rust-clippy/tests/ui/inefficient_to_string.rs
Lzu Tao f5b896451a do minor cleanups
* ToString and AsRef are in prelude, no need to import them
2019-12-24 03:06:52 +07:00

31 lines
959 B
Rust

// run-rustfix
#![deny(clippy::inefficient_to_string)]
use std::borrow::Cow;
fn main() {
let rstr: &str = "hello";
let rrstr: &&str = &rstr;
let rrrstr: &&&str = &rrstr;
let _: String = rstr.to_string();
let _: String = rrstr.to_string();
let _: String = rrrstr.to_string();
let string: String = String::from("hello");
let rstring: &String = &string;
let rrstring: &&String = &rstring;
let rrrstring: &&&String = &rrstring;
let _: String = string.to_string();
let _: String = rstring.to_string();
let _: String = rrstring.to_string();
let _: String = rrrstring.to_string();
let cow: Cow<'_, str> = Cow::Borrowed("hello");
let rcow: &Cow<'_, str> = &cow;
let rrcow: &&Cow<'_, str> = &rcow;
let rrrcow: &&&Cow<'_, str> = &rrcow;
let _: String = cow.to_string();
let _: String = rcow.to_string();
let _: String = rrcow.to_string();
let _: String = rrrcow.to_string();
}