Function rustdoc::html::sources::print_src

fn print_src(
    buf: &mut Buffer, 
    s: &str, 
    edition: Edition, 
    file_span: Span, 
    context: &Context<'_>, 
    root_path: &str
)

Wrapper struct to render the source code of a file. This will do things like adding line numbers to the left-hand side.