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https://github.com/rust-lang/rust-clippy
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55 lines
2 KiB
Text
55 lines
2 KiB
Text
error: called `map_or(None, ..)` on an `Option` value
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--> $DIR/option_map_or_none.rs:10:26
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LL | let _: Option<i32> = opt.map_or(None, |x| Some(x + 1));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try using `map` instead: `opt.map(|x| x + 1)`
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= note: `-D clippy::option-map-or-none` implied by `-D warnings`
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= help: to override `-D warnings` add `#[allow(clippy::option_map_or_none)]`
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error: called `map_or(None, ..)` on an `Option` value
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--> $DIR/option_map_or_none.rs:13:26
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LL | let _: Option<i32> = opt.map_or(None, |x| {
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| __________________________^
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LL | | Some(x + 1)
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LL | | });
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| |_________________________^ help: try using `map` instead: `opt.map(|x| x + 1)`
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error: called `map_or(None, ..)` on an `Option` value
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--> $DIR/option_map_or_none.rs:17:26
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LL | let _: Option<i32> = opt.map_or(None, bar);
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| ^^^^^^^^^^^^^^^^^^^^^ help: try using `and_then` instead: `opt.and_then(bar)`
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error: called `map_or(None, ..)` on an `Option` value
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--> $DIR/option_map_or_none.rs:18:26
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LL | let _: Option<i32> = opt.map_or(None, |x| {
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| __________________________^
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LL | | let offset = 0;
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LL | | let height = x;
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LL | | Some(offset + height)
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LL | | });
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| |______^
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help: try using `and_then` instead
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LL ~ let _: Option<i32> = opt.and_then(|x| {
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LL + let offset = 0;
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LL + let height = x;
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LL + Some(offset + height)
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LL ~ });
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error: called `map_or(None, Some)` on a `Result` value
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--> $DIR/option_map_or_none.rs:25:26
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LL | let _: Option<i32> = r.map_or(None, Some);
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| ^^^^^^^^^^^^^^^^^^^^ help: try using `ok` instead: `r.ok()`
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= note: `-D clippy::result-map-or-into-option` implied by `-D warnings`
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= help: to override `-D warnings` add `#[allow(clippy::result_map_or_into_option)]`
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error: aborting due to 5 previous errors
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