Remove dart backend

test/dart_codegen/expect/core/uri.dart

Index: test/dart_codegen/expect/core/uri.dart
diff --git a/test/dart_codegen/expect/core/uri.dart b/test/dart_codegen/expect/core/uri.dart
deleted file mode 100644
index 1050e8634b503d546a453303c16f0ddba8147fd4..0000000000000000000000000000000000000000
--- a/test/dart_codegen/expect/core/uri.dart
+++ /dev/null
@@ -1,1277 +0,0 @@
-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 DEVC$RT.cast(_port, num, int, "ImplicitCast", """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;
-         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));
-   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: DEVC$RT.cast(host, dynamic, String, "DynamicCast", """line 609, column 26 of dart:core/uri.dart: """, host is String, true), port: DEVC$RT.cast(port, dynamic, int, "DynamicCast", """line 610, column 26 of dart:core/uri.dart: """, port is int, true), pathSegments: unencodedPath.split("/"), queryParameters: queryParameters);
-  }
- factory Uri.file(String path, {
-  bool windows}
-) {
-  windows = windows == null ? Uri._isWindows : windows;
-   return windows ? ((__x21) => DEVC$RT.cast(__x21, dynamic, Uri, "DynamicCast", """line 698, column 22 of dart:core/uri.dart: """, __x21 is Uri, true))(_makeWindowsFileUrl(path)) : ((__x22) => DEVC$RT.cast(__x22, dynamic, Uri, "DynamicCast", """line 698, column 50 of dart:core/uri.dart: """, __x22 is Uri, true))(_makeFileUri(path));
-  }
- external static Uri get base;
- external static bool get _isWindows;
- 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 = ((__x23) => DEVC$RT.cast(__x23, num, int, "ImplicitCast", """line 889, column 14 of dart:core/uri.dart: """, __x23 is int, true))(this._port);
-     if (schemeChanged) {
-      port = _makePort(port, scheme);
-      }
-    }
-   if (host != null) {
-    host = _makeHost(host, 0, host.length, false);
-    }
-   else if (this.hasAuthority) {
-    host = this.host;
-    }
-   else if (userInfo.isNotEmpty || port != null || isFile) {
-    host = "";
-    }
-   bool ensureLeadingSlash = (host != null);
-   if (path != null || pathSegments != null) {
-    path = _makePath(path, 0, _stringOrNullLength(path), pathSegments, ensureLeadingSlash, isFile);
-    }
-   else {
-    path = this.path;
-     if ((isFile || (ensureLeadingSlash && !path.isEmpty)) && !path.startsWith('/')) {
-      path = "/$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 = new UnmodifiableListView<String>(pathToSplit == "" ? const <String> [] : new List<String>.from(pathToSplit.split("/").map(Uri.decodeComponent), growable: false));
-    }
-   return _pathSegments;
-  }
- Map<String, String> get queryParameters {
-  if (_queryParameters == null) {
-    _queryParameters = new UnmodifiableMapView<String, String>(splitQueryString(query));
-    }
-   return _queryParameters;
-  }
- static int _makePort(int port, String scheme) {
-  if (port != null && port == _defaultPort(scheme)) return 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, DEVC$RT.cast(_userinfoTable, DEVC$RT.type((List<dynamic> _) {
-    }
-  ), DEVC$RT.type((List<int> _) {
-    }
-  ), "CompositeCast", """line 1127, 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, DEVC$RT.cast(_pathCharOrSlashTable, DEVC$RT.type((List<dynamic> _) {
-      }
-    ), DEVC$RT.type((List<int> _) {
-      }
-    ), "CompositeCast", """line 1140, column 45 of dart:core/uri.dart: """, _pathCharOrSlashTable is List<int>, false));
-    }
-   else {
