std::fmt::Debug
Trait std::fmt::Debug
#[lang = "debug_trait"]
pub trait Debug {
fn fmt(&self, f: &mut Formatter) -> Result<(), Error>;
}
Format trait for the ? character.
Debug should format the output in a programmer-facing, debugging context.
Generally speaking, you should just derive a Debug implementation.
When used with the alternate format specifier #?, the output is pretty-printed.
For more information on formatters, see the module-level documentation-
This trait can be used with .html?lang=en#[derive] if all fields implement Debug. When derived for structs, it will use the name of the struct, then {, then a comma-separated list of each field's name and Debug value, then }. For