ast::ExprKind::Ret(Some(ref expr)) | ast::ExprKind::Break(_, Some(ref expr)) => {
if is_unit_expr(expr) && !expr.span.from_expansion() {
span_lint_and_then(cx, UNUSED_UNIT, expr.span, "unneeded `()`", |db| {
ast::ExprKind::Ret(Some(ref expr)) | ast::ExprKind::Break(_, Some(ref expr)) => {
if is_unit_expr(expr) && !expr.span.from_expansion() {
span_lint_and_then(cx, UNUSED_UNIT, expr.span, "unneeded `()`", |db| {