91d8a804d3
Result<T, E> has an `ok()` method that adapts a Result<T,E> into an Option<T>. It's possible to get around this adapter by writing Result<T,E>.map_or(None, Some). This lint is implemented as a new variant of the existing [`option_map_none` lint](https://github.com/rust-lang/rust-clippy/pull/2128)
14 lines
336 B
Rust
14 lines
336 B
Rust
// run-rustfix
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#![warn(clippy::result_map_or_into_option)]
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fn main() {
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let opt: Result<u32, &str> = Ok(1);
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let _ = opt.map_or(None, Some);
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let rewrap = |s: u32| -> Option<u32> { Some(s) };
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// A non-Some `f` arg should not emit the lint
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let opt: Result<u32, &str> = Ok(1);
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let _ = opt.map_or(None, rewrap);
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}
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