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/* flags.c
* Copyright (C) 2018 Arthur Demchenkov
*
* 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, see
* <http://www.gnu.org/licenses/>.
*/
#include <glib-object.h>
/* Check that validation of flags works on architectures where
* #gint and #glong are different sizes, as the flags are cast
* between types a few times.
*
* See: https://gitlab.gnome.org/GNOME/glib/issues/1572
*/
enum {
PROP_FLAGS = 1
};
typedef struct _GTest GTest;
typedef struct _GTestClass GTestClass;
typedef enum {
NO_FLAG = 0,
LOWEST_FLAG = 1,
HIGHEST_FLAG = 1 << 31
} MyFlagsEnum;
struct _GTest {
GObject object;
MyFlagsEnum flags;
};
struct _GTestClass {
GObjectClass parent_class;
};
static GType my_test_get_type (void);
static GType my_test_flags_get_type (void);
#define G_TYPE_TEST (my_test_get_type())
#define MY_TEST(test) (G_TYPE_CHECK_INSTANCE_CAST ((test), G_TYPE_TEST, GTest))
G_DEFINE_TYPE (GTest, my_test, G_TYPE_OBJECT)
static void my_test_class_init (GTestClass * klass);
static void my_test_init (GTest * test);
static void my_test_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static void my_test_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static GType
my_test_flags_get_type (void)
{
static GType flags_type = 0;
if (G_UNLIKELY(flags_type == 0))
{
static const GFlagsValue values[] = {
{ LOWEST_FLAG, "LOWEST_FLAG", "lowest" },
{ HIGHEST_FLAG, "HIGHEST_FLAG", "highest" },
{ 0, NULL, NULL }
};
flags_type = g_flags_register_static (g_intern_static_string ("GTestFlags"), values);
}
return flags_type;
}
static void
my_test_class_init (GTestClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
gobject_class->get_property = my_test_get_property;
gobject_class->set_property = my_test_set_property;
g_object_class_install_property (gobject_class, 1,
g_param_spec_flags ("flags",
"Flags",
"Flags test property",
my_test_flags_get_type(), 0,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
}
static void my_test_init (GTest *test)
{
}
static void
my_test_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GTest *test = MY_TEST (object);
switch (prop_id)
{
case PROP_FLAGS:
g_value_set_flags (value, test->flags);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
my_test_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GTest *test = MY_TEST (object);
switch (prop_id)
{
case PROP_FLAGS:
test->flags = g_value_get_flags (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
check_flags_validation (void)
{
guint test_flags[] = {
NO_FLAG,
LOWEST_FLAG,
HIGHEST_FLAG,
LOWEST_FLAG | HIGHEST_FLAG
};
guint flag_read;
gsize i;
for (i = 0; i < G_N_ELEMENTS (test_flags); i++)
{
guint flag_set = test_flags[i];
GObject *test = g_object_new (G_TYPE_TEST,
"flags", flag_set,
NULL);
g_object_get (test, "flags", &flag_read, NULL);
/* This check will fail in case of gint -> glong conversion
* in value_flags_enum_collect_value() */
g_assert_cmpint (flag_read, ==, flag_set);
g_object_unref (test);
}
}
int
main (int argc, char **argv)
{
g_test_init (&argc, &argv, NULL);
g_test_add_func ("/gobject/flags/validate", check_flags_validation);
return g_test_run ();
}
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