syntax_data: {"ast_node_type":"other","tokens":[{"end":18,"kind":"keyword","start":0,"text":"_"}]}
source_snippet:             _ => {
context_before:             ExprKind::Field { lhs, name: field, .. } => (*lhs, PlaceElem::Field(*field, expr.ty)),
context_after:                 let place = self.parse_local(expr_id).map(Place::from)?;