rust-clippy/tests/ui/string_slice.rs

19 lines
678 B
Rust

#![warn(clippy::string_slice)]
#![allow(clippy::no_effect)]
use std::borrow::Cow;
fn main() {
&"Ölkanne"[1..];
//~^ ERROR: indexing into a string may panic if the index is within a UTF-8 character
//~| NOTE: `-D clippy::string-slice` implied by `-D warnings`
let m = "Mötörhead";
&m[2..5];
//~^ ERROR: indexing into a string may panic if the index is within a UTF-8 character
let s = String::from(m);
&s[0..2];
//~^ ERROR: indexing into a string may panic if the index is within a UTF-8 character
let a = Cow::Borrowed("foo");
&a[0..3];
//~^ ERROR: indexing into a string may panic if the index is within a UTF-8 character
}