rust/tests/ui/redundant_as_str.rs

#![warn(clippy::redundant_as_str)]

fn main() {
	let string = "Hello, world!".to_owned();

	// These methods are redundant and the `as_str` can be removed.
    let _redundant = string.as_str().as_bytes();
    let _redundant = string.as_str().is_empty();

    // These methods don't use `as_str` when they are redundant.
    let _no_as_str = string.as_bytes();
    let _no_as_str = string.is_empty();

	// These methods are not redundant, and are equivelant to
	// doing dereferencing the string and applying the method.
    let _not_redundant = string.as_str().escape_unicode();
    let _not_redundant = string.as_str().trim();
    let _not_redundant = string.as_str().split_whitespace();

	// These methods don't use `as_str` and are applied on a `str` directly.
	let borrowed_str = "Hello, world!";
    let _is_str = borrowed_str.as_bytes();
    let _is_str = borrowed_str.is_empty();
}