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|
//@no-rustfix: overlapping suggestions
#![allow(unused_must_use)]
#![warn(clippy::needless_raw_strings, clippy::write_literal)]
use std::io::Write;
fn main() {
let mut v = Vec::new();
writeln!(v, "{}", "{hello}");
//~^ ERROR: literal with an empty format string
//~| NOTE: `-D clippy::write-literal` implied by `-D warnings`
writeln!(v, r"{}", r"{hello}");
//~^ ERROR: unnecessary raw string literal
//~| NOTE: `-D clippy::needless-raw-strings` implied by `-D warnings`
//~| ERROR: literal with an empty format string
writeln!(v, "{}", '\'');
//~^ ERROR: literal with an empty format string
writeln!(v, "{}", '"');
//~^ ERROR: literal with an empty format string
writeln!(v, r"{}", '"');
//~^ ERROR: literal with an empty format string
writeln!(v, r"{}", '\'');
//~^ ERROR: literal with an empty format string
writeln!(
v,
"some {}",
"hello \
//~^ ERROR: literal with an empty format string
world!"
);
writeln!(
v,
"some {}\
{} \\ {}",
"1",
"2",
"3",
//~^ ERROR: literal with an empty format string
);
writeln!(v, "{}", "\\");
//~^ ERROR: literal with an empty format string
writeln!(v, r"{}", "\\");
//~^ ERROR: literal with an empty format string
writeln!(v, r#"{}"#, "\\");
//~^ ERROR: literal with an empty format string
writeln!(v, "{}", r"\");
//~^ ERROR: literal with an empty format string
writeln!(v, "{}", "\r");
//~^ ERROR: literal with an empty format string
// hard mode
writeln!(v, r#"{}{}"#, '#', '"');
//~^ ERROR: literal with an empty format string
//~| ERROR: literal with an empty format string
// should not lint
writeln!(v, r"{}", "\r");
}
|
