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pkg/dev_compiler/tool/input_sdk/lib/core/list.dart

Index: pkg/dev_compiler/tool/input_sdk/lib/core/list.dart
diff --git a/pkg/dev_compiler/tool/input_sdk/lib/core/list.dart b/pkg/dev_compiler/tool/input_sdk/lib/core/list.dart
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-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-part of dart.core;
-
-/**
- * An indexable collection of objects with a length.
- *
- * Subclasses of this class implement different kinds of lists.
- * The most common kinds of lists are:
- *
- * * Fixed-length list.
- *   An error occurs when attempting to use operations
- *   that can change the length of the list.
- *
- * * Growable list. Full implementation of the API defined in this class.
- *
- * The default growable list, as returned by `new List()` or `[]`, keeps
- * an internal buffer, and grows that buffer when necessary. This guarantees
- * that a sequence of [add] operations will each execute in amortized constant
- * time. Setting the length directly may take time proportional to the new
- * length, and may change the internal capacity so that a following add
- * operation will need to immediately increase the buffer capacity.
- * Other list implementations may have different performance behavior.
- *
- * The following code illustrates that some List implementations support
- * only a subset of the API.
- *
- *     List<int> fixedLengthList = new List(5);
- *     fixedLengthList.length = 0;  // Error
- *     fixedLengthList.add(499);    // Error
- *     fixedLengthList[0] = 87;
- *     List<int> growableList = [1, 2];
- *     growableList.length = 0;
- *     growableList.add(499);
- *     growableList[0] = 87;
- *
- * Lists are [Iterable]. Iteration occurs over values in index order. Changing
- * the values does not affect iteration, but changing the valid
- * indices&mdash;that is, changing the list's length&mdash;between iteration
- * steps causes a [ConcurrentModificationError]. This means that only growable
- * lists can throw ConcurrentModificationError. If the length changes
- * temporarily and is restored before continuing the iteration, the iterator
- * does not detect it.
- *
- * It is generally not allowed to modify the list's length (adding or removing
- * elements) while an operation on the list is being performed,
- * for example during a call to [forEach] or [sort].
- * Changing the list's length while it is being iterated, either by iterating it
- * directly or through iterating an [Iterable] that is backed by the list, will
- * break the iteration.
- */
-abstract class List<E> implements Iterable<E>, EfficientLength {
-  /**
-   * Creates a list of the given length.
-   *
-   * The created list is fixed-length if [length] is provided.
-   *
-   *     List fixedLengthList = new List(3);
-   *     fixedLengthList.length;     // 3
-   *     fixedLengthList.length = 1; // Error
-   *
-   * The list has length 0 and is growable if [length] is omitted.
-   *
-   *     List growableList = new List();
-   *     growableList.length; // 0;
-   *     growableList.length = 3;
-   *
-   * To create a growable list with a given length, just assign the length
-   * right after creation:
-   *
-   *     List growableList = new List()..length = 500;
-   *
-   * The [length] must not be negative or null, if it is provided.
-   */
-  external factory List([int length]);
-
-  /**
-   * Creates a fixed-length list of the given length, and initializes the
-   * value at each position with [fill]:
-   *
-   *     new List<int>.filled(3, 0); // [0, 0, 0]
-   *
-   * The [length] must be a non-negative integer.
-   *
-   * If the list is growable, changing its length will not initialize new
-   * entries with [fill]. After being created and filled, the list is
-   * no different from any other growable or fixed-length list
-   * created using [List].
-   */
-  external factory List.filled(int length, E fill, {bool growable: false});
-
-  /**
-   * Creates a list containing all [elements].
-   *
-   * The [Iterator] of [elements] provides the order of the elements.
-   *
-   * This constructor returns a growable list when [growable] is true;
-   * otherwise, it returns a fixed-length list.
-   */
-  external factory List.from(Iterable elements, { bool growable: true });
-
-  /**
-   * Generates a list of values.
-   *
-   * Creates a list with [length] positions and fills it with values created by
-   * calling [generator] for each index in the range `0` .. `length - 1`
-   * in increasing order.
-   *
-   *     new List<int>.generate(3, (int index) => index * index); // [0, 1, 4]
-   *
-   * The created list is fixed-length unless [growable] is true.
-   */
-  factory List.generate(int length, E generator(int index),
-                        { bool growable: true }) {
-    List<E> result;
-    if (growable) {
-      result = <E>[]..length = length;
-    } else {
-      result = new List<E>(length);
-    }
-    for (int i = 0; i < length; i++) {
-      result[i] = generator(i);
-    }
-    return result;
-  }
-
-  /**
-   * Creates an unmodifiable list containing all [elements].
-   *
-   * The [Iterator] of [elements] provides the order of the elements.
