Library custom formatters

test/codegen_expected/path/path.js

 dart_library.library('path', null, /* Imports */[
   'dart_sdk'
 ], function load__path(exports, dart_sdk) {
   'use strict';
   const core = dart_sdk.core;
   const _interceptors = dart_sdk._interceptors;
   const dart = dart_sdk.dart;
   const dartx = dart_sdk.dartx;
-  const path$ = Object.create(null);
   const src__characters = Object.create(null);
-  const src__context = Object.create(null);
-  const src__internal_style = Object.create(null);
-  const src__parsed_path = Object.create(null);
-  const src__path_exception = Object.create(null);
+  const src__style__windows = Object.create(null);
   const src__style__posix = Object.create(null);
   const src__style__url = Object.create(null);
-  const src__style__windows = Object.create(null);
+  const src__path_exception = Object.create(null);
   const src__style = Object.create(null);
   const src__utils = Object.create(null);
+  const src__parsed_path = Object.create(null);
+  const src__internal_style = Object.create(null);
+  const src__context = Object.create(null);
+  const path$ = Object.create(null);
+  let JSArrayOfString = () => (JSArrayOfString = dart.constFn(_interceptors.JSArray$(core.String)))();
+  let ListOfString = () => (ListOfString = dart.constFn(core.List$(core.String)))();
   let IterableOfString = () => (IterableOfString = dart.constFn(core.Iterable$(core.String)))();
-  let ListOfString = () => (ListOfString = dart.constFn(core.List$(core.String)))();
-  let JSArrayOfString = () => (JSArrayOfString = dart.constFn(_interceptors.JSArray$(core.String)))();
+  let StringTobool = () => (StringTobool = dart.constFn(dart.definiteFunctionType(core.bool, [core.String])))();
+  let intTobool = () => (intTobool = dart.constFn(dart.definiteFunctionType(core.bool, [core.int])))();
+  let intToString = () => (intToString = dart.constFn(dart.definiteFunctionType(core.String, [core.int])))();
+  let VoidToString = () => (VoidToString = dart.constFn(dart.definiteFunctionType(core.String, [])))();
+  let VoidToContext = () => (VoidToContext = dart.constFn(dart.definiteFunctionType(src__context.Context, [])))();
+  let StringToString = () => (StringToString = dart.constFn(dart.definiteFunctionType(core.String, [core.String])))();
+  let StringAndListOfStringTodynamic = () => (StringAndListOfStringTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [core.String, ListOfString()])))();
   let String__ToString = () => (String__ToString = dart.constFn(dart.definiteFunctionType(core.String, [core.String], [core.String, core.String, core.String, core.String, core.String, core.String])))();
-  let StringToString = () => (StringToString = dart.constFn(dart.definiteFunctionType(core.String, [core.String])))();
-  let StringTobool = () => (StringTobool = dart.constFn(dart.definiteFunctionType(core.bool, [core.String])))();
   let String__ToString$ = () => (String__ToString$ = dart.constFn(dart.definiteFunctionType(core.String, [core.String], [core.String, core.String, core.String, core.String, core.String, core.String, core.String])))();
   let IterableOfStringToString = () => (IterableOfStringToString = dart.constFn(dart.definiteFunctionType(core.String, [IterableOfString()])))();
   let StringToListOfString = () => (StringToListOfString = dart.constFn(dart.definiteFunctionType(ListOfString(), [core.String])))();
   let String__ToString$0 = () => (String__ToString$0 = dart.constFn(dart.definiteFunctionType(core.String, [core.String], {from: core.String})))();
   let StringAndStringTobool = () => (StringAndStringTobool = dart.constFn(dart.definiteFunctionType(core.bool, [core.String, core.String])))();
   let dynamicToString = () => (dynamicToString = dart.constFn(dart.definiteFunctionType(core.String, [dart.dynamic])))();
   let StringToUri = () => (StringToUri = dart.constFn(dart.definiteFunctionType(core.Uri, [core.String])))();
-  let VoidToContext = () => (VoidToContext = dart.constFn(dart.definiteFunctionType(src__context.Context, [])))();
-  let StringAndListOfStringTodynamic = () => (StringAndListOfStringTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [core.String, ListOfString()])))();
-  let intToString = () => (intToString = dart.constFn(dart.definiteFunctionType(core.String, [core.int])))();
-  let VoidToString = () => (VoidToString = dart.constFn(dart.definiteFunctionType(core.String, [])))();
-  let intTobool = () => (intTobool = dart.constFn(dart.definiteFunctionType(core.bool, [core.int])))();
-  dart.defineLazy(path$, {
+  src__characters.PLUS = 43;
+  src__characters.MINUS = 45;
+  src__characters.PERIOD = 46;
+  src__characters.SLASH = 47;
+  src__characters.ZERO = 48;
+  src__characters.NINE = 57;
+  src__characters.COLON = 58;
+  src__characters.UPPER_A = 65;
+  src__characters.UPPER_Z = 90;
+  src__characters.LOWER_A = 97;
+  src__characters.LOWER_Z = 122;
+  src__characters.BACKSLASH = 92;
+  let const$;
+  src__style.Style = class Style extends core.Object {
+    static _getPlatformStyle() {
+      if (core.Uri.base.scheme != 'file') return src__style.Style.url;
+      if (!dart.test(core.Uri.base.path[dartx.endsWith]('/'))) return src__style.Style.url;
+      if (core.Uri.new({path: 'a/b'}).toFilePath() == 'a\\b') return src__style.Style.windows;
+      return src__style.Style.posix;
+    }
+    get context() {
+      return src__context.Context.new({style: this});
+    }
+    toString() {
+      return this.name;
+    }
+  };
+  dart.setSignature(src__style.Style, {
+    statics: () => ({_getPlatformStyle: dart.definiteFunctionType(src__style.Style, [])}),
+    names: ['_getPlatformStyle']
+  });
+  dart.defineLazy(src__style.Style, {
     get posix() {
-      return src__context.Context.new({style: src__style.Style.posix});
-    }
-  });
-  dart.defineLazy(path$, {
+      return new src__style__posix.PosixStyle();
+    },
     get windows() {
-      return src__context.Context.new({style: src__style.Style.windows});
-    }
-  });
-  dart.defineLazy(path$, {
+      return new src__style__windows.WindowsStyle();
+    },
     get url() {
-      return src__context.Context.new({style: src__style.Style.url});
-    }
-  });
-  dart.defineLazy(path$, {
-    get context() {
-      return src__context.createInternal();
-    }
-  });
-  dart.copyProperties(path$, {
-    get style() {
-      return path$.context.style;
-    }
-  });
-  dart.copyProperties(path$, {
-    get current() {
-      let uri = core.Uri.base;
-      if (dart.equals(uri, path$._currentUriBase)) return path$._current;
-      path$._currentUriBase = uri;
-      if (dart.equals(src__style.Style.platform, src__style.Style.url)) {
-        path$._current = dart.toString(uri.resolve('.'));
-        return path$._current;
+      return new src__style__url.UrlStyle();
+    },
+    get platform() {
+      return src__style.Style._getPlatformStyle();
