syntax_data: {"ast_node_type":"other","tokens":[{"end":56,"kind":"keyword","start":0,"text":"self.assignment_info"}]}
source_snippet:                     self.assignment_info = Some(lhs.ty);
context_before:                 if matches!(expr.kind, ExprKind::Assign { .. }) {
context_after:                     visit::walk_expr(self, lhs);