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gbinding: warn on failed value transformation

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GBinding warned if g_value_transform() returned FALSE, but it didn't
warn if there was no transformation available at all. Fix that and
test it.

https://bugzilla.gnome.org/show_bug.cgi?id=726574
This commit is contained in:
Dan Winship 2014-03-17 15:11:31 -04:00
parent 1a8e3074af
commit d8c14f1378
2 changed files with 32 additions and 8 deletions
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2
gobject/gbinding.c
View File

@ -294,6 +294,7 @@ default_transform (const GValue *value_a,
{
if (g_value_transform (value_a, value_b))
goto done;
}
g_warning ("%s: Unable to convert a value of type %s to a "
"value of type %s",
@ -303,7 +304,6 @@ default_transform (const GValue *value_a,
return FALSE;
}
}
else
g_value_copy (value_a, value_b);

24
gobject/tests/binding.c
View File

@ -612,6 +612,29 @@ binding_unbind (void)
g_object_unref (target);
}
static void
binding_fail (void)
{
BindingSource *source = g_object_new (binding_source_get_type (), NULL);
BindingTarget *target = g_object_new (binding_target_get_type (), NULL);
GBinding *binding;
/* double -> boolean is not supported */
binding = g_object_bind_property (source, "value",
target, "toggle",
G_BINDING_DEFAULT);
g_object_add_weak_pointer (G_OBJECT (binding), (gpointer *) &binding);
g_test_expect_message ("GLib-GObject", G_LOG_LEVEL_WARNING,
"*Unable to convert*double*boolean*");
g_object_set (source, "value", 1.0, NULL);
g_test_assert_expected_messages ();
g_object_unref (source);
g_object_unref (target);
g_assert (binding == NULL);
}
int
main (int argc, char *argv[])
{
@ -629,6 +652,7 @@ main (int argc, char *argv[])
g_test_add_func ("/binding/invert-boolean", binding_invert_boolean);
g_test_add_func ("/binding/same-object", binding_same_object);
g_test_add_func ("/binding/unbind", binding_unbind);
g_test_add_func ("/binding/fail", binding_fail);
return g_test_run ();
}