+    }
+  });
+  src__internal_style.InternalStyle = class InternalStyle extends src__style.Style {
+    getRoot(path) {
+      let length = this.rootLength(path);
+      if (dart.notNull(length) > 0) return path[dartx.substring](0, length);
+      return dart.test(this.isRootRelative(path)) ? path[dartx.get](0) : null;
+    }
+    relativePathToUri(path) {
+      let segments = this.context.split(path);
+      if (dart.test(this.isSeparator(path[dartx.codeUnitAt](dart.notNull(path[dartx.length]) - 1)))) segments[dartx.add]('');
+      return core.Uri.new({pathSegments: segments});
+    }
+  };
+  dart.setSignature(src__internal_style.InternalStyle, {
+    methods: () => ({
+      getRoot: dart.definiteFunctionType(core.String, [core.String]),
+      relativePathToUri: dart.definiteFunctionType(core.Uri, [core.String])
+    })
+  });
+  src__style__windows.WindowsStyle = class WindowsStyle extends src__internal_style.InternalStyle {
+    new() {
+      this.separatorPattern = core.RegExp.new('[/\\\\]');
+      this.needsSeparatorPattern = core.RegExp.new('[^/\\\\]$');
+      this.rootPattern = core.RegExp.new('^(\\\\\\\\[^\\\\]+\\\\[^\\\\/]+|[a-zA-Z]:[/\\\\])');
+      this.relativeRootPattern = core.RegExp.new("^[/\\\\](?![/\\\\])");
+      this.name = 'windows';
+      this.separator = '\\';
+      this.separators = const$ || (const$ = dart.constList(['/', '\\'], core.String));
+    }
+    containsSeparator(path) {
+      return path[dartx.contains]('/');
+    }
+    isSeparator(codeUnit) {
+      return codeUnit == src__characters.SLASH || codeUnit == src__characters.BACKSLASH;
+    }
+    needsSeparator(path) {
+      if (dart.test(path[dartx.isEmpty])) return false;
+      return !dart.test(this.isSeparator(path[dartx.codeUnitAt](dart.notNull(path[dartx.length]) - 1)));
+    }
+    rootLength(path) {
+      if (dart.test(path[dartx.isEmpty])) return 0;
+      if (path[dartx.codeUnitAt](0) == src__characters.SLASH) return 1;
+      if (path[dartx.codeUnitAt](0) == src__characters.BACKSLASH) {
+        if (dart.notNull(path[dartx.length]) < 2 || path[dartx.codeUnitAt](1) != src__characters.BACKSLASH) return 1;
+        let index = path[dartx.indexOf]('\\', 2);
+        if (dart.notNull(index) > 0) {
+          index = path[dartx.indexOf]('\\', dart.notNull(index) + 1);
+          if (dart.notNull(index) > 0) return index;
+        }
+        return path[dartx.length];
+      }
+      if (dart.notNull(path[dartx.length]) < 3) return 0;
+      if (!dart.test(src__utils.isAlphabetic(path[dartx.codeUnitAt](0)))) return 0;
+      if (path[dartx.codeUnitAt](1) != src__characters.COLON) return 0;
+      if (!dart.test(this.isSeparator(path[dartx.codeUnitAt](2)))) return 0;
+      return 3;
+    }
+    isRootRelative(path) {
+      return this.rootLength(path) == 1;
+    }
+    getRelativeRoot(path) {
+      let length = this.rootLength(path);
+      if (length == 1) return path[dartx.get](0);
+      return null;
+    }
+    pathFromUri(uri) {
+      if (uri.scheme != '' && uri.scheme != 'file') {
+        dart.throw(new core.ArgumentError(dart.str`Uri ${uri} must have scheme 'file:'.`));
+      }
+      let path = uri.path;
+      if (uri.host == '') {
+        if (dart.test(path[dartx.startsWith]('/'))) path = path[dartx.replaceFirst]("/", "");
       } else {
-        let path = uri.toFilePath();
-        let lastIndex = dart.notNull(path[dartx.length]) - 1;
-        dart.assert(path[dartx.get](lastIndex) == '/' || path[dartx.get](lastIndex) == '\\');
-        path$._current = path[dartx.substring](0, lastIndex);
-        return path$._current;
-      }
-    }
-  });
-  path$._currentUriBase = null;
-  path$._current = null;
-  dart.copyProperties(path$, {
-    get separator() {
-      return path$.context.separator;
-    }
-  });
-  path$.absolute = function(part1, part2, part3, part4, part5, part6, part7) {
-    if (part2 === void 0) part2 = null;
-    if (part3 === void 0) part3 = null;
-    if (part4 === void 0) part4 = null;
-    if (part5 === void 0) part5 = null;
-    if (part6 === void 0) part6 = null;
-    if (part7 === void 0) part7 = null;
-    return path$.context.absolute(part1, part2, part3, part4, part5, part6, part7);
-  };
-  dart.fn(path$.absolute, String__ToString());
-  path$.basename = function(path) {
-    return path$.context.basename(path);
-  };
-  dart.fn(path$.basename, StringToString());
-  path$.basenameWithoutExtension = function(path) {
-    return path$.context.basenameWithoutExtension(path);
-  };
-  dart.fn(path$.basenameWithoutExtension, StringToString());
-  path$.dirname = function(path) {
-    return path$.context.dirname(path);
-  };
-  dart.fn(path$.dirname, StringToString());
-  path$.extension = function(path) {
-    return path$.context.extension(path);
-  };
-  dart.fn(path$.extension, StringToString());
-  path$.rootPrefix = function(path) {
-    return path$.context.rootPrefix(path);
-  };
-  dart.fn(path$.rootPrefix, StringToString());
-  path$.isAbsolute = function(path) {
-    return path$.context.isAbsolute(path);
-  };
-  dart.fn(path$.isAbsolute, StringTobool());
-  path$.isRelative = function(path) {
-    return path$.context.isRelative(path);
-  };
-  dart.fn(path$.isRelative, StringTobool());
-  path$.isRootRelative = function(path) {
-    return path$.context.isRootRelative(path);
-  };
-  dart.fn(path$.isRootRelative, StringTobool());
-  path$.join = function(part1, part2, part3, part4, part5, part6, part7, part8) {
-    if (part2 === void 0) part2 = null;
-    if (part3 === void 0) part3 = null;
-    if (part4 === void 0) part4 = null;
-    if (part5 === void 0) part5 = null;
-    if (part6 === void 0) part6 = null;
-    if (part7 === void 0) part7 = null;
-    if (part8 === void 0) part8 = null;
-    return path$.context.join(part1, part2, part3, part4, part5, part6, part7, part8);
-  };
-  dart.fn(path$.join, String__ToString$());
-  path$.joinAll = function(parts) {
-    return path$.context.joinAll(parts);
-  };
-  dart.fn(path$.joinAll, IterableOfStringToString());
-  path$.split = function(path) {
-    return path$.context.split(path);
-  };
-  dart.fn(path$.split, StringToListOfString());
-  path$.normalize = function(path) {
-    return path$.context.normalize(path);
-  };
-  dart.fn(path$.normalize, StringToString());
-  path$.relative = function(path, opts) {
-    let from = opts && 'from' in opts ? opts.from : null;
-    return path$.context.relative(path, {from: from});
-  };
-  dart.fn(path$.relative, String__ToString$0());
-  path$.isWithin = function(parent, child) {
-    return path$.context.isWithin(parent, child);
-  };
-  dart.fn(path$.isWithin, StringAndStringTobool());
-  path$.withoutExtension = function(path) {
-    return path$.context.withoutExtension(path);
-  };
-  dart.fn(path$.withoutExtension, StringToString());
-  path$.fromUri = function(uri) {
