102     fn index(&self, position: Position) -> usize {  in index()  argument
106             Position::AfterScheme => self.scheme_end as usize,  in index()
110                     self.scheme_end as usize + "://".len()  in index()
114                     self.scheme_end as usize + ":".len()  in index()
118             Position::AfterUsername => self.username_end as usize,  in index()
122                     self.username_end as usize + ":".len()  in index()
125                     self.username_end as usize  in index()
132                     self.host_start as usize - "@".len()  in index()
135                     self.host_start as usize  in index()
139             Position::BeforeHost => self.host_start as usize,  in index()
141             Position::AfterHost => self.host_end as usize,  in index()
146                     self.host_end as usize + ":".len()  in index()
148                     self.host_end as usize  in index()
152             Position::AfterPort => self.path_start as usize,  in index()
154             Position::BeforePath => self.path_start as usize,  in index()
157                 (Some(q), _) => q as usize,  in index()
158                 (None, Some(f)) => f as usize,  in index()
165                     q as usize + "?".len()  in index()
167                 (None, Some(f)) => f as usize,  in index()
173                 Some(f) => f as usize,  in index()
179                     f as usize + "#".len()  in index()