Disable formatting and add new-lines to make tests faster.

test/dart_codegen/expect/core/uri.dart

 part of dart.core;
-
-class Uri {
-  final String _host;
-  num _port;
-  String _path;
-  final String scheme;
-  String get authority {
-    if (!hasAuthority) return "";
-    var sb = new StringBuffer();
-    _writeAuthority(sb);
-    return sb.toString();
-  }
-  final String _userInfo;
-  String get userInfo => _userInfo;
-  String get host {
-    if (_host == null) return "";
-    if (_host.startsWith('[')) {
-      return _host.substring(1, _host.length - 1);
-    }
-    return _host;
-  }
-  int get port {
-    if (_port == null) return _defaultPort(scheme);
-    return DDC$RT.cast(_port, num, int, "CastGeneral",
-        """line 94, column 12 of dart:core/uri.dart: """, _port is int, true);
-  }
-  static int _defaultPort(String scheme) {
-    if (scheme == "http") return 80;
-    if (scheme == "https") return 443;
-    return 0;
-  }
-  String get path => _path;
-  final String _query;
-  String get query => (_query == null) ? "" : _query;
-  final String _fragment;
-  String get fragment => (_fragment == null) ? "" : _fragment;
-  List<String> _pathSegments;
-  Map<String, String> _queryParameters;
-  static Uri parse(String uri) {
-    bool isRegName(int ch) {
-      return ch < 128 && ((_regNameTable[ch >> 4] & (1 << (ch & 0x0f))) != 0);
-    }
-    const int EOI = -1;
-    String scheme = "";
-    String userinfo = "";
-    String host = null;
-    num port = null;
-    String path = null;
-    String query = null;
-    String fragment = null;
-    int index = 0;
-    int pathStart = 0;
-    int char = EOI;
-    void parseAuth() {
-      if (index == uri.length) {
+ class Uri {final String _host;
+ num _port;
+ String _path;
+ final String scheme;
+ String get authority {
+  if (!hasAuthority) return "";
+   var sb = new StringBuffer();
+   _writeAuthority(sb);
+   return sb.toString();
+  }
+ final String _userInfo;
+ String get userInfo => _userInfo;
+ String get host {
+  if (_host == null) return "";
+   if (_host.startsWith('[')) {
+    return _host.substring(1, _host.length - 1);
+    }
+   return _host;
+  }
+ int get port {
+  if (_port == null) return _defaultPort(scheme);
+   return DDC$RT.cast(_port, num, int, "CastGeneral", """line 94, column 12 of dart:core/uri.dart: """, _port is int, true);
+  }
+ static int _defaultPort(String scheme) {
+  if (scheme == "http") return 80;
+   if (scheme == "https") return 443;
+   return 0;
+  }
+ String get path => _path;
+ final String _query;
+ String get query => (_query == null) ? "" : _query;
+ final String _fragment;
+ String get fragment => (_fragment == null) ? "" : _fragment;
+ List<String> _pathSegments;
+ Map<String, String> _queryParameters;
+ static Uri parse(String uri) {
+  bool isRegName(int ch) {
+    return ch < 128 && ((_regNameTable[ch >> 4] & (1 << (ch & 0x0f))) != 0);
+    }
+   const int EOI = -1;
+   String scheme = "";
+   String userinfo = "";
+   String host = null;
+   num port = null;
+   String path = null;
+   String query = null;
+   String fragment = null;
+   int index = 0;
+   int pathStart = 0;
+   int char = EOI;
+   void parseAuth() {
+    if (index == uri.length) {
+      char = EOI;
+       return;}
+     int authStart = index;
+     int lastColon = -1;
+     int lastAt = -1;
+     char = uri.codeUnitAt(index);
+     while (index < uri.length) {
+      char = uri.codeUnitAt(index);
+       if (char == _SLASH || char == _QUESTION || char == _NUMBER_SIGN) {
+        break;
+        }
+       if (char == _AT_SIGN) {
+        lastAt = index;
+         lastColon = -1;
+        }
+       else if (char == _COLON) {
+        lastColon = index;
+        }
+       else if (char == _LEFT_BRACKET) {
+        lastColon = -1;
+         int endBracket = uri.indexOf(']', index + 1);
+         if (endBracket == -1) {
+          index = uri.length;
+           char = EOI;
+           break;
+          }
+         else {
+          index = endBracket;
+          }
+        }
+       index++;
+       char = EOI;
+      }
+     int hostStart = authStart;
+     int hostEnd = index;
+     if (lastAt >= 0) {
+      userinfo = _makeUserInfo(uri, authStart, lastAt);
+       hostStart = lastAt + 1;
+      }
+     if (lastColon >= 0) {
+      int portNumber;
+       if (lastColon + 1 < index) {
+        portNumber = 0;
+         for (int i = lastColon + 1;
+         i < index;
+         i++) {
+          int digit = uri.codeUnitAt(i);
+           if (_ZERO > digit || _NINE < digit) {
+            _fail(uri, i, "Invalid port number");
+            }
+           portNumber = portNumber * 10 + (digit - _ZERO);
+          }
+        }
+       port = _makePort(portNumber, scheme);
+       hostEnd = lastColon;
+      }
+     host = _makeHost(uri, hostStart, hostEnd, true);
+     if (index < uri.length) {
+      char = uri.codeUnitAt(index);
+      }
+    }
+   const int NOT_IN_PATH = 0;
+   const int IN_PATH = 1;
+   const int ALLOW_AUTH = 2;
+   int state = NOT_IN_PATH;
+   int i = index;
+   while (i < uri.length) {
+    char = uri.codeUnitAt(i);
+     if (char == _QUESTION || char == _NUMBER_SIGN) {
+      state = NOT_IN_PATH;
+       break;
+      }
+     if (char == _SLASH) {
+      state = (i == 0) ? ALLOW_AUTH : IN_PATH;
+       break;
+      }
+     if (char == _COLON) {
+      if (i == 0) _fail(uri, 0, "Invalid empty scheme");
+       scheme = _makeScheme(uri, i);
+       i++;
+       pathStart = i;
+       if (i == uri.length) {
         char = EOI;
-        return;
-      }
-      int authStart = index;
-      int lastColon = -1;
-      int lastAt = -1;
+         state = NOT_IN_PATH;
+        }
+       else {
+        char = uri.codeUnitAt(i);
+         if (char == _QUESTION || char == _NUMBER_SIGN) {
+          state = NOT_IN_PATH;
+          }
+         else if (char == _SLASH) {
+          state = ALLOW_AUTH;
+          }
+         else {
+          state = IN_PATH;
+          }
+        }
+       break;
+      }
+     i++;
+     char = EOI;
+    }
+   index = i;
+   if (state == ALLOW_AUTH) {
+    assert (char == _SLASH); index++;
+     if (index == uri.length) {
+      char = EOI;
+       state = NOT_IN_PATH;
+      }
+     else {
       char = uri.codeUnitAt(index);
-      while (index < uri.length) {
-        char = uri.codeUnitAt(index);
-        if (char == _SLASH || char == _QUESTION || char == _NUMBER_SIGN) {
-          break;
-        }
-        if (char == _AT_SIGN) {
-          lastAt = index;
-          lastColon = -1;
-        } else if (char == _COLON) {
-          lastColon = index;
-        } else if (char == _LEFT_BRACKET) {
-          lastColon = -1;
-          int endBracket = uri.indexOf(']', index + 1);
-          if (endBracket == -1) {
-            index = uri.length;
-            char = EOI;
-            break;
-          } else {
-            index = endBracket;
-          }
-        }
+       if (char == _SLASH) {
         index++;
-        char = EOI;
-      }
-      int hostStart = authStart;
-      int hostEnd = index;
-      if (lastAt >= 0) {
-        userinfo = _makeUserInfo(uri, authStart, lastAt);
-        hostStart = lastAt + 1;
-      }
-      if (lastColon >= 0) {
-        int portNumber;
-        if (lastColon + 1 < index) {
-          portNumber = 0;
-          for (int i = lastColon + 1; i < index; i++) {
-            int digit = uri.codeUnitAt(i);
-            if (_ZERO > digit || _NINE < digit) {
-              _fail(uri, i, "Invalid port number");
-            }
-            portNumber = portNumber * 10 + (digit - _ZERO);
-          }
-        }
-        port = _makePort(portNumber, scheme);
-        hostEnd = lastColon;
-      }
-      host = _makeHost(uri, hostStart, hostEnd, true);
-      if (index < uri.length) {
-        char = uri.codeUnitAt(index);
-      }
-    }
-    const int NOT_IN_PATH = 0;
-    const int IN_PATH = 1;
-    const int ALLOW_AUTH = 2;
-    int state = NOT_IN_PATH;
-    int i = index;
-    while (i < uri.length) {
-      char = uri.codeUnitAt(i);
-      if (char == _QUESTION || char == _NUMBER_SIGN) {
+         parseAuth();
+         pathStart = index;
+        }
+       if (char == _QUESTION || char == _NUMBER_SIGN || char == EOI) {
         state = NOT_IN_PATH;
+        }
+       else {
+        state = IN_PATH;
+        }
+      }
+    }
+   assert (state == IN_PATH || state == NOT_IN_PATH); if (state == IN_PATH) {
+    while (++index < uri.length) {
+      char = uri.codeUnitAt(index);
+       if (char == _QUESTION || char == _NUMBER_SIGN) {
         break;
-      }
-      if (char == _SLASH) {
-        state = (i == 0) ? ALLOW_AUTH : IN_PATH;
-        break;
-      }
-      if (char == _COLON) {
-        if (i == 0) _fail(uri, 0, "Invalid empty scheme");
-        scheme = _makeScheme(uri, i);
-        i++;
-        pathStart = i;
-        if (i == uri.length) {
-          char = EOI;
-          state = NOT_IN_PATH;
-        } else {
-          char = uri.codeUnitAt(i);
-          if (char == _QUESTION || char == _NUMBER_SIGN) {
-            state = NOT_IN_PATH;
-          } else if (char == _SLASH) {
-            state = ALLOW_AUTH;
-          } else {
-            state = IN_PATH;
-          }
-        }
-        break;
-      }
-      i++;
-      char = EOI;
-    }
-    index = i;
-    if (state == ALLOW_AUTH) {
-      assert(char == _SLASH);
-      index++;
-      if (index == uri.length) {
-        char = EOI;
-        state = NOT_IN_PATH;
-      } else {
-        char = uri.codeUnitAt(index);
-        if (char == _SLASH) {
-          index++;
-          parseAuth();
-          pathStart = index;
-        }
-        if (char == _QUESTION || char == _NUMBER_SIGN || char == EOI) {
-          state = NOT_IN_PATH;
-        } else {
-          state = IN_PATH;
-        }
-      }
-    }
-    assert(state == IN_PATH || state == NOT_IN_PATH);
-    if (state == IN_PATH) {
-      while (++index < uri.length) {
-        char = uri.codeUnitAt(index);
-        if (char == _QUESTION || char == _NUMBER_SIGN) {
-          break;
-        }
-        char = EOI;
-      }
-      state = NOT_IN_PATH;
-    }
-    assert(state == NOT_IN_PATH);
-    bool isFile = (scheme == "file");
-    bool ensureLeadingSlash = host != null;
-    path = _makePath(uri, pathStart, index, null, ensureLeadingSlash, isFile);
-    if (char == _QUESTION) {
-      int numberSignIndex = uri.indexOf('#', index + 1);
-      if (numberSignIndex < 0) {
-        query = _makeQuery(uri, index + 1, uri.length, null);
-      } else {
-        query = _makeQuery(uri, index + 1, numberSignIndex, null);
-        fragment = _makeFragment(uri, numberSignIndex + 1, uri.length);
-      }
-    } else if (char == _NUMBER_SIGN) {
-      fragment = _makeFragment(uri, index + 1, uri.length);
-    }
-    return new Uri._internal(
-        scheme, userinfo, host, port, path, query, fragment);
-  }
-  static void _fail(String uri, int index, String message) {
-    throw new FormatException(message, uri, index);
-  }
-  Uri._internal(this.scheme, this._userInfo, this._host, this._port, this._path,
-      this._query, this._fragment);
-  factory Uri({String scheme: "", String userInfo: "", String host, int port,
-      String path, Iterable<String> pathSegments, String query,
-      Map<String, String> queryParameters, String fragment}) {
-    scheme = _makeScheme(scheme, _stringOrNullLength(scheme));
-    userInfo = _makeUserInfo(userInfo, 0, _stringOrNullLength(userInfo));
-    host = _makeHost(host, 0, _stringOrNullLength(host), false);
-    if (query == "") query = null;
-    query = _makeQuery(query, 0, _stringOrNullLength(query), queryParameters);
-    fragment = _makeFragment(fragment, 0, _stringOrNullLength(fragment));
+        }
+       char = EOI;
+      }
+     state = NOT_IN_PATH;
+    }
+   assert (state == NOT_IN_PATH); bool isFile = (scheme == "file");
+   bool ensureLeadingSlash = host != null;
+   path = _makePath(uri, pathStart, index, null, ensureLeadingSlash, isFile);
+   if (char == _QUESTION) {
+    int numberSignIndex = uri.indexOf('#', index + 1);
+     if (numberSignIndex < 0) {
+      query = _makeQuery(uri, index + 1, uri.length, null);
+      }
+     else {
+      query = _makeQuery(uri, index + 1, numberSignIndex, null);
+       fragment = _makeFragment(uri, numberSignIndex + 1, uri.length);