-    return path$.context.fromUri(uri);
-  };
-  dart.fn(path$.fromUri, dynamicToString());
-  path$.toUri = function(path) {
-    return path$.context.toUri(path);
-  };
-  dart.fn(path$.toUri, StringToUri());
-  path$.prettyUri = function(uri) {
-    return path$.context.prettyUri(uri);
-  };
-  dart.fn(path$.prettyUri, dynamicToString());
+        path = dart.str`\\\\${uri.host}${path}`;
+      }
+      return core.Uri.decodeComponent(path[dartx.replaceAll]("/", "\\"));
+    }
+    absolutePathToUri(path) {
+      let parsed = src__parsed_path.ParsedPath.parse(path, this);
+      if (dart.test(parsed.root[dartx.startsWith]('\\\\'))) {
+        let rootParts = parsed.root[dartx.split]('\\')[dartx.where](dart.fn(part => part != '', StringTobool()));
+        parsed.parts[dartx.insert](0, rootParts[dartx.last]);
+        if (dart.test(parsed.hasTrailingSeparator)) {
+          parsed.parts[dartx.add]("");
+        }
+        return core.Uri.new({scheme: 'file', host: rootParts[dartx.first], pathSegments: parsed.parts});
+      } else {
+        if (parsed.parts[dartx.length] == 0 || dart.test(parsed.hasTrailingSeparator)) {
+          parsed.parts[dartx.add]("");
+        }
+        parsed.parts[dartx.insert](0, parsed.root[dartx.replaceAll]("/", "")[dartx.replaceAll]("\\", ""));
+        return core.Uri.new({scheme: 'file', pathSegments: parsed.parts});
+      }
+    }
+  };
+  dart.setSignature(src__style__windows.WindowsStyle, {
+    constructors: () => ({new: dart.definiteFunctionType(src__style__windows.WindowsStyle, [])}),
+    methods: () => ({
+      containsSeparator: dart.definiteFunctionType(core.bool, [core.String]),
+      isSeparator: dart.definiteFunctionType(core.bool, [core.int]),
+      needsSeparator: dart.definiteFunctionType(core.bool, [core.String]),
+      rootLength: dart.definiteFunctionType(core.int, [core.String]),
+      isRootRelative: dart.definiteFunctionType(core.bool, [core.String]),
+      getRelativeRoot: dart.definiteFunctionType(core.String, [core.String]),
+      pathFromUri: dart.definiteFunctionType(core.String, [core.Uri]),
+      absolutePathToUri: dart.definiteFunctionType(core.Uri, [core.String])
+    })
+  });
+  let const$0;
+  src__style__posix.PosixStyle = class PosixStyle extends src__internal_style.InternalStyle {
+    new() {
+      this.separatorPattern = core.RegExp.new('/');
+      this.needsSeparatorPattern = core.RegExp.new('[^/]$');
+      this.rootPattern = core.RegExp.new('^/');
+      this.name = 'posix';
+      this.separator = '/';
+      this.separators = const$0 || (const$0 = dart.constList(['/'], core.String));
+      this.relativeRootPattern = null;
+    }
+    containsSeparator(path) {
+      return path[dartx.contains]('/');
+    }
+    isSeparator(codeUnit) {
+      return codeUnit == src__characters.SLASH;
+    }
+    needsSeparator(path) {
+      return dart.test(path[dartx.isNotEmpty]) && !dart.test(this.isSeparator(path[dartx.codeUnitAt](dart.notNull(path[dartx.length]) - 1)));
+    }
+    rootLength(path) {
+      if (dart.test(path[dartx.isNotEmpty]) && dart.test(this.isSeparator(path[dartx.codeUnitAt](0)))) return 1;
+      return 0;
+    }
+    isRootRelative(path) {
+      return false;
+    }
+    getRelativeRoot(path) {
+      return null;
+    }
+    pathFromUri(uri) {
+      if (uri.scheme == '' || uri.scheme == 'file') {
+        return core.Uri.decodeComponent(uri.path);
+      }
+      dart.throw(new core.ArgumentError(dart.str`Uri ${uri} must have scheme 'file:'.`));
+    }
+    absolutePathToUri(path) {
+      let parsed = src__parsed_path.ParsedPath.parse(path, this);
+      if (dart.test(parsed.parts[dartx.isEmpty])) {
+        parsed.parts[dartx.addAll](JSArrayOfString().of(["", ""]));
+      } else if (dart.test(parsed.hasTrailingSeparator)) {
+        parsed.parts[dartx.add]("");
+      }
+      return core.Uri.new({scheme: 'file', pathSegments: parsed.parts});
+    }
+  };
+  dart.setSignature(src__style__posix.PosixStyle, {
+    constructors: () => ({new: dart.definiteFunctionType(src__style__posix.PosixStyle, [])}),
+    methods: () => ({
+      containsSeparator: dart.definiteFunctionType(core.bool, [core.String]),
+      isSeparator: dart.definiteFunctionType(core.bool, [core.int]),
+      needsSeparator: dart.definiteFunctionType(core.bool, [core.String]),
+      rootLength: dart.definiteFunctionType(core.int, [core.String]),
+      isRootRelative: dart.definiteFunctionType(core.bool, [core.String]),
+      getRelativeRoot: dart.definiteFunctionType(core.String, [core.String]),
+      pathFromUri: dart.definiteFunctionType(core.String, [core.Uri]),
+      absolutePathToUri: dart.definiteFunctionType(core.Uri, [core.String])
+    })
+  });
+  let const$1;
+  src__style__url.UrlStyle = class UrlStyle extends src__internal_style.InternalStyle {
+    new() {
+      this.separatorPattern = core.RegExp.new('/');
+      this.needsSeparatorPattern = core.RegExp.new("(^[a-zA-Z][-+.a-zA-Z\\d]*://|[^/])$");
+      this.rootPattern = core.RegExp.new("[a-zA-Z][-+.a-zA-Z\\d]*://[^/]*");
+      this.relativeRootPattern = core.RegExp.new("^/");
+      this.name = 'url';
+      this.separator = '/';
+      this.separators = const$1 || (const$1 = dart.constList(['/'], core.String));
+    }
+    containsSeparator(path) {
+      return path[dartx.contains]('/');
+    }
+    isSeparator(codeUnit) {
+      return codeUnit == src__characters.SLASH;
+    }
+    needsSeparator(path) {
+      if (dart.test(path[dartx.isEmpty])) return false;
+      if (!dart.test(this.isSeparator(path[dartx.codeUnitAt](dart.notNull(path[dartx.length]) - 1)))) return true;
+      return dart.test(path[dartx.endsWith]("://")) && this.rootLength(path) == path[dartx.length];
+    }
+    rootLength(path) {
+      if (dart.test(path[dartx.isEmpty])) return 0;
+      if (dart.test(this.isSeparator(path[dartx.codeUnitAt](0)))) return 1;
+      let index = path[dartx.indexOf]("/");
+      if (dart.notNull(index) > 0 && dart.test(path[dartx.startsWith]('://', dart.notNull(index) - 1))) {
+        index = path[dartx.indexOf]('/', dart.notNull(index) + 2);
+        if (dart.notNull(index) > 0) return index;
+        return path[dartx.length];
+      }
+      return 0;
+    }
+    isRootRelative(path) {
+      return dart.test(path[dartx.isNotEmpty]) && dart.test(this.isSeparator(path[dartx.codeUnitAt](0)));
+    }
+    getRelativeRoot(path) {
+      return dart.test(this.isRootRelative(path)) ? '/' : null;
+    }
+    pathFromUri(uri) {
+      return dart.toString(uri);
+    }
+    relativePathToUri(path) {
+      return core.Uri.parse(path);
+    }
+    absolutePathToUri(path) {
+      return core.Uri.parse(path);
+    }
+  };
+  dart.setSignature(src__style__url.UrlStyle, {
+    constructors: () => ({new: dart.definiteFunctionType(src__style__url.UrlStyle, [])}),
+    methods: () => ({
