{"ast_node_type":"variable","tokens":[{"end":66,"kind":"keyword","start":0,"text":"if"}]}
                    if let PathSource::Expr(Some(parent)) = source
                let (ctor_def, ctor_vis, fields) = if let Some(struct_ctor) = struct_ctor {
                        && let ExprKind::Field(..) | ExprKind::MethodCall(..) = parent.kind