types.rs

pub fn rewrite_path(context: &RewriteContext,
                    expr_context: bool,
                    qself: Option<&ast::QSelf>,
                    path: &ast::Path,
                    width: usize,
                    offset: Indent)
                    -> Option<String> {
    let skip_count = qself.map_or(0, |x| x.position);

    let mut result = if path.global && qself.is_none() {
        if path.segments.len() == 0 {
            Some(String::new())
        } else {
            Some("::".to_owned())
        }
    } else {
        None
    };