+      containsSeparator: dart.definiteFunctionType(core.bool, [core.String]),
+      isSeparator: dart.definiteFunctionType(core.bool, [core.int]),
+      needsSeparator: dart.definiteFunctionType(core.bool, [core.String]),
+      rootLength: dart.definiteFunctionType(core.int, [core.String]),
+      isRootRelative: dart.definiteFunctionType(core.bool, [core.String]),
+      getRelativeRoot: dart.definiteFunctionType(core.String, [core.String]),
+      pathFromUri: dart.definiteFunctionType(core.String, [core.Uri]),
+      absolutePathToUri: dart.definiteFunctionType(core.Uri, [core.String])
+    })
+  });
+  src__path_exception.PathException = class PathException extends core.Object {
+    new(message) {
+      this.message = message;
+    }
+    toString() {
+      return dart.str`PathException: ${this.message}`;
+    }
+  };
+  src__path_exception.PathException[dart.implements] = () => [core.Exception];
+  dart.setSignature(src__path_exception.PathException, {
+    constructors: () => ({new: dart.definiteFunctionType(src__path_exception.PathException, [core.String])})
+  });
+  src__utils.isAlphabetic = function(char) {
+    return dart.notNull(char) >= src__characters.UPPER_A && dart.notNull(char) <= src__characters.UPPER_Z || dart.notNull(char) >= src__characters.LOWER_A && dart.notNull(char) <= src__characters.LOWER_Z;
+  };
+  dart.fn(src__utils.isAlphabetic, intTobool());
+  src__utils.isNumeric = function(char) {
+    return dart.notNull(char) >= src__characters.ZERO && dart.notNull(char) <= src__characters.NINE;
+  };
+  dart.fn(src__utils.isNumeric, intTobool());
+  const _splitExtension = Symbol('_splitExtension');
+  src__parsed_path.ParsedPath = class ParsedPath extends core.Object {
+    get extension() {
+      return this[_splitExtension]()[dartx.get](1);
+    }
+    get isAbsolute() {
+      return this.root != null;
+    }
+    static parse(path, style) {
+      let root = style.getRoot(path);
+      let isRootRelative = style.isRootRelative(path);
+      if (root != null) path = path[dartx.substring](root[dartx.length]);
+      let parts = JSArrayOfString().of([]);
+      let separators = JSArrayOfString().of([]);
+      let start = 0;
+      if (dart.test(path[dartx.isNotEmpty]) && dart.test(style.isSeparator(path[dartx.codeUnitAt](0)))) {
+        separators[dartx.add](path[dartx.get](0));
+        start = 1;
+      } else {
+        separators[dartx.add]('');
+      }
+      for (let i = start; i < dart.notNull(path[dartx.length]); i++) {
+        if (dart.test(style.isSeparator(path[dartx.codeUnitAt](i)))) {
+          parts[dartx.add](path[dartx.substring](start, i));
+          separators[dartx.add](path[dartx.get](i));
+          start = i + 1;
+        }
+      }
+      if (start < dart.notNull(path[dartx.length])) {
+        parts[dartx.add](path[dartx.substring](start));
+        separators[dartx.add]('');
+      }
+      return new src__parsed_path.ParsedPath._(style, root, isRootRelative, parts, separators);
+    }
+    _(style, root, isRootRelative, parts, separators) {
+      this.style = style;
+      this.root = root;
+      this.isRootRelative = isRootRelative;
+      this.parts = parts;
+      this.separators = separators;
+    }
+    get basename() {
+      let copy = this.clone();
+      copy.removeTrailingSeparators();
+      if (dart.test(copy.parts[dartx.isEmpty])) return this.root == null ? '' : this.root;
+      return copy.parts[dartx.last];
+    }
+    get basenameWithoutExtension() {
+      return this[_splitExtension]()[dartx.get](0);
+    }
+    get hasTrailingSeparator() {
+      return !dart.test(this.parts[dartx.isEmpty]) && (this.parts[dartx.last] == '' || this.separators[dartx.last] != '');
+    }
+    removeTrailingSeparators() {
+      while (!dart.test(this.parts[dartx.isEmpty]) && this.parts[dartx.last] == '') {
+        this.parts[dartx.removeLast]();
+        this.separators[dartx.removeLast]();
+      }
+      if (dart.notNull(this.separators[dartx.length]) > 0) this.separators[dartx.set](dart.notNull(this.separators[dartx.length]) - 1, '');
+    }
+    normalize() {
+      let leadingDoubles = 0;
+      let newParts = JSArrayOfString().of([]);
+      for (let part of this.parts) {
+        if (part == '.' || part == '') {
+        } else if (part == '..') {
+          if (dart.notNull(newParts[dartx.length]) > 0) {
+            newParts[dartx.removeLast]();
+          } else {
+            leadingDoubles++;
+          }
+        } else {
+          newParts[dartx.add](part);
+        }
+      }
+      if (!dart.test(this.isAbsolute)) {
+        newParts[dartx.insertAll](0, ListOfString().filled(leadingDoubles, '..'));
+      }
+      if (newParts[dartx.length] == 0 && !dart.test(this.isAbsolute)) {
+        newParts[dartx.add]('.');
+      }
+      let newSeparators = ListOfString().generate(newParts[dartx.length], dart.fn(_ => this.style.separator, intToString()), {growable: true});
+      newSeparators[dartx.insert](0, dart.test(this.isAbsolute) && dart.notNull(newParts[dartx.length]) > 0 && dart.test(this.style.needsSeparator(this.root)) ? this.style.separator : '');
+      this.parts = newParts;
+      this.separators = newSeparators;
+      if (this.root != null && dart.equals(this.style, src__style.Style.windows)) {
+        this.root = this.root[dartx.replaceAll]('/', '\\');
+      }
+      this.removeTrailingSeparators();
+    }
+    toString() {
+      let builder = new core.StringBuffer();
+      if (this.root != null) builder.write(this.root);
+      for (let i = 0; i < dart.notNull(this.parts[dartx.length]); i++) {
+        builder.write(this.separators[dartx.get](i));
+        builder.write(this.parts[dartx.get](i));
+      }
+      builder.write(this.separators[dartx.last]);
+      return builder.toString();
+    }
+    [_splitExtension]() {
+      let file = this.parts[dartx.lastWhere](dart.fn(p => p != '', StringTobool()), {orElse: dart.fn(() => null, VoidToString())});
+      if (file == null) return JSArrayOfString().of(['', '']);
+      if (file == '..') return JSArrayOfString().of(['..', '']);
+      let lastDot = file[dartx.lastIndexOf]('.');
+      if (dart.notNull(lastDot) <= 0) return JSArrayOfString().of([file, '']);
+      return JSArrayOfString().of([file[dartx.substring](0, lastDot), file[dartx.substring](lastDot)]);
+    }
+    clone() {
+      return new src__parsed_path.ParsedPath._(this.style, this.root, this.isRootRelative, ListOfString().from(this.parts), ListOfString().from(this.separators));
+    }
+  };
+  dart.defineNamedConstructor(src__parsed_path.ParsedPath, '_');
+  dart.setSignature(src__parsed_path.ParsedPath, {
+    constructors: () => ({
+      parse: dart.definiteFunctionType(src__parsed_path.ParsedPath, [core.String, src__internal_style.InternalStyle]),
+      _: dart.definiteFunctionType(src__parsed_path.ParsedPath, [src__internal_style.InternalStyle, core.String, core.bool, core.List$(core.String), core.List$(core.String)])
