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gambas-source-code/main/gbx/gbx_value.c
Benoît Minisini 8dc0172592 [INTERPRETER] 
* BUG: Fixed an optimization in variants that was not 64-bits aware.


git-svn-id: svn://localhost/gambas/trunk@1230 867c0c6c-44f3-4631-809d-bfa615b0a4ec
2008-03-23 00:51:50 +00:00

1208 lines
26 KiB
C
Raw Blame History

/***************************************************************************
value.c
Datatype management routines. Conversions between each Gambas datatype,
and conversions between Gambas datatypes and native datatypes.
(c) 2000-2007 Benoit 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 1, 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.
***************************************************************************/
#define __GBX_VALUE_C
#include <float.h>
#include <math.h>
#include <limits.h>
#include "gb_common.h"
#include "gb_common_case.h"
#include "gbx_math.h"
#include "gbx_type.h"
#include "gbx_array.h"
#include "gbx_string.h"
#include "gbx_number.h"
#include "gbx_object.h"
#include "gbx_variant.h"
#include "gbx_date.h"
#include "gbx_exec.h"
#include "gbx_local.h"
#include "gb_common_buffer.h"
#include "gbx_value.h"
static void VALUE_put(VALUE *value, void *addr, TYPE type)
{
static void *jump[16] = {
&&__VOID, &&__BOOLEAN, &&__BYTE, &&__SHORT, &&__INTEGER, &&__LONG, &&__SINGLE, &&__FLOAT, &&__DATE,
&&__STRING, &&__STRING, &&__VARIANT, &&__ARRAY, &&__FUNCTION, &&__CLASS, &&__NULL
};
VALUE_conv(value, type);
if (TYPE_is_object(type))
goto __OBJECT;
else
goto *jump[type];
__BOOLEAN:
*((unsigned char *)addr) = (value->_boolean.value != 0 ? 255 : 0);
return;
__BYTE:
*((unsigned char *)addr) = (unsigned char)(value->_byte.value);
return;
__SHORT:
*((short *)addr) = (short)(value->_short.value);
return;
__INTEGER:
*((int *)addr) = value->_integer.value;
return;
__LONG:
*((int64_t *)addr) = value->_long.value;
return;
__SINGLE:
*((float *)addr) = (float)value->_float.value;
return;
__FLOAT:
*((double *)addr) = value->_float.value;
return;
__DATE:
/* Inverted, if value ~= addr */
((int *)addr)[1] = value->_date.time;
((int *)addr)[0] = value->_date.date;
return;
/*__STRING:
((int *)addr)[0] = (int)(value->_string.addr + value->_string.start);
((int *)addr)[1] = value->_string.len;
return;*/
__OBJECT:
*((void **)addr) = value->_object.object;
return;
__VARIANT:
*((VARIANT *)addr) = *((VARIANT *)&value->_variant.vtype);
return;
__CLASS:
*((void **)addr) = value->_class.class;
return;
__VOID:
__ARRAY:
__FUNCTION:
__NULL:
__STRING:
ERROR_panic("Bad type (%d) for VALUE_put", type);
}
/* This function must keep the datatype, as it is used for initializing local variables */
void VALUE_default(VALUE *value, TYPE type)
