mirror of
https://github.com/rust-lang/rust-clippy
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73 lines
2.8 KiB
Text
73 lines
2.8 KiB
Text
error: using `Option.and_then(|x| Some(y))`, which is more succinctly expressed as `map(|x| y)`
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--> $DIR/bind_instead_of_map_multipart.rs:5:13
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LL | let _ = Some("42").and_then(|s| if s.len() < 42 { Some(0) } else { Some(s.len()) });
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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note: the lint level is defined here
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--> $DIR/bind_instead_of_map_multipart.rs:1:9
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LL | #![deny(clippy::bind_instead_of_map)]
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
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help: try this
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LL | let _ = Some("42").map(|s| if s.len() < 42 { 0 } else { s.len() });
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| ~~~ ~ ~~~~~~~
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error: using `Result.and_then(|x| Ok(y))`, which is more succinctly expressed as `map(|x| y)`
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--> $DIR/bind_instead_of_map_multipart.rs:8:13
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LL | let _ = Ok::<_, ()>("42").and_then(|s| if s.len() < 42 { Ok(0) } else { Ok(s.len()) });
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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help: try this
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LL | let _ = Ok::<_, ()>("42").map(|s| if s.len() < 42 { 0 } else { s.len() });
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| ~~~ ~ ~~~~~~~
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error: using `Result.or_else(|x| Err(y))`, which is more succinctly expressed as `map_err(|x| y)`
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--> $DIR/bind_instead_of_map_multipart.rs:11:13
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LL | let _ = Err::<(), _>("42").or_else(|s| if s.len() < 42 { Err(s.len() + 20) } else { Err(s.len()) });
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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help: try this
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LL | let _ = Err::<(), _>("42").map_err(|s| if s.len() < 42 { s.len() + 20 } else { s.len() });
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| ~~~~~~~ ~~~~~~~~~~~~ ~~~~~~~
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error: using `Option.and_then(|x| Some(y))`, which is more succinctly expressed as `map(|x| y)`
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--> $DIR/bind_instead_of_map_multipart.rs:19:5
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LL | / Some("42").and_then(|s| {
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LL | | if {
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LL | | if s == "43" {
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LL | | return Some(43);
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... |
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LL | | }
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LL | | });
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| |______^
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help: try this
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LL ~ Some("42").map(|s| {
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LL | if {
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LL | if s == "43" {
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LL ~ return 43;
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LL | }
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LL | s == "42"
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...
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error: using `Option.and_then(|x| Some(y))`, which is more succinctly expressed as `map(|x| y)`
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--> $DIR/bind_instead_of_map_multipart.rs:60:13
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LL | let _ = Some("").and_then(|s| if s.len() == 20 { Some(m!()) } else { Some(Some(20)) });
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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help: try this
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LL | let _ = Some("").map(|s| if s.len() == 20 { m!() } else { Some(20) });
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| ~~~ ~~~~ ~~~~~~~~
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error: aborting due to 5 previous errors
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