+    }),
+    methods: () => ({
+      removeTrailingSeparators: dart.definiteFunctionType(dart.void, []),
+      normalize: dart.definiteFunctionType(dart.void, []),
+      [_splitExtension]: dart.definiteFunctionType(core.List$(core.String), []),
+      clone: dart.definiteFunctionType(src__parsed_path.ParsedPath, [])
+    })
+  });
+  src__context.createInternal = function() {
+    return new src__context.Context._internal();
+  };
+  dart.lazyFn(src__context.createInternal, () => VoidToContext());
   const _current = Symbol('_current');
   const _parse = Symbol('_parse');
   const _needsNormalization = Symbol('_needsNormalization');
   const _isWithinFast = Symbol('_isWithinFast');
   const _pathDirection = Symbol('_pathDirection');
   src__context.Context = class Context extends core.Object {
     static new(opts) {
       let style = opts && 'style' in opts ? opts.style : null;
       let current = opts && 'current' in opts ? opts.current : null;
       if (current == null) {
@@ skipping 418 matching lines @@
       isWithin: dart.definiteFunctionType(core.bool, [core.String, core.String]),
       [_isWithinFast]: dart.definiteFunctionType(core.bool, [core.String, core.String]),
       [_pathDirection]: dart.definiteFunctionType(src__context._PathDirection, [core.List$(core.int), core.int]),
       withoutExtension: dart.definiteFunctionType(core.String, [core.String]),
       fromUri: dart.definiteFunctionType(core.String, [dart.dynamic]),
       toUri: dart.definiteFunctionType(core.Uri, [core.String]),
       prettyUri: dart.definiteFunctionType(core.String, [dart.dynamic]),
       [_parse]: dart.definiteFunctionType(src__parsed_path.ParsedPath, [core.String])
     })
   });
-  path$.Context = src__context.Context;
-  src__path_exception.PathException = class PathException extends core.Object {
-    new(message) {
-      this.message = message;
-    }
-    toString() {
-      return dart.str`PathException: ${this.message}`;
-    }
-  };
-  src__path_exception.PathException[dart.implements] = () => [core.Exception];
-  dart.setSignature(src__path_exception.PathException, {
-    constructors: () => ({new: dart.definiteFunctionType(src__path_exception.PathException, [core.String])})
-  });
-  path$.PathException = src__path_exception.PathException;
-  src__style.Style = class Style extends core.Object {
-    static _getPlatformStyle() {
-      if (core.Uri.base.scheme != 'file') return src__style.Style.url;
-      if (!dart.test(core.Uri.base.path[dartx.endsWith]('/'))) return src__style.Style.url;
-      if (core.Uri.new({path: 'a/b'}).toFilePath() == 'a\\b') return src__style.Style.windows;
-      return src__style.Style.posix;
-    }
-    get context() {
-      return src__context.Context.new({style: this});
-    }
-    toString() {
-      return this.name;
-    }
-  };
-  dart.setSignature(src__style.Style, {
-    statics: () => ({_getPlatformStyle: dart.definiteFunctionType(src__style.Style, [])}),
-    names: ['_getPlatformStyle']
-  });
-  dart.defineLazy(src__style.Style, {
-    get posix() {
-      return new src__style__posix.PosixStyle();
-    },
-    get windows() {
-      return new src__style__windows.WindowsStyle();
-    },
-    get url() {
-      return new src__style__url.UrlStyle();
-    },
-    get platform() {
-      return src__style.Style._getPlatformStyle();
-    }
-  });
-  path$.Style = src__style.Style;
-  src__characters.PLUS = 43;
-  src__characters.MINUS = 45;
-  src__characters.PERIOD = 46;
-  src__characters.SLASH = 47;
-  src__characters.ZERO = 48;
-  src__characters.NINE = 57;
-  src__characters.COLON = 58;
-  src__characters.UPPER_A = 65;
-  src__characters.UPPER_Z = 90;
-  src__characters.LOWER_A = 97;
-  src__characters.LOWER_Z = 122;
-  src__characters.BACKSLASH = 92;
-  src__context.createInternal = function() {
-    return new src__context.Context._internal();
-  };
-  dart.fn(src__context.createInternal, VoidToContext());
   src__context._validateArgList = function(method, args) {
     for (let i = 1; i < dart.notNull(args[dartx.length]); i++) {
       if (args[dartx.get](i) == null || args[dartx.get](i - 1) != null) continue;
       let numArgs = null;
       for (numArgs = args[dartx.length]; dart.test(dart.dsend(numArgs, '>=', 1)); numArgs = dart.dsend(numArgs, '-', 1)) {
         if (args[dartx.get](core.int._check(dart.dsend(numArgs, '-', 1))) != null) break;
       }
       let message = new core.StringBuffer();
       message.write(dart.str`${method}(`);
       message.write(args[dartx.take](core.int._check(numArgs))[dartx.map](core.String)(dart.fn(arg => arg == null ? "null" : dart.str`"${arg}"`, StringToString()))[dartx.join](", "));
@@ skipping 20 matching lines @@
     get atRoot() {
       return dart.const(new src__context._PathDirection("at root"));
     },
     get reachesRoot() {
       return dart.const(new src__context._PathDirection("reaches root"));
     },
     get belowRoot() {
       return dart.const(new src__context._PathDirection("below root"));
     }
   });
-  src__internal_style.InternalStyle = class InternalStyle extends src__style.Style {
-    getRoot(path) {
-      let length = this.rootLength(path);
-      if (dart.notNull(length) > 0) return path[dartx.substring](0, length);
-      return dart.test(this.isRootRelative(path)) ? path[dartx.get](0) : null;
-    }
-    relativePathToUri(path) {
-      let segments = this.context.split(path);
-      if (dart.test(this.isSeparator(path[dartx.codeUnitAt](dart.notNull(path[dartx.length]) - 1)))) segments[dartx.add]('');
-      return core.Uri.new({pathSegments: segments});
-    }
-  };
-  dart.setSignature(src__internal_style.InternalStyle, {
-    methods: () => ({
-      getRoot: dart.definiteFunctionType(core.String, [core.String]),
-      relativePathToUri: dart.definiteFunctionType(core.Uri, [core.String])
-    })
-  });
-  const _splitExtension = Symbol('_splitExtension');
-  src__parsed_path.ParsedPath = class ParsedPath extends core.Object {
-    get extension() {
-      return this[_splitExtension]()[dartx.get](1);
-    }
-    get isAbsolute() {
-      return this.root != null;
-    }
-    static parse(path, style) {
-      let root = style.getRoot(path);
-      let isRootRelative = style.isRootRelative(path);
-      if (root != null) path = path[dartx.substring](root[dartx.length]);
-      let parts = JSArrayOfString().of([]);
-      let separators = JSArrayOfString().of([]);
-      let start = 0;
-      if (dart.test(path[dartx.isNotEmpty]) && dart.test(style.isSeparator(path[dartx.codeUnitAt](0)))) {
-        separators[dartx.add](path[dartx.get](0));
-        start = 1;
+  dart.defineLazy(path$, {
+    get posix() {
+      return src__context.Context.new({style: src__style.Style.posix});
+    }
+  });
+  dart.defineLazy(path$, {
+    get windows() {
