1226             PathArguments::AngleBracketed(generic) => {  in parse_type_path()
1227                 if ident == "UniquePtr" && generic.args.len() == 1 {  in parse_type_path()
1228                     if let GenericArgument::Type(arg) = &generic.args[0] {  in parse_type_path()
1232                             langle: generic.lt_token,  in parse_type_path()
1234                             rangle: generic.gt_token,  in parse_type_path()
1237                 } else if ident == "SharedPtr" && generic.args.len() == 1 {  in parse_type_path()
1238                     if let GenericArgument::Type(arg) = &generic.args[0] {  in parse_type_path()
1242                             langle: generic.lt_token,  in parse_type_path()
1244                             rangle: generic.gt_token,  in parse_type_path()
1247                 } else if ident == "WeakPtr" && generic.args.len() == 1 {  in parse_type_path()
1248                     if let GenericArgument::Type(arg) = &generic.args[0] {  in parse_type_path()
1252                             langle: generic.lt_token,  in parse_type_path()
1254                             rangle: generic.gt_token,  in parse_type_path()
1257                 } else if ident == "CxxVector" && generic.args.len() == 1 {  in parse_type_path()
1258                     if let GenericArgument::Type(arg) = &generic.args[0] {  in parse_type_path()
1262                             langle: generic.lt_token,  in parse_type_path()
1264                             rangle: generic.gt_token,  in parse_type_path()
1267                 } else if ident == "Box" && generic.args.len() == 1 {  in parse_type_path()
1268                     if let GenericArgument::Type(arg) = &generic.args[0] {  in parse_type_path()
1272                             langle: generic.lt_token,  in parse_type_path()
1274                             rangle: generic.gt_token,  in parse_type_path()
1277                 } else if ident == "Vec" && generic.args.len() == 1 {  in parse_type_path()
1278                     if let GenericArgument::Type(arg) = &generic.args[0] {  in parse_type_path()
1282                             langle: generic.lt_token,  in parse_type_path()
1284                             rangle: generic.gt_token,  in parse_type_path()
1287                 } else if ident == "Pin" && generic.args.len() == 1 {  in parse_type_path()
1288                     if let GenericArgument::Type(arg) = &generic.args[0] {  in parse_type_path()
1294                                 Some((pin_token, generic.lt_token, generic.gt_token));  in parse_type_path()
1301                     for pair in generic.args.pairs() {  in parse_type_path()
1317                                 lt_token: Some(generic.lt_token),  in parse_type_path()
1319                                 gt_token: Some(generic.gt_token),  in parse_type_path()
1453             if let PathArguments::AngleBracketed(generic) = &segment.arguments {  in parse_return_type()
1454                 if ident == "Result" && generic.args.len() == 1 {  in parse_return_type()
1455                     if let GenericArgument::Type(arg) = &generic.args[0] {  in parse_return_type()
1458                             Some((kw::Result(ident.span()), generic.lt_token, generic.gt_token));  in parse_return_type()