+      }
+    }
+   else if (char == _NUMBER_SIGN) {
+    fragment = _makeFragment(uri, index + 1, uri.length);
+    }
+   return new Uri._internal(scheme, userinfo, host, port, path, query, fragment);
+  }
+ static void _fail(String uri, int index, String message) {
+  throw new FormatException(message, uri, index);
+  }
+ Uri._internal(this.scheme, this._userInfo, this._host, this._port, this._path, this._query, this._fragment);
+ factory Uri({
+  String scheme : "", String userInfo : "", String host, int port, String path, Iterable<String> pathSegments, String query, Map<String, String> queryParameters, String fragment}
+) {
+  scheme = _makeScheme(scheme, _stringOrNullLength(scheme));
+   userInfo = _makeUserInfo(userInfo, 0, _stringOrNullLength(userInfo));
+   host = _makeHost(host, 0, _stringOrNullLength(host), false);
+   if (query == "") query = null;
+   query = _makeQuery(query, 0, _stringOrNullLength(query), queryParameters);
+   fragment = _makeFragment(fragment, 0, _stringOrNullLength(fragment));
+   port = _makePort(port, scheme);
+   bool isFile = (scheme == "file");
+   if (host == null && (userInfo.isNotEmpty || port != null || isFile)) {
+    host = "";
+    }
+   bool ensureLeadingSlash = host != null;
+   path = _makePath(path, 0, _stringOrNullLength(path), pathSegments, ensureLeadingSlash, isFile);
+   return new Uri._internal(scheme, userInfo, host, port, path, query, fragment);
+  }
+ factory Uri.http(String authority, String unencodedPath, [Map<String, String> queryParameters]) {
+  return _makeHttpUri("http", authority, unencodedPath, queryParameters);
+  }
+ factory Uri.https(String authority, String unencodedPath, [Map<String, String> queryParameters]) {
+  return _makeHttpUri("https", authority, unencodedPath, queryParameters);
+  }
+ static Uri _makeHttpUri(String scheme, String authority, String unencodedPath, Map<String, String> queryParameters) {
+  var userInfo = "";
+   var host = null;
+   var port = null;
+   if (authority != null && authority.isNotEmpty) {
+    var hostStart = 0;
+     bool hasUserInfo = false;
+     for (int i = 0;
+     i < authority.length;
+     i++) {
+      if (authority.codeUnitAt(i) == _AT_SIGN) {
+        hasUserInfo = true;
+         userInfo = authority.substring(0, i);
+         hostStart = i + 1;
+         break;
+        }
+      }
+     var hostEnd = hostStart;
+     if (hostStart < authority.length && authority.codeUnitAt(hostStart) == _LEFT_BRACKET) {
+      for (;
+       hostEnd < authority.length;
+       hostEnd++) {
+        if (authority.codeUnitAt(hostEnd) == _RIGHT_BRACKET) break;
+        }
+       if (hostEnd == authority.length) {
+        throw new FormatException("Invalid IPv6 host entry.", authority, hostStart);
+        }
+       parseIPv6Address(authority, hostStart + 1, hostEnd);
+       hostEnd++;
+       if (hostEnd != authority.length && authority.codeUnitAt(hostEnd) != _COLON) {
+        throw new FormatException("Invalid end of authority", authority, hostEnd);
+        }
+      }
+     bool hasPort = false;
+     for (;
+     hostEnd < authority.length;
+     hostEnd++) {
+      if (authority.codeUnitAt(hostEnd) == _COLON) {
+        var portString = authority.substring(hostEnd + 1);
+         if (portString.isNotEmpty) port = int.parse(portString);
+         break;
+        }
+      }
+     host = authority.substring(hostStart, hostEnd);
+    }
+   return new Uri(scheme: scheme, userInfo: userInfo, host: host, port: port, pathSegments: unencodedPath.split("/"), queryParameters: queryParameters);
+  }
+ factory Uri.file(String path, {
+  bool windows}
+) {
+  windows = windows == null ? Uri._isWindows : windows;
+   return ((__x41) => DDC$RT.cast(__x41, dynamic, Uri, "CastGeneral", """line 698, column 12 of dart:core/uri.dart: """, __x41 is Uri, true))(windows ? _makeWindowsFileUrl(path) : _makeFileUri(path));
+  }
+ static Uri get base {
+  String uri = ((__x42) => DDC$RT.cast(__x42, dynamic, String, "CastGeneral", """line 711, column 18 of dart:core/uri.dart: """, __x42 is String, true))(Primitives.currentUri());
+   if (uri != null) return Uri.parse(uri);
+   throw new UnsupportedError("'Uri.base' is not supported");
+  }
+ static bool get _isWindows => false;
+ static _checkNonWindowsPathReservedCharacters(List<String> segments, bool argumentError) {
+  segments.forEach((segment) {
+    if (segment.contains("/")) {
+      if (argumentError) {
+        throw new ArgumentError("Illegal path character $segment");
+        }
+       else {
+        throw new UnsupportedError("Illegal path character $segment");
+        }
+      }
+    }
+  );
+  }
+ static _checkWindowsPathReservedCharacters(List<String> segments, bool argumentError, [int firstSegment = 0]) {
+  segments.skip(firstSegment).forEach((segment) {
+    if (segment.contains(new RegExp(r'["*/:<>?\\|]'))) {
+      if (argumentError) {
+        throw new ArgumentError("Illegal character in path");
+        }
+       else {
+        throw new UnsupportedError("Illegal character in path");
+        }
+      }
+    }
+  );
+  }
+ static _checkWindowsDriveLetter(int charCode, bool argumentError) {
+  if ((_UPPER_CASE_A <= charCode && charCode <= _UPPER_CASE_Z) || (_LOWER_CASE_A <= charCode && charCode <= _LOWER_CASE_Z)) {
+    return;}
+   if (argumentError) {
+    throw new ArgumentError("Illegal drive letter " + new String.fromCharCode(charCode));
+    }
+   else {
+    throw new UnsupportedError("Illegal drive letter " + new String.fromCharCode(charCode));
+    }
+  }
+ static _makeFileUri(String path) {
+  String sep = "/";
+   if (path.startsWith(sep)) {
+    return new Uri(scheme: "file", pathSegments: path.split(sep));
+    }
+   else {
+    return new Uri(pathSegments: path.split(sep));
+    }
+  }
+ static _makeWindowsFileUrl(String path) {
+  if (path.startsWith("\\\\?\\")) {
+    if (path.startsWith("\\\\?\\UNC\\")) {
+      path = "\\${path.substring(7)}
+    ";
+    }
+   else {
+    path = path.substring(4);
+     if (path.length < 3 || path.codeUnitAt(1) != _COLON || path.codeUnitAt(2) != _BACKSLASH) {
+      throw new ArgumentError("Windows paths with \\\\?\\ prefix must be absolute");
+      }
+    }
+  }
+ else {
+  path = path.replaceAll("/", "\\");
+  }
+ String sep = "\\";
+ if (path.length > 1 && path[1] == ":") {
+  _checkWindowsDriveLetter(path.codeUnitAt(0), true);
+   if (path.length == 2 || path.codeUnitAt(2) != _BACKSLASH) {
+    throw new ArgumentError("Windows paths with drive letter must be absolute");
+    }
+   var pathSegments = path.split(sep);
+   _checkWindowsPathReservedCharacters(pathSegments, true, 1);
+   return new Uri(scheme: "file", pathSegments: pathSegments);
+  }
+ if (path.length > 0 && path[0] == sep) {
+  if (path.length > 1 && path[1] == sep) {
+    int pathStart = path.indexOf("\\", 2);
+     String hostPart = pathStart == -1 ? path.substring(2) : path.substring(2, pathStart);
+     String pathPart = pathStart == -1 ? "" : path.substring(pathStart + 1);
+     var pathSegments = pathPart.split(sep);
+     _checkWindowsPathReservedCharacters(pathSegments, true);
+     return new Uri(scheme: "file", host: hostPart, pathSegments: pathSegments);
+    }
+   else {
+    var pathSegments = path.split(sep);
+     _checkWindowsPathReservedCharacters(pathSegments, true);
+     return new Uri(scheme: "file", pathSegments: pathSegments);
+    }
+  }
+ else {
+  var pathSegments = path.split(sep);
+   _checkWindowsPathReservedCharacters(pathSegments, true);
+   return new Uri(pathSegments: pathSegments);
+  }
+}
+ Uri replace({
+String scheme, String userInfo, String host, int port, String path, Iterable<String> pathSegments, String query, Map<String, String> queryParameters, String fragment}
+) {
+bool schemeChanged = false;
+ if (scheme != null) {
+  scheme = _makeScheme(scheme, scheme.length);
+   schemeChanged = true;
+  }
+ else {
+  scheme = this.scheme;
+  }
+ bool isFile = (scheme == "file");
+ if (userInfo != null) {
+  userInfo = _makeUserInfo(userInfo, 0, userInfo.length);
+  }
+ else {
+  userInfo = this.userInfo;
+  }
+ if (port != null) {
+  port = _makePort(port, scheme);
+  }
+ else {
+  port = ((__x43) => DDC$RT.cast(__x43, num, int, "CastGeneral", """line 893, column 14 of dart:core/uri.dart: """, __x43 is int, true))(this._port);
+   if (schemeChanged) {
     port = _makePort(port, scheme);
-    bool isFile = (scheme == "file");
-    if (host == null && (userInfo.isNotEmpty || port != null || isFile)) {
-      host = "";
-    }
-    bool ensureLeadingSlash = host != null;
-    path = _makePath(path, 0, _stringOrNullLength(path), pathSegments,
-        ensureLeadingSlash, isFile);
-    return new Uri._internal(
-        scheme, userInfo, host, port, path, query, fragment);
-  }
-  factory Uri.http(String authority, String unencodedPath,
-      [Map<String, String> queryParameters]) {
-    return _makeHttpUri("http", authority, unencodedPath, queryParameters);
-  }
-  factory Uri.https(String authority, String unencodedPath,
-      [Map<String, String> queryParameters]) {
-    return _makeHttpUri("https", authority, unencodedPath, queryParameters);
-  }
-  static Uri _makeHttpUri(String scheme, String authority, String unencodedPath,
-      Map<String, String> queryParameters) {
-    var userInfo = "";
-    var host = null;
-    var port = null;
-    if (authority != null && authority.isNotEmpty) {
-      var hostStart = 0;
-      bool hasUserInfo = false;
-      for (int i = 0; i < authority.length; i++) {
-        if (authority.codeUnitAt(i) == _AT_SIGN) {
-          hasUserInfo = true;
-          userInfo = authority.substring(0, i);
-          hostStart = i + 1;
-          break;
-        }
-      }
-      var hostEnd = hostStart;
-      if (hostStart < authority.length &&
-          authority.codeUnitAt(hostStart) == _LEFT_BRACKET) {
-        for (; hostEnd < authority.length; hostEnd++) {
-          if (authority.codeUnitAt(hostEnd) == _RIGHT_BRACKET) break;
-        }
-        if (hostEnd == authority.length) {
-          throw new FormatException(
-              "Invalid IPv6 host entry.", authority, hostStart);
-        }
-        parseIPv6Address(authority, hostStart + 1, hostEnd);
-        hostEnd++;
-        if (hostEnd != authority.length &&
-            authority.codeUnitAt(hostEnd) != _COLON) {
-          throw new FormatException(
-              "Invalid end of authority", authority, hostEnd);
-        }
-      }
-      bool hasPort = false;
-      for (; hostEnd < authority.length; hostEnd++) {
-        if (authority.codeUnitAt(hostEnd) == _COLON) {
-          var portString = authority.substring(hostEnd + 1);
-          if (portString.isNotEmpty) port = int.parse(portString);
-          break;
-        }
-      }
-      host = authority.substring(hostStart, hostEnd);
-    }
-    return new Uri(
-        scheme: scheme,
-        userInfo: userInfo,
-        host: host,
-        port: port,
-        pathSegments: unencodedPath.split("/"),
-        queryParameters: queryParameters);
-  }
-  factory Uri.file(String path, {bool windows}) {
-    windows = windows == null ? Uri._isWindows : windows;
-    return ((__x41) => DDC$RT.cast(__x41, dynamic, Uri, "CastGeneral",
-        """line 698, column 12 of dart:core/uri.dart: """, __x41 is Uri,
-        true))(windows ? _makeWindowsFileUrl(path) : _makeFileUri(path));
-  }
-  static Uri get base {
-    String uri = ((__x42) => DDC$RT.cast(__x42, dynamic, String, "CastGeneral",
-        """line 711, column 18 of dart:core/uri.dart: """, __x42 is String,
-        true))(Primitives.currentUri());
-    if (uri != null) return Uri.parse(uri);
-    throw new UnsupportedError("'Uri.base' is not supported");
-  }
-  static bool get _isWindows => false;
-  static _checkNonWindowsPathReservedCharacters(
-      List<String> segments, bool argumentError) {
-    segments.forEach((segment) {
-      if (segment.contains("/")) {
-        if (argumentError) {
-          throw new ArgumentError("Illegal path character $segment");
-        } else {
-          throw new UnsupportedError("Illegal path character $segment");
-        }
-      }
-    });
-  }
-  static _checkWindowsPathReservedCharacters(
-      List<String> segments, bool argumentError, [int firstSegment = 0]) {
-    segments.skip(firstSegment).forEach((segment) {