-   *
-   * An unmodifiable list cannot have its length or elements changed.
-   * If the elements are themselves immutable, then the resulting list
-   * is also immutable.
-   */
-  external factory List.unmodifiable(Iterable elements);
-
-  /**
-   * Returns the object at the given [index] in the list
-   * or throws a [RangeError] if [index] is out of bounds.
-   */
-  E operator [](int index);
-
-  /**
-   * Sets the value at the given [index] in the list to [value]
-   * or throws a [RangeError] if [index] is out of bounds.
-   */
-  void operator []=(int index, E value);
-
-  /**
-   * Returns the number of objects in this list.
-   *
-   * The valid indices for a list are `0` through `length - 1`.
-   */
-  int get length;
-
-  /**
-   * Changes the length of this list.
-   *
-   * If [newLength] is greater than
-   * the current length, entries are initialized to [:null:].
-   *
-   * Throws an [UnsupportedError] if the list is fixed-length.
-   */
-  void set length(int newLength);
-
-  /**
-   * Adds [value] to the end of this list,
-   * extending the length by one.
-   *
-   * Throws an [UnsupportedError] if the list is fixed-length.
-   */
-  void add(E value);
-
-  /**
-   * Appends all objects of [iterable] to the end of this list.
-   *
-   * Extends the length of the list by the number of objects in [iterable].
-   * Throws an [UnsupportedError] if this list is fixed-length.
-   */
-  void addAll(Iterable<E> iterable);
-
-  /**
-   * Returns an [Iterable] of the objects in this list in reverse order.
-   */
-  Iterable<E> get reversed;
-
-  /**
-   * Sorts this list according to the order specified by the [compare] function.
-   *
-   * The [compare] function must act as a [Comparator].
-   *
-   *     List<String> numbers = ['two', 'three', 'four'];
-   *     // Sort from shortest to longest.
-   *     numbers.sort((a, b) => a.length.compareTo(b.length));
-   *     print(numbers);  // [two, four, three]
-   *
-   * The default List implementations use [Comparable.compare] if
-   * [compare] is omitted.
-   *
-   *     List<int> nums = [13, 2, -11];
-   *     nums.sort();
-   *     print(nums);  // [-11, 2, 13]
-   *
-   * A [Comparator] may compare objects as equal (return zero), even if they
-   * are distinct objects.
-   * The sort function is not guaranteed to be stable, so distinct objects
-   * that compare as equal may occur in any order in the result:
-   *
-   *     List<String> numbers = ['one', 'two', 'three', 'four'];
-   *     numbers.sort((a, b) => a.length.compareTo(b.length));
-   *     print(numbers);  // [one, two, four, three] OR [two, one, four, three]
-   */
-  void sort([int compare(E a, E b)]);
-
-  /**
-   * Shuffles the elements of this list randomly.
-   */
-  void shuffle([Random random]);
-
-  /**
-   * Returns the first index of [element] in this list.
-   *
-   * Searches the list from index [start] to the end of the list.
-   * The first time an object [:o:] is encountered so that [:o == element:],
-   * the index of [:o:] is returned.
-   *
-   *     List<String> notes = ['do', 're', 'mi', 're'];
-   *     notes.indexOf('re');    // 1
-   *     notes.indexOf('re', 2); // 3
-   *
-   * Returns -1 if [element] is not found.
-   *
-   *     notes.indexOf('fa');    // -1
-   */
-  int indexOf(E element, [int start = 0]);
-
-  /**
-   * Returns the last index of [element] in this list.
-   *
-   * Searches the list backwards from index [start] to 0.
-   *
-   * The first time an object [:o:] is encountered so that [:o == element:],
-   * the index of [:o:] is returned.
-   *
-   *     List<String> notes = ['do', 're', 'mi', 're'];
-   *     notes.lastIndexOf('re', 2); // 1
-   *
-   * If [start] is not provided, this method searches from the end of the
-   * list./Returns
-   *
-   *     notes.lastIndexOf('re');  // 3
-   *
-   * Returns -1 if [element] is not found.
-   *
-   *     notes.lastIndexOf('fa');  // -1
-   */
-  int lastIndexOf(E element, [int start]);
-
-  /**
-   * Removes all objects from this list;
-   * the length of the list becomes zero.
-   *
-   * Throws an [UnsupportedError], and retains all objects, if this
-   * is a fixed-length list.
-   */
-  void clear();
-
-  /**
-   * Inserts the object at position [index] in this list.
-   *
-   * This increases the length of the list by one and shifts all objects
-   * at or after the index towards the end of the list.
-   *
-   * An error occurs if the [index] is less than 0 or greater than length.
-   * An [UnsupportedError] occurs if the list is fixed-length.
