rust-clippy/tests/ui/print_with_newline.rs
phil ef72b2cac0 Check {print,write}_with_newline for literal newline
Both regular strings and raw strings can contain literal newlines. This commit
extends the lint to also warn about terminating strings with these.

Behaviour handling for raw strings is also moved into `check_newlines` by
passing in the `is_raw` boolean from `check_tts` as
[suggested](https://github.com/rust-lang/rust-clippy/pull/3781#pullrequestreview-204663732)
2019-02-18 19:22:20 -05:00

42 lines
894 B
Rust

#![allow(clippy::print_literal)]
#![warn(clippy::print_with_newline)]
fn main() {
print!("Hello\n");
print!("Hello {}\n", "world");
print!("Hello {} {}\n", "world", "#2");
print!("{}\n", 1265);
// these are all fine
print!("");
print!("Hello");
println!("Hello");
println!("Hello\n");
println!("Hello {}\n", "world");
print!("Issue\n{}", 1265);
print!("{}", 1265);
print!("\n{}", 1275);
print!("\n\n");
print!("like eof\n\n");
print!("Hello {} {}\n\n", "world", "#2");
println!("\ndon't\nwarn\nfor\nmultiple\nnewlines\n"); // #3126
println!("\nbla\n\n"); // #3126
// Escaping
print!("\\n"); // #3514
print!("\\\n"); // should fail
print!("\\\\n");
// Raw strings
print!(r"\n"); // #3778
// Literal newlines should also fail
print!(
"
"
);
print!(
r"
"
);
}