Type Alias Span 

pub type Span<'input> = Result<(usize, Tok<'input>, usize), LexError>;

Aliased Type

pub enum Span<'input> {
    Ok((usize, Tok<'input>, usize)),
    Err(LexError),
}

Variants

Ok((usize, Tok<'input>, usize))

Contains the success value

Err(LexError)

Contains the error value