Function rustdoc::html::highlight::render_source_with_highlighting

pub(crate) fn render_source_with_highlighting(
    src: &str,
    out: &mut Buffer,
    line_numbers: Buffer,
    href_context: HrefContext<'_, '_>,
    decoration_info: DecorationInfo,
    extra: Option<&str>
)

Highlights src as a source code page, returning the HTML output.