{
static void *jump[16] = {
&&__VOID, &&__BOOLEAN, &&__BYTE, &&__SHORT, &&__INTEGER, &&__LONG, &&__SINGLE, &&__FLOAT, &&__DATE,
&&__STRING, &&__STRING, &&__VARIANT, &&__ARRAY, &&__FUNCTION, &&__CLASS, &&__NULL
};
value->type = type;
if (TYPE_is_object(type))
goto __OBJECT;
else
goto *jump[type];
__BOOLEAN:
__BYTE:
__SHORT:
__INTEGER:
value->_integer.value = 0;
return;
__LONG:
value->_long.value = 0;
return;
__SINGLE:
__FLOAT:
value->_float.value = 0;
return;
__STRING:
value->_string.addr = NULL;
value->_string.start = 0;
value->_string.len = 0;
return;
__VARIANT:
value->_variant.vtype = T_NULL;
return;
__DATE:
value->_date.date = 0;
value->_date.time = 0;
return;
__VOID:
return;
__OBJECT:
value->_object.class = (CLASS *)type;
value->_object.object = NULL;
return;
__ARRAY:
__FUNCTION:
__CLASS:
__NULL:
ERROR_panic("VALUE_default: Unknown default type");
}
void VALUE_convert(VALUE *value, TYPE type)
{
static const void *jump[16][16] =
{
/* void b c h i l g f d cs s v array func class n */
/* void */ { &&__OK, &&__NR, &&__NR, &&__NR, &&__NR, &&__NR, &&__NR, &&__NR, &&__NR, &&__NR, &&__NR, &&__NR, &&__NR, &&__NR, &&__NR, &&__NR, },
/* b */ { &&__N, &&__OK, &&__b2c, &&__b2h, &&__TYPE, &&__b2l, &&__b2f, &&__b2f, &&__N, &&__b2s, &&__b2s, &&__2v, &&__N, &&__N, &&__N, &&__N, },
/* c */ { &&__N, &&__c2b, &&__OK, &&__c2h, &&__TYPE, &&__c2l, &&__c2f, &&__c2f, &&__c2d, &&__c2s, &&__c2s, &&__2v, &&__N, &&__N, &&__N, &&__N, },
/* h */ { &&__N, &&__h2b, &&__h2c, &&__OK, &&__TYPE, &&__h2l, &&__h2f, &&__h2f, &&__h2d, &&__h2s, &&__h2s, &&__2v, &&__N, &&__N, &&__N, &&__N, },
/* i */ { &&__N, &&__i2b, &&__i2c, &&__i2h, &&__OK, &&__i2l, &&__i2f, &&__i2f, &&__i2d, &&__i2s, &&__i2s, &&__2v, &&__N, &&__N, &&__N, &&__N, },
/* l */ { &&__N, &&__l2b, &&__l2c, &&__l2h, &&__l2i, &&__OK, &&__l2g, &&__l2f, &&__l2d, &&__l2s, &&__l2s, &&__2v, &&__N, &&__N, &&__N, &&__N, },
/* g */ { &&__N, &&__f2b, &&__f2c, &&__f2h, &&__f2i, &&__f2l, &&__OK, &&__TYPE, &&__f2d, &&__f2s, &&__g2s, &&__2v, &&__N, &&__N, &&__N, &&__N, },
/* f */ { &&__N, &&__f2b, &&__f2c, &&__f2h, &&__f2i, &&__f2l, &&__f2g, &&__OK, &&__f2d, &&__f2s, &&__f2s, &&__2v, &&__N, &&__N, &&__N, &&__N, },
/* d */ { &&__N, &&__d2b, &&__d2c, &&__d2h, &&__d2i, &&__d2l, &&__d2f, &&__d2f, &&__OK, &&__d2s, &&__d2s, &&__2v, &&__N, &&__N, &&__N, &&__N, },
/* cs */ { &&__N, &&__s2b, &&__s2c, &&__s2h, &&__s2i, &&__s2l, &&__s2f, &&__s2f, &&__s2d, &&__OK, &&__OK, &&__s2v, &&__N, &&__N, &&__N, &&__N, },
/* s */ { &&__N, &&__s2b, &&__s2c, &&__s2h, &&__s2i, &&__s2l, &&__s2f, &&__s2f, &&__s2d, &&__OK, &&__OK, &&__s2v, &&__N, &&__N, &&__N, &&__N, },
/* v */ { &&__N, &&__v2, &&__v2, &&__v2, &&__v2, &&__v2, &&__v2, &&__v2, &&__v2, &&__v2, &&__v2, &&__OK, &&__N, &&__N, &&__v2, &&__v2, },
