mirror of https://github.com/rust-lang/rust
43 lines
1.0 KiB
Rust
43 lines
1.0 KiB
Rust
//@ run-rustfix
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use std::collections::hash_set::Iter;
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use std::collections::HashSet;
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fn iter_to_vec<'b, X>(i: Iter<'b, X>) -> Vec<X> {
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let i = i.map(|x| x.clone());
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i.collect() //~ ERROR E0277
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}
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fn main() {
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let v = vec![(0, 0)];
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let scores = v
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.iter()
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.map(|(a, b)| {
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a + b;
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});
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println!("{}", scores.sum::<i32>()); //~ ERROR E0277
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println!(
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"{}",
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vec![0, 1]
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.iter()
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.map(|x| x * 2)
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.map(|x| { x; })
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.map(|x| { x })
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.sum::<i32>(), //~ ERROR E0277
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);
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println!("{}", vec![0, 1].iter().map(|x| { x; }).sum::<i32>()); //~ ERROR E0277
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let a = vec![0];
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let b = a.into_iter();
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let c = b.map(|x| x + 1);
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let d = c.filter(|x| *x > 10 );
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let e = d.map(|x| {
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x + 1;
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});
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let f = e.filter(|_| false);
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let g: Vec<i32> = f.collect(); //~ ERROR E0277
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println!("{g:?}");
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let mut s = HashSet::new();
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s.insert(1u8);
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println!("{:?}", iter_to_vec(s.iter()));
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}
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