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#![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}");
}
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