Module __proc_macro_support 

Traits

Debug

? formatting.

Display

Format trait for an empty format, {}.

Error

Error is a trait representing the basic expectations for error values, i.e., values of type E in Result<T, E>.

Derive Macros

Debug

Derive macro generating an impl of the trait Debug.

Display

Custom #[derive(...)] macro for implementing [fmt::Display][core::fmt::Display] via doc comment attributes.