Some preliminary support for quasi-generics

lib/runtime/dart/js.js

-dart_library.library('dart/js', null, /* Imports */[
-  "dart_runtime/dart",
-  'dart/core',
-  'dart/collection',
-  'dart/_js_helper'
-], /* Lazy imports */[
-], function(exports, dart, core, collection, _js_helper) {
-  'use strict';
-  let dartx = dart.dartx;
-  dart.defineLazyProperties(exports, {
-    get context() {
-      return dart.as(_wrapToDart(dart.global), JsObject);
-    }
-  });
-  let _jsObject = Symbol('_jsObject');
-  class JsObject extends core.Object {
-    _fromJs(jsObject) {
-      this[_jsObject] = jsObject;
-      dart.assert(this[_jsObject] != null);
-    }
-    static new(constructor, arguments$) {
-      if (arguments$ === void 0)
-        arguments$ = null;
-      let ctor = constructor[_jsObject];
-      if (arguments$ == null) {
-        return dart.as(_wrapToDart(new ctor()), JsObject);
-      }
-      return dart.as(_wrapToDart(new ctor(...arguments$)), JsObject);
-    }
-    static fromBrowserObject(object) {
-      if (dart.is(object, core.num) || typeof object == 'string' || typeof object == 'boolean' || object == null) {
-        dart.throw(new core.ArgumentError("object cannot be a num, string, bool, or null"));
-      }
-      return dart.as(_wrapToDart(_convertToJS(object)), JsObject);
-    }
-    static jsify(object) {
-      if (!dart.is(object, core.Map) && !dart.is(object, core.Iterable)) {
-        dart.throw(new core.ArgumentError("object must be a Map or Iterable"));
-      }
-      return dart.as(_wrapToDart(JsObject._convertDataTree(object)), JsObject);
-    }
-    static _convertDataTree(data) {
-      let _convertedObjects = collection.HashMap.identity();
-      function _convert(o) {
-        if (dart.notNull(_convertedObjects.containsKey(o))) {
-          return _convertedObjects.get(o);
-        }
-        if (dart.is(o, core.Map)) {
-          let convertedMap = {};
-          _convertedObjects.set(o, convertedMap);
-          for (let key of dart.as(dart.dload(o, 'keys'), core.Iterable)) {
-            convertedMap[key] = _convert(dart.dindex(o, key));
-          }
-          return convertedMap;
-        } else if (dart.is(o, core.Iterable)) {
-          let convertedList = [];
-          _convertedObjects.set(o, convertedList);
-          convertedList[dartx.addAll](dart.as(dart.dsend(o, 'map', _convert), core.Iterable));
-          return convertedList;
-        } else {
-          return _convertToJS(o);
-        }
-      }
-      dart.fn(_convert);
-      return _convert(data);
-    }
-    get(property) {
-      if (!(typeof property == 'string') && !dart.is(property, core.num)) {
-        dart.throw(new core.ArgumentError("property is not a String or num"));
-      }
-      return _convertToDart(this[_jsObject][property]);
-    }
-    set(property, value) {
-      if (!(typeof property == 'string') && !dart.is(property, core.num)) {
-        dart.throw(new core.ArgumentError("property is not a String or num"));
-      }
-      this[_jsObject][property] = _convertToJS(value);
-      return value;
-    }
-    get hashCode() {
-      return 0;
-    }
-    ['=='](other) {
-      return dart.is(other, JsObject) && this[_jsObject] === dart.dload(other, _jsObject);
-    }
-    hasProperty(property) {
-      if (!(typeof property == 'string') && !dart.is(property, core.num)) {
-        dart.throw(new core.ArgumentError("property is not a String or num"));
-      }
-      return property in this[_jsObject];
-    }
-    deleteProperty(property) {
-      if (!(typeof property == 'string') && !dart.is(property, core.num)) {
-        dart.throw(new core.ArgumentError("property is not a String or num"));
-      }