-      if (segment.contains(new RegExp(r'["*/:<>?\\|]'))) {
-        if (argumentError) {
-          throw new ArgumentError("Illegal character in path");
-        } else {
-          throw new UnsupportedError("Illegal character in path");
-        }
-      }
-    });
-  }
-  static _checkWindowsDriveLetter(int charCode, bool argumentError) {
-    if ((_UPPER_CASE_A <= charCode && charCode <= _UPPER_CASE_Z) ||
-        (_LOWER_CASE_A <= charCode && charCode <= _LOWER_CASE_Z)) {
-      return;
-    }
-    if (argumentError) {
-      throw new ArgumentError(
-          "Illegal drive letter " + new String.fromCharCode(charCode));
-    } else {
-      throw new UnsupportedError(
-          "Illegal drive letter " + new String.fromCharCode(charCode));
-    }
-  }
-  static _makeFileUri(String path) {
-    String sep = "/";
-    if (path.startsWith(sep)) {
-      return new Uri(scheme: "file", pathSegments: path.split(sep));
-    } else {
-      return new Uri(pathSegments: path.split(sep));
-    }
-  }
-  static _makeWindowsFileUrl(String path) {
-    if (path.startsWith("\\\\?\\")) {
-      if (path.startsWith("\\\\?\\UNC\\")) {
-        path = "\\${path.substring(7)}";
-      } else {
-        path = path.substring(4);
-        if (path.length < 3 ||
-            path.codeUnitAt(1) != _COLON ||
-            path.codeUnitAt(2) != _BACKSLASH) {
-          throw new ArgumentError(
-              "Windows paths with \\\\?\\ prefix must be absolute");
-        }
-      }
-    } else {
-      path = path.replaceAll("/", "\\");
-    }
-    String sep = "\\";
-    if (path.length > 1 && path[1] == ":") {
-      _checkWindowsDriveLetter(path.codeUnitAt(0), true);
-      if (path.length == 2 || path.codeUnitAt(2) != _BACKSLASH) {
-        throw new ArgumentError(
-            "Windows paths with drive letter must be absolute");
-      }
-      var pathSegments = path.split(sep);
-      _checkWindowsPathReservedCharacters(pathSegments, true, 1);
-      return new Uri(scheme: "file", pathSegments: pathSegments);
-    }
-    if (path.length > 0 && path[0] == sep) {
-      if (path.length > 1 && path[1] == sep) {
-        int pathStart = path.indexOf("\\", 2);
-        String hostPart =
-            pathStart == -1 ? path.substring(2) : path.substring(2, pathStart);
-        String pathPart = pathStart == -1 ? "" : path.substring(pathStart + 1);
-        var pathSegments = pathPart.split(sep);
-        _checkWindowsPathReservedCharacters(pathSegments, true);
-        return new Uri(
-            scheme: "file", host: hostPart, pathSegments: pathSegments);
-      } else {
-        var pathSegments = path.split(sep);
-        _checkWindowsPathReservedCharacters(pathSegments, true);
-        return new Uri(scheme: "file", pathSegments: pathSegments);
-      }
-    } else {
-      var pathSegments = path.split(sep);
-      _checkWindowsPathReservedCharacters(pathSegments, true);
-      return new Uri(pathSegments: pathSegments);
-    }
-  }
-  Uri replace({String scheme, String userInfo, String host, int port,
-      String path, Iterable<String> pathSegments, String query,
-      Map<String, String> queryParameters, String fragment}) {
-    bool schemeChanged = false;
-    if (scheme != null) {
-      scheme = _makeScheme(scheme, scheme.length);
-      schemeChanged = true;
-    } else {
-      scheme = this.scheme;
-    }
-    bool isFile = (scheme == "file");
-    if (userInfo != null) {
-      userInfo = _makeUserInfo(userInfo, 0, userInfo.length);
-    } else {
-      userInfo = this.userInfo;
-    }
-    if (port != null) {
-      port = _makePort(port, scheme);
-    } else {
-      port = ((__x43) => DDC$RT.cast(__x43, num, int, "CastGeneral",
-          """line 893, column 14 of dart:core/uri.dart: """, __x43 is int,
-          true))(this._port);
-      if (schemeChanged) {
-        port = _makePort(port, scheme);
-      }
-    }
-    if (host != null) {
-      host = _makeHost(host, 0, host.length, false);
-    } else if (this.hasAuthority) {
-      host = this.host;
-    } else if (userInfo.isNotEmpty || port != null || isFile) {
-      host = "";
-    }
-    bool ensureLeadingSlash = (host != null);
-    if (path != null || pathSegments != null) {
-      path = _makePath(path, 0, _stringOrNullLength(path), pathSegments,
-          ensureLeadingSlash, isFile);
-    } else {
-      path = this.path;
-      if ((isFile || (ensureLeadingSlash && !path.isEmpty)) &&
-          !path.startsWith('/')) {
-        path = "/$path";
-      }
-    }
-    if (query != null || queryParameters != null) {
-      query = _makeQuery(query, 0, _stringOrNullLength(query), queryParameters);
-    } else if (this.hasQuery) {
-      query = this.query;
-    }
-    if (fragment != null) {
-      fragment = _makeFragment(fragment, 0, fragment.length);
-    } else if (this.hasFragment) {
-      fragment = this.fragment;
-    }
-    return new Uri._internal(
-        scheme, userInfo, host, port, path, query, fragment);
-  }
-  List<String> get pathSegments {
-    if (_pathSegments == null) {
-      var pathToSplit = !path.isEmpty && path.codeUnitAt(0) == _SLASH
-          ? path.substring(1)
-          : path;
-      _pathSegments = ((__x44) => DDC$RT.cast(__x44,
-              DDC$RT.type((DDC$collection$.UnmodifiableListView<dynamic> _) {}),
-              DDC$RT.type((List<String> _) {}), "CastExact",
-              """line 949, column 23 of dart:core/uri.dart: """,
-              __x44 is List<String>, false))(new UnmodifiableListView(
-          pathToSplit == ""
-              ? const <String>[]
-              : pathToSplit
-                  .split("/")
-                  .map(Uri.decodeComponent)
-                  .toList(growable: false)));
-    }
-    return _pathSegments;
-  }
-  Map<String, String> get queryParameters {
-    if (_queryParameters == null) {
-      _queryParameters = ((__x45) => DDC$RT.cast(__x45, DDC$RT.type(
-              (DDC$collection$.UnmodifiableMapView<dynamic, dynamic> _) {}),
-          DDC$RT.type((Map<String, String> _) {}), "CastExact",
-          """line 973, column 26 of dart:core/uri.dart: """,
-          __x45 is Map<String, String>,
-          false))(new UnmodifiableMapView(splitQueryString(query)));
-    }
-    return _queryParameters;
-  }
-  static int _makePort(int port, String scheme) {
-    if (port != null && port == _defaultPort(scheme)) return ((__x46) => DDC$RT
-        .cast(__x46, Null, int, "CastLiteral",
-            """line 980, column 62 of dart:core/uri.dart: """, __x46 is int,
-            true))(null);
-    return port;
-  }
-  static String _makeHost(String host, int start, int end, bool strictIPv6) {
-    if (host == null) return null;
-    if (start == end) return "";
-    if (host.codeUnitAt(start) == _LEFT_BRACKET) {
-      if (host.codeUnitAt(end - 1) != _RIGHT_BRACKET) {
-        _fail(host, start, 'Missing end `]` to match `[` in host');
-      }
-      parseIPv6Address(host, start + 1, end - 1);
-      return host.substring(start, end).toLowerCase();
-    }
-    if (!strictIPv6) {
-      for (int i = start; i < end; i++) {
-        if (host.codeUnitAt(i) == _COLON) {
-          parseIPv6Address(host, start, end);
-          return '[$host]';
-        }
-      }
-    }
-    return _normalizeRegName(host, start, end);
-  }
-  static bool _isRegNameChar(int char) {
-    return char < 127 && (_regNameTable[char >> 4] & (1 << (char & 0xf))) != 0;
-  }
-  static String _normalizeRegName(String host, int start, int end) {
-    StringBuffer buffer;
-    int sectionStart = start;
-    int index = start;
-    bool isNormalized = true;
-    while (index < end) {
-      int char = host.codeUnitAt(index);
-      if (char == _PERCENT) {
-        String replacement = _normalizeEscape(host, index, true);
-        if (replacement == null && isNormalized) {
-          index += 3;
-          continue;
-        }
-        if (buffer == null) buffer = new StringBuffer();
-        String slice = host.substring(sectionStart, index);
-        if (!isNormalized) slice = slice.toLowerCase();
-        buffer.write(slice);
-        int sourceLength = 3;
-        if (replacement == null) {
-          replacement = host.substring(index, index + 3);
-        } else if (replacement == "%") {
-          replacement = "%25";
-          sourceLength = 1;
-        }
-        buffer.write(replacement);
-        index += sourceLength;
-        sectionStart = index;
-        isNormalized = true;
-      } else if (_isRegNameChar(char)) {
-        if (isNormalized && _UPPER_CASE_A <= char && _UPPER_CASE_Z >= char) {
-          if (buffer == null) buffer = new StringBuffer();
-          if (sectionStart < index) {
-            buffer.write(host.substring(sectionStart, index));
-            sectionStart = index;
-          }
-          isNormalized = false;
-        }
-        index++;
-      } else if (_isGeneralDelimiter(char)) {
-        _fail(host, index, "Invalid character");
-      } else {
-        int sourceLength = 1;
-        if ((char & 0xFC00) == 0xD800 && (index + 1) < end) {
-          int tail = host.codeUnitAt(index + 1);
-          if ((tail & 0xFC00) == 0xDC00) {
-            char = 0x10000 | ((char & 0x3ff) << 10) | (tail & 0x3ff);
+    }
+  }
+ if (host != null) {
+  host = _makeHost(host, 0, host.length, false);
+  }
+ else if (this.hasAuthority) {
+  host = this.host;
+  }
+ else if (userInfo.isNotEmpty || port != null || isFile) {
+  host = "";
+  }
+ bool ensureLeadingSlash = (host != null);
+ if (path != null || pathSegments != null) {
+  path = _makePath(path, 0, _stringOrNullLength(path), pathSegments, ensureLeadingSlash, isFile);
+  }
+ else {
+  path = this.path;
+   if ((isFile || (ensureLeadingSlash && !path.isEmpty)) && !path.startsWith('/')) {
+    path = "/$path";
+    }
+  }
+ if (query != null || queryParameters != null) {
+  query = _makeQuery(query, 0, _stringOrNullLength(query), queryParameters);
+  }
+ else if (this.hasQuery) {
+  query = this.query;
+  }
+ if (fragment != null) {
+  fragment = _makeFragment(fragment, 0, fragment.length);
+  }
+ else if (this.hasFragment) {
+  fragment = this.fragment;
+  }
+ return new Uri._internal(scheme, userInfo, host, port, path, query, fragment);
+}
+ List<String> get pathSegments {
+if (_pathSegments == null) {
+  var pathToSplit = !path.isEmpty && path.codeUnitAt(0) == _SLASH ? path.substring(1) : path;
+   _pathSegments = ((__x44) => DDC$RT.cast(__x44, DDC$RT.type((DDC$collection$.UnmodifiableListView<dynamic> _) {
+    }
+  ), DDC$RT.type((List<String> _) {
+    }
+  ), "CastExact", """line 949, column 23 of dart:core/uri.dart: """, __x44 is List<String>, false))(new UnmodifiableListView(pathToSplit == "" ? const <String> [] : pathToSplit.split("/").map(Uri.decodeComponent).toList(growable: false)));
+  }
+ return _pathSegments;
+}
+ Map<String, String> get queryParameters {
+if (_queryParameters == null) {
+  _queryParameters = ((__x45) => DDC$RT.cast(__x45, DDC$RT.type((DDC$collection$.UnmodifiableMapView<dynamic, dynamic> _) {
+    }
+  ), DDC$RT.type((Map<String, String> _) {
+    }
+  ), "CastExact", """line 973, column 26 of dart:core/uri.dart: """, __x45 is Map<String, String>, false))(new UnmodifiableMapView(splitQueryString(query)));
+  }
+ return _queryParameters;
+}
+ static int _makePort(int port, String scheme) {
+if (port != null && port == _defaultPort(scheme)) return ((__x46) => DDC$RT.cast(__x46, Null, int, "CastLiteral", """line 980, column 62 of dart:core/uri.dart: """, __x46 is int, true))(null);
+ return port;
+}
+ static String _makeHost(String host, int start, int end, bool strictIPv6) {
+if (host == null) return null;
+ if (start == end) return "";
+ if (host.codeUnitAt(start) == _LEFT_BRACKET) {
+  if (host.codeUnitAt(end - 1) != _RIGHT_BRACKET) {
+    _fail(host, start, 'Missing end `]` to match `[` in host');
+    }
+   parseIPv6Address(host, start + 1, end - 1);
+   return host.substring(start, end).toLowerCase();
+  }
+ if (!strictIPv6) {
+  for (int i = start;
+   i < end;
+   i++) {
+    if (host.codeUnitAt(i) == _COLON) {
+      parseIPv6Address(host, start, end);
+       return '[$host]';
+      }
+    }
+  }
+ return _normalizeRegName(host, start, end);
+}
+ static bool _isRegNameChar(int char) {
+return char < 127 && (_regNameTable[char >> 4] & (1 << (char & 0xf))) != 0;
