Debug struct
examples/struct/debugging-struct/src/main.rs
use std::fmt; struct Animal<'a> { name: &'a str, size: &'a str, weight: i32, } impl std::fmt::Debug for Animal<'_> { fn fmt(&self, format: &mut fmt::Formatter<'_>) -> fmt::Result { write!(format, "Animal {{ name: {}, size: {}, weight: {} }}", self.name, self.size, self.weight) } } fn main() { let eli = Animal {name: "elephant", size: "huge", weight: 100}; println!("{}", eli.name); println!("{}", eli.size); println!("{}", eli.weight); println!("{:?}", eli); dbg!(eli); }
elephant huge 100 Animal { name: elephant, size: huge, weight: 100 } [src/main.rs:23] eli = Animal { name: elephant, size: huge, weight: 100 }