.build();
            }

            @Override
            protected ActivationFile.Builder transformActivationFile_Missing(
                    Supplier<? extends ActivationFile.Builder> creator,
                    ActivationFile.Builder builder,
                    ActivationFile target) {
                final String path = target.getMissing();

            } finally {
                stk.pop();
            }
        }

        @Override
        protected ActivationFile.Builder transformActivationFile_Exists(
                Supplier<? extends ActivationFile.Builder> creator,
                ActivationFile.Builder builder,
                ActivationFile target) {
            stk.push(nextFrame("exists"));
            try {