{"ast_node_type":"variable","tokens":[{"end":59,"kind":"keyword","start":0,"text":"if"}]}
            if let Ok(child_layout) = child_ty.layout(db) {
        for (i, (_, child_ty)) in fields.iter().enumerate() {
                read_layout(nodes, db, child_ty, &child_layout, children_start + i, display_target);