rust/tests/ui/string_lit_as_bytes.rs
2023-08-11 14:02:28 +00:00

50 lines
1.2 KiB
Rust

//@aux-build:macro_rules.rs
#![allow(clippy::needless_raw_string_hashes, dead_code, unused_variables)]
#![warn(clippy::string_lit_as_bytes)]
#[macro_use]
extern crate macro_rules;
macro_rules! b {
($b:literal) => {
const B: &[u8] = $b.as_bytes();
};
}
fn str_lit_as_bytes() {
let bs = "hello there".as_bytes();
let bs = r###"raw string with 3# plus " ""###.as_bytes();
let bs = "lit to string".to_string().into_bytes();
let bs = "lit to owned".to_owned().into_bytes();
b!("warning");
string_lit_as_bytes!("no warning");
// no warning, because these cannot be written as byte string literals:
let ubs = "".as_bytes();
let ubs = "hello there! this is a very long string".as_bytes();
let ubs = "".to_string().into_bytes();
let ubs = "this is also too long and shouldn't be fixed".to_string().into_bytes();
let strify = stringify!(foobar).as_bytes();
let current_version = env!("CARGO_PKG_VERSION").as_bytes();
let includestr = include_str!("string_lit_as_bytes.rs").as_bytes();
let _ = "string with newline\t\n".as_bytes();
let _ = match "x".as_bytes() {
b"xx" => 0,
[b'x', ..] => 1,
_ => 2,
};
}
fn main() {}