+}
+ static String _normalizeRegName(String host, int start, int end) {
+StringBuffer buffer;
+ int sectionStart = start;
+ int index = start;
+ bool isNormalized = true;
+ while (index < end) {
+  int char = host.codeUnitAt(index);
+   if (char == _PERCENT) {
+    String replacement = _normalizeEscape(host, index, true);
+     if (replacement == null && isNormalized) {
+      index += 3;
+       continue;
+      }
+     if (buffer == null) buffer = new StringBuffer();
+     String slice = host.substring(sectionStart, index);
+     if (!isNormalized) slice = slice.toLowerCase();
+     buffer.write(slice);
+     int sourceLength = 3;
+     if (replacement == null) {
+      replacement = host.substring(index, index + 3);
+      }
+     else if (replacement == "%") {
+      replacement = "%25";
+       sourceLength = 1;
+      }
+     buffer.write(replacement);
+     index += sourceLength;
+     sectionStart = index;
+     isNormalized = true;
+    }
+   else if (_isRegNameChar(char)) {
+    if (isNormalized && _UPPER_CASE_A <= char && _UPPER_CASE_Z >= char) {
+      if (buffer == null) buffer = new StringBuffer();
+       if (sectionStart < index) {
+        buffer.write(host.substring(sectionStart, index));
+         sectionStart = index;
+        }
+       isNormalized = false;
+      }
+     index++;
+    }
+   else if (_isGeneralDelimiter(char)) {
+    _fail(host, index, "Invalid character");
+    }
+   else {
+    int sourceLength = 1;
+     if ((char & 0xFC00) == 0xD800 && (index + 1) < end) {
+      int tail = host.codeUnitAt(index + 1);
+       if ((tail & 0xFC00) == 0xDC00) {
+        char = 0x10000 | ((char & 0x3ff) << 10) | (tail & 0x3ff);
+         sourceLength = 2;
+        }
+      }
+     if (buffer == null) buffer = new StringBuffer();
+     String slice = host.substring(sectionStart, index);
+     if (!isNormalized) slice = slice.toLowerCase();
+     buffer.write(slice);
+     buffer.write(_escapeChar(char));
+     index += sourceLength;
+     sectionStart = index;
+    }
+  }
+ if (buffer == null) return host.substring(start, end);
+ if (sectionStart < end) {
+  String slice = host.substring(sectionStart, end);
+   if (!isNormalized) slice = slice.toLowerCase();
+   buffer.write(slice);
+  }
+ return buffer.toString();
+}
+ static String _makeScheme(String scheme, int end) {
+if (end == 0) return "";
+ final int firstCodeUnit = scheme.codeUnitAt(0);
+ if (!_isAlphabeticCharacter(firstCodeUnit)) {
+  _fail(scheme, 0, "Scheme not starting with alphabetic character");
+  }
+ bool allLowercase = firstCodeUnit >= _LOWER_CASE_A;
+ for (int i = 0;
+ i < end;
+ i++) {
+  final int codeUnit = scheme.codeUnitAt(i);
+   if (!_isSchemeCharacter(codeUnit)) {
+    _fail(scheme, i, "Illegal scheme character");
+    }
+   if (codeUnit < _LOWER_CASE_A || codeUnit > _LOWER_CASE_Z) {
+    allLowercase = false;
+    }
+  }
+ scheme = scheme.substring(0, end);
+ if (!allLowercase) scheme = scheme.toLowerCase();
+ return scheme;
+}
+ static String _makeUserInfo(String userInfo, int start, int end) {
+if (userInfo == null) return "";
+ return _normalize(userInfo, start, end, DDC$RT.cast(_userinfoTable, dynamic, DDC$RT.type((List<int> _) {
+  }
+), "CastGeneral", """line 1130, column 45 of dart:core/uri.dart: """, _userinfoTable is List<int>, false));
+}
+ static String _makePath(String path, int start, int end, Iterable<String> pathSegments, bool ensureLeadingSlash, bool isFile) {
+if (path == null && pathSegments == null) return isFile ? "/" : "";
+ if (path != null && pathSegments != null) {
+  throw new ArgumentError('Both path and pathSegments specified');
+  }
+ var result;
+ if (path != null) {
+  result = _normalize(path, start, end, DDC$RT.cast(_pathCharOrSlashTable, dynamic, DDC$RT.type((List<int> _) {
+    }
+  ), "CastGeneral", """line 1143, column 45 of dart:core/uri.dart: """, _pathCharOrSlashTable is List<int>, false));
+  }
+ else {
+  result = pathSegments.map((s) => _uriEncode(DDC$RT.cast(_pathCharTable, dynamic, DDC$RT.type((List<int> _) {
+    }
+  ), "CastGeneral", """line 1145, column 51 of dart:core/uri.dart: """, _pathCharTable is List<int>, false), DDC$RT.cast(s, dynamic, String, "CastGeneral", """line 1145, column 67 of dart:core/uri.dart: """, s is String, true))).join("/");
+  }
+ if (result.isEmpty) {
+  if (isFile) return "/";
+  }
+ else if ((isFile || ensureLeadingSlash) && result.codeUnitAt(0) != _SLASH) {
+  return "/$result";
+  }
+ return DDC$RT.cast(result, dynamic, String, "CastGeneral", """line 1153, column 12 of dart:core/uri.dart: """, result is String, true);
+}
+ static String _makeQuery(String query, int start, int end, Map<String, String> queryParameters) {
+if (query == null && queryParameters == null) return null;
+ if (query != null && queryParameters != null) {
+  throw new ArgumentError('Both query and queryParameters specified');
+  }
+ if (query != null) return _normalize(query, start, end, DDC$RT.cast(_queryCharTable, dynamic, DDC$RT.type((List<int> _) {
+  }
+), "CastGeneral", """line 1162, column 61 of dart:core/uri.dart: """, _queryCharTable is List<int>, false));
+ var result = new StringBuffer();
+ var first = true;
+ queryParameters.forEach((key, value) {
+  if (!first) {
+    result.write("&");
+    }
+   first = false;
+   result.write(Uri.encodeQueryComponent(DDC$RT.cast(key, dynamic, String, "CastGeneral", """line 1171, column 45 of dart:core/uri.dart: """, key is String, true)));
+   if (value != null && !value.isEmpty) {
+    result.write("=");
+     result.write(Uri.encodeQueryComponent(DDC$RT.cast(value, dynamic, String, "CastGeneral", """line 1174, column 47 of dart:core/uri.dart: """, value is String, true)));
+    }
+  }
+);
+ return result.toString();
+}
+ static String _makeFragment(String fragment, int start, int end) {
+if (fragment == null) return null;
+ return _normalize(fragment, start, end, DDC$RT.cast(_queryCharTable, dynamic, DDC$RT.type((List<int> _) {
+  }
+), "CastGeneral", """line 1182, column 45 of dart:core/uri.dart: """, _queryCharTable is List<int>, false));
+}
+ static int _stringOrNullLength(String s) => (s == null) ? 0 : s.length;
+ static bool _isHexDigit(int char) {
+if (_NINE >= char) return _ZERO <= char;
+ char |= 0x20;
+ return _LOWER_CASE_A <= char && _LOWER_CASE_F >= char;
+}
+ static int _hexValue(int char) {
+assert (_isHexDigit(char)); if (_NINE >= char) return char - _ZERO;
+ char |= 0x20;
+ return char - (_LOWER_CASE_A - 10);
+}
+ static String _normalizeEscape(String source, int index, bool lowerCase) {
+assert (source.codeUnitAt(index) == _PERCENT); if (index + 2 >= source.length) {
+  return "%";
+  }
+ int firstDigit = source.codeUnitAt(index + 1);
+ int secondDigit = source.codeUnitAt(index + 2);
+ if (!_isHexDigit(firstDigit) || !_isHexDigit(secondDigit)) {
+  return "%";
+  }
+ int value = _hexValue(firstDigit) * 16 + _hexValue(secondDigit);
+ if (_isUnreservedChar(value)) {
+  if (lowerCase && _UPPER_CASE_A <= value && _UPPER_CASE_Z >= value) {
+    value |= 0x20;
+    }
+   return new String.fromCharCode(value);
+  }
+ if (firstDigit >= _LOWER_CASE_A || secondDigit >= _LOWER_CASE_A) {
+  return source.substring(index, index + 3).toUpperCase();
+  }
+ return null;
+}
+ static bool _isUnreservedChar(int ch) {
+return ch < 127 && ((_unreservedTable[ch >> 4] & (1 << (ch & 0x0f))) != 0);
+}
+ static String _escapeChar(char) {
+assert (char <= 0x10ffff); const hexDigits = "0123456789ABCDEF";
+ List codeUnits;
+ if (char < 0x80) {
+  codeUnits = new List(3);
+   codeUnits[0] = _PERCENT;
+   codeUnits[1] = hexDigits.codeUnitAt(((__x47) => DDC$RT.cast(__x47, dynamic, int, "CastGeneral", """line 1252, column 43 of dart:core/uri.dart: """, __x47 is int, true))(char >> 4));
+   codeUnits[2] = hexDigits.codeUnitAt(((__x48) => DDC$RT.cast(__x48, dynamic, int, "CastGeneral", """line 1253, column 43 of dart:core/uri.dart: """, __x48 is int, true))(char & 0xf));
+  }
+ else {
+  int flag = 0xc0;
+   int encodedBytes = 2;
+   if (char > 0x7ff) {
+    flag = 0xe0;
+     encodedBytes = 3;
+     if (char > 0xffff) {
+      encodedBytes = 4;
+       flag = 0xf0;
+      }
+    }
+   codeUnits = new List(3 * encodedBytes);
+   int index = 0;
+   while (--encodedBytes >= 0) {
+    int byte = ((__x49) => DDC$RT.cast(__x49, dynamic, int, "CastGeneral", """line 1269, column 20 of dart:core/uri.dart: """, __x49 is int, true))(((char >> (6 * encodedBytes)) & 0x3f) | flag);
+     codeUnits[index] = _PERCENT;
+     codeUnits[index + 1] = hexDigits.codeUnitAt(byte >> 4);
+     codeUnits[index + 2] = hexDigits.codeUnitAt(byte & 0xf);
+     index += 3;
+     flag = 0x80;
+    }
+  }
+ return new String.fromCharCodes(codeUnits);
+}
+ static String _normalize(String component, int start, int end, List<int> charTable) {
+StringBuffer buffer;
+ int sectionStart = start;
+ int index = start;
+ while (index < end) {
+  int char = component.codeUnitAt(index);
+   if (char < 127 && (charTable[char >> 4] & (1 << (char & 0x0f))) != 0) {
+    index++;
+    }
+   else {
+    String replacement;
+     int sourceLength;
+     if (char == _PERCENT) {
+      replacement = _normalizeEscape(component, index, false);
+       if (replacement == null) {
+        index += 3;
+         continue;
+        }
+       if ("%" == replacement) {
+        replacement = "%25";
+         sourceLength = 1;
+        }
+       else {
+        sourceLength = 3;
+        }
+      }
+     else if (_isGeneralDelimiter(char)) {
+      _fail(component, index, "Invalid character");
+      }
+     else {
+      sourceLength = 1;
+       if ((char & 0xFC00) == 0xD800) {
+        if (index + 1 < end) {
+          int tail = component.codeUnitAt(index + 1);
+           if ((tail & 0xFC00) == 0xDC00) {
             sourceLength = 2;
-          }
-        }
-        if (buffer == null) buffer = new StringBuffer();
-        String slice = host.substring(sectionStart, index);
-        if (!isNormalized) slice = slice.toLowerCase();
-        buffer.write(slice);
-        buffer.write(_escapeChar(char));
-        index += sourceLength;
-        sectionStart = index;
-      }
-    }
-    if (buffer == null) return host.substring(start, end);
-    if (sectionStart < end) {
-      String slice = host.substring(sectionStart, end);
-      if (!isNormalized) slice = slice.toLowerCase();
-      buffer.write(slice);
-    }
-    return buffer.toString();
-  }
-  static String _makeScheme(String scheme, int end) {
-    if (end == 0) return "";
-    final int firstCodeUnit = scheme.codeUnitAt(0);
-    if (!_isAlphabeticCharacter(firstCodeUnit)) {
-      _fail(scheme, 0, "Scheme not starting with alphabetic character");
-    }
-    bool allLowercase = firstCodeUnit >= _LOWER_CASE_A;
-    for (int i = 0; i < end; i++) {
-      final int codeUnit = scheme.codeUnitAt(i);
-      if (!_isSchemeCharacter(codeUnit)) {
-        _fail(scheme, i, "Illegal scheme character");
-      }
-      if (codeUnit < _LOWER_CASE_A || codeUnit > _LOWER_CASE_Z) {
-        allLowercase = false;
-      }
-    }
-    scheme = scheme.substring(0, end);
-    if (!allLowercase) scheme = scheme.toLowerCase();
-    return scheme;
-  }
-  static String _makeUserInfo(String userInfo, int start, int end) {
-    if (userInfo == null) return "";
-    return _normalize(userInfo, start, end, DDC$RT.cast(_userinfoTable, dynamic,
-        DDC$RT.type((List<int> _) {}), "CastGeneral",
-        """line 1130, column 45 of dart:core/uri.dart: """,
-        _userinfoTable is List<int>, false));
-  }
-  static String _makePath(String path, int start, int end,
-      Iterable<String> pathSegments, bool ensureLeadingSlash, bool isFile) {
-    if (path == null && pathSegments == null) return isFile ? "/" : "";
-    if (path != null && pathSegments != null) {
-      throw new ArgumentError('Both path and pathSegments specified');
-    }
-    var result;
-    if (path != null) {
-      result = _normalize(path, start, end, DDC$RT.cast(_pathCharOrSlashTable,
-          dynamic, DDC$RT.type((List<int> _) {}), "CastGeneral",
-          """line 1143, column 45 of dart:core/uri.dart: """,
-          _pathCharOrSlashTable is List<int>, false));
-    } else {
-      result = pathSegments
-          .map((s) => _uriEncode(DDC$RT.cast(_pathCharTable, dynamic,
-              DDC$RT.type((List<int> _) {}), "CastGeneral",
