rust/tests/ui/format.rs
2017-02-08 14:58:07 +01:00

35 lines
924 B
Rust
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

#![feature(plugin)]
#![plugin(clippy)]
#![deny(useless_format)]
fn main() {
format!("foo");
format!("{}", "foo");
format!("{:?}", "foo"); // we only want to warn about `{}`
format!("{:+}", "foo"); // we only want to warn about `{}`
format!("foo {}", "bar");
format!("{} bar", "foo");
let arg: String = "".to_owned();
format!("{}", arg);
format!("{:?}", arg); // we only want to warn about `{}`
format!("{:+}", arg); // we only want to warn about `{}`
format!("foo {}", arg);
format!("{} bar", arg);
// we dont want to warn for non-string args, see #697
format!("{}", 42);
format!("{:?}", 42);
format!("{:+}", 42);
format!("foo {}", 42);
format!("{} bar", 42);
// we only want to warn about `format!` itself
println!("foo");
println!("{}", "foo");
println!("foo {}", "foo");
println!("{}", 42);
println!("foo {}", 42);
}