rust/tests/ui/issue_2356.rs

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2018-10-06 18:18:06 +02:00
// Copyright 2014-2018 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
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#![deny(clippy::while_let_on_iterator)]
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use std::iter::Iterator;
struct Foo;
impl Foo {
fn foo1<I: Iterator<Item = usize>>(mut it: I) {
while let Some(_) = it.next() {
println!("{:?}", it.size_hint());
}
}
fn foo2<I: Iterator<Item = usize>>(mut it: I) {
while let Some(e) = it.next() {
println!("{:?}", e);
}
}
}
fn main() {
Foo::foo1(vec![].into_iter());
Foo::foo2(vec![].into_iter());
}