-              """line 1145, column 51 of dart:core/uri.dart: """,
-              _pathCharTable is List<int>, false), DDC$RT.cast(s, dynamic,
-              String, "CastGeneral",
-              """line 1145, column 67 of dart:core/uri.dart: """, s is String,
-              true)))
-          .join("/");
-    }
-    if (result.isEmpty) {
-      if (isFile) return "/";
-    } else if ((isFile || ensureLeadingSlash) &&
-        result.codeUnitAt(0) != _SLASH) {
-      return "/$result";
-    }
-    return DDC$RT.cast(result, dynamic, String, "CastGeneral",
-        """line 1153, column 12 of dart:core/uri.dart: """, result is String,
-        true);
-  }
-  static String _makeQuery(
-      String query, int start, int end, Map<String, String> queryParameters) {
-    if (query == null && queryParameters == null) return null;
-    if (query != null && queryParameters != null) {
-      throw new ArgumentError('Both query and queryParameters specified');
-    }
-    if (query != null) return _normalize(query, start, end, DDC$RT.cast(
-        _queryCharTable, dynamic, DDC$RT.type((List<int> _) {}), "CastGeneral",
-        """line 1162, column 61 of dart:core/uri.dart: """,
-        _queryCharTable is List<int>, false));
-    var result = new StringBuffer();
-    var first = true;
-    queryParameters.forEach((key, value) {
-      if (!first) {
-        result.write("&");
-      }
-      first = false;
-      result.write(Uri.encodeQueryComponent(DDC$RT.cast(key, dynamic, String,
-          "CastGeneral", """line 1171, column 45 of dart:core/uri.dart: """,
-          key is String, true)));
-      if (value != null && !value.isEmpty) {
-        result.write("=");
-        result.write(Uri.encodeQueryComponent(DDC$RT.cast(value, dynamic,
-            String, "CastGeneral",
-            """line 1174, column 47 of dart:core/uri.dart: """, value is String,
-            true)));
-      }
-    });
-    return result.toString();
-  }
-  static String _makeFragment(String fragment, int start, int end) {
-    if (fragment == null) return null;
-    return _normalize(fragment, start, end, DDC$RT.cast(_queryCharTable,
-        dynamic, DDC$RT.type((List<int> _) {}), "CastGeneral",
-        """line 1182, column 45 of dart:core/uri.dart: """,
-        _queryCharTable is List<int>, false));
-  }
-  static int _stringOrNullLength(String s) => (s == null) ? 0 : s.length;
-  static bool _isHexDigit(int char) {
-    if (_NINE >= char) return _ZERO <= char;
-    char |= 0x20;
-    return _LOWER_CASE_A <= char && _LOWER_CASE_F >= char;
-  }
-  static int _hexValue(int char) {
-    assert(_isHexDigit(char));
-    if (_NINE >= char) return char - _ZERO;
-    char |= 0x20;
-    return char - (_LOWER_CASE_A - 10);
-  }
-  static String _normalizeEscape(String source, int index, bool lowerCase) {
-    assert(source.codeUnitAt(index) == _PERCENT);
-    if (index + 2 >= source.length) {
-      return "%";
-    }
-    int firstDigit = source.codeUnitAt(index + 1);
-    int secondDigit = source.codeUnitAt(index + 2);
-    if (!_isHexDigit(firstDigit) || !_isHexDigit(secondDigit)) {
-      return "%";
-    }
-    int value = _hexValue(firstDigit) * 16 + _hexValue(secondDigit);
-    if (_isUnreservedChar(value)) {
-      if (lowerCase && _UPPER_CASE_A <= value && _UPPER_CASE_Z >= value) {
-        value |= 0x20;
-      }
-      return new String.fromCharCode(value);
-    }
-    if (firstDigit >= _LOWER_CASE_A || secondDigit >= _LOWER_CASE_A) {
-      return source.substring(index, index + 3).toUpperCase();
-    }
-    return null;
-  }
-  static bool _isUnreservedChar(int ch) {
-    return ch < 127 && ((_unreservedTable[ch >> 4] & (1 << (ch & 0x0f))) != 0);
-  }
-  static String _escapeChar(char) {
-    assert(char <= 0x10ffff);
-    const hexDigits = "0123456789ABCDEF";
-    List codeUnits;
-    if (char < 0x80) {
-      codeUnits = new List(3);
-      codeUnits[0] = _PERCENT;
-      codeUnits[1] = hexDigits.codeUnitAt(((__x47) => DDC$RT.cast(__x47,
-          dynamic, int, "CastGeneral",
-          """line 1252, column 43 of dart:core/uri.dart: """, __x47 is int,
-          true))(char >> 4));
-      codeUnits[2] = hexDigits.codeUnitAt(((__x48) => DDC$RT.cast(__x48,
-          dynamic, int, "CastGeneral",
-          """line 1253, column 43 of dart:core/uri.dart: """, __x48 is int,
-          true))(char & 0xf));
-    } else {
-      int flag = 0xc0;
-      int encodedBytes = 2;
-      if (char > 0x7ff) {
-        flag = 0xe0;
-        encodedBytes = 3;
-        if (char > 0xffff) {
-          encodedBytes = 4;
-          flag = 0xf0;
-        }
-      }
-      codeUnits = new List(3 * encodedBytes);
-      int index = 0;
-      while (--encodedBytes >= 0) {
-        int byte = ((__x49) => DDC$RT.cast(__x49, dynamic, int, "CastGeneral",
-            """line 1269, column 20 of dart:core/uri.dart: """, __x49 is int,
-            true))(((char >> (6 * encodedBytes)) & 0x3f) | flag);
-        codeUnits[index] = _PERCENT;
-        codeUnits[index + 1] = hexDigits.codeUnitAt(byte >> 4);
-        codeUnits[index + 2] = hexDigits.codeUnitAt(byte & 0xf);
-        index += 3;
-        flag = 0x80;
-      }
-    }
-    return new String.fromCharCodes(codeUnits);
-  }
-  static String _normalize(
-      String component, int start, int end, List<int> charTable) {
-    StringBuffer buffer;
-    int sectionStart = start;
-    int index = start;
-    while (index < end) {
-      int char = component.codeUnitAt(index);
-      if (char < 127 && (charTable[char >> 4] & (1 << (char & 0x0f))) != 0) {
-        index++;
-      } else {
-        String replacement;
-        int sourceLength;
-        if (char == _PERCENT) {
-          replacement = _normalizeEscape(component, index, false);
-          if (replacement == null) {
-            index += 3;
-            continue;
-          }
-          if ("%" == replacement) {
-            replacement = "%25";
-            sourceLength = 1;
-          } else {
-            sourceLength = 3;
-          }
-        } else if (_isGeneralDelimiter(char)) {
-          _fail(component, index, "Invalid character");
-        } else {
-          sourceLength = 1;
-          if ((char & 0xFC00) == 0xD800) {
-            if (index + 1 < end) {
-              int tail = component.codeUnitAt(index + 1);
-              if ((tail & 0xFC00) == 0xDC00) {
-                sourceLength = 2;
-                char = 0x10000 | ((char & 0x3ff) << 10) | (tail & 0x3ff);
-              }
+             char = 0x10000 | ((char & 0x3ff) << 10) | (tail & 0x3ff);
             }
           }
-          replacement = _escapeChar(char);
-        }
-        if (buffer == null) buffer = new StringBuffer();
-        buffer.write(component.substring(sectionStart, index));
-        buffer.write(replacement);
-        index += sourceLength;
-        sectionStart = index;
-      }
-    }
-    if (buffer == null) {
-      return component.substring(start, end);
-    }
-    if (sectionStart < end) {
-      buffer.write(component.substring(sectionStart, end));
-    }
-    return buffer.toString();
-  }
-  static bool _isSchemeCharacter(int ch) {
-    return ch < 128 && ((_schemeTable[ch >> 4] & (1 << (ch & 0x0f))) != 0);
-  }
-  static bool _isGeneralDelimiter(int ch) {
-    return ch <= _RIGHT_BRACKET &&
-        ((_genDelimitersTable[ch >> 4] & (1 << (ch & 0x0f))) != 0);
-  }
-  bool get isAbsolute => scheme != "" && fragment == "";
-  String _merge(String base, String reference) {
-    if (base.isEmpty) return "/$reference";
-    int backCount = 0;
-    int refStart = 0;
-    while (reference.startsWith("../", refStart)) {
-      refStart += 3;
-      backCount++;
-    }
-    int baseEnd = base.lastIndexOf('/');
-    while (baseEnd > 0 && backCount > 0) {
-      int newEnd = base.lastIndexOf('/', baseEnd - 1);
-      if (newEnd < 0) {
-        break;
-      }
-      int delta = baseEnd - newEnd;
-      if ((delta == 2 || delta == 3) &&
-          base.codeUnitAt(newEnd + 1) == _DOT &&
-          (delta == 2 || base.codeUnitAt(newEnd + 2) == _DOT)) {
-        break;
-      }
-      baseEnd = newEnd;
-      backCount--;
-    }
-    return base.substring(0, baseEnd + 1) +
-        reference.substring(refStart - 3 * backCount);
-  }
-  bool _hasDotSegments(String path) {
-    if (path.length > 0 && path.codeUnitAt(0) == _DOT) return true;
-    int index = path.indexOf("/.");
-    return index != -1;
-  }
-  String _removeDotSegments(String path) {
-    if (!_hasDotSegments(path)) return path;
-    List<String> output = ((__x50) => DDC$RT.cast(__x50,
-        DDC$RT.type((List<dynamic> _) {}), DDC$RT.type((List<String> _) {}),
-        "CastLiteral", """line 1406, column 27 of dart:core/uri.dart: """,
-        __x50 is List<String>, false))([]);
-    bool appendSlash = false;
-    for (String segment in path.split("/")) {
-      appendSlash = false;
-      if (segment == "..") {
-        if (!output.isEmpty &&
-            ((output.length != 1) || (output[0] != ""))) output.removeLast();
-        appendSlash = true;
-      } else if ("." == segment) {
-        appendSlash = true;
-      } else {
-        output.add(segment);
-      }
-    }
-    if (appendSlash) output.add("");
-    return output.join("/");
-  }
-  Uri resolve(String reference) {
-    return resolveUri(Uri.parse(reference));
-  }
-  Uri resolveUri(Uri reference) {
-    String targetScheme;
-    String targetUserInfo = "";
-    String targetHost;
-    int targetPort;
-    String targetPath;
-    String targetQuery;
-    if (reference.scheme.isNotEmpty) {
-      targetScheme = reference.scheme;
-      if (reference.hasAuthority) {
-        targetUserInfo = reference.userInfo;
-        targetHost = reference.host;
-        targetPort = ((__x51) => DDC$RT.cast(__x51, dynamic, int, "CastGeneral",
-            """line 1460, column 22 of dart:core/uri.dart: """, __x51 is int,
-            true))(reference.hasPort ? reference.port : null);
-      }
-      targetPath = _removeDotSegments(reference.path);
-      if (reference.hasQuery) {
+        }
+       replacement = _escapeChar(char);
+      }
+     if (buffer == null) buffer = new StringBuffer();
+     buffer.write(component.substring(sectionStart, index));
+     buffer.write(replacement);
+     index += sourceLength;
+     sectionStart = index;
+    }
+  }
+ if (buffer == null) {
+  return component.substring(start, end);
+  }
+ if (sectionStart < end) {
+  buffer.write(component.substring(sectionStart, end));
+  }
+ return buffer.toString();
+}
+ static bool _isSchemeCharacter(int ch) {
+return ch < 128 && ((_schemeTable[ch >> 4] & (1 << (ch & 0x0f))) != 0);
+}
+ static bool _isGeneralDelimiter(int ch) {
+return ch <= _RIGHT_BRACKET && ((_genDelimitersTable[ch >> 4] & (1 << (ch & 0x0f))) != 0);
+}
+ bool get isAbsolute => scheme != "" && fragment == "";
+ String _merge(String base, String reference) {
+if (base.isEmpty) return "/$reference";
+ int backCount = 0;
+ int refStart = 0;
+ while (reference.startsWith("../", refStart)) {
+  refStart += 3;
+   backCount++;
+  }
+ int baseEnd = base.lastIndexOf('/');
+ while (baseEnd > 0 && backCount > 0) {
+  int newEnd = base.lastIndexOf('/', baseEnd - 1);
+   if (newEnd < 0) {
+    break;
+    }
+   int delta = baseEnd - newEnd;
+   if ((delta == 2 || delta == 3) && base.codeUnitAt(newEnd + 1) == _DOT && (delta == 2 || base.codeUnitAt(newEnd + 2) == _DOT)) {
+    break;
+    }
+   baseEnd = newEnd;
+   backCount--;
+  }
+ return base.substring(0, baseEnd + 1) + reference.substring(refStart - 3 * backCount);
+}
+ bool _hasDotSegments(String path) {
+if (path.length > 0 && path.codeUnitAt(0) == _DOT) return true;
+ int index = path.indexOf("/.");
+ return index != -1;
+}
+ String _removeDotSegments(String path) {
+if (!_hasDotSegments(path)) return path;
+ List<String> output = ((__x50) => DDC$RT.cast(__x50, DDC$RT.type((List<dynamic> _) {
+  }
+), DDC$RT.type((List<String> _) {
+  }
+), "CastLiteral", """line 1406, column 27 of dart:core/uri.dart: """, __x50 is List<String>, false))([]);
+ bool appendSlash = false;
+ for (String segment in path.split("/")) {
+  appendSlash = false;
+   if (segment == "..") {
+    if (!output.isEmpty && ((output.length != 1) || (output[0] != ""))) output.removeLast();
+     appendSlash = true;
+    }
+   else if ("." == segment) {