/* array */ { &&__N, &&__N, &&__N, &&__N, &&__N, &&__N, &&__N, &&__N, &&__N, &&__N, &&__N, &&__N, &&__OK, &&__N, &&__N, &&__N, },
/* func */ { &&__N, &&__N, &&__N, &&__N, &&__N, &&__N, &&__N, &&__N, &&__N, &&__N, &&__N, &&__N, &&__N, &&__OK, &&__N, &&__N, },
/* class */ { &&__N, &&__N, &&__N, &&__N, &&__N, &&__N, &&__N, &&__N, &&__N, &&__N, &&__N, &&__2v, &&__N, &&__N, &&__OK, &&__N, },
/* null */ { &&__N, &&__n2b, &&__N, &&__N, &&__N, &&__N, &&__N, &&__N, &&__n2d, &&__n2s, &&__n2s, &&__2v, &&__N, &&__N, &&__N, &&__OK, },
};
int len;
char *addr;
int index;
CLASS *class;
boolean test;
__CONV:
if ((type | value->type) >> 4)
goto __OBJECT;
else
goto *jump[value->type][type];
__c2b:
__h2b:
__i2b:
value->_integer.value = (value->_integer.value != 0) ? -1 : 0;
goto __TYPE;
__l2b:
value->_integer.value = (value->_long.value != 0) ? -1 : 0;
goto __TYPE;
__f2b:
value->_integer.value = (value->_float.value != 0) ? -1 : 0;
goto __TYPE;
__d2b:
value->_integer.value = (value->_date.date != 0 || value->_date.time != 0) ? -1 : 0;
goto __TYPE;
__b2c:
__h2c:
__i2c:
value->_integer.value = (unsigned char)value->_integer.value;
goto __TYPE;
__l2c:
value->_integer.value = (unsigned char)value->_long.value;
goto __TYPE;
__f2c:
value->_integer.value = (unsigned char)value->_float.value;
goto __TYPE;
__b2h:
__c2h:
__i2h:
value->_integer.value = (short)value->_integer.value;
goto __TYPE;
__l2h:
value->_integer.value = (short)value->_long.value;
goto __TYPE;
__f2h:
value->_integer.value = (short)value->_float.value;
goto __TYPE;
__l2i:
value->_integer.value = (int)value->_long.value;
goto __TYPE;
__f2i:
value->_integer.value = (int)value->_float.value;
goto __TYPE;
__b2l:
__c2l:
__h2l:
__i2l:
value->_long.value = (int64_t)value->_integer.value;
goto __TYPE;
__f2l:
value->_long.value = (int64_t)value->_float.value;
goto __TYPE;
__l2g:
value->_float.value = (float)value->_long.value;
if (!finite(value->_float.value))
THROW(E_OVERFLOW);
goto __TYPE;
__f2g:
value->_float.value = (float)value->_float.value;
if (!finite(value->_float.value))
THROW(E_OVERFLOW);
goto __TYPE;
__b2f:
__c2f:
__h2f:
__i2f:
value->_float.value = value->_integer.value;
goto __TYPE;
__l2f:
value->_float.value = value->_long.value;
goto __TYPE;
__c2d:
__h2d:
__i2d:
value->_date.date = Max(0, value->_integer.value);
value->_date.time = 0;
goto __TYPE;
__l2d:
if (value->_long.value < 0)
value->_date.date = 0;
else if (value->_long.value > INT_MAX)
value->_date.date = INT_MAX;
else
value->_date.date = (int)value->_long.value;
value->_date.time = 0;
goto __TYPE;
__f2d:
index = (int)fix(value->_float.value);
value->_date.time = (int)((value->_float.value - index) * 86400000.0 + 0.5);
