-#![allow(unused_must_use)]
-#![warn(write_literal)]
+#![warn(clippy::write_literal)]
+#![allow(clippy::uninlined_format_args, unused_must_use)]
use std::io::Write;
let mut v = Vec::new();
// these should be fine
- write!(&mut v, "Hello");
- writeln!(&mut v, "Hello");
+ write!(v, "Hello");
+ writeln!(v, "Hello");
let world = "world";
- writeln!(&mut v, "Hello {}", world);
- writeln!(&mut v, "Hello {world}", world);
- writeln!(&mut v, "3 in hex is {:X}", 3);
- writeln!(&mut v, "2 + 1 = {:.4}", 3);
- writeln!(&mut v, "2 + 1 = {:5.4}", 3);
- writeln!(&mut v, "Debug test {:?}", "hello, world");
- writeln!(&mut v, "{0:8} {1:>8}", "hello", "world");
- writeln!(&mut v, "{1:8} {0:>8}", "hello", "world");
- writeln!(&mut v, "{foo:8} {bar:>8}", foo="hello", bar="world");
- writeln!(&mut v, "{bar:8} {foo:>8}", foo="hello", bar="world");
- writeln!(&mut v, "{number:>width$}", number=1, width=6);
- writeln!(&mut v, "{number:>0width$}", number=1, width=6);
+ writeln!(v, "Hello {}", world);
+ writeln!(v, "Hello {world}", world = world);
+ writeln!(v, "3 in hex is {:X}", 3);
+ writeln!(v, "2 + 1 = {:.4}", 3);
+ writeln!(v, "2 + 1 = {:5.4}", 3);
+ writeln!(v, "Debug test {:?}", "hello, world");
+ writeln!(v, "{0:8} {1:>8}", "hello", "world");
+ writeln!(v, "{1:8} {0:>8}", "hello", "world");
+ writeln!(v, "{foo:8} {bar:>8}", foo = "hello", bar = "world");
+ writeln!(v, "{bar:8} {foo:>8}", foo = "hello", bar = "world");
+ writeln!(v, "{number:>width$}", number = 1, width = 6);
+ writeln!(v, "{number:>0width$}", number = 1, width = 6);
+ writeln!(v, "{} of {:b} people know binary, the other half doesn't", 1, 2);
+ writeln!(v, "10 / 4 is {}", 2.5);
+ writeln!(v, "2 + 1 = {}", 3);
+ writeln!(v, "From expansion {}", stringify!(not a string literal));
// these should throw warnings
- writeln!(&mut v, "{} of {:b} people know binary, the other half doesn't", 1, 2);
- write!(&mut v, "Hello {}", "world");
- writeln!(&mut v, "Hello {} {}", world, "world");
- writeln!(&mut v, "Hello {}", "world");
- writeln!(&mut v, "10 / 4 is {}", 2.5);
- writeln!(&mut v, "2 + 1 = {}", 3);
+ write!(v, "Hello {}", "world");
+ writeln!(v, "Hello {} {}", world, "world");
+ writeln!(v, "Hello {}", "world");
+ writeln!(v, "{} {:.4}", "a literal", 5);
// positional args don't change the fact
// that we're using a literal -- this should
// throw a warning
- writeln!(&mut v, "{0} {1}", "hello", "world");
- writeln!(&mut v, "{1} {0}", "hello", "world");
+ writeln!(v, "{0} {1}", "hello", "world");
+ writeln!(v, "{1} {0}", "hello", "world");
// named args shouldn't change anything either
- writeln!(&mut v, "{foo} {bar}", foo="hello", bar="world");
- writeln!(&mut v, "{bar} {foo}", foo="hello", bar="world");
+ writeln!(v, "{foo} {bar}", foo = "hello", bar = "world");
+ writeln!(v, "{bar} {foo}", foo = "hello", bar = "world");
}