97 lines
2.3 KiB
C
97 lines
2.3 KiB
C
/***************************************************************************
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gbx_exec_enum.c
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(c) 2000-2017 Benoît Minisini <benoit.minisini@gambas-basic.org>
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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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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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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA.
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***************************************************************************/
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#include "gb_common.h"
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#include "gb_limit.h"
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#include "gbx_c_enum.h"
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#include "gbx_exec.h"
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/* EXEC_object() ne doit pas faire d'auto-create, car sinon
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il renvoie un objet référencé */
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void EXEC_enum_first(PCODE code, VALUE *local, VALUE *penum)
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{
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OBJECT *object;
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CLASS *class;
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CENUM *old = EXEC_enum;
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CENUM *cenum;
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EXEC_object(local, &class, &object);
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if (!object && class->auto_create && !class->enum_static)
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object = EXEC_auto_create(class, FALSE);
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cenum = CENUM_create(object ? (void *)object : (void *)class);
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RELEASE(penum);
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penum->_object.class = OBJECT_class(cenum);
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penum->_object.object = cenum;
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OBJECT_REF(cenum);
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EXEC_enum = cenum;
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EXEC_special(SPEC_FIRST, class, object, 0, TRUE);
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EXEC_enum = old;
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}
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bool EXEC_enum_next(PCODE code, VALUE *local, VALUE *penum)
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{
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OBJECT *object;
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CLASS *class;
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bool defined;
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bool drop = (code & 1);
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bool err;
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CENUM *old = EXEC_enum;
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CENUM *cenum;
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defined = EXEC_object(local, &class, &object);
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cenum = (CENUM *)penum->_object.object;
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if (!cenum)
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return TRUE;
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if (cenum->stop)
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goto __STOP;
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EXEC_enum = cenum;
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err = EXEC_special(SPEC_NEXT, class, object, 0, FALSE);
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EXEC_enum = old;
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if (err)
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THROW(E_ENUM);
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if (!defined && !drop && !cenum->stop)
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VALUE_conv_variant(&SP[-1]);
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if (drop || cenum->stop)
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POP();
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if (!cenum->stop)
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return FALSE;
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__STOP:
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OBJECT_UNREF(cenum);
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penum->_object.object = NULL;
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return TRUE;
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}
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