-#define BT_ASSERT_PRE_FIELD_IS_SET(_field, _name) \
- BT_ASSERT_PRE(bt_field_is_set(_field), \
+#define BT_ASSERT_PRE_DEV_FIELD_IS_VARIANT(_field, _name) \
+ BT_ASSERT_PRE_DEV( \
+ ((const struct bt_field *) (_field))->class->type == BT_FIELD_CLASS_TYPE_VARIANT_WITHOUT_SELECTOR || \
+ ((const struct bt_field *) (_field))->class->type == BT_FIELD_CLASS_TYPE_VARIANT_WITH_UNSIGNED_SELECTOR || \
+ ((const struct bt_field *) (_field))->class->type == BT_FIELD_CLASS_TYPE_VARIANT_WITH_SIGNED_SELECTOR, \
+ _name " is not a variant field: %![field-]+f", (_field))
+
+#define BT_ASSERT_PRE_DEV_FIELD_IS_SET(_field, _name) \
+ BT_ASSERT_PRE_DEV(bt_field_is_set(_field), \