mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-12-19 17:44:21 +00:00
158 lines
4.8 KiB
Text
158 lines
4.8 KiB
Text
error: manual implementation of `Option::map`
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--> $DIR/manual_map_option.rs:7:5
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LL | / match Some(0) {
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LL | | Some(_) => Some(2),
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LL | | None::<u32> => None,
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LL | | };
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| |_____^ help: try this: `Some(0).map(|_| 2)`
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= note: `-D clippy::manual-map` implied by `-D warnings`
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error: manual implementation of `Option::map`
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--> $DIR/manual_map_option.rs:12:5
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LL | / match Some(0) {
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LL | | Some(x) => Some(x + 1),
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LL | | _ => None,
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LL | | };
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| |_____^ help: try this: `Some(0).map(|x| x + 1)`
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error: manual implementation of `Option::map`
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--> $DIR/manual_map_option.rs:17:5
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LL | / match Some("") {
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LL | | Some(x) => Some(x.is_empty()),
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LL | | None => None,
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LL | | };
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| |_____^ help: try this: `Some("").map(|x| x.is_empty())`
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error: manual implementation of `Option::map`
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--> $DIR/manual_map_option.rs:22:5
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LL | / if let Some(x) = Some(0) {
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LL | | Some(!x)
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LL | | } else {
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LL | | None
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LL | | };
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| |_____^ help: try this: `Some(0).map(|x| !x)`
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error: manual implementation of `Option::map`
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--> $DIR/manual_map_option.rs:29:5
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LL | / match Some(0) {
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LL | | Some(x) => { Some(std::convert::identity(x)) }
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LL | | None => { None }
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LL | | };
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| |_____^ help: try this: `Some(0).map(std::convert::identity)`
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error: manual implementation of `Option::map`
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--> $DIR/manual_map_option.rs:34:5
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LL | / match Some(&String::new()) {
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LL | | Some(x) => Some(str::len(x)),
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LL | | None => None,
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LL | | };
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| |_____^ help: try this: `Some(&String::new()).map(|x| str::len(x))`
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error: manual implementation of `Option::map`
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--> $DIR/manual_map_option.rs:44:5
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LL | / match &Some([0, 1]) {
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LL | | Some(x) => Some(x[0]),
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LL | | &None => None,
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LL | | };
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| |_____^ help: try this: `Some([0, 1]).as_ref().map(|x| x[0])`
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error: manual implementation of `Option::map`
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--> $DIR/manual_map_option.rs:49:5
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LL | / match &Some(0) {
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LL | | &Some(x) => Some(x * 2),
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LL | | None => None,
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LL | | };
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| |_____^ help: try this: `Some(0).map(|x| x * 2)`
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error: manual implementation of `Option::map`
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--> $DIR/manual_map_option.rs:54:5
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LL | / match Some(String::new()) {
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LL | | Some(ref x) => Some(x.is_empty()),
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LL | | _ => None,
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LL | | };
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| |_____^ help: try this: `Some(String::new()).as_ref().map(|x| x.is_empty())`
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error: manual implementation of `Option::map`
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--> $DIR/manual_map_option.rs:59:5
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LL | / match &&Some(String::new()) {
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LL | | Some(x) => Some(x.len()),
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LL | | _ => None,
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LL | | };
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| |_____^ help: try this: `Some(String::new()).as_ref().map(|x| x.len())`
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error: manual implementation of `Option::map`
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--> $DIR/manual_map_option.rs:64:5
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LL | / match &&Some(0) {
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LL | | &&Some(x) => Some(x + x),
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LL | | &&_ => None,
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LL | | };
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| |_____^ help: try this: `Some(0).map(|x| x + x)`
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error: manual implementation of `Option::map`
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--> $DIR/manual_map_option.rs:77:9
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LL | / match &mut Some(String::new()) {
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LL | | Some(x) => Some(x.push_str("")),
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LL | | None => None,
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LL | | };
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| |_________^ help: try this: `Some(String::new()).as_mut().map(|x| x.push_str(""))`
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error: manual implementation of `Option::map`
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--> $DIR/manual_map_option.rs:83:5
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LL | / match &mut Some(String::new()) {
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LL | | Some(ref x) => Some(x.len()),
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LL | | None => None,
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LL | | };
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| |_____^ help: try this: `Some(String::new()).as_ref().map(|x| x.len())`
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error: manual implementation of `Option::map`
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--> $DIR/manual_map_option.rs:88:5
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LL | / match &mut &Some(String::new()) {
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LL | | Some(x) => Some(x.is_empty()),
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LL | | &mut _ => None,
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LL | | };
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| |_____^ help: try this: `Some(String::new()).as_ref().map(|x| x.is_empty())`
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error: manual implementation of `Option::map`
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--> $DIR/manual_map_option.rs:93:5
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LL | / match Some((0, 1, 2)) {
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LL | | Some((x, y, z)) => Some(x + y + z),
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LL | | None => None,
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LL | | };
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| |_____^ help: try this: `Some((0, 1, 2)).map(|(x, y, z)| x + y + z)`
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error: manual implementation of `Option::map`
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--> $DIR/manual_map_option.rs:98:5
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LL | / match Some([1, 2, 3]) {
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LL | | Some([first, ..]) => Some(first),
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LL | | None => None,
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LL | | };
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| |_____^ help: try this: `Some([1, 2, 3]).map(|[first, ..]| first)`
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error: manual implementation of `Option::map`
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--> $DIR/manual_map_option.rs:103:5
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LL | / match &Some((String::new(), "test")) {
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LL | | Some((x, y)) => Some((y, x)),
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LL | | None => None,
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LL | | };
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| |_____^ help: try this: `Some((String::new(), "test")).as_ref().map(|(x, y)| (y, x))`
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error: aborting due to 17 previous errors
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