gambas-source-code/main/gbx/gbx_exec_operator.c
Benoît Minisini 55e313b8f5 [INTERPRETER]
* NEW: Put every '_operators' interface related methods in the same source 
  file.

[GB.GSL]
* NEW: Polynomial _call() special method now is a synonymous of its Eval() 
  method. That way, you can write 'P(X)' to get the value of P(X).


git-svn-id: svn://localhost/gambas/trunk@4933 867c0c6c-44f3-4631-809d-bfa615b0a4ec
2012-07-10 14:35:17 +00:00

236 lines
6.1 KiB
C

/***************************************************************************
gbx_exec_operator.c
(c) 2000-2012 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., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301, USA.
***************************************************************************/
#define __GBX_EXEC_OPERATOR_C
#include "gb_common.h"
#include "gbx_exec.h"
typedef
void *(*FUNC_O_OF)(void *, double);
typedef
void *(*FUNC_O_OO)(void *, void *);
typedef
int (*FUNC_I_OF)(void *, double);
typedef
int (*FUNC_I_OO)(void *, void *);
typedef
void *(*FUNC_O_O)(void *);
typedef
double (*FUNC_F_O)(void *);
bool EXEC_check_operator_single(VALUE *P1)
{
return (TYPE_is_object(P1->type) && P1->_object.object && OBJECT_class(P1->_object.object)->has_operators);
}
int EXEC_check_operator(VALUE *P1, VALUE *P2)
{
if (TYPE_is_number(P1->type) && TYPE_is_object(P2->type))
{
if (P2->_object.object && OBJECT_class(P2->_object.object)->has_operators)
{
//*dynamic = P2->type == T_OBJECT;
return OP_FLOAT_OBJECT;
}
}
else if (TYPE_is_number(P2->type) && TYPE_is_object(P1->type))
{
if (P1->_object.object && OBJECT_class(P1->_object.object)->has_operators)
{
//*dynamic = P1->type == T_OBJECT;
return OP_OBJECT_FLOAT;
}
}
else if (TYPE_is_object(P1->type) && TYPE_is_object(P2->type) && P1->_object.object && P2->_object.object)
{
CLASS *class1 = OBJECT_class(P1->_object.object);
CLASS *class2 = OBJECT_class(P2->_object.object);
//*dynamic = P1->type == T_OBJECT || P2->type = T_OBJECT;
if (class1 && class1->has_operators)
{
if (class1 == class2)
return OP_OBJECT_OBJECT;
if (class2 && class2->has_operators)
return OP_OBJECT_CONV;
}
}
return OP_NOTHING;
}
void EXEC_operator(uchar what, uchar op, VALUE *P1, VALUE *P2)
{
static void *jump[] = { NULL, &&__OBJECT_FLOAT, &&__FLOAT_OBJECT, &&__OBJECT_CONV, &&__CONV_OBJECT, &&__OBJECT_OBJECT };
void *func;
void *result;
goto *jump[what];
__OBJECT_FLOAT:
if (!P1->_object.object)
THROW(E_NULL);
func = ((void **)(OBJECT_class(P1->_object.object)->operators))[op];
VALUE_conv_float(P2);
result = (*(FUNC_O_OF)func)(P1->_object.object, P2->_float.value);
OBJECT_REF(result, "EXEC_operator");
OBJECT_UNREF(P1->_object.object, "EXEC_operator");
goto __END;
__FLOAT_OBJECT:
if (!P2->_object.object)
THROW(E_NULL);
func = ((void **)(OBJECT_class(P2->_object.object)->operators))[op];
VALUE_conv_float(P1);
result = (*(FUNC_O_OF)func)(P2->_object.object, P1->_float.value);
OBJECT_REF(result, "EXEC_operator");
