{"ast_node_type":"variable","tokens":[{"end":65,"kind":"keyword","start":0,"text":"if"}]}
        if let ExprKind::Call(path, [arg_ptr, _arg_val]) = e.kind
    ) -> Option<(&'tcx Expr<'tcx>, PatternKind)> {
            && let ExprKind::Path(ref qpath) = path.kind