error: unnecessary `if let` since only the `Some` variant of the iterator element is used --> $DIR/manual_flatten.rs:7:5 | LL | for n in x { | ^ - help: try: `x.into_iter().flatten()` | _____| | | LL | | if let Some(y) = n { LL | | println!("{}", y); LL | | } LL | | } | |_____^ | = note: `-D clippy::manual-flatten` implied by `-D warnings` help: ...and remove the `if let` statement in the for loop --> $DIR/manual_flatten.rs:8:9 | LL | / if let Some(y) = n { LL | | println!("{}", y); LL | | } | |_________^ error: unnecessary `if let` since only the `Ok` variant of the iterator element is used --> $DIR/manual_flatten.rs:15:5 | LL | for n in y.clone() { | ^ --------- help: try: `y.clone().into_iter().flatten()` | _____| | | LL | | if let Ok(n) = n { LL | | println!("{}", n); LL | | }; LL | | } | |_____^ | help: ...and remove the `if let` statement in the for loop --> $DIR/manual_flatten.rs:16:9 | LL | / if let Ok(n) = n { LL | | println!("{}", n); LL | | }; | |_________^ error: unnecessary `if let` since only the `Ok` variant of the iterator element is used --> $DIR/manual_flatten.rs:22:5 | LL | for n in &y { | ^ -- help: try: `y.iter().flatten()` | _____| | | LL | | if let Ok(n) = n { LL | | println!("{}", n); LL | | } LL | | } | |_____^ | help: ...and remove the `if let` statement in the for loop --> $DIR/manual_flatten.rs:23:9 | LL | / if let Ok(n) = n { LL | | println!("{}", n); LL | | } | |_________^ error: unnecessary `if let` since only the `Ok` variant of the iterator element is used --> $DIR/manual_flatten.rs:30:5 | LL | for n in z { | ^ - help: try: `z.iter().flatten()` | _____| | | LL | | if let Ok(n) = n { LL | | println!("{}", n); LL | | } LL | | } | |_____^ | help: ...and remove the `if let` statement in the for loop --> $DIR/manual_flatten.rs:31:9 | LL | / if let Ok(n) = n { LL | | println!("{}", n); LL | | } | |_________^ error: unnecessary `if let` since only the `Some` variant of the iterator element is used --> $DIR/manual_flatten.rs:39:5 | LL | for n in z { | ^ - help: try: `z.flatten()` | _____| | | LL | | if let Some(m) = n { LL | | println!("{}", m); LL | | } LL | | } | |_____^ | help: ...and remove the `if let` statement in the for loop --> $DIR/manual_flatten.rs:40:9 | LL | / if let Some(m) = n { LL | | println!("{}", m); LL | | } | |_________^ error: unnecessary `if let` since only the `Some` variant of the iterator element is used --> $DIR/manual_flatten.rs:72:5 | LL | for n in &vec_of_ref { | ^ ----------- help: try: `vec_of_ref.iter().copied().flatten()` | _____| | | LL | | if let Some(n) = n { LL | | println!("{:?}", n); LL | | } LL | | } | |_____^ | help: ...and remove the `if let` statement in the for loop --> $DIR/manual_flatten.rs:73:9 | LL | / if let Some(n) = n { LL | | println!("{:?}", n); LL | | } | |_________^ error: unnecessary `if let` since only the `Some` variant of the iterator element is used --> $DIR/manual_flatten.rs:79:5 | LL | for n in vec_of_ref { | ^ ---------- help: try: `vec_of_ref.iter().copied().flatten()` | _____| | | LL | | if let Some(n) = n { LL | | println!("{:?}", n); LL | | } LL | | } | |_____^ | help: ...and remove the `if let` statement in the for loop --> $DIR/manual_flatten.rs:80:9 | LL | / if let Some(n) = n { LL | | println!("{:?}", n); LL | | } | |_________^ error: unnecessary `if let` since only the `Some` variant of the iterator element is used --> $DIR/manual_flatten.rs:86:5 | LL | for n in slice_of_ref { | ^ ------------ help: try: `slice_of_ref.iter().copied().flatten()` | _____| | | LL | | if let Some(n) = n { LL | | println!("{:?}", n); LL | | } LL | | } | |_____^ | help: ...and remove the `if let` statement in the for loop --> $DIR/manual_flatten.rs:87:9 | LL | / if let Some(n) = n { LL | | println!("{:?}", n); LL | | } | |_________^ error: unnecessary `if let` since only the `Some` variant of the iterator element is used --> $DIR/manual_flatten.rs:116:5 | LL | / for n in vec![ LL | | Some(1), LL | | Some(2), LL | | Some(3) ... | LL | | } LL | | } | |_____^ | help: remove the `if let` statement in the for loop and then... --> $DIR/manual_flatten.rs:121:9 | LL | / if let Some(n) = n { LL | | println!("{:?}", n); LL | | } | |_________^ help: try | LL ~ for n in vec![ LL + Some(1), LL + Some(2), LL + Some(3) LL ~ ].iter().flatten() { | error: aborting due to 9 previous errors