pub struct DebugTuple<'a, 'b>where
'b: 'a,{ /* private fields */ }Expand description
A struct to help with fmt::Debug implementations.
This is useful when you wish to output a formatted tuple as a part of your
Debug::fmt implementation.
This can be constructed by the Formatter::debug_tuple method.
§Examples
use std::fmt;
struct Foo(i32, String);
impl fmt::Debug for Foo {
fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
fmt.debug_tuple("Foo")
.field(&self.0)
.field(&self.1)
.finish()
}
}
assert_eq!(
format!("{:?}", Foo(10, "Hello World".to_string())),
r#"Foo(10, "Hello World")"#,
);