value->_date.date = index;
goto __TYPE;
__d2c:
__d2h:
__d2i:
value->_integer.value = value->_date.date;
value->type = T_INTEGER;
goto *jump[T_INTEGER][type];
__d2l:
value->_long.value = value->_date.date;
goto __TYPE;
__d2f:
value->_float.value = (double)value->_date.date + (double)value->_date.time / 86400000.0;
goto __TYPE;
__b2s:
if (value->_boolean.value)
STRING_char_value(value, 'T');
else
STRING_void_value(value);
return;
__c2s:
__h2s:
__i2s:
/*#ifdef OS_OPENBSD
len = snprintf(COMMON_buffer, COMMON_BUF_MAX, "%d", value->_integer.value);
#else
len = sprintf(COMMON_buffer, "%d", value->_integer.value);
#endif
STRING_new_temp_value(value, COMMON_buffer, len);*/
NUMBER_int_to_string(value->_integer.value, 0, 10, value);
BORROW(value);
return;
__l2s:
/*#ifdef OS_OPENBSD
len = snprintf(COMMON_buffer, COMMON_BUF_MAX, "%" PRId64, value->_long.value);
#else
len = sprintf(COMMON_buffer, "%" PRId64, value->_long.value);
#endif
STRING_new_temp_value(value, COMMON_buffer, len);*/
NUMBER_int_to_string(value->_long.value, 0, 10, value);
BORROW(value);
return;
__g2s:
__f2s:
LOCAL_format_number(value->_float.value, LF_GENERAL_NUMBER, NULL, 0, &addr, &len, FALSE);
STRING_new_temp_value(value, addr, len);
BORROW(value);
return;
__d2s:
len = DATE_to_string(COMMON_buffer, value);
STRING_new_temp_value(value, COMMON_buffer, len);
BORROW(value);
return;
__s2b:
addr = value->_string.addr;
value->_integer.value = ((addr != NULL) && (value->_string.len != 0)) ? -1 : 0;
if (value->type == T_STRING)
STRING_unref(&addr);
goto __TYPE;
__s2c:
__s2h:
__s2i:
addr = value->type == T_STRING ? value->_string.addr : NULL;
if (NUMBER_from_string(NB_READ_INTEGER, value->_string.addr + value->_string.start, value->_string.len, value))
goto __N;
STRING_unref(&addr);
goto *jump[T_INTEGER][type];
__s2l:
addr = value->type == T_STRING ? value->_string.addr : NULL;
if (NUMBER_from_string(NB_READ_LONG, value->_string.addr + value->_string.start, value->_string.len, value))
goto __N;
STRING_unref(&addr);
return;
__s2f:
addr = value->type == T_STRING ? value->_string.addr : NULL;
if (NUMBER_from_string(NB_READ_FLOAT, value->_string.addr + value->_string.start, value->_string.len, value))
goto __N;
STRING_unref(&addr);
return;
__s2d:
addr = value->type == T_STRING ? value->_string.addr : NULL;
if (DATE_from_string(value->_string.addr + value->_string.start, value->_string.len, value, FALSE))
goto __N;
STRING_unref(&addr);
return;
__n2b:
value->_integer.value = 0;
goto __TYPE;
__n2d:
DATE_void_value(value);
return;
__n2s:
STRING_void_value(value);
return;
__v2:
/* ATTENTION !
VALUE_read sert normalement <20>lire un stockage en m<>oire.
On le d<>ourne ici pour convertir le variant.
