Library custom formatters

test/codegen_expected/path/path.js

 dart_library.library('path', null, /* Imports */[
   'dart_sdk'
 ], function load__path(exports, dart_sdk) {

[Jennifer Messerly, 2016/07/21 13:19:57]

it may be worth trying "pub upgrade". I think this diffs in generated files are
based on some package differences. But it could be the checked in one is the
older one, in which case it's good to update. Not sure :)

[bmilligan, 2016/07/22 18:25:17]

I ran pub upgrade and git pull. Does it still look off? Maybe it is an older
checked in version.

   '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$;
 });