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rust-clippy/tests/ui/inefficient_to_string.rs

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// run-rustfix
2019-10-16 19:54:20 +00:00
#![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();
}