79 lines
2.0 KiB
Rust
79 lines
2.0 KiB
Rust
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// run-rustfix
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#![warn(clippy::option_map_unit_fn)]
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#![allow(unused)]
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fn do_nothing<T>(_: T) {}
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fn diverge<T>(_: T) -> ! {
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panic!()
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}
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fn plus_one(value: usize) -> usize {
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value + 1
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}
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struct HasOption {
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field: Option<usize>,
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}
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impl HasOption {
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fn do_option_nothing(self: &Self, value: usize) {}
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fn do_option_plus_one(self: &Self, value: usize) -> usize {
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value + 1
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}
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}
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#[rustfmt::skip]
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fn option_map_unit_fn() {
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let x = HasOption { field: Some(10) };
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x.field.map(plus_one);
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let _ : Option<()> = x.field.map(do_nothing);
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if let Some(x_field) = x.field { do_nothing(x_field) }
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if let Some(x_field) = x.field { do_nothing(x_field) }
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if let Some(x_field) = x.field { diverge(x_field) }
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let captured = 10;
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if let Some(value) = x.field { do_nothing(value + captured) };
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let _ : Option<()> = x.field.map(|value| do_nothing(value + captured));
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if let Some(value) = x.field { x.do_option_nothing(value + captured) }
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if let Some(value) = x.field { x.do_option_plus_one(value + captured); }
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if let Some(value) = x.field { do_nothing(value + captured) }
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if let Some(value) = x.field { do_nothing(value + captured) }
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if let Some(value) = x.field { do_nothing(value + captured); }
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if let Some(value) = x.field { do_nothing(value + captured); }
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if let Some(value) = x.field { diverge(value + captured) }
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if let Some(value) = x.field { diverge(value + captured) }
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if let Some(value) = x.field { diverge(value + captured); }
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if let Some(value) = x.field { diverge(value + captured); }
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x.field.map(|value| plus_one(value + captured));
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x.field.map(|value| { plus_one(value + captured) });
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if let Some(value) = x.field { let y = plus_one(value + captured); }
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if let Some(value) = x.field { plus_one(value + captured); }
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if let Some(value) = x.field { plus_one(value + captured); }
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if let Some(ref value) = x.field { do_nothing(value + captured) }}
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fn main() {}
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