2 if let ExprKind::Block(ref block) = expr.kind;
3 if let Some(trailing_expr) = &block.expr;
4 if block.stmts.len() == 1;
5 if let StmtKind::Semi(ref e, _) = block.stmts[0].kind
6 if let ExprKind::Tup(ref elements) = e.kind;
7 if elements.len() == 0;
9 // report your lint here
14 // report your lint here