Mais si le variant contient un T_STRING, <20> doit rester un T_STRING ! */
index = value->_variant.vtype;
if (index != T_NULL)
VALUE_read(value, &value->_variant.value, value->_variant.vtype);
value->type = index;
goto __CONV;
__s2v:
STRING_copy_from_value_temp(&addr, value);
if (addr != value->_string.addr)
{
STRING_ref(addr);
if (value->type == T_STRING)
STRING_unref(&value->_string.addr);
}
*((char **)value->_variant.value) = addr;
value->_variant.vtype = T_STRING;
goto __TYPE;
__2v:
/* VALUE_put ne fonctionne pas avec T_STRING ! */
if (value->type != T_NULL)
VALUE_put(value, &value->_variant.value, value->type);
value->_variant.vtype = value->type;
goto __TYPE;
__OBJECT:
if (!TYPE_is_object(type))
{
if (type == T_BOOLEAN)
{
test = (value->_object.object != NULL);
OBJECT_UNREF(&value->_object.object, "VALUE_convert");
value->_boolean.value = test ? -1 : 0;
goto __TYPE;
}
if (type == T_VARIANT)
goto __2v;
goto __N;
}
if (!TYPE_is_object(value->type))
{
if (value->type == T_NULL)
{
OBJECT_null(value, (CLASS *)type); /* marche aussi pour type = T_OBJECT */
goto __TYPE;
}
if (value->type == T_VARIANT)
goto __v2;
if (value->type == T_CLASS)
{
class = value->_class.class;
if (CLASS_is_virtual(class))
THROW(E_VIRTUAL);
CLASS_load(class);
if (class->auto_create)
value->_object.object = CLASS_auto_create(class, 0);
else
value->_object.object = class;
OBJECT_REF(value->_object.object, "VALUE_convert");
value->type = T_OBJECT;
/* on continue... */
}
else
goto __N;
}
if (value->_object.object == NULL)
goto __TYPE;
if (value->type == T_OBJECT)
{
/*if (value->_object.object == NULL)
goto __TYPE;*/
class = OBJECT_class(value->_object.object);
/* on continue */
}
else
class = value->_object.class;
if (CLASS_is_virtual(class))
THROW(E_VIRTUAL);
if (type == T_OBJECT)
goto __TYPE;
__RETRY:
if ((class == (CLASS *)type) || CLASS_inherits(class, (CLASS *)type))
goto __TYPE;
if (value->type != T_OBJECT && value->_object.object)
{
class = OBJECT_class(value->_object.object);
value->type = T_OBJECT;
goto __RETRY;
}
THROW(E_TYPE, TYPE_get_name(type), TYPE_get_name((TYPE)class));
__TYPE:
value->type = type;
__OK:
return;
__N:
THROW(E_TYPE, TYPE_get_name(type), TYPE_get_name(value->type));
__NR:
THROW(E_NRETURN);
}
void VALUE_write(VALUE *value, void *addr, TYPE type)
{
static void *jump[16] = {
&&__VOID, &&__BOOLEAN, &&__BYTE, &&__SHORT, &&__INTEGER, &&__LONG, &&__SINGLE, &&__FLOAT, &&__DATE,
&&__STRING, &&__STRING, &&__VARIANT, &&__ARRAY, &&__FUNCTION, &&__CLASS, &&__NULL
};
char *str;
__CONV:
if (TYPE_is_object(type))
goto __OBJECT;
else
goto *jump[type];
__BOOLEAN:
VALUE_conv(value, type);
*((unsigned char *)addr) = (value->_boolean.value != 0 ? 255 : 0);
return;
__BYTE:
VALUE_conv(value, type);
*((unsigned char *)addr) = (unsigned char)(value->_byte.value);
return;
__SHORT:
VALUE_conv(value, type);
*((short *)addr) = (short)(value->_short.value);
return;
__INTEGER:
VALUE_conv(value, type);
*((int *)addr) = value->_integer.value;
return;
__LONG:
VALUE_conv(value, type);
*((int64_t *)addr) = value->_long.value;
return;
__SINGLE:
VALUE_conv(value, type);