+      return src__context.Context.new({style: src__style.Style.windows});
+    }
+  });
+  dart.defineLazy(path$, {
+    get url() {
+      return src__context.Context.new({style: src__style.Style.url});
+    }
+  });
+  dart.defineLazy(path$, {
+    get context() {
+      return src__context.createInternal();
+    }
+  });
+  dart.copyProperties(path$, {
+    get style() {
+      return path$.context.style;
+    }
+  });
+  dart.copyProperties(path$, {
+    get current() {
+      let uri = core.Uri.base;
+      if (dart.equals(uri, path$._currentUriBase)) return path$._current;
+      path$._currentUriBase = uri;
+      if (dart.equals(src__style.Style.platform, src__style.Style.url)) {
+        path$._current = dart.toString(uri.resolve('.'));
+        return path$._current;
       } else {
-        separators[dartx.add]('');
-      }
-      for (let i = start; i < dart.notNull(path[dartx.length]); i++) {
-        if (dart.test(style.isSeparator(path[dartx.codeUnitAt](i)))) {
-          parts[dartx.add](path[dartx.substring](start, i));
-          separators[dartx.add](path[dartx.get](i));
-          start = i + 1;
-        }
-      }
-      if (start < dart.notNull(path[dartx.length])) {
-        parts[dartx.add](path[dartx.substring](start));
-        separators[dartx.add]('');
-      }
-      return new src__parsed_path.ParsedPath._(style, root, isRootRelative, parts, separators);
-    }
-    _(style, root, isRootRelative, parts, separators) {
-      this.style = style;
-      this.root = root;
-      this.isRootRelative = isRootRelative;
-      this.parts = parts;
-      this.separators = separators;
-    }
-    get basename() {
-      let copy = this.clone();
-      copy.removeTrailingSeparators();
-      if (dart.test(copy.parts[dartx.isEmpty])) return this.root == null ? '' : this.root;
-      return copy.parts[dartx.last];
-    }
-    get basenameWithoutExtension() {
-      return this[_splitExtension]()[dartx.get](0);
-    }
-    get hasTrailingSeparator() {
-      return !dart.test(this.parts[dartx.isEmpty]) && (this.parts[dartx.last] == '' || this.separators[dartx.last] != '');
-    }
-    removeTrailingSeparators() {
-      while (!dart.test(this.parts[dartx.isEmpty]) && this.parts[dartx.last] == '') {
-        this.parts[dartx.removeLast]();
-        this.separators[dartx.removeLast]();
-      }
-      if (dart.notNull(this.separators[dartx.length]) > 0) this.separators[dartx.set](dart.notNull(this.separators[dartx.length]) - 1, '');
-    }
-    normalize() {
-      let leadingDoubles = 0;
-      let newParts = JSArrayOfString().of([]);
-      for (let part of this.parts) {
-        if (part == '.' || part == '') {
-        } else if (part == '..') {
-          if (dart.notNull(newParts[dartx.length]) > 0) {
-            newParts[dartx.removeLast]();
-          } else {
-            leadingDoubles++;
-          }
-        } else {
-          newParts[dartx.add](part);
-        }
-      }
-      if (!dart.test(this.isAbsolute)) {
-        newParts[dartx.insertAll](0, ListOfString().filled(leadingDoubles, '..'));
-      }
-      if (newParts[dartx.length] == 0 && !dart.test(this.isAbsolute)) {
-        newParts[dartx.add]('.');
-      }
-      let newSeparators = ListOfString().generate(newParts[dartx.length], dart.fn(_ => this.style.separator, intToString()), {growable: true});
-      newSeparators[dartx.insert](0, dart.test(this.isAbsolute) && dart.notNull(newParts[dartx.length]) > 0 && dart.test(this.style.needsSeparator(this.root)) ? this.style.separator : '');
-      this.parts = newParts;
-      this.separators = newSeparators;
-      if (this.root != null && dart.equals(this.style, src__style.Style.windows)) {
-        this.root = this.root[dartx.replaceAll]('/', '\\');
-      }
-      this.removeTrailingSeparators();
-    }
-    toString() {
-      let builder = new core.StringBuffer();
-      if (this.root != null) builder.write(this.root);
-      for (let i = 0; i < dart.notNull(this.parts[dartx.length]); i++) {
-        builder.write(this.separators[dartx.get](i));
-        builder.write(this.parts[dartx.get](i));
-      }
-      builder.write(this.separators[dartx.last]);
-      return builder.toString();
-    }
-    [_splitExtension]() {
-      let file = this.parts[dartx.lastWhere](dart.fn(p => p != '', StringTobool()), {orElse: dart.fn(() => null, VoidToString())});
-      if (file == null) return JSArrayOfString().of(['', '']);
-      if (file == '..') return JSArrayOfString().of(['..', '']);
-      let lastDot = file[dartx.lastIndexOf]('.');
-      if (dart.notNull(lastDot) <= 0) return JSArrayOfString().of([file, '']);
-      return JSArrayOfString().of([file[dartx.substring](0, lastDot), file[dartx.substring](lastDot)]);
-    }
-    clone() {
-      return new src__parsed_path.ParsedPath._(this.style, this.root, this.isRootRelative, ListOfString().from(this.parts), ListOfString().from(this.separators));
-    }
-  };
-  dart.defineNamedConstructor(src__parsed_path.ParsedPath, '_');
-  dart.setSignature(src__parsed_path.ParsedPath, {
-    constructors: () => ({
-      parse: dart.definiteFunctionType(src__parsed_path.ParsedPath, [core.String, src__internal_style.InternalStyle]),
-      _: dart.definiteFunctionType(src__parsed_path.ParsedPath, [src__internal_style.InternalStyle, core.String, core.bool, core.List$(core.String), core.List$(core.String)])
-    }),
-    methods: () => ({
-      removeTrailingSeparators: dart.definiteFunctionType(dart.void, []),
-      normalize: dart.definiteFunctionType(dart.void, []),
-      [_splitExtension]: dart.definiteFunctionType(core.List$(core.String), []),
-      clone: dart.definiteFunctionType(src__parsed_path.ParsedPath, [])
-    })
-  });
-  let const$;
-  src__style__posix.PosixStyle = class PosixStyle extends src__internal_style.InternalStyle {
-    new() {
-      this.separatorPattern = core.RegExp.new('/');
-      this.needsSeparatorPattern = core.RegExp.new('[^/]$');
-      this.rootPattern = core.RegExp.new('^/');
-      this.name = 'posix';
-      this.separator = '/';
-      this.separators = const$ || (const$ = dart.constList(['/'], core.String));
-      this.relativeRootPattern = null;
-    }
-    containsSeparator(path) {
-      return path[dartx.contains]('/');
-    }
-    isSeparator(codeUnit) {
-      return codeUnit == src__characters.SLASH;
-    }
-    needsSeparator(path) {
-      return dart.test(path[dartx.isNotEmpty]) && !dart.test(this.isSeparator(path[dartx.codeUnitAt](dart.notNull(path[dartx.length]) - 1)));
-    }
-    rootLength(path) {
-      if (dart.test(path[dartx.isNotEmpty]) && dart.test(this.isSeparator(path[dartx.codeUnitAt](0)))) return 1;
-      return 0;
-    }
-    isRootRelative(path) {
-      return false;
-    }
-    getRelativeRoot(path) {
-      return null;
-    }
-    pathFromUri(uri) {
-      if (uri.scheme == '' || uri.scheme == 'file') {
