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https://github.com/rust-lang/rust-clippy
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105 lines
2.3 KiB
Text
105 lines
2.3 KiB
Text
error: called `map(..).flatten()` on `Option`
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--> $DIR/map_flatten.rs:8:10
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LL | .map(|x| {
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| __________^
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LL | |
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LL | |
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LL | | if x <= 5 {
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... |
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LL | | })
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LL | | .flatten();
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| |__________________^
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= note: `-D clippy::map-flatten` implied by `-D warnings`
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help: try replacing `map` with `and_then` and remove the `.flatten()`
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LL ~ .and_then(|x| {
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LL +
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LL +
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LL + if x <= 5 {
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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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LL ~ });
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error: called `map(..).flatten()` on `Result`
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--> $DIR/map_flatten.rs:20:10
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LL | .map(|x| {
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| __________^
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LL | |
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LL | | if x == 1 {
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LL | | Ok(x)
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... |
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LL | | })
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LL | | .flatten();
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| |__________________^
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help: try replacing `map` with `and_then` and remove the `.flatten()`
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LL ~ .and_then(|x| {
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LL +
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LL + if x == 1 {
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LL + Ok(x)
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LL + } else {
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LL + Err(0)
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LL + }
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LL ~ });
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error: called `map(..).flatten()` on `Result`
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--> $DIR/map_flatten.rs:33:10
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LL | .map(|res| {
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| __________^
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LL | |
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LL | | if res > 0 {
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LL | | do_something();
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... |
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LL | | })
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LL | | .flatten();
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| |__________________^
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help: try replacing `map` with `and_then` and remove the `.flatten()`
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LL ~ .and_then(|res| {
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LL +
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LL + if res > 0 {
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LL + do_something();
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LL + Ok(res)
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LL + } else {
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LL + Err(0)
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LL + }
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LL ~ });
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error: called `map(..).flatten()` on `Iterator`
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--> $DIR/map_flatten.rs:46:10
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LL | .map(|some_value| {
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| __________^
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LL | |
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LL | | if some_value > 3 {
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LL | | Some(some_value)
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... |
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LL | | })
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LL | | .flatten()
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| |__________________^
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help: try replacing `map` with `filter_map` and remove the `.flatten()`
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LL ~ .filter_map(|some_value| {
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LL +
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LL + if some_value > 3 {
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LL + Some(some_value)
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LL + } else {
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LL + None
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LL + }
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LL + })
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error: aborting due to 4 previous errors
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