*((float *)addr) = (float)value->_float.value;
return;
__FLOAT:
VALUE_conv(value, type);
*((double *)addr) = value->_float.value;
return;
__DATE:
VALUE_conv(value, type);
((int *)addr)[0] = value->_date.date;
((int *)addr)[1] = value->_date.time;
return;
__STRING:
/* Il faut faire l'affectation en deux temps au cas o
value->_string.addr == *addr ! */
VALUE_conv(value, type);
STRING_copy_from_value_temp(&str, value);
STRING_ref(str);
STRING_unref((char **)addr);
*((char **)addr) = str;
return;
__OBJECT:
VALUE_conv(value, type);
OBJECT_REF(value->_object.object, "VALUE_write");
OBJECT_UNREF(((void **)addr), "VALUE_write");
*((void **)addr) = value->_object.object;
return;
__CLASS:
VALUE_conv(value, type);
OBJECT_REF(value->_class.class, "VALUE_write");
OBJECT_UNREF(((void **)addr), "VALUE_write");
*((void **)addr) = value->_class.class;
return;
__VARIANT:
VARIANT_undo(value);
type = value->type;
if (type == T_CSTRING)
type = T_STRING;
VARIANT_clear((VARIANT *)addr);
((VARIANT *)addr)->type = type;
/* Et si type ne fait pas partie des types valides pour cette fonction ?? */
if (type == T_NULL)
return;
addr = ((VARIANT *)addr)->value;
/*goto *jump[Min(T_OBJECT, type)];*/
goto __CONV;
__VOID:
__ARRAY:
__FUNCTION:
__NULL:
ERROR_panic("Bad type (%d) for VALUE_write", type);
}
void VALUE_read(VALUE *value, void *addr, TYPE type)
{
static void *jump[16] = {
&&__VOID, &&__BOOLEAN, &&__BYTE, &&__SHORT, &&__INTEGER, &&__LONG, &&__SINGLE, &&__FLOAT, &&__DATE,
&&__STRING, &&__CSTRING, &&__VARIANT, &&__ARRAY, &&__FUNCTION, &&__CLASS, &&__NULL
};
char *str;
value->type = type;
if (TYPE_is_object(type))
goto __OBJECT;
else
goto *jump[type];
__BOOLEAN:
value->_boolean.value = (*((unsigned char *)addr) != 0) ? (-1) : 0;
return;
__BYTE:
value->_byte.value = *((unsigned char *)addr);
return;
__SHORT:
value->_short.value = *((short *)addr);
return;
__INTEGER:
value->_integer.value = *((int *)addr);
return;
__LONG:
value->_long.value = *((int64_t *)addr);
return;
__SINGLE:
value->_single.value = *((float *)addr);
return;
__FLOAT:
value->_float.value = *((double *)addr);
return;
__DATE:
value->_date.date = ((int *)addr)[0];
value->_date.time = ((int *)addr)[1];
return;
__STRING:
str = *((char **)addr);
value->type = T_STRING;
value->_string.addr = str;
value->_string.start = 0;
/*value->_string.len = (str == NULL) ? 0 : strlen(str);*/
value->_string.len = STRING_length(str);
return;
__CSTRING:
str = *((char **)addr);
value->type = T_CSTRING;
value->_string.addr = str;
value->_string.start = 0;
value->_string.len = (str == NULL) ? 0 : strlen(str);
/*value->_string.len = STRING_length(str);*/
return;
__OBJECT:
value->_object.object = *((void **)addr);
return;
__VARIANT:
value->_variant.type = T_VARIANT;
value->_variant.vtype = ((VARIANT *)addr)->type;
/*if (value->_variant.vtype == T_STRING)
value->_variant.vtype = T_STRING;
else*/ if (value->_variant.vtype == T_VOID)
value->_variant.vtype = T_NULL;
VARIANT_copy_value(&value->_variant, ((VARIANT *)addr));
return;
__CLASS:
value->_class.class = *((void **)addr);
value->_class.super = NULL;
