+static inline
+int translate_option_field_class(struct ctx *ctx)
+{
+ struct fs_sink_ctf_field_class_option *fc =
+ fs_sink_ctf_field_class_option_create_empty(
+ cur_path_stack_top(ctx)->ir_fc,
+ cur_path_stack_top(ctx)->index_in_parent);
+ const bt_field_class *content_ir_fc =
+ bt_field_class_option_borrow_field_class_const(fc->base.ir_fc);
+ int ret;
+
+ BT_ASSERT(fc);
+
+ /*
+ * CTF 1.8 does not support the option field class type. To
+ * write something anyway, this component translates this type
+ * to a variant field class where the options are:
+ *
+ * * An empty structure field class.
+ * * The optional field class itself.
+ *
+ * The "tag" is always generated/before in that case (an 8-bit
+ * unsigned enumeration field class).
+ */
+ append_to_parent_field_class(ctx, (void *) fc);
+ ret = cur_path_stack_push(ctx, UINT64_C(-1), NULL, false, content_ir_fc,
+ (void *) fc);
+ if (ret) {
+ BT_COMP_LOGE_STR("Cannot translate option field class content.");
+ goto end;
+ }
+
+ ret = translate_field_class(ctx);
+ if (ret) {
+ BT_COMP_LOGE_STR("Cannot translate option field class content.");
+ goto end;
+ }
+
+ cur_path_stack_pop(ctx);
+ update_parent_field_class_alignment(ctx, fc->base.alignment);
+
+end:
+ return ret;
+}
+