P1->_object.class = P2->_object.class;
OBJECT_UNREF(P2->_object.object, "EXEC_operator");
goto __END;
__OBJECT_CONV:
VALUE_conv(P2, (TYPE)P1->_object.class);
goto __OBJECT_OBJECT;
__CONV_OBJECT:
VALUE_conv(P1, (TYPE)P2->_object.class);
goto __OBJECT_OBJECT;
__OBJECT_OBJECT:
if (!P1->_object.object || !P2->_object.object)
THROW(E_NULL);
func = ((void **)(OBJECT_class(P1->_object.object)->operators))[op];
result = (*(FUNC_O_OO)func)(P1->_object.object, P2->_object.object);
OBJECT_REF(result, "EXEC_operator");
OBJECT_UNREF(P1->_object.object, "EXEC_operator");
OBJECT_UNREF(P2->_object.object, "EXEC_operator");
__END:
P1->_object.object = result;
}
void EXEC_operator_object_add_quick(VALUE *P1, double val)
{
if (P1->_object.object)
{
void *func = ((void **)(OBJECT_class(P1->_object.object)->operators))[CO_ADDF];
void *result = (*(FUNC_O_OF)func)(P1->_object.object, val);
OBJECT_REF(result, "EXEC_operator_object_float_direct");
OBJECT_UNREF(P1->_object.object, "EXEC_operator_object_float_direct");
P1->_object.object = result;
}
else
THROW(E_NULL);
}
bool EXEC_comparator(uchar what, uchar op, VALUE *P1, VALUE *P2)
{
static void *jump[] = { NULL, &&__OBJECT_FLOAT, &&__FLOAT_OBJECT, &&__OBJECT_CONV, &&__CONV_OBJECT, &&__OBJECT_OBJECT };
void *func;
int result;
goto *jump[what];
__OBJECT_FLOAT:
func = ((void **)(OBJECT_class(P1->_object.object)->operators))[op];
VALUE_conv_float(P2);
result = (*(FUNC_I_OF)func)(P1->_object.object, P2->_float.value);
OBJECT_UNREF(P1->_object.object, "EXEC_comparator");
return result;
__FLOAT_OBJECT:
func = ((void **)(OBJECT_class(P2->_object.object)->operators))[op];
VALUE_conv_float(P1);
result = (*(FUNC_I_OF)func)(P2->_object.object, P1->_float.value);
OBJECT_UNREF(P2->_object.object, "EXEC_comparator");
return result;
__OBJECT_CONV:
VALUE_conv(P2, (TYPE)P1->_object.class);
goto __OBJECT_OBJECT;
__CONV_OBJECT:
VALUE_conv(P1, (TYPE)P2->_object.class);
goto __OBJECT_OBJECT;
__OBJECT_OBJECT:
func = ((void **)(OBJECT_class(P1->_object.object)->operators))[op];
result = (*(FUNC_I_OO)func)(P1->_object.object, P2->_object.object);
OBJECT_UNREF(P1->_object.object, "EXEC_comparator");
OBJECT_UNREF(P2->_object.object, "EXEC_comparator");
return result != 0;
}
void EXEC_operator_object_abs(VALUE *P1)
{
if (P1->_object.object)
{
void *func = ((void **)(OBJECT_class(P1->_object.object)->operators))[CO_ABS];
double result = (*(FUNC_F_O)func)(P1->_object.object);
OBJECT_UNREF(P1->_object.object, "EXEC_operator_object_abs");
P1->type = T_FLOAT;
P1->_float.value = result;
}
else
THROW(E_NULL);
}
void EXEC_operator_object_single(uchar op, VALUE *P1)
{
if (P1->_object.object)
{
void *func = ((void **)(OBJECT_class(P1->_object.object)->operators))[op];
void *result = (*(FUNC_O_O)func)(P1->_object.object);
OBJECT_REF(result, "EXEC_operator_object_single");
OBJECT_UNREF(P1->_object.object, "EXEC_operator_object_single");
P1->_object.object = result;
}
else
THROW(E_NULL);
}