-        return core.Uri.decodeComponent(uri.path);
-      }
-      dart.throw(new core.ArgumentError(dart.str`Uri ${uri} must have scheme 'file:'.`));
-    }
-    absolutePathToUri(path) {
-      let parsed = src__parsed_path.ParsedPath.parse(path, this);
-      if (dart.test(parsed.parts[dartx.isEmpty])) {
-        parsed.parts[dartx.addAll](JSArrayOfString().of(["", ""]));
-      } else if (dart.test(parsed.hasTrailingSeparator)) {
-        parsed.parts[dartx.add]("");
-      }
-      return core.Uri.new({scheme: 'file', pathSegments: parsed.parts});
-    }
-  };
-  dart.setSignature(src__style__posix.PosixStyle, {
-    constructors: () => ({new: dart.definiteFunctionType(src__style__posix.PosixStyle, [])}),
-    methods: () => ({
-      containsSeparator: dart.definiteFunctionType(core.bool, [core.String]),
-      isSeparator: dart.definiteFunctionType(core.bool, [core.int]),
-      needsSeparator: dart.definiteFunctionType(core.bool, [core.String]),
-      rootLength: dart.definiteFunctionType(core.int, [core.String]),
-      isRootRelative: dart.definiteFunctionType(core.bool, [core.String]),
-      getRelativeRoot: dart.definiteFunctionType(core.String, [core.String]),
-      pathFromUri: dart.definiteFunctionType(core.String, [core.Uri]),
-      absolutePathToUri: dart.definiteFunctionType(core.Uri, [core.String])
-    })
-  });
-  let const$0;
-  src__style__url.UrlStyle = class UrlStyle extends src__internal_style.InternalStyle {
-    new() {
-      this.separatorPattern = core.RegExp.new('/');
-      this.needsSeparatorPattern = core.RegExp.new("(^[a-zA-Z][-+.a-zA-Z\\d]*://|[^/])$");
-      this.rootPattern = core.RegExp.new("[a-zA-Z][-+.a-zA-Z\\d]*://[^/]*");
-      this.relativeRootPattern = core.RegExp.new("^/");
-      this.name = 'url';
-      this.separator = '/';
-      this.separators = const$0 || (const$0 = dart.constList(['/'], core.String));
-    }
-    containsSeparator(path) {
-      return path[dartx.contains]('/');
-    }
-    isSeparator(codeUnit) {
-      return codeUnit == src__characters.SLASH;
-    }
-    needsSeparator(path) {
-      if (dart.test(path[dartx.isEmpty])) return false;
-      if (!dart.test(this.isSeparator(path[dartx.codeUnitAt](dart.notNull(path[dartx.length]) - 1)))) return true;
-      return dart.test(path[dartx.endsWith]("://")) && this.rootLength(path) == path[dartx.length];
-    }
-    rootLength(path) {
-      if (dart.test(path[dartx.isEmpty])) return 0;
-      if (dart.test(this.isSeparator(path[dartx.codeUnitAt](0)))) return 1;
-      let index = path[dartx.indexOf]("/");
-      if (dart.notNull(index) > 0 && dart.test(path[dartx.startsWith]('://', dart.notNull(index) - 1))) {
-        index = path[dartx.indexOf]('/', dart.notNull(index) + 2);
-        if (dart.notNull(index) > 0) return index;
-        return path[dartx.length];
-      }
-      return 0;
-    }
-    isRootRelative(path) {
-      return dart.test(path[dartx.isNotEmpty]) && dart.test(this.isSeparator(path[dartx.codeUnitAt](0)));
-    }
-    getRelativeRoot(path) {
-      return dart.test(this.isRootRelative(path)) ? '/' : null;
-    }
-    pathFromUri(uri) {
-      return dart.toString(uri);
-    }
-    relativePathToUri(path) {
-      return core.Uri.parse(path);
-    }
-    absolutePathToUri(path) {
-      return core.Uri.parse(path);
-    }
-  };
-  dart.setSignature(src__style__url.UrlStyle, {
-    constructors: () => ({new: dart.definiteFunctionType(src__style__url.UrlStyle, [])}),
-    methods: () => ({
-      containsSeparator: dart.definiteFunctionType(core.bool, [core.String]),
-      isSeparator: dart.definiteFunctionType(core.bool, [core.int]),
-      needsSeparator: dart.definiteFunctionType(core.bool, [core.String]),
-      rootLength: dart.definiteFunctionType(core.int, [core.String]),
-      isRootRelative: dart.definiteFunctionType(core.bool, [core.String]),
-      getRelativeRoot: dart.definiteFunctionType(core.String, [core.String]),
-      pathFromUri: dart.definiteFunctionType(core.String, [core.Uri]),
-      absolutePathToUri: dart.definiteFunctionType(core.Uri, [core.String])
-    })
-  });
-  let const$1;
-  src__style__windows.WindowsStyle = class WindowsStyle extends src__internal_style.InternalStyle {
-    new() {
-      this.separatorPattern = core.RegExp.new('[/\\\\]');
-      this.needsSeparatorPattern = core.RegExp.new('[^/\\\\]$');
-      this.rootPattern = core.RegExp.new('^(\\\\\\\\[^\\\\]+\\\\[^\\\\/]+|[a-zA-Z]:[/\\\\])');
-      this.relativeRootPattern = core.RegExp.new("^[/\\\\](?![/\\\\])");
-      this.name = 'windows';
-      this.separator = '\\';
-      this.separators = const$1 || (const$1 = dart.constList(['/', '\\'], core.String));
-    }
-    containsSeparator(path) {
-      return path[dartx.contains]('/');
-    }
-    isSeparator(codeUnit) {
-      return codeUnit == src__characters.SLASH || codeUnit == src__characters.BACKSLASH;
-    }
-    needsSeparator(path) {
-      if (dart.test(path[dartx.isEmpty])) return false;
-      return !dart.test(this.isSeparator(path[dartx.codeUnitAt](dart.notNull(path[dartx.length]) - 1)));
-    }
-    rootLength(path) {
-      if (dart.test(path[dartx.isEmpty])) return 0;
-      if (path[dartx.codeUnitAt](0) == src__characters.SLASH) return 1;
-      if (path[dartx.codeUnitAt](0) == src__characters.BACKSLASH) {
-        if (dart.notNull(path[dartx.length]) < 2 || path[dartx.codeUnitAt](1) != src__characters.BACKSLASH) return 1;
-        let index = path[dartx.indexOf]('\\', 2);
-        if (dart.notNull(index) > 0) {
-          index = path[dartx.indexOf]('\\', dart.notNull(index) + 1);
-          if (dart.notNull(index) > 0) return index;
-        }
-        return path[dartx.length];
-      }
-      if (dart.notNull(path[dartx.length]) < 3) return 0;
-      if (!dart.test(src__utils.isAlphabetic(path[dartx.codeUnitAt](0)))) return 0;
-      if (path[dartx.codeUnitAt](1) != src__characters.COLON) return 0;
-      if (!dart.test(this.isSeparator(path[dartx.codeUnitAt](2)))) return 0;
-      return 3;
-    }
-    isRootRelative(path) {
-      return this.rootLength(path) == 1;
-    }
-    getRelativeRoot(path) {
-      let length = this.rootLength(path);
-      if (length == 1) return path[dartx.get](0);
-      return null;
-    }
-    pathFromUri(uri) {
-      if (uri.scheme != '' && uri.scheme != 'file') {
-        dart.throw(new core.ArgumentError(dart.str`Uri ${uri} must have scheme 'file:'.`));
-      }
-      let path = uri.path;
-      if (uri.host == '') {
-        if (dart.test(path[dartx.startsWith]('/'))) path = path[dartx.replaceFirst]("/", "");
-      } else {
-        path = dart.str`\\\\${uri.host}${path}`;
-      }
-      return core.Uri.decodeComponent(path[dartx.replaceAll]("/", "\\"));
-    }
-    absolutePathToUri(path) {
-      let parsed = src__parsed_path.ParsedPath.parse(path, this);
-      if (dart.test(parsed.root[dartx.startsWith]('\\\\'))) {