-    result = pathSegments.map((s) => _uriEncode(DEVC$RT.cast(_pathCharTable, DEVC$RT.type((List<dynamic> _) {
-      }
-    ), DEVC$RT.type((List<int> _) {
-      }
-    ), "CompositeCast", """line 1142, column 51 of dart:core/uri.dart: """, _pathCharTable is List<int>, false), DEVC$RT.cast(s, dynamic, String, "DynamicCast", """line 1142, column 67 of dart:core/uri.dart: """, s is String, true))).join("/");
-    }
-   if (result.isEmpty) {
-    if (isFile) return "/";
-    }
-   else if ((isFile || ensureLeadingSlash) && result.codeUnitAt(0) != _SLASH) {
-    return "/$result";
-    }
-   return DEVC$RT.cast(result, dynamic, String, "DynamicCast", """line 1150, column 12 of dart:core/uri.dart: """, result is String, true);
-  }
- static String _makeQuery(String query, int start, int end, Map<String, String> queryParameters) {
-  if (query == null && queryParameters == null) return null;
-   if (query != null && queryParameters != null) {
-    throw new ArgumentError('Both query and queryParameters specified');
-    }
-   if (query != null) return _normalize(query, start, end, DEVC$RT.cast(_queryCharTable, DEVC$RT.type((List<dynamic> _) {
-    }
-  ), DEVC$RT.type((List<int> _) {
-    }
-  ), "CompositeCast", """line 1159, 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(DEVC$RT.cast(key, dynamic, String, "DynamicCast", """line 1168, column 45 of dart:core/uri.dart: """, key is String, true)));
-     if (value != null && !value.isEmpty) {
-      result.write("=");
-       result.write(Uri.encodeQueryComponent(DEVC$RT.cast(value, dynamic, String, "DynamicCast", """line 1171, 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, DEVC$RT.cast(_queryCharTable, DEVC$RT.type((List<dynamic> _) {
-    }
-  ), DEVC$RT.type((List<int> _) {
-    }
-  ), "CompositeCast", """line 1179, column 45 of dart:core/uri.dart: """, _queryCharTable is List<int>, false));
-  }
- static int _stringOrNullLength(String s) => (s == null) ? 0 : s.length;
- static bool _isHexDigit(int char) {
-  if (_NINE >= char) return _ZERO <= char;
-   char |= 0x20;
-   return _LOWER_CASE_A <= char && _LOWER_CASE_F >= char;
-  }
- static int _hexValue(int char) {
-  assert (_isHexDigit(char)); if (_NINE >= char) return char - _ZERO;
-   char |= 0x20;
-   return char - (_LOWER_CASE_A - 10);
-  }
- static String _normalizeEscape(String source, int index, bool lowerCase) {
-  assert (source.codeUnitAt(index) == _PERCENT); if (index + 2 >= source.length) {
-    return "%";
-    }
-   int firstDigit = source.codeUnitAt(index + 1);
-   int secondDigit = source.codeUnitAt(index + 2);
-   if (!_isHexDigit(firstDigit) || !_isHexDigit(secondDigit)) {
-    return "%";
-    }
-   int value = _hexValue(firstDigit) * 16 + _hexValue(secondDigit);
-   if (_isUnreservedChar(value)) {
-    if (lowerCase && _UPPER_CASE_A <= value && _UPPER_CASE_Z >= value) {
-      value |= 0x20;
-      }
-     return new String.fromCharCode(value);
-    }
-   if (firstDigit >= _LOWER_CASE_A || secondDigit >= _LOWER_CASE_A) {
-    return source.substring(index, index + 3).toUpperCase();
-    }
-   return null;
-  }
- static bool _isUnreservedChar(int ch) {
-  return ch < 127 && ((_unreservedTable[ch >> 4] & (1 << (ch & 0x0f))) != 0);
-  }
- static String _escapeChar(char) {
-  assert (char <= 0x10ffff); const hexDigits = "0123456789ABCDEF";
-   List codeUnits;
-   if (char < 0x80) {
-    codeUnits = new List(3);
-     codeUnits[0] = _PERCENT;
-     codeUnits[1] = hexDigits.codeUnitAt(((__x24) => DEVC$RT.cast(__x24, dynamic, int, "DynamicCast", """line 1249, column 43 of dart:core/uri.dart: """, __x24 is int, true))(char >> 4));
