{"ast_node_type":"other","tokens":[{"end":95,"kind":"keyword","start":0,"text":"Adt::from(s).layout(db).ok().and_then(|layout|"}]}
                        Adt::from(s).layout(db).ok().and_then(|layout| layout.field_offset(it))
                    hir::VariantDef::Struct(s) => {
                    }