f2b0c25e87
* harbour/include/hbclass.ch
+ added new commands for scalar classes:
ASSOCIATE CLASS <ClassName> WITH TYPE
ARRAY|BLOCK|CHARACTER|DATE|HASH|LOGICAL|NIL|
NUMERIC|POINTER|SYMBOL
ENABLE CLASS TYPE ALL
ENABLE TYPE CLASS ARRAY|BLOCK|CHARACTER|DATE|HASH|LOGICAL|NIL|
NUMERIC|POINTER|SYMBOL
Please remeber that:
ENABLE CLASS TYPE ALL
and:
ENABLE TYPE CLASS ...
can be used in any place of code - this commands are translated to
REQUEST HB<TYPENAME>
so are not executed
* harbour/source/vm/classes.c
+ added __clsAssocType( <hClass>, <cType> ) => <lOK>
* harbour/common.mak
* harbour/source/rtl/tscalar.prg
* harbour/source/rtl/Makefile
+ harbour/source/rtl/tscalars.c
+ harbour/source/rtl/tscalard.c
+ harbour/source/rtl/tscalarh.c
+ harbour/source/rtl/tscalarl.c
+ harbour/source/rtl/tscalarp.c
+ harbour/source/rtl/tscalara.c
+ harbour/source/rtl/tscalaru.c
+ harbour/source/rtl/tscalarb.c
+ harbour/source/rtl/tscalarn.c
+ harbour/source/rtl/tscalarc.c
+ added scalar classes for basic types,
Now it's possible to define messages also for basic item types.
It's even possible to overload some not defined in HVM operators,
f.e. in this example we overload operator "+" so it makes
AADD( <aValue>, <xValue> )
for code like <aValue> + <xValue>:
#include "hbclass.ch"
PROC MAIN()
LOCAL a:={}
ASSOCIATE CLASS MyArray WITH TYPE ARRAY
a := a + "elem1"
a += "elem2"
a := a + "elem3"
a += "elem4"
? a:asString, a:isScalar
AEVAL(a,{|x,i|QOUT(i,x)})
RETURN
CREATE CLASS MyArray INHERIT __HBArray
OPERATOR "+" ARG xValue INLINE AADD( Self, xValue ), Self
ENDCLASS
Operators which have default actions for given types defined in HVM
cannot be overloaded.
74 lines
2.5 KiB
C
74 lines
2.5 KiB
C
/*
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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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* NIL scalar class function
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*
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* Copyright 2007 Przemyslaw Czerpak <druzus / at / priv.onet.pl>
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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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#include "hbapi.h"
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#include "hbvm.h"
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HB_FUNC_EXTERN( __HBNIL );
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HB_FUNC( HBNIL )
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{
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HB_FUNC_EXEC( __HBNIL );
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if( hb_vmRequestQuery() == 0 )
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{
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PHB_ITEM pItem = hb_param( -1, HB_IT_ANY );
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if( HB_IS_OBJECT( pItem ) )
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{
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hb_vmPushDynSym( hb_dynsymGetCase( "NEW" ) );
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hb_vmPush( pItem );
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hb_vmSend( 0 );
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}
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}
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}
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