mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-12-22 02:53:20 +00:00
68 lines
2.5 KiB
Rust
68 lines
2.5 KiB
Rust
#![warn(clippy::print_literal)]
|
|
#![allow(clippy::uninlined_format_args)]
|
|
|
|
fn main() {
|
|
// these should be fine
|
|
print!("Hello");
|
|
println!("Hello");
|
|
let world = "world";
|
|
println!("Hello {}", world);
|
|
println!("Hello {world}", world = world);
|
|
println!("3 in hex is {:X}", 3);
|
|
println!("2 + 1 = {:.4}", 3);
|
|
println!("2 + 1 = {:5.4}", 3);
|
|
println!("Debug test {:?}", "hello, world");
|
|
println!("{0:8} {1:>8}", "hello", "world");
|
|
println!("{1:8} {0:>8}", "hello", "world");
|
|
println!("{foo:8} {bar:>8}", foo = "hello", bar = "world");
|
|
println!("{bar:8} {foo:>8}", foo = "hello", bar = "world");
|
|
println!("{number:>width$}", number = 1, width = 6);
|
|
println!("{number:>0width$}", number = 1, width = 6);
|
|
println!("{} of {:b} people know binary, the other half doesn't", 1, 2);
|
|
println!("10 / 4 is {}", 2.5);
|
|
println!("2 + 1 = {}", 3);
|
|
println!("From expansion {}", stringify!(not a string literal));
|
|
|
|
// these should throw warnings
|
|
print!("Hello world");
|
|
//~^ ERROR: literal with an empty format string
|
|
//~| NOTE: `-D clippy::print-literal` implied by `-D warnings`
|
|
println!("Hello {} world", world);
|
|
//~^ ERROR: literal with an empty format string
|
|
println!("Hello world");
|
|
//~^ ERROR: literal with an empty format string
|
|
println!("a literal {:.4}", 5);
|
|
//~^ ERROR: literal with an empty format string
|
|
|
|
// positional args don't change the fact
|
|
// that we're using a literal -- this should
|
|
// throw a warning
|
|
println!("hello world");
|
|
//~^ ERROR: literal with an empty format string
|
|
println!("world hello");
|
|
//~^ ERROR: literal with an empty format string
|
|
|
|
// named args shouldn't change anything either
|
|
println!("hello world");
|
|
//~^ ERROR: literal with an empty format string
|
|
println!("world hello");
|
|
//~^ ERROR: literal with an empty format string
|
|
|
|
// The string literal from `file!()` has a callsite span that isn't marked as coming from an
|
|
// expansion
|
|
println!("file: {}", file!());
|
|
|
|
// Braces in unicode escapes should not be escaped
|
|
println!("{{}} \x00 \u{ab123} \\\u{ab123} {{:?}}");
|
|
println!("\\\u{1234}");
|
|
// This does not lint because it would have to suggest unescaping the character
|
|
println!(r"{}", "\u{ab123}");
|
|
// These are not unicode escapes
|
|
println!("\\u{{ab123}} \\u{{{{");
|
|
println!(r"\u{{ab123}} \u{{{{");
|
|
println!("\\{{ab123}} \\u{{{{");
|
|
println!("\\u{{ab123}}");
|
|
println!("\\\\u{{1234}}");
|
|
|
|
println!("mixed: {{hello}} {world}");
|
|
}
|