+    appendSlash = true;
+    }
+   else {
+    output.add(segment);
+    }
+  }
+ if (appendSlash) output.add("");
+ return output.join("/");
+}
+ Uri resolve(String reference) {
+return resolveUri(Uri.parse(reference));
+}
+ Uri resolveUri(Uri reference) {
+String targetScheme;
+ String targetUserInfo = "";
+ String targetHost;
+ int targetPort;
+ String targetPath;
+ String targetQuery;
+ if (reference.scheme.isNotEmpty) {
+  targetScheme = reference.scheme;
+   if (reference.hasAuthority) {
+    targetUserInfo = reference.userInfo;
+     targetHost = reference.host;
+     targetPort = ((__x51) => DDC$RT.cast(__x51, dynamic, int, "CastGeneral", """line 1460, column 22 of dart:core/uri.dart: """, __x51 is int, true))(reference.hasPort ? reference.port : null);
+    }
+   targetPath = _removeDotSegments(reference.path);
+   if (reference.hasQuery) {
+    targetQuery = reference.query;
+    }
+  }
+ else {
+  targetScheme = this.scheme;
+   if (reference.hasAuthority) {
+    targetUserInfo = reference.userInfo;
+     targetHost = reference.host;
+     targetPort = _makePort(((__x52) => DDC$RT.cast(__x52, dynamic, int, "CastGeneral", """line 1471, column 32 of dart:core/uri.dart: """, __x52 is int, true))(reference.hasPort ? reference.port : null), targetScheme);
+     targetPath = _removeDotSegments(reference.path);
+     if (reference.hasQuery) targetQuery = reference.query;
+    }
+   else {
+    if (reference.path == "") {
+      targetPath = this._path;
+       if (reference.hasQuery) {
         targetQuery = reference.query;
-      }
-    } else {
-      targetScheme = this.scheme;
-      if (reference.hasAuthority) {
-        targetUserInfo = reference.userInfo;
-        targetHost = reference.host;
-        targetPort = _makePort(((__x52) => DDC$RT.cast(__x52, dynamic, int,
-            "CastGeneral", """line 1471, column 32 of dart:core/uri.dart: """,
-            __x52 is int,
-            true))(reference.hasPort ? reference.port : null), targetScheme);
+        }
+       else {
+        targetQuery = this._query;
+        }
+      }
+     else {
+      if (reference.path.startsWith("/")) {
         targetPath = _removeDotSegments(reference.path);
-        if (reference.hasQuery) targetQuery = reference.query;
-      } else {
-        if (reference.path == "") {
-          targetPath = this._path;
-          if (reference.hasQuery) {
-            targetQuery = reference.query;
-          } else {
-            targetQuery = this._query;
-          }
-        } else {
-          if (reference.path.startsWith("/")) {
-            targetPath = _removeDotSegments(reference.path);
-          } else {
-            targetPath = _removeDotSegments(_merge(this._path, reference.path));
-          }
-          if (reference.hasQuery) targetQuery = reference.query;
-        }
-        targetUserInfo = this._userInfo;
-        targetHost = this._host;
-        targetPort = ((__x53) => DDC$RT.cast(__x53, num, int, "CastGeneral",
-            """line 1493, column 22 of dart:core/uri.dart: """, __x53 is int,
-            true))(this._port);
-      }
-    }
-    String fragment = ((__x54) => DDC$RT.cast(__x54, dynamic, String,
-        "CastGeneral", """line 1496, column 23 of dart:core/uri.dart: """,
-        __x54 is String,
-        true))(reference.hasFragment ? reference.fragment : null);
-    return new Uri._internal(targetScheme, targetUserInfo, targetHost,
-        targetPort, targetPath, targetQuery, fragment);
-  }
-  bool get hasAuthority => _host != null;
-  bool get hasPort => _port != null;
-  bool get hasQuery => _query != null;
-  bool get hasFragment => _fragment != null;
-  String get origin {
-    if (scheme == "" || _host == null || _host == "") {
-      throw new StateError("Cannot use origin without a scheme: $this");
-    }
-    if (scheme != "http" && scheme != "https") {
-      throw new StateError(
-          "Origin is only applicable schemes http and https: $this");
-    }
-    if (_port == null) return "$scheme://$_host";
-    return "$scheme://$_host:$_port";
-  }
-  String toFilePath({bool windows}) {
-    if (scheme != "" && scheme != "file") {
-      throw new UnsupportedError(
-          "Cannot extract a file path from a $scheme URI");
-    }
-    if (query != "") {
-      throw new UnsupportedError(
-          "Cannot extract a file path from a URI with a query component");
-    }
-    if (fragment != "") {
-      throw new UnsupportedError(
-          "Cannot extract a file path from a URI with a fragment component");
-    }
-    if (windows == null) windows = _isWindows;
-    return windows ? _toWindowsFilePath() : _toFilePath();
-  }
-  String _toFilePath() {
-    if (host != "") {
-      throw new UnsupportedError(
-          "Cannot extract a non-Windows file path from a file URI " "with an authority");
-    }
-    _checkNonWindowsPathReservedCharacters(pathSegments, false);
-    var result = new StringBuffer();
-    if (_isPathAbsolute) result.write("/");
-    result.writeAll(pathSegments, "/");
-    return result.toString();
-  }
-  String _toWindowsFilePath() {
-    bool hasDriveLetter = false;
-    var segments = pathSegments;
-    if (segments.length > 0 &&
-        segments[0].length == 2 &&
-        segments[0].codeUnitAt(1) == _COLON) {
-      _checkWindowsDriveLetter(segments[0].codeUnitAt(0), false);
-      _checkWindowsPathReservedCharacters(segments, false, 1);
-      hasDriveLetter = true;
-    } else {
-      _checkWindowsPathReservedCharacters(segments, false);
-    }
-    var result = new StringBuffer();
-    if (_isPathAbsolute && !hasDriveLetter) result.write("\\");
-    if (host != "") {
-      result.write("\\");
-      result.write(host);
-      result.write("\\");
-    }
-    result.writeAll(segments, "\\");
-    if (hasDriveLetter && segments.length == 1) result.write("\\");
-    return result.toString();
-  }
-  bool get _isPathAbsolute {
-    if (path == null || path.isEmpty) return false;
-    return path.startsWith('/');
-  }
-  void _writeAuthority(StringSink ss) {
-    if (_userInfo.isNotEmpty) {
-      ss.write(_userInfo);
-      ss.write("@");
-    }
-    if (_host != null) ss.write(_host);
-    if (_port != null) {
-      ss.write(":");
-      ss.write(_port);
-    }
-  }
-  String toString() {
-    StringBuffer sb = new StringBuffer();
-    _addIfNonEmpty(sb, scheme, scheme, ':');
-    if (hasAuthority || path.startsWith("//") || (scheme == "file")) {
-      sb.write("//");
-      _writeAuthority(sb);
-    }
-    sb.write(path);
-    if (_query != null) {
-      sb
-        ..write("?")
-        ..write(_query);
-    }
-    if (_fragment != null) {
-      sb
-        ..write("#")
-        ..write(_fragment);
-    }
-    return sb.toString();
-  }
-  bool operator ==(other) {
-    if (other is! Uri) return false;
-    Uri uri = DDC$RT.cast(other, dynamic, Uri, "CastGeneral",
-        """line 1702, column 15 of dart:core/uri.dart: """, other is Uri, true);
-    return scheme == uri.scheme &&
-        hasAuthority == uri.hasAuthority &&
-        userInfo == uri.userInfo &&
-        host == uri.host &&
-        port == uri.port &&
-        path == uri.path &&
-        hasQuery == uri.hasQuery &&
-        query == uri.query &&
-        hasFragment == uri.hasFragment &&
-        fragment == uri.fragment;
-  }
-  int get hashCode {
-    int combine(part, current) {
-      return ((__x55) => DDC$RT.cast(__x55, dynamic, int, "CastGeneral",
-          """line 1718, column 14 of dart:core/uri.dart: """, __x55 is int,
-          true))((current * 31 + part.hashCode) & 0x3FFFFFFF);
-    }
-    return combine(scheme, combine(userInfo, combine(host,
-        combine(port, combine(path, combine(query, combine(fragment, 1)))))));
-  }
-  static void _addIfNonEmpty(
-      StringBuffer sb, String test, String first, String second) {
-    if ("" != test) {
-      sb.write(first);
-      sb.write(second);
-    }
-  }
-  static String encodeComponent(String component) {
-    return _uriEncode(DDC$RT.cast(_unreserved2396Table, dynamic,
-        DDC$RT.type((List<int> _) {}), "CastGeneral",
-        """line 1753, column 23 of dart:core/uri.dart: """,
-        _unreserved2396Table is List<int>, false), component);
-  }
-  static String encodeQueryComponent(String component,
-      {Encoding encoding: UTF8}) {
-    return _uriEncode(DDC$RT.cast(_unreservedTable, dynamic,
-            DDC$RT.type((List<int> _) {}), "CastGeneral",
-            """line 1792, column 9 of dart:core/uri.dart: """,
-            _unreservedTable is List<int>, false), component,
-        encoding: encoding, spaceToPlus: true);
-  }
-  static String decodeComponent(String encodedComponent) {
-    return _uriDecode(encodedComponent);
-  }
-  static String decodeQueryComponent(String encodedComponent,
-      {Encoding encoding: UTF8}) {
-    return _uriDecode(encodedComponent, plusToSpace: true, encoding: encoding);
-  }
-  static String encodeFull(String uri) {
-    return _uriEncode(DDC$RT.cast(_encodeFullTable, dynamic,
-        DDC$RT.type((List<int> _) {}), "CastGeneral",
-        """line 1836, column 23 of dart:core/uri.dart: """,
-        _encodeFullTable is List<int>, false), uri);
-  }
-  static String decodeFull(String uri) {
-    return _uriDecode(uri);
-  }
-  static Map<String, String> splitQueryString(String query,
-      {Encoding encoding: UTF8}) {
-    return ((__x56) => DDC$RT.cast(__x56, dynamic,
-            DDC$RT.type((Map<String, String> _) {}), "CastGeneral",
-            """line 1868, column 12 of dart:core/uri.dart: """,
-            __x56 is Map<String, String>, false))(query
-        .split("&")
-        .fold({}, (map, element) {
-      int index = ((__x57) => DDC$RT.cast(__x57, dynamic, int, "CastGeneral",
-          """line 1869, column 19 of dart:core/uri.dart: """, __x57 is int,
-          true))(element.indexOf("="));
-      if (index == -1) {
-        if (element != "") {
-          map[decodeQueryComponent(DDC$RT.cast(element, dynamic, String,
-              "CastGeneral", """line 1872, column 36 of dart:core/uri.dart: """,
-              element is String, true), encoding: encoding)] = "";
-        }
-      } else if (index != 0) {
-        var key = element.substring(0, index);
-        var value = element.substring(index + 1);
-        map[Uri.decodeQueryComponent(DDC$RT.cast(key, dynamic, String,
-                "CastGeneral",
-                """line 1877, column 38 of dart:core/uri.dart: """,
-                key is String, true),
-            encoding: encoding)] = decodeQueryComponent(DDC$RT.cast(value,
-                dynamic, String, "CastGeneral",
-                """line 1878, column 34 of dart:core/uri.dart: """,
-                value is String, true), encoding: encoding);
-      }
-      return map;
-    }));
-  }
-  static List<int> parseIPv4Address(String host) {
-    void error(String msg) {
-      throw new FormatException('Illegal IPv4 address, $msg');
-    }
-    var bytes = host.split('.');
-    if (bytes.length != 4) {
-      error('IPv4 address should contain exactly 4 parts');
-    }
-    return ((__x58) => DDC$RT.cast(__x58, DDC$RT.type((List<dynamic> _) {}),
-        DDC$RT.type((List<int> _) {}), "CastDynamic",
-        """line 1900, column 12 of dart:core/uri.dart: """, __x58 is List<int>,
-        false))(bytes.map((byteString) {
-      int byte = int.parse(DDC$RT.cast(byteString, dynamic, String,
-          "CastGeneral", """line 1902, column 32 of dart:core/uri.dart: """,
-          byteString is String, true));
-      if (byte < 0 || byte > 255) {
-        error('each part must be in the range of `0..255`');
-      }
-      return byte;
-    }).toList());
-  }
-  static List<int> parseIPv6Address(String host, [int start = 0, int end]) {
-    if (end == null) end = host.length;
-    void error(String msg, [position]) {
-      throw new FormatException('Illegal IPv6 address, $msg', host, position);
-    }
-    int parseHex(int start, int end) {
-      if (end - start > 4) {
-        error('an IPv6 part can only contain a maximum of 4 hex digits', start);
-      }
-      int value = int.parse(host.substring(start, end), radix: 16);
-      if (value < 0 || value > (1 << 16) - 1) {
-        error('each part must be in the range of `0x0..0xFFFF`', start);
-      }
-      return value;
-    }
