src/tools/clippy/tests/ui/print.rs

   1
   2
   3 #![allow(print_literal, write_literal)]
   4 #![warn(print_stdout, use_debug)]
   5
   6 use std::fmt::{Debug, Display, Formatter, Result};
   7
   8 #[allow(dead_code)]
   9 struct Foo;
  10
  11 impl Display for Foo {
  12     fn fmt(&self, f: &mut Formatter) -> Result {
  13         write!(f, "{:?}", 43.1415)
  14     }
  15 }
  16
  17 impl Debug for Foo {
  18     fn fmt(&self, f: &mut Formatter) -> Result {
  19         // ok, we can use `Debug` formatting in `Debug` implementations
  20         write!(f, "{:?}", 42.718)
  21     }
  22 }
  23
  24 fn main() {
  25     println!("Hello");
  26     print!("Hello");
  27
  28     print!("Hello {}", "World");
  29
  30     print!("Hello {:?}", "World");
  31
  32     print!("Hello {:#?}", "#orld");
  33
  34     assert_eq!(42, 1337);
  35
  36     vec![1, 2];
  37 }