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/*
* Copyright (c) 2023 Balazs Scheidler <balazs.scheidler@axoflow.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* As an additional exemption you are allowed to compile & link against the
* OpenSSL libraries as published by the OpenSSL project. See the file
* COPYING for details.
*
*/
#include "filterx/expr-setattr.h"
#include "filterx/object-primitive.h"
#include "filterx/object-string.h"
#include "filterx/filterx-eval.h"
#include "scratch-buffers.h"
typedef struct _FilterXSetAttr
{
FilterXExpr super;
FilterXExpr *object;
FilterXObject *attr;
FilterXExpr *new_value;
} FilterXSetAttr;
static FilterXObject *
_eval(FilterXExpr *s)
{
FilterXSetAttr *self = (FilterXSetAttr *) s;
FilterXObject *result = NULL;
FilterXObject *object = filterx_expr_eval_typed(self->object);
if (!object)
return NULL;
if (object->readonly)
{
filterx_eval_push_error("Attribute set failed, object is readonly", s, self->attr);
goto exit;
}
FilterXObject *new_value = filterx_expr_eval_typed(self->new_value);
if (!new_value)
goto exit;
FilterXObject *cloned = filterx_object_clone(new_value);
filterx_object_unref(new_value);
if (!filterx_object_setattr(object, self->attr, &cloned))
{
filterx_eval_push_error("Attribute set failed", s, self->attr);
filterx_object_unref(cloned);
}
else
{
result = cloned;
}
exit:
filterx_object_unref(object);
return result;
}
static void
_free(FilterXExpr *s)
{
FilterXSetAttr *self = (FilterXSetAttr *) s;
filterx_object_unref(self->attr);
filterx_expr_unref(self->object);
filterx_expr_unref(self->new_value);
filterx_expr_free_method(s);
}
/* Takes reference of object and new_value */
FilterXExpr *
filterx_setattr_new(FilterXExpr *object, const gchar *attr_name, FilterXExpr *new_value)
{
FilterXSetAttr *self = g_new0(FilterXSetAttr, 1);
filterx_expr_init_instance(&self->super);
self->super.eval = _eval;
self->super.free_fn = _free;
self->object = object;
self->attr = filterx_string_new(attr_name, -1);
self->new_value = new_value;
self->super.ignore_falsy_result = TRUE;
return &self->super;
}
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