-     codeUnits[2] = hexDigits.codeUnitAt(((__x25) => DEVC$RT.cast(__x25, dynamic, int, "DynamicCast", """line 1250, column 43 of dart:core/uri.dart: """, __x25 is int, true))(char & 0xf));
-    }
-   else {
-    int flag = 0xc0;
-     int encodedBytes = 2;
-     if (char > 0x7ff) {
-      flag = 0xe0;
-       encodedBytes = 3;
-       if (char > 0xffff) {
-        encodedBytes = 4;
-         flag = 0xf0;
-        }
-      }
-     codeUnits = new List(3 * encodedBytes);
-     int index = 0;
-     while (--encodedBytes >= 0) {
-      int byte = ((__x26) => DEVC$RT.cast(__x26, dynamic, int, "DynamicCast", """line 1266, column 20 of dart:core/uri.dart: """, __x26 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(DEVC$RT.cast(codeUnits, DEVC$RT.type((List<dynamic> _) {
-    }
-  ), DEVC$RT.type((Iterable<int> _) {
-    }
-  ), "CompositeCast", """line 1274, column 37 of dart:core/uri.dart: """, codeUnits is Iterable<int>, false));
-  }
- 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);
-              }
-            }
-          }
-         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 = <String> [];
-   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 = 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(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 {
-          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 = ((__x27) => DEVC$RT.cast(__x27, num, int, "ImplicitCast", """line 1490, column 22 of dart:core/uri.dart: """, __x27 is int, true))(this._port);
-      }
-    }
-   String fragment = 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 = DEVC$RT.cast(other, dynamic, Uri, "DynamicCast", """line 1699, 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 ((__x28) => DEVC$RT.cast(__x28, dynamic, int, "DynamicCast", """line 1715, column 14 of dart:core/uri.dart: """, __x28 is int, true))((current * 31 + part.hashCode) & 0x3FFFFFFF);
-    }
-   return combine(scheme, combine(userInfo, combine(host, combine(port, combine(path, combine(query, combine(fragment, 1)))))));
-  }
- static void _addIfNonEmpty(StringBuffer sb, String test, String first, String second) {
-  if ("" != test) {
-    sb.write(first);
-     sb.write(second);
-    }
-  }
- static String encodeComponent(String component) {
-  return _uriEncode(DEVC$RT.cast(_unreserved2396Table, DEVC$RT.type((List<dynamic> _) {
-    }
-  ), DEVC$RT.type((List<int> _) {
-    }
-  ), "CompositeCast", """line 1750, column 23 of dart:core/uri.dart: """, _unreserved2396Table is List<int>, false), component);
-  }
- static String encodeQueryComponent(String component, {
-  Encoding encoding : UTF8}
-) {
-  return _uriEncode(DEVC$RT.cast(_unreservedTable, DEVC$RT.type((List<dynamic> _) {
-    }
-  ), DEVC$RT.type((List<int> _) {
-    }
-  ), "CompositeCast", """line 1789, column 9 of dart:core/uri.dart: """, _unreservedTable is List<int>, false), component, encoding: encoding, spaceToPlus: true);
-  }
- static String decodeComponent(String encodedComponent) {
-  return _uriDecode(encodedComponent);
-  }
- static String decodeQueryComponent(String encodedComponent, {
-  Encoding encoding : UTF8}
-) {
-  return _uriDecode(encodedComponent, plusToSpace: true, encoding: encoding);
-  }
- static String encodeFull(String uri) {
-  return _uriEncode(DEVC$RT.cast(_encodeFullTable, DEVC$RT.type((List<dynamic> _) {
-    }
-  ), DEVC$RT.type((List<int> _) {
-    }
-  ), "CompositeCast", """line 1833, 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 ((__x29) => DEVC$RT.cast(__x29, dynamic, DEVC$RT.type((Map<String, String> _) {