-    if (host.length < 2) error('address is too short');
-    List<int> parts = ((__x59) => DDC$RT.cast(__x59,
-        DDC$RT.type((List<dynamic> _) {}), DDC$RT.type((List<int> _) {}),
-        "CastLiteral", """line 1950, column 23 of dart:core/uri.dart: """,
-        __x59 is List<int>, false))([]);
-    bool wildcardSeen = false;
-    int partStart = start;
-    for (int i = start; i < end; i++) {
-      if (host.codeUnitAt(i) == _COLON) {
-        if (i == start) {
-          i++;
-          if (host.codeUnitAt(i) != _COLON) {
-            error('invalid start colon.', i);
-          }
-          partStart = i;
-        }
-        if (i == partStart) {
-          if (wildcardSeen) {
-            error('only one wildcard `::` is allowed', i);
-          }
-          wildcardSeen = true;
-          parts.add(-1);
-        } else {
-          parts.add(parseHex(partStart, i));
-        }
-        partStart = i + 1;
-      }
-    }
-    if (parts.length == 0) error('too few parts');
-    bool atEnd = (partStart == end);
-    bool isLastWildcard = (parts.last == -1);
-    if (atEnd && !isLastWildcard) {
-      error('expected a part after last `:`', end);
-    }
-    if (!atEnd) {
-      try {
-        parts.add(parseHex(partStart, end));
-      } catch (e) {
-        try {
-          List<int> last = parseIPv4Address(host.substring(partStart, end));
-          parts.add(last[0] << 8 | last[1]);
-          parts.add(last[2] << 8 | last[3]);
-        } catch (e) {
-          error('invalid end of IPv6 address.', partStart);
-        }
-      }
-    }
-    if (wildcardSeen) {
-      if (parts.length > 7) {
-        error('an address with a wildcard must have less than 7 parts');
-      }
-    } else if (parts.length != 8) {
-      error('an address without a wildcard must contain exactly 8 parts');
-    }
-    List bytes = new List<int>(16);
-    for (int i = 0, index = 0; i < parts.length; i++) {
-      int value = parts[i];
-      if (value == -1) {
-        int wildCardLength = 9 - parts.length;
-        for (int j = 0; j < wildCardLength; j++) {
-          bytes[index] = 0;
-          bytes[index + 1] = 0;
-          index += 2;
-        }
-      } else {
-        bytes[index] = value >> 8;
-        bytes[index + 1] = value & 0xff;
-        index += 2;
-      }
-    }
-    return DDC$RT.cast(bytes, DDC$RT.type((List<dynamic> _) {}),
-        DDC$RT.type((List<int> _) {}), "CastDynamic",
-        """line 2022, column 12 of dart:core/uri.dart: """, bytes is List<int>,
-        false);
-  }
-  static const int _SPACE = 0x20;
-  static const int _DOUBLE_QUOTE = 0x22;
-  static const int _NUMBER_SIGN = 0x23;
-  static const int _PERCENT = 0x25;
-  static const int _ASTERISK = 0x2A;
-  static const int _PLUS = 0x2B;
-  static const int _DOT = 0x2E;
-  static const int _SLASH = 0x2F;
-  static const int _ZERO = 0x30;
-  static const int _NINE = 0x39;
-  static const int _COLON = 0x3A;
-  static const int _LESS = 0x3C;
-  static const int _GREATER = 0x3E;
-  static const int _QUESTION = 0x3F;
-  static const int _AT_SIGN = 0x40;
-  static const int _UPPER_CASE_A = 0x41;
-  static const int _UPPER_CASE_F = 0x46;
-  static const int _UPPER_CASE_Z = 0x5A;
-  static const int _LEFT_BRACKET = 0x5B;
-  static const int _BACKSLASH = 0x5C;
-  static const int _RIGHT_BRACKET = 0x5D;
-  static const int _LOWER_CASE_A = 0x61;
-  static const int _LOWER_CASE_F = 0x66;
-  static const int _LOWER_CASE_Z = 0x7A;
-  static const int _BAR = 0x7C;
-  static String _uriEncode(List<int> canonicalTable, String text,
-      {Encoding encoding: UTF8, bool spaceToPlus: false}) {
-    byteToHex(byte, buffer) {
-      const String hex = '0123456789ABCDEF';
-      buffer.writeCharCode(hex.codeUnitAt(((__x60) => DDC$RT.cast(__x60,
-          dynamic, int, "CastGeneral",
-          """line 2063, column 43 of dart:core/uri.dart: """, __x60 is int,
-          true))(byte >> 4)));
-      buffer.writeCharCode(hex.codeUnitAt(((__x61) => DDC$RT.cast(__x61,
-          dynamic, int, "CastGeneral",
-          """line 2064, column 43 of dart:core/uri.dart: """, __x61 is int,
-          true))(byte & 0x0f)));
-    }
-    StringBuffer result = new StringBuffer();
-    var bytes = encoding.encode(text);
-    for (int i = 0; i < bytes.length; i++) {
-      int byte = bytes[i];
-      if (byte < 128 &&
-          ((canonicalTable[byte >> 4] & (1 << (byte & 0x0f))) != 0)) {
-        result.writeCharCode(byte);
-      } else if (spaceToPlus && byte == _SPACE) {
-        result.writeCharCode(_PLUS);
-      } else {
-        result.writeCharCode(_PERCENT);
-        byteToHex(byte, result);
-      }
-    }
-    return result.toString();
-  }
-  static int _hexCharPairToByte(String s, int pos) {
-    int byte = 0;
-    for (int i = 0; i < 2; i++) {
-      var charCode = s.codeUnitAt(pos + i);
-      if (0x30 <= charCode && charCode <= 0x39) {
-        byte = byte * 16 + charCode - 0x30;
-      } else {
-        charCode |= 0x20;
-        if (0x61 <= charCode && charCode <= 0x66) {
-          byte = byte * 16 + charCode - 0x57;
-        } else {
-          throw new ArgumentError("Invalid URL encoding");
-        }
-      }
-    }
-    return byte;
-  }
-  static String _uriDecode(String text,
-      {bool plusToSpace: false, Encoding encoding: UTF8}) {
-    bool simple = true;
-    for (int i = 0; i < text.length && simple; i++) {
-      var codeUnit = text.codeUnitAt(i);
-      simple = codeUnit != _PERCENT && codeUnit != _PLUS;
-    }
-    List<int> bytes;
-    if (simple) {
-      if (encoding == UTF8 || encoding == LATIN1) {
-        return text;
-      } else {
-        bytes = text.codeUnits;
-      }
-    } else {
-      bytes = ((__x62) => DDC$RT.cast(__x62, DDC$RT.type((List<dynamic> _) {}),
-          DDC$RT.type((List<int> _) {}), "CastExact",
-          """line 2138, column 15 of dart:core/uri.dart: """,
-          __x62 is List<int>, false))(new List());
-      for (int i = 0; i < text.length; i++) {
-        var codeUnit = text.codeUnitAt(i);
-        if (codeUnit > 127) {
-          throw new ArgumentError("Illegal percent encoding in URI");
-        }
-        if (codeUnit == _PERCENT) {
-          if (i + 3 > text.length) {
-            throw new ArgumentError('Truncated URI');
-          }
-          bytes.add(_hexCharPairToByte(text, i + 1));
-          i += 2;
-        } else if (plusToSpace && codeUnit == _PLUS) {
-          bytes.add(_SPACE);
-        } else {
-          bytes.add(codeUnit);
-        }
-      }
-    }
-    return encoding.decode(bytes);
-  }
-  static bool _isAlphabeticCharacter(int codeUnit) =>
-      (codeUnit >= _LOWER_CASE_A && codeUnit <= _LOWER_CASE_Z) ||
-          (codeUnit >= _UPPER_CASE_A && codeUnit <= _UPPER_CASE_Z);
-  static const _unreservedTable = const [
-    0x0000,
-    0x0000,
-    0x6000,
-    0x03ff,
-    0xfffe,
-    0x87ff,
-    0xfffe,
-    0x47ff
-  ];
-  static const _unreserved2396Table = const [
-    0x0000,
-    0x0000,
-    0x6782,
-    0x03ff,
-    0xfffe,
-    0x87ff,
-    0xfffe,
-    0x47ff
-  ];
-  static const _encodeFullTable = const [
-    0x0000,
-    0x0000,
-    0xffda,
-    0xafff,
-    0xffff,
-    0x87ff,
-    0xfffe,
-    0x47ff
-  ];
-  static const _schemeTable = const [
-    0x0000,
-    0x0000,
-    0x6800,
-    0x03ff,
-    0xfffe,
-    0x07ff,
-    0xfffe,
-    0x07ff
-  ];
-  static const _schemeLowerTable = const [
-    0x0000,
-    0x0000,
-    0x6800,
-    0x03ff,
-    0x0000,
-    0x0000,
-    0xfffe,
-    0x07ff
-  ];
-  static const _subDelimitersTable = const [
-    0x0000,
-    0x0000,
-    0x7fd2,
-    0x2bff,
-    0xfffe,
-    0x87ff,
-    0xfffe,
-    0x47ff
-  ];
-  static const _genDelimitersTable = const [
-    0x0000,
-    0x0000,
-    0x8008,
-    0x8400,
-    0x0001,
-    0x2800,
-    0x0000,
-    0x0000
-  ];
-  static const _userinfoTable = const [
-    0x0000,
-    0x0000,
-    0x7fd2,
-    0x2fff,
-    0xfffe,
-    0x87ff,
-    0xfffe,
-    0x47ff
-  ];
-  static const _regNameTable = const [
-    0x0000,
-    0x0000,
-    0x7ff2,
-    0x2bff,
-    0xfffe,
-    0x87ff,
-    0xfffe,
-    0x47ff
-  ];
-  static const _pathCharTable = const [
-    0x0000,
-    0x0000,
-    0x7fd2,
-    0x2fff,
-    0xffff,
-    0x87ff,
-    0xfffe,
-    0x47ff
-  ];
-  static const _pathCharOrSlashTable = const [
-    0x0000,
-    0x0000,
-    0xffd2,
-    0x2fff,
-    0xffff,
-    0x87ff,
-    0xfffe,
-    0x47ff
-  ];
-  static const _queryCharTable = const [
-    0x0000,
-    0x0000,
-    0xffd2,
-    0xafff,
-    0xffff,
-    0x87ff,
-    0xfffe,
-    0x47ff
-  ];
-}
+        }
+       else {
+        targetPath = _removeDotSegments(_merge(this._path, reference.path));
+        }
+       if (reference.hasQuery) targetQuery = reference.query;
+      }
+     targetUserInfo = this._userInfo;
+     targetHost = this._host;
+     targetPort = ((__x53) => DDC$RT.cast(__x53, num, int, "CastGeneral", """line 1493, column 22 of dart:core/uri.dart: """, __x53 is int, true))(this._port);
+    }
+  }
+ String fragment = ((__x54) => DDC$RT.cast(__x54, dynamic, String, "CastGeneral", """line 1496, column 23 of dart:core/uri.dart: """, __x54 is String, true))(reference.hasFragment ? reference.fragment : null);
+ return new Uri._internal(targetScheme, targetUserInfo, targetHost, targetPort, targetPath, targetQuery, fragment);
+}
+ bool get hasAuthority => _host != null;
+ bool get hasPort => _port != null;
+ bool get hasQuery => _query != null;
+ bool get hasFragment => _fragment != null;
+ String get origin {
+if (scheme == "" || _host == null || _host == "") {
+  throw new StateError("Cannot use origin without a scheme: $this");
+  }
+ if (scheme != "http" && scheme != "https") {
+  throw new StateError("Origin is only applicable schemes http and https: $this");
+  }
+ if (_port == null) return "$scheme://$_host";
+ return "$scheme://$_host:$_port";
+}
+ String toFilePath({
+bool windows}
+) {
+if (scheme != "" && scheme != "file") {
+  throw new UnsupportedError("Cannot extract a file path from a $scheme URI");
+  }
+ if (query != "") {
+  throw new UnsupportedError("Cannot extract a file path from a URI with a query component");
+  }
+ if (fragment != "") {
+  throw new UnsupportedError("Cannot extract a file path from a URI with a fragment component");
+  }
+ if (windows == null) windows = _isWindows;
+ return windows ? _toWindowsFilePath() : _toFilePath();
+}
+ String _toFilePath() {
+if (host != "") {
+  throw new UnsupportedError("Cannot extract a non-Windows file path from a file URI " "with an authority");
+  }
+ _checkNonWindowsPathReservedCharacters(pathSegments, false);
+ var result = new StringBuffer();
+ if (_isPathAbsolute) result.write("/");
+ result.writeAll(pathSegments, "/");
+ return result.toString();
+}
+ String _toWindowsFilePath() {
+bool hasDriveLetter = false;
+ var segments = pathSegments;
+ if (segments.length > 0 && segments[0].length == 2 && segments[0].codeUnitAt(1) == _COLON) {
+  _checkWindowsDriveLetter(segments[0].codeUnitAt(0), false);
+   _checkWindowsPathReservedCharacters(segments, false, 1);
+   hasDriveLetter = true;
+  }
+ else {
+  _checkWindowsPathReservedCharacters(segments, false);
+  }
+ var result = new StringBuffer();
+ if (_isPathAbsolute && !hasDriveLetter) result.write("\\");
+ if (host != "") {
+  result.write("\\");
+   result.write(host);
+   result.write("\\");
+  }
+ result.writeAll(segments, "\\");
+ if (hasDriveLetter && segments.length == 1) result.write("\\");
+ return result.toString();
+}
+ bool get _isPathAbsolute {
+if (path == null || path.isEmpty) return false;
+ return path.startsWith('/');
+}
+ void _writeAuthority(StringSink ss) {
+if (_userInfo.isNotEmpty) {
+  ss.write(_userInfo);
+   ss.write("@");
+  }
+ if (_host != null) ss.write(_host);
+ if (_port != null) {
+  ss.write(":");
+   ss.write(_port);
+  }
+}
+ String toString() {
+StringBuffer sb = new StringBuffer();
+ _addIfNonEmpty(sb, scheme, scheme, ':');
+ if (hasAuthority || path.startsWith("//") || (scheme == "file")) {
+  sb.write("//");
+   _writeAuthority(sb);
+  }
+ sb.write(path);
+ if (_query != null) {
+  sb..write("?")..write(_query);
+  }
+ if (_fragment != null) {
+  sb..write("#")..write(_fragment);
+  }
+ return sb.toString();
+}
+ bool operator ==(other) {
+if (other is! Uri) return false;
