rust/tests/ui/map_clone.rs

// 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.

#![warn(clippy::all, clippy::pedantic)]
#![allow(clippy::missing_docs_in_private_items)]

fn main() {
    let _: Vec<i8> = vec![5_i8; 6].iter().map(|x| *x).collect();
    let _: Vec<String> = vec![String::new()].iter().map(|x| x.clone()).collect();
    let _: Vec<u32> = vec![42, 43].iter().map(|&x| x).collect();
    let _: Option<u64> = Some(Box::new(16)).map(|b| *b);
}