-      delete this[_jsObject][property];
-    }
-    instanceof(type) {
-      return this[_jsObject] instanceof _convertToJS(type);
-    }
-    toString() {
-      try {
-        return String(this[_jsObject]);
-      } catch (e) {
-        return super.toString();
-      }
-
-    }
-    callMethod(method, args) {
-      if (args === void 0)
-        args = null;
-      if (!(typeof method == 'string') && !dart.is(method, core.num)) {
-        dart.throw(new core.ArgumentError("method is not a String or num"));
-      }
-      if (args != null)
-        args = core.List.from(args[dartx.map](_convertToJS));
-      let fn = this[_jsObject][method];
-      if (!(fn instanceof Function)) {
-        dart.throw(new core.NoSuchMethodError(this[_jsObject], core.Symbol.new(dart.as(method, core.String)), args, dart.map()));
-      }
-      return _convertToDart(fn.apply(this[_jsObject], args));
-    }
-  }
-  dart.defineNamedConstructor(JsObject, '_fromJs');
-  dart.setSignature(JsObject, {
-    constructors: () => ({
-      _fromJs: [JsObject, [dart.dynamic]],
-      new: [JsObject, [JsFunction], [core.List]],
-      fromBrowserObject: [JsObject, [dart.dynamic]],
-      jsify: [JsObject, [dart.dynamic]]
-    }),
-    methods: () => ({
-      get: [dart.dynamic, [dart.dynamic]],
-      set: [dart.dynamic, [dart.dynamic, dart.dynamic]],
-      hasProperty: [core.bool, [dart.dynamic]],
-      deleteProperty: [dart.void, [dart.dynamic]],
-      instanceof: [core.bool, [JsFunction]],
-      callMethod: [dart.dynamic, [dart.dynamic], [core.List]]
-    }),
-    statics: () => ({_convertDataTree: [dart.dynamic, [dart.dynamic]]}),
-    names: ['_convertDataTree']
-  });
-  class JsFunction extends JsObject {
-    static withThis(f) {
-      return new JsFunction._fromJs(function() {
-        let args = [_convertToDart(this)];
-        for (let arg of arguments) {
-          args.push(_convertToDart(arg));
-        }
-        return _convertToJS(f(...args));
-      });
-    }
-    _fromJs(jsObject) {
-      super._fromJs(jsObject);
-    }
-    apply(args, opts) {
-      let thisArg = opts && 'thisArg' in opts ? opts.thisArg : null;
-      return _convertToDart(this[_jsObject].apply(_convertToJS(thisArg), args == null ? null : core.List.from(args[dartx.map](_convertToJS))));
-    }
-  }
-  dart.defineNamedConstructor(JsFunction, '_fromJs');
-  dart.setSignature(JsFunction, {
-    constructors: () => ({
-      withThis: [JsFunction, [core.Function]],
-      _fromJs: [JsFunction, [dart.dynamic]]
-    }),
-    methods: () => ({apply: [dart.dynamic, [core.List], {thisArg: dart.dynamic}]})
-  });
-  let _checkIndex = Symbol('_checkIndex');
-  let _checkInsertIndex = Symbol('_checkInsertIndex');
-  let JsArray$ = dart.generic(function(E) {
-    class JsArray extends dart.mixin(JsObject, collection.ListMixin$(E)) {
-      JsArray() {
-        super._fromJs([]);
-      }
-      from(other) {
-        super._fromJs((() => {
-          let _ = [];
-          _[dartx.addAll](other[dartx.map](dart.as(_convertToJS, __CastType0)));
-          return _;
-        })());
-      }
-      _fromJs(jsObject) {
-        super._fromJs(jsObject);
-      }
-      [_checkIndex](index) {
-        if (typeof index == 'number' && (dart.notNull(index) < 0 || dart.notNull(index) >= dart.notNull(this.length))) {
-          dart.throw(new core.RangeError.range(index, 0, this.length));
-        }
-      }
-      [_checkInsertIndex](index) {
-        if (typeof index == 'number' && (dart.notNull(index) < 0 || dart.notNull(index) >= dart.notNull(this.length) + 1)) {
-          dart.throw(new core.RangeError.range(index, 0, this.length));
-        }
-      }
-      static _checkRange(start, end, length) {
