Function rustdoc::html::render::document_short

fn document_short(
    w: &mut Buffer, 
    item: &Item, 
    cx: &Context<'_>, 
    link: AssocItemLink<'_>, 
    prefix: &str, 
    is_hidden: bool, 
    parent: Option<&Item>, 
    show_def_docs: bool
)

Writes a documentation block containing only the first paragraph of the documentation. If the docs are longer, a “Read more” link is appended to the end.