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#![allow(unused)]
#![allow(clippy::useless_vec)]
use std::collections::{HashSet, VecDeque};
fn main() {
let v = [1, 2, 3, 4, 5];
let v2: Vec<isize> = v.to_vec();
//~^ iter_cloned_collect
let v3: HashSet<isize> = v.iter().cloned().collect();
let v4: VecDeque<isize> = v.iter().cloned().collect();
// Handle macro expansion in suggestion
let _: Vec<isize> = vec![1, 2, 3].to_vec();
//~^ iter_cloned_collect
// Issue #3704
unsafe {
let _: Vec<u8> = std::ffi::CStr::from_ptr(std::ptr::null())
.to_bytes().to_vec();
}
// Issue #6808
let arr: [u8; 64] = [0; 64];
let _: Vec<_> = arr.to_vec();
//~^ iter_cloned_collect
// Issue #6703
let _: Vec<isize> = v.to_vec();
//~^ iter_cloned_collect
}
mod issue9119 {
use std::iter;
#[derive(Clone)]
struct Example(u16);
impl iter::FromIterator<Example> for Vec<u8> {
fn from_iter<T>(iter: T) -> Self
where
T: IntoIterator<Item = Example>,
{
iter.into_iter().flat_map(|e| e.0.to_le_bytes()).collect()
}
}
fn foo() {
let examples = [Example(1), Example(0x1234)];
let encoded: Vec<u8> = examples.iter().cloned().collect();
assert_eq!(encoded, vec![0x01, 0x00, 0x34, 0x12]);
let a = [&&String::new()];
let v: Vec<&&String> = a.to_vec();
//~^ iter_cloned_collect
}
}
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