Derive Macro Required 

#[derive(Required)]
{
    // Attributes available to this derive:
    #[required]
}

Constructs a struct with all fields of the original struct set to required.

Example

#[derive(Required)]
#[required(ident = RequiredArticle, derive(Debug))]
pub struct Article {
    author: String,
    content: Option<String>,
}

The above code will generate the following struct:

#[derive(Debug)]
pub struct RequiredArticle {
    author: String,
    content: String,
}

Attributes

#[derive(Required)]
#[required(
    ident = <IDENT>, // The identifier of the generated struct
    [derive(<DERIVE>, ...)], // Derive attributes for the generated struct
    [forward_attrs(<ATTR, ...> | not(<ATTR, ...>))], // Forward specific attributes to the generated struct
)]
pub struct BasedStruct {
    #[required(
        [forward_attrs(<ATTR, ...> | not(<ATTR, ...>))], // Forward specific attributes to the generated field
            // If given, will override the container level `forward_attrs`
    )]
    field: FieldType,
}