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nClassBegin := __CLS_CNTCLSDATA( hClass )
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FOR n := 1 TO nLen
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__clsAddMsg( hClass, ::aClsDatas[ n ][ HB_OO_CLSD_SYMBOL ] , n + nClassBegin,;
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HB_OO_MSG_CLSACCESS, ::aClsDatas[ n ][ HB_OO_CLSD_VALUE ], ::aClsDatas[ n ][ HB_OO_CLSD_SCOPE ] )
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__clsAddMsg( hClass, "_" + ::aClsDatas[ n ][ HB_OO_CLSD_SYMBOL ], n + nClassBegin,;
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HB_OO_MSG_CLSASSIGN, , ::aClsDatas[ n ][ HB_OO_CLSD_SCOPE ] )
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NEXT
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nLen := Len( ::aInlines )
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FOR n := 1 TO nLen
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__clsAddMsg( hClass, ::aInlines[ n ][ HB_OO_MTHD_SYMBOL ], ::aInlines[ n ][ HB_OO_MTHD_PFUNCTION ],;
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HB_OO_MSG_INLINE, NIL, ::aInlines[ n ][ HB_OO_MTHD_SCOPE ] )
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NEXT
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nLen := Len( ::aVirtuals )
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FOR n := 1 TO nLen
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__clsAddMsg( hClass, ::aVirtuals[ n ], n, HB_OO_MSG_VIRTUAL )
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NEXT
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IF ::nOnError != NIL
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__clsAddMsg( hClass, "__OnError", ::nOnError, HB_OO_MSG_ONERROR )
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ENDIF
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IF ::nDestructor != NIL
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__clsAddMsg( hClass, "__Destructor", ::nDestructor, HB_OO_MSG_DESTRUCTOR )
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ENDIF
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//Friend Classes
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nLen := Len( ::asFriendClass )
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FOR n := 1 TO nLen
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__clsAddFriend( ::hClass, ::asFriendClass[ n ] )
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NEXT
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//Friend Functions
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nLen := Len( ::asFriendFunc )
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FOR n := 1 TO nLen
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__clsAddFriend( ::hClass, ::asFriendFunc[ n ] )
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NEXT
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RETURN
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//----------------------------------------------------------------------------//
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STATIC FUNCTION Instance()
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LOCAL Self := QSelf()
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Local oInstance := __clsInst( ::hClass )
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/*oInstance:Class := Self:Class*/
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RETURN oInstance
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//----------------------------------------------------------------------------//
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STATIC PROCEDURE AddData( cData, xInit, cType, nScope, lNoinit )
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DEFAULT lNoInit TO .F.
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DEFAULT nScope TO HB_OO_CLSTP_EXPORTED
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// Default Init for Logical and numeric
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IF ! lNoInit .AND. cType != NIL .AND. xInit == NIL
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IF Upper( Left( cType, 1 ) ) == "L"
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xInit := .F.
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ELSEIF Upper( Left( cType, 1 ) ) $ "NI" /* Numeric Int */
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xInit := 0
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ENDIF
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ENDIF
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AAdd( QSelf():aDatas, { cData, xInit, cType, nScope } )
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RETURN
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//----------------------------------------------------------------------------//
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STATIC PROCEDURE AddMultiData( cType, xInit, nScope, aData, lNoInit )
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LOCAL i
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LOCAL nParam := Len( aData )
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FOR i := 1 TO nParam
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IF VALTYPE( aData[ i ] ) == "C"
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QSelf():AddData( aData[ i ], xInit, cType, nScope, lNoInit )
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ENDIF
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NEXT
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RETURN
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//----------------------------------------------------------------------------//
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STATIC PROCEDURE AddClassData( cData, xInit, cType, nScope, lNoInit )
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LOCAL c
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DEFAULT lNoInit TO .F.
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// Default Init for Logical and numeric
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IF ! lNoInit .AND. cType != NIL .AND. xInit == NIL
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c := Upper( Left( cType, 1 ) )
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IF c == "L" /* Logical */
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xInit := .F.
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ELSEIF c $ "NI" /* Numeric or Integer */
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xInit := 0
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ENDIF
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ENDIF
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AAdd( QSelf():aClsDatas, { cData, xInit, cType, nScope } )
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RETURN
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//----------------------------------------------------------------------------//
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STATIC PROCEDURE AddMultiClsData( cType, xInit, nScope, aData, lNoInit )
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LOCAL i
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LOCAL nParam := Len( aData )
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FOR i := 1 TO nParam
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IF VALTYPE( aData[ i ] ) == "C"
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QSelf():AddClassData( aData[ i ], xInit, cType, nScope, lNoInit )
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ENDIF
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NEXT
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RETURN
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//----------------------------------------------------------------------------//
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STATIC PROCEDURE AddInline( cMethod, bCode, nScope )
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DEFAULT nScope TO HB_OO_CLSTP_EXPORTED
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AAdd( QSelf():aInlines, { cMethod, bCode, nScope } )
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RETURN
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//----------------------------------------------------------------------------//
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STATIC PROCEDURE AddMethod( cMethod, nFuncPtr, nScope )
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DEFAULT nScope TO HB_OO_CLSTP_EXPORTED
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AAdd( QSelf():aMethods, { cMethod, nFuncPtr, nScope } )
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RETURN
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//----------------------------------------------------------------------------//
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STATIC PROCEDURE AddClsMethod( cMethod, nFuncPtr, nScope )
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AAdd( QSelf():aClsMethods, { cMethod, nFuncPtr, nScope } )
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RETURN
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//----------------------------------------------------------------------------//
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STATIC PROCEDURE AddVirtual( cMethod )
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AAdd( QSelf():aVirtuals, cMethod )
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RETURN
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STATIC PROCEDURE AddDelegate( xMethod, nAccScope, nAsgScope, cType, cDelegMsg, cDelegClass )
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LOCAL i
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IF VALTYPE( xMethod ) == "C"
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AAdd( QSelf():aDelegates, { xMethod, nAccScope, nAsgScope, cType, cDelegMsg, cDelegClass } )
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ELSEIF VALTYPE( xMethod ) == "A"
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FOR i := 1 TO LEN( xMethod )
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AAdd( QSelf():aDelegates, { xMethod[ i ], nAccScope, nAsgScope, cType, cDelegMsg, cDelegClass } )
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NEXT
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ENDIF
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RETURN
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//----------------------------------------------------------------------------//
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STATIC PROCEDURE AddFriendClass( ... )
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LOCAL Self := QSelf()
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AEval( HB_AParams(), { | sClass | AAdd( ::asFriendClass, sClass ) } )
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RETURN
|
|
|
|
//----------------------------------------------------------------------------//
|
|
|
|
STATIC PROCEDURE AddFriendFunc( ... )
|
|
|
|
LOCAL Self := QSelf()
|
|
|
|
AEval( HB_AParams(), { | sFunc | AAdd( ::asFriendFunc, sFunc ) } )
|
|
|
|
RETURN
|
|
|
|
//----------------------------------------------------------------------------//
|
|
|
|
STATIC PROCEDURE SetOnError( nFuncPtr )
|
|
|
|
QSelf():nOnError := nFuncPtr
|
|
|
|
RETURN
|
|
|
|
STATIC PROCEDURE SetDestructor( nFuncPtr )
|
|
|
|
QSelf():nDestructor := nFuncPtr
|
|
|
|
RETURN
|
|
|
|
//----------------------------------------------------------------------------//
|
|
|
|
STATIC FUNCTION InitClass()
|
|
|
|
RETURN QSelf()
|
|
|
|
//----------------------------------------------------------------------------//
|