gambas-source-code/main/gbx/gbx_variant.h
Benoît Minisini 83d84d7ee5 [DEVELOPMENT ENVIRONMENT]
* NEW: Support for the Index class interface changes.
* BUG: CSV import does not crash anymore when the imported file size is 
  lower than 64K.
* BUG: Do not crash if a component is not installed.

[INTERPRETER]
* BUG: Error.Text does not split the error message and its argument in 
  debug mode.
* BUG: Fix many breaks in strict aliasing rules.

[SCRIPTER]
* BUG: Do not crash if a component is not installed.

[GB.DB]
* NEW: Better support for postgresql schemas.
* NEW: Connection.Quote() takes one more optional boolean argument that 
  tells if we want to quote a table name. In that case, schemas are taken 
  into account.
* NEW: Connection.FormatBlob() is a new function that returns a string that 
  can be used as a blob contents in a SQL expression.
* NEW: Index.Fields now returns a string array of index fields.
* NEW: Index.Add() second argument is now a string array of index fields.


git-svn-id: svn://localhost/gambas/trunk@2442 867c0c6c-44f3-4631-809d-bfa615b0a4ec
2009-11-28 01:22:00 +00:00

100 lines
2.2 KiB
C

/***************************************************************************
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 *_string;
void *_object;
int64_t data;
}
value;
}
VARIANT;
//#define VARIANT_copy_value(_dst, _src) (*((int64_t *)((_dst)->value)) = *((int64_t *)((_src)->value)))
#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);
var->type = 0;
var->value.data = 0;
}
#endif