return;
__VOID:
__ARRAY:
__FUNCTION:
__NULL:
ERROR_panic("Bad type (%d) for VALUE_read", type);
}
void VALUE_free(void *addr, TYPE type)
{
if (type == T_STRING)
{
STRING_unref((char **)addr);
*((char **)addr) = NULL;
}
else if (TYPE_is_object(type))
{
OBJECT_unref((void **)addr);
*((void **)addr) = NULL;
}
else if (type == T_VARIANT)
{
VARIANT_free((VARIANT *)addr);
((VARIANT *)addr)->type = T_NULL;
}
}
void VALUE_to_string(VALUE *value, char **addr, int *len)
{
static void *jump[16] = {
&&__VOID, &&__BOOLEAN, &&__BYTE, &&__SHORT, &&__INTEGER, &&__LONG, &&__SINGLE, &&__FLOAT, &&__DATE,
&&__STRING, &&__STRING, &&__VARIANT, &&__ARRAY, &&__FUNCTION, &&__CLASS, &&__NULL
};
__CONV:
if (TYPE_is_object(value->type))
goto __OBJECT;
else
goto *jump[value->type];
__NULL:
*addr = ""; /* Pour <20>re coh<6F>ent avec print "" puisque Null == "" */
*len = 0;
return;
__BOOLEAN:
if (value->_boolean.value)
{
*addr = "True";
*len = 4;
}
else
{
*addr = "False";
*len = 5;
}
return;
__BYTE:
__SHORT:
__INTEGER:
#ifdef OS_OPENBSD
*len = snprintf(COMMON_buffer, COMMON_BUF_MAX, "%d", value->_integer.value);
#else
*len = sprintf(COMMON_buffer, "%d", value->_integer.value);
#endif
*addr = COMMON_buffer;
return;
__LONG:
#ifdef OS_OPENBSD
*len = snprintf(COMMON_buffer, COMMON_BUF_MAX, "%" PRId64, value->_long.value);
#else
*len = sprintf(COMMON_buffer, "%" PRId64, value->_long.value);
#endif
*addr = COMMON_buffer;
return;
__DATE:
LOCAL_format_date(DATE_split(value), LF_STANDARD, NULL, 0, addr, len);
return;
__SINGLE:
__FLOAT:
LOCAL_format_number(value->_float.value, LF_STANDARD, NULL, 0, addr, len, TRUE);
return;
__STRING:
*len = value->_string.len;
*addr = value->_string.addr + value->_string.start;
return;
__OBJECT:
if (VALUE_is_null(value))
goto __NULL;
#ifdef OS_OPENBSD
*len = snprintf(COMMON_buffer, COMMON_BUF_MAX, "(%s %p)", OBJECT_class(value->_object.object)->name, value->_object.object);
#else
*len = sprintf(COMMON_buffer, "(%s %p)", OBJECT_class(value->_object.object)->name, value->_object.object);
#endif
*addr = COMMON_buffer;
return;
__VARIANT:
VARIANT_undo(value);
goto __CONV;
__VOID:
THROW(E_NRETURN);
__CLASS:
#ifdef OS_OPENBSD
*len = snprintf(COMMON_buffer, COMMON_BUF_MAX, "(Class %s)", value->_class.class->name);
#else
*len = sprintf(COMMON_buffer, "(Class %s)", value->_class.class->name);
#endif
*addr = COMMON_buffer;
return;
__ARRAY:
__FUNCTION:
#ifdef OS_OPENBSD
*len = snprintf(COMMON_buffer, COMMON_BUF_MAX, "(%s ?)", TYPE_get_name(value->type));
#else
*len = sprintf(COMMON_buffer, "(%s ?)", TYPE_get_name(value->type));
#endif
*addr = COMMON_buffer;
/*THROW(E_TYPE, TYPE_get_name(T_STRING), TYPE_get_name(value->type));*/
}
void VALUE_from_string(VALUE *value, const char *addr, int len)
{
value->type = T_NULL;
if (!len || *addr == 0)
return;
if (!DATE_from_string(addr, len, value, TRUE))
return;
if (!NUMBER_from_string(NB_READ_ALL | NB_READ_HEX_BIN | NB_LOCAL, addr, len, value))
return;
if (len == 4 && strncasecmp(addr, "true", len) == 0)
{
value->type = T_BOOLEAN;
value->_boolean.value = -1;
return;
}
