syntax_data: {"ast_node_type":"function","tokens":[{"end":88,"kind":"keyword","start":0,"text":"fn"}]}
source_snippet:     fn field_refs(&mut self, fields: &'tcx [hir::ExprField<'tcx>]) -> Box<[FieldExpr]> {
context_before:     /// Converts a list of named fields (i.e., for struct-like struct/enum ADTs) into FieldExpr.
context_after:         fields