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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!("{} {:.4}", "a literal", 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!("{0} {1}", "hello", "world");
//~^ ERROR: literal with an empty format string
println!("{1} {0}", "hello", "world");
//~^ ERROR: literal with an empty format string
// named args shouldn't change anything either
println!("{foo} {bar}", foo = "hello", bar = "world");
//~^ ERROR: literal with an empty format string
println!("{bar} {foo}", foo = "hello", bar = "world");
//~^ 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!("{}", r"\u{ab123} \u{{");
println!(r"{}", r"\u{ab123} \u{{");
println!("{}", r"\{ab123} \u{{");
println!("{}", "\\u{ab123}");
println!("{}", "\\\\u{1234}");
println!("mixed: {} {world}", "{hello}");
}
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