if (len == 5 && strncasecmp(addr, "false", len) == 0)
{
value->type = T_BOOLEAN;
value->_boolean.value = 0;
return;
}
}
void VALUE_class_read(CLASS *class, VALUE *value, char *addr, CTYPE ctype)
{
if (ctype.id == T_OBJECT)
{
VALUE_read(value, addr, (ctype.value >= 0) ? (TYPE)class->load->class_ref[ctype.value] : T_OBJECT);
}
else if (ctype.id == T_ARRAY)
{
value->type = T_ARRAY;
//value->_array.desc = class->load->array[ctype.value];
value->_array.class = class;
value->_array.addr = addr;
value->_array.index = ctype.value;
value->_array.keep = TRUE; // We suppose that the array goes to the stack
}
else
VALUE_read(value, addr, (TYPE)ctype.id);
}
void VALUE_class_write(CLASS *class, VALUE *value, char *addr, CTYPE ctype)
{
if (ctype.id == T_OBJECT)
{
VALUE_write(value, addr, (ctype.value >= 0) ? (TYPE)class->load->class_ref[ctype.value] : T_OBJECT);
}
else if (ctype.id == T_ARRAY)
{
THROW(E_UNKNOWN);
}
else
VALUE_write(value, addr, (TYPE)ctype.id);
}
void VALUE_class_constant(CLASS *class, VALUE *value, int ind)
{
static void *jump[] =
{
&&__ILLEGAL, &&__INTEGER, &&__INTEGER, &&__INTEGER, &&__INTEGER, &&__LONG, &&__FLOAT, &&__FLOAT,
&&__ILLEGAL, &&__STRING, &&__CSTRING, &&__ILLEGAL, &&__ILLEGAL, &&__ILLEGAL, &&__ILLEGAL, &&__ILLEGAL
};
CLASS_CONST *cc;
if (ind < 0)
goto __ILLEGAL;
cc = &class->load->cst[ind];
value->type = cc->type;
goto *jump[cc->type];
__INTEGER:
value->_integer.value = cc->_integer.value;
return;
__LONG:
value->_long.value = cc->_long.value;
return;
__FLOAT:
value->_float.value = cc->_float.value;
return;
__STRING:
value->type = T_CSTRING;
value->_string.addr = (char *)cc->_string.addr;
value->_string.start = 0;
value->_string.len = cc->_string.len;
return;
__CSTRING:
value->type = T_CSTRING;
value->_string.addr = (char *)LOCAL_gettext(cc->_string.addr);
value->_string.start = 0;
value->_string.len = strlen(value->_string.addr);
return;
__ILLEGAL:
EXEC_ILLEGAL();
}
bool VALUE_is_null(VALUE *val)
{
static void *jump[16] = {
&&__FALSE, &&__FALSE, &&__FALSE, &&__FALSE, &&__FALSE, &&__FALSE, &&__FALSE, &&__FALSE, &&__DATE,
&&__STRING, &&__STRING, &&__VARIANT, &&__FALSE, &&__FALSE, &&__FALSE, &&__NULL
};
TYPE type = val->type;
if (TYPE_is_object(type))
return val->_object.object == NULL;
else
goto *jump[type];
__NULL:
return TRUE;
__STRING:
return val->_string.addr == 0 || val->_string.len == 0;
__DATE:
return val->_date.date == 0 && val->_date.time == 0;
__VARIANT:
if (val->_variant.vtype == T_NULL)
return TRUE;
else if (val->_variant.vtype == T_STRING)
return *((char **)val->_variant.value) == NULL;
else if (val->_variant.vtype == T_DATE)
return ((DATE *)val->_variant.value)->date == 0 && ((DATE *)val->_variant.value)->time == 0;
else if (TYPE_is_object(val->_variant.vtype))
return *((void **)val->_variant.value) == NULL;
__FALSE:
return FALSE;
}
void VALUE_get_string(VALUE *val, char **text, int *length)
{
if (VALUE_is_null(val))
{
*text = 0;
*length = 0;
}
else
{
*length = val->_string.len;
if (*length)
*text = val->_string.start + val->_string.addr;
else
*text = NULL;
}
}
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