+ Uri uri = DDC$RT.cast(other, dynamic, Uri, "CastGeneral", """line 1702, column 15 of dart:core/uri.dart: """, other is Uri, true);
+ return scheme == uri.scheme && hasAuthority == uri.hasAuthority && userInfo == uri.userInfo && host == uri.host && port == uri.port && path == uri.path && hasQuery == uri.hasQuery && query == uri.query && hasFragment == uri.hasFragment && fragment == uri.fragment;
+}
+ int get hashCode {
+int combine(part, current) {
+  return ((__x55) => DDC$RT.cast(__x55, dynamic, int, "CastGeneral", """line 1718, column 14 of dart:core/uri.dart: """, __x55 is int, true))((current * 31 + part.hashCode) & 0x3FFFFFFF);
+  }
+ return combine(scheme, combine(userInfo, combine(host, combine(port, combine(path, combine(query, combine(fragment, 1)))))));
+}
+ static void _addIfNonEmpty(StringBuffer sb, String test, String first, String second) {
+if ("" != test) {
+  sb.write(first);
+   sb.write(second);
+  }
+}
+ static String encodeComponent(String component) {
+return _uriEncode(DDC$RT.cast(_unreserved2396Table, dynamic, DDC$RT.type((List<int> _) {
+  }
+), "CastGeneral", """line 1753, column 23 of dart:core/uri.dart: """, _unreserved2396Table is List<int>, false), component);
+}
+ static String encodeQueryComponent(String component, {
+Encoding encoding : UTF8}
+) {
+return _uriEncode(DDC$RT.cast(_unreservedTable, dynamic, DDC$RT.type((List<int> _) {
+  }
+), "CastGeneral", """line 1792, column 9 of dart:core/uri.dart: """, _unreservedTable is List<int>, false), component, encoding: encoding, spaceToPlus: true);
+}
+ static String decodeComponent(String encodedComponent) {
+return _uriDecode(encodedComponent);
+}
+ static String decodeQueryComponent(String encodedComponent, {
+Encoding encoding : UTF8}
+) {
+return _uriDecode(encodedComponent, plusToSpace: true, encoding: encoding);
+}
+ static String encodeFull(String uri) {
+return _uriEncode(DDC$RT.cast(_encodeFullTable, dynamic, DDC$RT.type((List<int> _) {
+  }
+), "CastGeneral", """line 1836, column 23 of dart:core/uri.dart: """, _encodeFullTable is List<int>, false), uri);
+}
+ static String decodeFull(String uri) {
+return _uriDecode(uri);
+}
+ static Map<String, String> splitQueryString(String query, {
+Encoding encoding : UTF8}
+) {
+return ((__x56) => DDC$RT.cast(__x56, dynamic, DDC$RT.type((Map<String, String> _) {
+  }
+), "CastGeneral", """line 1868, column 12 of dart:core/uri.dart: """, __x56 is Map<String, String>, false))(query.split("&").fold({
+  }
+, (map, element) {
+  int index = ((__x57) => DDC$RT.cast(__x57, dynamic, int, "CastGeneral", """line 1869, column 19 of dart:core/uri.dart: """, __x57 is int, true))(element.indexOf("="));
+   if (index == -1) {
+    if (element != "") {
+      map[decodeQueryComponent(DDC$RT.cast(element, dynamic, String, "CastGeneral", """line 1872, column 36 of dart:core/uri.dart: """, element is String, true), encoding: encoding)] = "";
+      }
+    }
+   else if (index != 0) {
+    var key = element.substring(0, index);
+     var value = element.substring(index + 1);
+     map[Uri.decodeQueryComponent(DDC$RT.cast(key, dynamic, String, "CastGeneral", """line 1877, column 38 of dart:core/uri.dart: """, key is String, true), encoding: encoding)] = decodeQueryComponent(DDC$RT.cast(value, dynamic, String, "CastGeneral", """line 1878, column 34 of dart:core/uri.dart: """, value is String, true), encoding: encoding);
+    }
+   return map;
+  }
+));
+}
+ static List<int> parseIPv4Address(String host) {
+void error(String msg) {
+  throw new FormatException('Illegal IPv4 address, $msg');
+  }
+ var bytes = host.split('.');
+ if (bytes.length != 4) {
+  error('IPv4 address should contain exactly 4 parts');
+  }
+ return ((__x58) => DDC$RT.cast(__x58, DDC$RT.type((List<dynamic> _) {
+  }
+), DDC$RT.type((List<int> _) {
+  }
+), "CastDynamic", """line 1900, column 12 of dart:core/uri.dart: """, __x58 is List<int>, false))(bytes.map((byteString) {
+  int byte = int.parse(DDC$RT.cast(byteString, dynamic, String, "CastGeneral", """line 1902, column 32 of dart:core/uri.dart: """, byteString is String, true));
+   if (byte < 0 || byte > 255) {
+    error('each part must be in the range of `0..255`');
+    }
+   return byte;
+  }
+).toList());
+}
+ static List<int> parseIPv6Address(String host, [int start = 0, int end]) {
+if (end == null) end = host.length;
+ void error(String msg, [position]) {
+  throw new FormatException('Illegal IPv6 address, $msg', host, position);
+  }
+ int parseHex(int start, int end) {
+  if (end - start > 4) {
+    error('an IPv6 part can only contain a maximum of 4 hex digits', start);
+    }
+   int value = int.parse(host.substring(start, end), radix: 16);
+   if (value < 0 || value > (1 << 16) - 1) {
+    error('each part must be in the range of `0x0..0xFFFF`', start);
+    }
+   return value;
+  }
+ if (host.length < 2) error('address is too short');
+ List<int> parts = ((__x59) => DDC$RT.cast(__x59, DDC$RT.type((List<dynamic> _) {
+  }
+), DDC$RT.type((List<int> _) {
+  }
+), "CastLiteral", """line 1950, column 23 of dart:core/uri.dart: """, __x59 is List<int>, false))([]);
+ bool wildcardSeen = false;
+ int partStart = start;
+ for (int i = start;
+ i < end;
+ i++) {
+  if (host.codeUnitAt(i) == _COLON) {
+    if (i == start) {
+      i++;
+       if (host.codeUnitAt(i) != _COLON) {
+        error('invalid start colon.', i);
+        }
+       partStart = i;
+      }
+     if (i == partStart) {
+      if (wildcardSeen) {
+        error('only one wildcard `::` is allowed', i);
+        }
+       wildcardSeen = true;
+       parts.add(-1);
+      }
+     else {
+      parts.add(parseHex(partStart, i));
+      }
+     partStart = i + 1;
+    }
+  }
+ if (parts.length == 0) error('too few parts');
+ bool atEnd = (partStart == end);
+ bool isLastWildcard = (parts.last == -1);
+ if (atEnd && !isLastWildcard) {
+  error('expected a part after last `:`', end);
+  }
+ if (!atEnd) {
+  try {
+    parts.add(parseHex(partStart, end));
+    }
+   catch (e) {
+    try {
+      List<int> last = parseIPv4Address(host.substring(partStart, end));
+       parts.add(last[0] << 8 | last[1]);
+       parts.add(last[2] << 8 | last[3]);
+      }
+     catch (e) {
+      error('invalid end of IPv6 address.', partStart);
+      }
+    }
+  }
+ if (wildcardSeen) {
+  if (parts.length > 7) {
+    error('an address with a wildcard must have less than 7 parts');
+    }
+  }
+ else if (parts.length != 8) {
+  error('an address without a wildcard must contain exactly 8 parts');
+  }
+ List bytes = new List<int>(16);
+ for (int i = 0, index = 0;
+ i < parts.length;
+ i++) {
+  int value = parts[i];
+   if (value == -1) {
+    int wildCardLength = 9 - parts.length;
+     for (int j = 0;
+     j < wildCardLength;
+     j++) {
+      bytes[index] = 0;
+       bytes[index + 1] = 0;
+       index += 2;
+      }
+    }
+   else {
+    bytes[index] = value >> 8;
+     bytes[index + 1] = value & 0xff;
+     index += 2;
+    }
+  }
+ return DDC$RT.cast(bytes, DDC$RT.type((List<dynamic> _) {
+  }
+), DDC$RT.type((List<int> _) {
+  }
+), "CastDynamic", """line 2022, column 12 of dart:core/uri.dart: """, bytes is List<int>, false);
+}
+ static const int _SPACE = 0x20;
+ static const int _DOUBLE_QUOTE = 0x22;
+ static const int _NUMBER_SIGN = 0x23;
+ static const int _PERCENT = 0x25;
+ static const int _ASTERISK = 0x2A;
+ static const int _PLUS = 0x2B;
+ static const int _DOT = 0x2E;
+ static const int _SLASH = 0x2F;
+ static const int _ZERO = 0x30;
+ static const int _NINE = 0x39;
+ static const int _COLON = 0x3A;
+ static const int _LESS = 0x3C;
+ static const int _GREATER = 0x3E;
+ static const int _QUESTION = 0x3F;
+ static const int _AT_SIGN = 0x40;
+ static const int _UPPER_CASE_A = 0x41;
+ static const int _UPPER_CASE_F = 0x46;
+ static const int _UPPER_CASE_Z = 0x5A;
+ static const int _LEFT_BRACKET = 0x5B;
+ static const int _BACKSLASH = 0x5C;
+ static const int _RIGHT_BRACKET = 0x5D;
+ static const int _LOWER_CASE_A = 0x61;
+ static const int _LOWER_CASE_F = 0x66;
+ static const int _LOWER_CASE_Z = 0x7A;
+ static const int _BAR = 0x7C;
+ static String _uriEncode(List<int> canonicalTable, String text, {
+Encoding encoding : UTF8, bool spaceToPlus : false}
+) {
+byteToHex(byte, buffer) {
+  const String hex = '0123456789ABCDEF';
+   buffer.writeCharCode(hex.codeUnitAt(((__x60) => DDC$RT.cast(__x60, dynamic, int, "CastGeneral", """line 2063, column 43 of dart:core/uri.dart: """, __x60 is int, true))(byte >> 4)));
+   buffer.writeCharCode(hex.codeUnitAt(((__x61) => DDC$RT.cast(__x61, dynamic, int, "CastGeneral", """line 2064, column 43 of dart:core/uri.dart: """, __x61 is int, true))(byte & 0x0f)));
+  }
+ StringBuffer result = new StringBuffer();
+ var bytes = encoding.encode(text);
+ for (int i = 0;
+ i < bytes.length;
+ i++) {
+  int byte = bytes[i];
+   if (byte < 128 && ((canonicalTable[byte >> 4] & (1 << (byte & 0x0f))) != 0)) {
+    result.writeCharCode(byte);
+    }
+   else if (spaceToPlus && byte == _SPACE) {
+    result.writeCharCode(_PLUS);
+    }
+   else {
+    result.writeCharCode(_PERCENT);
+     byteToHex(byte, result);
+    }
+  }
+ return result.toString();
+}
+ static int _hexCharPairToByte(String s, int pos) {
+int byte = 0;
+ for (int i = 0;
+ i < 2;
+ i++) {
+  var charCode = s.codeUnitAt(pos + i);
+   if (0x30 <= charCode && charCode <= 0x39) {
+    byte = byte * 16 + charCode - 0x30;
+    }
+   else {
+    charCode |= 0x20;
+     if (0x61 <= charCode && charCode <= 0x66) {
+      byte = byte * 16 + charCode - 0x57;
+      }
+     else {
+      throw new ArgumentError("Invalid URL encoding");
+      }
+    }
+  }
+ return byte;
+}
+ static String _uriDecode(String text, {
+bool plusToSpace : false, Encoding encoding : UTF8}
+) {
+bool simple = true;
+ for (int i = 0;
+ i < text.length && simple;
+ i++) {
+  var codeUnit = text.codeUnitAt(i);
+   simple = codeUnit != _PERCENT && codeUnit != _PLUS;
+  }
+ List<int> bytes;
+ if (simple) {
+  if (encoding == UTF8 || encoding == LATIN1) {
+    return text;
+    }
+   else {
+    bytes = text.codeUnits;
+    }
+  }
+ else {
+  bytes = ((__x62) => DDC$RT.cast(__x62, DDC$RT.type((List<dynamic> _) {
+    }
+  ), DDC$RT.type((List<int> _) {
+    }
+  ), "CastExact", """line 2138, column 15 of dart:core/uri.dart: """, __x62 is List<int>, false))(new List());
+   for (int i = 0;
+   i < text.length;
+   i++) {
+    var codeUnit = text.codeUnitAt(i);
+     if (codeUnit > 127) {
+      throw new ArgumentError("Illegal percent encoding in URI");
+      }
+     if (codeUnit == _PERCENT) {
+      if (i + 3 > text.length) {
+        throw new ArgumentError('Truncated URI');
+        }
+       bytes.add(_hexCharPairToByte(text, i + 1));
+       i += 2;
+      }
+     else if (plusToSpace && codeUnit == _PLUS) {
+      bytes.add(_SPACE);
+      }
+     else {
+      bytes.add(codeUnit);
+      }
+    }
+  }
+ return encoding.decode(bytes);
+}
+ static bool _isAlphabeticCharacter(int codeUnit) => (codeUnit >= _LOWER_CASE_A && codeUnit <= _LOWER_CASE_Z) || (codeUnit >= _UPPER_CASE_A && codeUnit <= _UPPER_CASE_Z);
+ static const _unreservedTable = const [0x0000, 0x0000, 0x6000, 0x03ff, 0xfffe, 0x87ff, 0xfffe, 0x47ff];
+ static const _unreserved2396Table = const [0x0000, 0x0000, 0x6782, 0x03ff, 0xfffe, 0x87ff, 0xfffe, 0x47ff];
+ static const _encodeFullTable = const [0x0000, 0x0000, 0xffda, 0xafff, 0xffff, 0x87ff, 0xfffe, 0x47ff];
+ static const _schemeTable = const [0x0000, 0x0000, 0x6800, 0x03ff, 0xfffe, 0x07ff, 0xfffe, 0x07ff];
+ static const _schemeLowerTable = const [0x0000, 0x0000, 0x6800, 0x03ff, 0x0000, 0x0000, 0xfffe, 0x07ff];
+ static const _subDelimitersTable = const [0x0000, 0x0000, 0x7fd2, 0x2bff, 0xfffe, 0x87ff, 0xfffe, 0x47ff];
+ static const _genDelimitersTable = const [0x0000, 0x0000, 0x8008, 0x8400, 0x0001, 0x2800, 0x0000, 0x0000];
+ static const _userinfoTable = const [0x0000, 0x0000, 0x7fd2, 0x2fff, 0xfffe, 0x87ff, 0xfffe, 0x47ff];
+ static const _regNameTable = const [0x0000, 0x0000, 0x7ff2, 0x2bff, 0xfffe, 0x87ff, 0xfffe, 0x47ff];
+ static const _pathCharTable = const [0x0000, 0x0000, 0x7fd2, 0x2fff, 0xffff, 0x87ff, 0xfffe, 0x47ff];
+ static const _pathCharOrSlashTable = const [0x0000, 0x0000, 0xffd2, 0x2fff, 0xffff, 0x87ff, 0xfffe, 0x47ff];
+ static const _queryCharTable = const [0x0000, 0x0000, 0xffd2, 0xafff, 0xffff, 0x87ff, 0xfffe, 0x47ff];
+}