syntax_data: {"ast_node_type":"other","tokens":[{"end":47,"kind":"keyword","start":0,"text":"ty::Adt(adt_def,"}]}
source_snippet:                     ty::Adt(adt_def, args) => {
context_before:                     // impl then check whether the field types need `Drop`.
context_after:                         let tys = match (self.adt_components)(adt_def, args) {