-        if (dart.notNull(start) < 0 || dart.notNull(start) > dart.notNull(length)) {
-          dart.throw(new core.RangeError.range(start, 0, length));
-        }
-        if (dart.notNull(end) < dart.notNull(start) || dart.notNull(end) > dart.notNull(length)) {
-          dart.throw(new core.RangeError.range(end, start, length));
-        }
-      }
-      get(index) {
-        if (dart.is(index, core.num) && index == index[dartx.toInt]()) {
-          this[_checkIndex](index);
-        }
-        return dart.as(super.get(index), E);
-      }
-      set(index, value) {
-        dart.as(value, E);
-        if (dart.is(index, core.num) && index == index[dartx.toInt]()) {
-          this[_checkIndex](index);
-        }
-        super.set(index, value);
-        return value;
-      }
-      get length() {
-        let len = this[_jsObject].length;
-        if (typeof len === "number" && len >>> 0 === len) {
-          return len;
-        }
-        dart.throw(new core.StateError('Bad JsArray length'));
-      }
-      set length(length) {
-        super.set('length', length);
-      }
-      add(value) {
-        dart.as(value, E);
-        this.callMethod('push', [value]);
-      }
-      addAll(iterable) {
-        dart.as(iterable, core.Iterable$(E));
-        let list = iterable instanceof Array ? iterable : core.List.from(iterable);
-        this.callMethod('push', dart.as(list, core.List));
-      }
-      insert(index, element) {
-        dart.as(element, E);
-        this[_checkInsertIndex](index);
-        this.callMethod('splice', [index, 0, element]);
-      }
-      removeAt(index) {
-        this[_checkIndex](index);
-        return dart.as(dart.dindex(this.callMethod('splice', [index, 1]), 0), E);
-      }
-      removeLast() {
-        if (this.length == 0)
-          dart.throw(new core.RangeError(-1));
-        return dart.as(this.callMethod('pop'), E);
-      }
-      removeRange(start, end) {
-        JsArray$()._checkRange(start, end, this.length);
-        this.callMethod('splice', [start, dart.notNull(end) - dart.notNull(start)]);
-      }
-      setRange(start, end, iterable, skipCount) {
-        dart.as(iterable, core.Iterable$(E));
-        if (skipCount === void 0)
-          skipCount = 0;
-        JsArray$()._checkRange(start, end, this.length);
-        let length = dart.notNull(end) - dart.notNull(start);
-        if (length == 0)
-          return;
-        if (dart.notNull(skipCount) < 0)
-          dart.throw(new core.ArgumentError(skipCount));
-        let args = [start, length];
-        args[dartx.addAll](iterable[dartx.skip](skipCount)[dartx.take](length));
-        this.callMethod('splice', args);
-      }
-      sort(compare) {
-        if (compare === void 0)
-          compare = null;
-        dart.as(compare, dart.functionType(core.int, [E, E]));
-        this.callMethod('sort', compare == null ? [] : [compare]);
-      }
-    }
-    dart.defineNamedConstructor(JsArray, 'from');
-    dart.defineNamedConstructor(JsArray, '_fromJs');
-    dart.setSignature(JsArray, {
-      constructors: () => ({
-        JsArray: [JsArray$(E), []],
-        from: [JsArray$(E), [core.Iterable$(E)]],
-        _fromJs: [JsArray$(E), [dart.dynamic]]
-      }),
-      methods: () => ({
-        [_checkIndex]: [dart.dynamic, [core.int]],
-        [_checkInsertIndex]: [dart.dynamic, [core.int]],
-        get: [E, [core.int]],
-        set: [dart.void, [core.int, E]],
-        add: [dart.void, [E]],
-        addAll: [dart.void, [core.Iterable$(E)]],
-        insert: [dart.void, [core.int, E]],
-        removeAt: [E, [core.int]],
-        removeLast: [E, []],
-        setRange: [dart.void, [core.int, core.int, core.Iterable$(E)], [core.int]],