-    }
-  ), "CompositeCast", """line 1865, column 12 of dart:core/uri.dart: """, __x29 is Map<String, String>, false))(query.split("&").fold({
-    }
-  , (map, element) {
-    int index = ((__x30) => DEVC$RT.cast(__x30, dynamic, int, "DynamicCast", """line 1866, column 19 of dart:core/uri.dart: """, __x30 is int, true))(element.indexOf("="));
-     if (index == -1) {
-      if (element != "") {
-        map[decodeQueryComponent(DEVC$RT.cast(element, dynamic, String, "DynamicCast", """line 1869, 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(DEVC$RT.cast(key, dynamic, String, "DynamicCast", """line 1874, column 38 of dart:core/uri.dart: """, key is String, true), encoding: encoding)] = decodeQueryComponent(DEVC$RT.cast(value, dynamic, String, "DynamicCast", """line 1875, 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, $msg');
-    }
-   var bytes = host.split('.');
-   if (bytes.length != 4) {
-    error('IPv4 address should contain exactly 4 parts');
-    }
-   return ((__x31) => DEVC$RT.cast(__x31, DEVC$RT.type((List<dynamic> _) {
-    }
-  ), DEVC$RT.type((List<int> _) {
-    }
-  ), "CompositeCast", """line 1897, column 12 of dart:core/uri.dart: """, __x31 is List<int>, false))(bytes.map((byteString) {
-    int byte = int.parse(DEVC$RT.cast(byteString, dynamic, String, "DynamicCast", """line 1899, 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, $msg', host, DEVC$RT.cast(position, dynamic, int, "DynamicCast", """line 1934, column 69 of dart:core/uri.dart: """, position is int, true));
-    }
-   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 = <int> [];
-   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 DEVC$RT.cast(bytes, DEVC$RT.type((List<dynamic> _) {
-    }
-  ), DEVC$RT.type((List<int> _) {
-    }
-  ), "CompositeCast", """line 2019, column 12 of dart:core/uri.dart: """, bytes is List<int>, false);
-  }
- static const int _SPACE = 0x20;
- static const int _DOUBLE_QUOTE = 0x22;
- static const int _NUMBER_SIGN = 0x23;
- static const int _PERCENT = 0x25;
- static const int _ASTERISK = 0x2A;
- static const int _PLUS = 0x2B;
- static const int _DOT = 0x2E;
- static const int _SLASH = 0x2F;
- static const int _ZERO = 0x30;
- static const int _NINE = 0x39;
- static const int _COLON = 0x3A;
- static const int _LESS = 0x3C;
- static const int _GREATER = 0x3E;
- static const int _QUESTION = 0x3F;
- static const int _AT_SIGN = 0x40;
- static const int _UPPER_CASE_A = 0x41;
- static const int _UPPER_CASE_F = 0x46;
- static const int _UPPER_CASE_Z = 0x5A;
- static const int _LEFT_BRACKET = 0x5B;
- static const int _BACKSLASH = 0x5C;
- static const int _RIGHT_BRACKET = 0x5D;
- static const int _LOWER_CASE_A = 0x61;
- static const int _LOWER_CASE_F = 0x66;
- static const int _LOWER_CASE_Z = 0x7A;
- static const int _BAR = 0x7C;
- static String _uriEncode(List<int> canonicalTable, String text, {
-  Encoding encoding : UTF8, bool spaceToPlus : false}
-) {
-  byteToHex(byte, buffer) {
-    const String hex = '0123456789ABCDEF';
-     buffer.writeCharCode(hex.codeUnitAt(((__x32) => DEVC$RT.cast(__x32, dynamic, int, "DynamicCast", """line 2060, column 43 of dart:core/uri.dart: """, __x32 is int, true))(byte >> 4)));
-     buffer.writeCharCode(hex.codeUnitAt(((__x33) => DEVC$RT.cast(__x33, dynamic, int, "DynamicCast", """line 2061, column 43 of dart:core/uri.dart: """, __x33 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 = new List<int>();
-     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];
-}