-        let rootParts = parsed.root[dartx.split]('\\')[dartx.where](dart.fn(part => part != '', StringTobool()));
-        parsed.parts[dartx.insert](0, rootParts[dartx.last]);
-        if (dart.test(parsed.hasTrailingSeparator)) {
-          parsed.parts[dartx.add]("");
-        }
-        return core.Uri.new({scheme: 'file', host: rootParts[dartx.first], pathSegments: parsed.parts});
-      } else {
-        if (parsed.parts[dartx.length] == 0 || dart.test(parsed.hasTrailingSeparator)) {
-          parsed.parts[dartx.add]("");
-        }
-        parsed.parts[dartx.insert](0, parsed.root[dartx.replaceAll]("/", "")[dartx.replaceAll]("\\", ""));
-        return core.Uri.new({scheme: 'file', pathSegments: parsed.parts});
-      }
-    }
-  };
-  dart.setSignature(src__style__windows.WindowsStyle, {
-    constructors: () => ({new: dart.definiteFunctionType(src__style__windows.WindowsStyle, [])}),
-    methods: () => ({
-      containsSeparator: dart.definiteFunctionType(core.bool, [core.String]),
-      isSeparator: dart.definiteFunctionType(core.bool, [core.int]),
-      needsSeparator: dart.definiteFunctionType(core.bool, [core.String]),
-      rootLength: dart.definiteFunctionType(core.int, [core.String]),
-      isRootRelative: dart.definiteFunctionType(core.bool, [core.String]),
-      getRelativeRoot: dart.definiteFunctionType(core.String, [core.String]),
-      pathFromUri: dart.definiteFunctionType(core.String, [core.Uri]),
-      absolutePathToUri: dart.definiteFunctionType(core.Uri, [core.String])
-    })
-  });
-  src__utils.isAlphabetic = function(char) {
-    return dart.notNull(char) >= src__characters.UPPER_A && dart.notNull(char) <= src__characters.UPPER_Z || dart.notNull(char) >= src__characters.LOWER_A && dart.notNull(char) <= src__characters.LOWER_Z;
-  };
-  dart.fn(src__utils.isAlphabetic, intTobool());
-  src__utils.isNumeric = function(char) {
-    return dart.notNull(char) >= src__characters.ZERO && dart.notNull(char) <= src__characters.NINE;
-  };
-  dart.fn(src__utils.isNumeric, intTobool());
+        let path = uri.toFilePath();
+        let lastIndex = dart.notNull(path[dartx.length]) - 1;
+        dart.assert(path[dartx.get](lastIndex) == '/' || path[dartx.get](lastIndex) == '\\');
+        path$._current = path[dartx.substring](0, lastIndex);
+        return path$._current;
+      }
+    }
+  });
+  path$._currentUriBase = null;
+  path$._current = null;
+  dart.copyProperties(path$, {
+    get separator() {
+      return path$.context.separator;
+    }
+  });
+  path$.absolute = function(part1, part2, part3, part4, part5, part6, part7) {
+    if (part2 === void 0) part2 = null;
+    if (part3 === void 0) part3 = null;
+    if (part4 === void 0) part4 = null;
+    if (part5 === void 0) part5 = null;
+    if (part6 === void 0) part6 = null;
+    if (part7 === void 0) part7 = null;
+    return path$.context.absolute(part1, part2, part3, part4, part5, part6, part7);
+  };
+  dart.fn(path$.absolute, String__ToString());
+  path$.basename = function(path) {
+    return path$.context.basename(path);
+  };
+  dart.fn(path$.basename, StringToString());
+  path$.basenameWithoutExtension = function(path) {
+    return path$.context.basenameWithoutExtension(path);
+  };
+  dart.fn(path$.basenameWithoutExtension, StringToString());
+  path$.dirname = function(path) {
+    return path$.context.dirname(path);
+  };
+  dart.fn(path$.dirname, StringToString());
+  path$.extension = function(path) {
+    return path$.context.extension(path);
+  };
+  dart.fn(path$.extension, StringToString());
+  path$.rootPrefix = function(path) {
+    return path$.context.rootPrefix(path);
+  };
+  dart.fn(path$.rootPrefix, StringToString());
+  path$.isAbsolute = function(path) {
+    return path$.context.isAbsolute(path);
+  };
+  dart.fn(path$.isAbsolute, StringTobool());
+  path$.isRelative = function(path) {
+    return path$.context.isRelative(path);
+  };
+  dart.fn(path$.isRelative, StringTobool());
+  path$.isRootRelative = function(path) {
+    return path$.context.isRootRelative(path);
+  };
+  dart.fn(path$.isRootRelative, StringTobool());
+  path$.join = function(part1, part2, part3, part4, part5, part6, part7, part8) {
+    if (part2 === void 0) part2 = null;
+    if (part3 === void 0) part3 = null;
+    if (part4 === void 0) part4 = null;
+    if (part5 === void 0) part5 = null;
+    if (part6 === void 0) part6 = null;
+    if (part7 === void 0) part7 = null;
+    if (part8 === void 0) part8 = null;
+    return path$.context.join(part1, part2, part3, part4, part5, part6, part7, part8);
+  };
+  dart.fn(path$.join, String__ToString$());
+  path$.joinAll = function(parts) {
+    return path$.context.joinAll(parts);
+  };
+  dart.fn(path$.joinAll, IterableOfStringToString());
+  path$.split = function(path) {
+    return path$.context.split(path);
+  };
+  dart.fn(path$.split, StringToListOfString());
+  path$.normalize = function(path) {
+    return path$.context.normalize(path);
+  };
+  dart.fn(path$.normalize, StringToString());
+  path$.relative = function(path, opts) {
+    let from = opts && 'from' in opts ? opts.from : null;
+    return path$.context.relative(path, {from: from});
+  };
+  dart.fn(path$.relative, String__ToString$0());
+  path$.isWithin = function(parent, child) {
+    return path$.context.isWithin(parent, child);
+  };
+  dart.fn(path$.isWithin, StringAndStringTobool());
+  path$.withoutExtension = function(path) {
+    return path$.context.withoutExtension(path);
+  };
+  dart.fn(path$.withoutExtension, StringToString());
+  path$.fromUri = function(uri) {
+    return path$.context.fromUri(uri);
+  };
+  dart.fn(path$.fromUri, dynamicToString());
+  path$.toUri = function(path) {
+    return path$.context.toUri(path);
+  };
+  dart.fn(path$.toUri, StringToUri());
+  path$.prettyUri = function(uri) {
+    return path$.context.prettyUri(uri);
+  };
+  dart.fn(path$.prettyUri, dynamicToString());
+  path$.Context = src__context.Context;
+  path$.PathException = src__path_exception.PathException;
+  path$.Style = src__style.Style;
   // Exports:
-  exports.path = path$;
   exports.src__characters = src__characters;
-  exports.src__context = src__context;
-  exports.src__internal_style = src__internal_style;
-  exports.src__parsed_path = src__parsed_path;
-  exports.src__path_exception = src__path_exception;
+  exports.src__style__windows = src__style__windows;
   exports.src__style__posix = src__style__posix;
   exports.src__style__url = src__style__url;
-  exports.src__style__windows = src__style__windows;
+  exports.src__path_exception = src__path_exception;
   exports.src__style = src__style;
   exports.src__utils = src__utils;
+  exports.src__parsed_path = src__parsed_path;
+  exports.src__internal_style = src__internal_style;
+  exports.src__context = src__context;
+  exports.path = path$;
 });