-        sort: [dart.void, [], [dart.functionType(core.int, [E, E])]]
-      }),
-      statics: () => ({_checkRange: [dart.dynamic, [core.int, core.int, core.int]]}),
-      names: ['_checkRange']
-    });
-    dart.defineExtensionMembers(JsArray, [
-      'get',
-      'set',
-      'add',
-      'addAll',
-      'insert',
-      'removeAt',
-      'removeLast',
-      'removeRange',
-      'setRange',
-      'sort',
-      'length',
-      'length'
-    ]);
-    return JsArray;
-  });
-  let JsArray = JsArray$();
-  function _isBrowserType(o) {
-    return o instanceof Blob || o instanceof Event || window.KeyRange && o instanceof KeyRange || o instanceof ImageData || o instanceof Node || window.TypedData && o instanceof TypedData || o instanceof Window;
-  }
-  dart.fn(_isBrowserType, core.bool, [dart.dynamic]);
-  let _dartObj = Symbol('_dartObj');
-  class _DartObject extends core.Object {
-    _DartObject(dartObj) {
-      this[_dartObj] = dartObj;
-    }
-  }
-  dart.setSignature(_DartObject, {
-    constructors: () => ({_DartObject: [_DartObject, [dart.dynamic]]})
-  });
-  function _convertToJS(o) {
-    if (o == null || typeof o == 'string' || dart.is(o, core.num) || typeof o == 'boolean' || dart.notNull(_isBrowserType(o))) {
-      return o;
-    } else if (dart.is(o, core.DateTime)) {
-      return _js_helper.Primitives.lazyAsJsDate(o);
-    } else if (dart.is(o, JsObject)) {
-      return dart.dload(o, _jsObject);
-    } else if (dart.is(o, core.Function)) {
-      return _putIfAbsent(exports._jsProxies, o, _wrapDartFunction);
-    } else {
-      return _putIfAbsent(exports._jsProxies, o, dart.fn(o => new _DartObject(o), _DartObject, [dart.dynamic]));
-    }
-  }
-  dart.fn(_convertToJS);
-  function _wrapDartFunction(f) {
-    let wrapper = function() {
-      let args = Array.prototype.map.call(arguments, _convertToDart);
-      return _convertToJS(f(...args));
-    };
-    dart.dsetindex(exports._dartProxies, wrapper, f);
-    return wrapper;
-  }
-  dart.fn(_wrapDartFunction);
-  function _convertToDart(o) {
-    if (o == null || typeof o == "string" || typeof o == "number" || typeof o == "boolean" || dart.notNull(_isBrowserType(o))) {
-      return o;
-    } else if (o instanceof Date) {
-      let ms = o.getTime();
-      return new core.DateTime.fromMillisecondsSinceEpoch(ms);
-    } else if (dart.is(o, _DartObject)) {
-      return dart.dload(o, _dartObj);
-    } else {
-      return _putIfAbsent(exports._dartProxies, o, _wrapToDart);
-    }
-  }
-  dart.fn(_convertToDart, core.Object, [dart.dynamic]);
-  function _wrapToDart(o) {
-    if (typeof o == "function") {
-      return new JsFunction._fromJs(o);
-    }
-    if (o instanceof Array) {
-      return new JsArray._fromJs(o);
-    }
-    return new JsObject._fromJs(o);
-  }
-  dart.fn(_wrapToDart);
-  dart.defineLazyProperties(exports, {
-    get _dartProxies() {
-      return new WeakMap();
-    },
-    get _jsProxies() {
-      return new WeakMap();
-    }
-  });
-  function _putIfAbsent(weakMap, o, getValue) {
-    let value = weakMap.get(o);
-    if (value == null) {
-      value = dart.dcall(getValue, o);
-      weakMap.set(o, value);
-    }
-    return value;
-  }
-  dart.fn(_putIfAbsent, core.Object, [dart.dynamic, dart.dynamic, dart.functionType(dart.dynamic, [dart.dynamic])]);
-  let __CastType0$ = dart.generic(function(E) {
-    let __CastType0 = dart.typedef('__CastType0', () => dart.functionType(dart.dynamic, [E]));
-    return __CastType0;
-  });
-  let __CastType0 = __CastType0$();
-  // Exports:
-  exports.JsObject = JsObject;
-  exports.JsFunction = JsFunction;
-  exports.JsArray$ = JsArray$;
-  exports.JsArray = JsArray;
-});