mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-11-15 01:17:16 +00:00
31 lines
965 B
Rust
31 lines
965 B
Rust
|
#![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();
|
||
|
|
}
|