gambas-source-code/main/gbx/gbx_variant.h

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/***************************************************************************
gbx_variant.h
(c) 2000-2009 Benoît Minisini <gambas@users.sourceforge.net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
***************************************************************************/
#ifndef __VARIANT_H
#define __VARIANT_H
#include "gbx_type.h"
#include "gbx_string.h"
#include "gbx_object.h"
typedef
struct
{
TYPE type;
union {
char _boolean;
unsigned char _byte;
short _short;
int _integer;
int64_t _long;
float _single;
double _float;
GB_DATE_VALUE _date;
char *_string;
void *_object;
void *_pointer;
int64_t data;
}
value;
}
PACKED
VARIANT;
#define VARIANT_copy_value(_dst, _src) (_dst)->value.data = (_src)->value.data
static INLINE void VARIANT_undo(VALUE *val)
{
if (val->type == T_VARIANT)
VALUE_conv(val, val->_variant.vtype);
}
static INLINE void VARIANT_free(VARIANT *var)
{
if (var->type == T_STRING)
{
STRING_unref(&var->value._string);
}
else if (TYPE_is_object(var->type))
{
OBJECT_UNREF(var->value._object, "VARIANT_free");
}
}
static INLINE void VARIANT_keep(VARIANT *var)
{
if (var->type == T_STRING)
{
STRING_ref(var->value._string);
}
else if (TYPE_is_object(var->type))
{
OBJECT_REF(var->value._object, "VARIANT_keep");
}
}
static INLINE boolean VARIANT_is_null(VARIANT *var)
{
if (var->type == T_NULL)
return TRUE;
if (var->type == T_STRING && !var->value._string)
return TRUE;
if (TYPE_is_object(var->type) && !var->value._object)
return TRUE;
return FALSE;
}
static INLINE void VARIANT_clear(VARIANT *var)
{
VARIANT_free(var);
******** Merged /branches/64bits r918:1003 into /trunk [CONFIGURATION] * NEW: 64 bits port. [EXAMPLES] * BUG: Fixed the AnalogWatch example. [WIKI CGI SCRIPT] * NEW: Some little cosmetic changes. [INTERPRETER] * NEW: The extern function implementation has been redesigned and is now based on libffi, so that it works on 64 bits system. Because of a flaw in the compiler design, projects that use the Pointer datatype must be recompiled to be used on a 64 bits system. This flaw will be fixed in Gambas 3. * OPT: Put some tables into read-only memory. About 1000 bytes are saved for each running interpreter, except the first one. * BUG: Does not crash anymore if a component cannot be loaded. * NEW: Spanish translation updated. * NEW: A new interpreter API for returning a pointer. [COMPILER] * BUG: Correctly compiles LONG constants inside code. [GB.DEBUG] * BUG: Compiles and links the gb.debug components with the thread libraries. [GB.DB.SQLITE3] * BUG: Getting the primary index of a table without primary index is safe now. [GB.GTK] * BUG: Modified the GLib priority of watched descriptors, as the main loop could enter in a loop in which user interface events were not managed. * BUG: Message boxes use application title without crashing now. [GB.OPENGL] * BUG: Disable dead code. [GB.QT.EXT] * BUG: TextEdit.TextWidth and TextEdit.TextHeight were not declared as read-only properties. [GB.XML.XSLT] * BUG: XSLT class is now declared as being not creatable. git-svn-id: svn://localhost/gambas/trunk@1006 867c0c6c-44f3-4631-809d-bfa615b0a4ec
2008-01-17 22:39:26 +01:00
var->type = 0;
var->value.data = 0;
}
#endif