rust-clippy/tests/ui/manual_str_repeat.fixed
2022-05-21 13:24:00 +02:00

66 lines
1.6 KiB
Rust

// run-rustfix
#![feature(custom_inner_attributes)]
#![warn(clippy::manual_str_repeat)]
use std::borrow::Cow;
use std::iter::repeat;
fn main() {
let _: String = "test".repeat(10);
let _: String = "x".repeat(10);
let _: String = "'".repeat(10);
let _: String = "\"".repeat(10);
let x = "test";
let count = 10;
let _ = x.repeat(count + 2);
macro_rules! m {
($e:expr) => {{ $e }};
}
// FIXME: macro args are fine
let _: String = repeat(m!("test")).take(m!(count)).collect();
let x = &x;
let _: String = (*x).repeat(count);
macro_rules! repeat_m {
($e:expr) => {{ repeat($e) }};
}
// Don't lint, repeat is from a macro.
let _: String = repeat_m!("test").take(count).collect();
let x: Box<str> = Box::from("test");
let _: String = x.repeat(count);
#[derive(Clone)]
struct S;
impl FromIterator<Box<S>> for String {
fn from_iter<T: IntoIterator<Item = Box<S>>>(_: T) -> Self {
Self::new()
}
}
// Don't lint, wrong box type
let _: String = repeat(Box::new(S)).take(count).collect();
let _: String = Cow::Borrowed("test").repeat(count);
let x = "x".to_owned();
let _: String = x.repeat(count);
let x = 'x';
// Don't lint, not char literal
let _: String = repeat(x).take(count).collect();
}
fn _msrv_1_15() {
#![clippy::msrv = "1.15"]
// `str::repeat` was stabilized in 1.16. Do not lint this
let _: String = std::iter::repeat("test").take(10).collect();
}
fn _msrv_1_16() {
#![clippy::msrv = "1.16"]
let _: String = "test".repeat(10);
}