-   */
-  void insert(int index, E element);
-
-  /**
-   * Inserts all objects of [iterable] at position [index] in this list.
-   *
-   * This increases the length of the list by the length of [iterable] and
-   * shifts all later objects towards the end of the list.
-   *
-   * An error occurs if the [index] is less than 0 or greater than length.
-   * An [UnsupportedError] occurs if the list is fixed-length.
-   */
-  void insertAll(int index, Iterable<E> iterable);
-
-  /**
-   * Overwrites objects of `this` with the objects of [iterable], starting
-   * at position [index] in this list.
-   *
-   *     List<String> list = ['a', 'b', 'c'];
-   *     list.setAll(1, ['bee', 'sea']);
-   *     list.join(', '); // 'a, bee, sea'
-   *
-   * This operation does not increase the length of `this`.
-   *
-   * The [index] must be non-negative and no greater than [length].
-   *
-   * The [iterable] must not have more elements than what can fit from [index]
-   * to [length].
-   *
-   * If `iterable` is based on this list, its values may change /during/ the
-   * `setAll` operation.
-   */
-  void setAll(int index, Iterable<E> iterable);
-
-  /**
-   * Removes the first occurence of [value] from this list.
-   *
-   * Returns true if [value] was in the list, false otherwise.
-   *
-   *     List<String> parts = ['head', 'shoulders', 'knees', 'toes'];
-   *     parts.remove('head'); // true
-   *     parts.join(', ');     // 'shoulders, knees, toes'
-   *
-   * The method has no effect if [value] was not in the list.
-   *
-   *     // Note: 'head' has already been removed.
-   *     parts.remove('head'); // false
-   *     parts.join(', ');     // 'shoulders, knees, toes'
-   *
-   * An [UnsupportedError] occurs if the list is fixed-length.
-   */
-  bool remove(Object value);
-
-  /**
-   * Removes the object at position [index] from this list.
-   *
-   * This method reduces the length of `this` by one and moves all later objects
-   * down by one position.
-   *
-   * Returns the removed object.
-   *
-   * The [index] must be in the range `0 ≤ index < length`.
-   *
-   * Throws an [UnsupportedError] if this is a fixed-length list. In that case
-   * the list is not modified.
-   */
-  E removeAt(int index);
-
-  /**
-   * Pops and returns the last object in this list.
-   *
-   * Throws an [UnsupportedError] if this is a fixed-length list.
-   */
-  E removeLast();
-
-  /**
-   * Removes all objects from this list that satisfy [test].
-   *
-   * An object [:o:] satisfies [test] if [:test(o):] is true.
-   *
-   *     List<String> numbers = ['one', 'two', 'three', 'four'];
-   *     numbers.removeWhere((item) => item.length == 3);
-   *     numbers.join(', '); // 'three, four'
-   *
-   * Throws an [UnsupportedError] if this is a fixed-length list.
-   */
-  void removeWhere(bool test(E element));
-
-  /**
-   * Removes all objects from this list that fail to satisfy [test].
-   *
-   * An object [:o:] satisfies [test] if [:test(o):] is true.
-   *
-   *     List<String> numbers = ['one', 'two', 'three', 'four'];
-   *     numbers.retainWhere((item) => item.length == 3);
-   *     numbers.join(', '); // 'one, two'
-   *
-   * Throws an [UnsupportedError] if this is a fixed-length list.
-   */
-  void retainWhere(bool test(E element));
-
-  /**
-   * Returns a new list containing the objects from [start] inclusive to [end]
-   * exclusive.
-   *
-   *     List<String> colors = ['red', 'green', 'blue', 'orange', 'pink'];
-   *     colors.sublist(1, 3); // ['green', 'blue']
-   *
-   * If [end] is omitted, the [length] of `this` is used.
-   *
-   *     colors.sublist(1);  // ['green', 'blue', 'orange', 'pink']
-   *
-   * An error occurs if [start] is outside the range `0` .. `length` or if
-   * [end] is outside the range `start` .. `length`.
-   */
-  List<E> sublist(int start, [int end]);
-
-  /**
-   * Returns an [Iterable] that iterates over the objects in the range
-   * [start] inclusive to [end] exclusive.
-   *
-   * An error occurs if [end] is before [start].
-   *
-   * An error occurs if the [start] and [end] are not valid ranges at the time
-   * of the call to this method. The returned [Iterable] behaves like
-   * `skip(start).take(end - start)`. That is, it does not throw exceptions
-   * if `this` changes size.
-   *
-   *     List<String> colors = ['red', 'green', 'blue', 'orange', 'pink'];
-   *     Iterable<String> range = colors.getRange(1, 4);
-   *     range.join(', ');  // 'green, blue, orange'
-   *     colors.length = 3;
-   *     range.join(', ');  // 'green, blue'
-   */
-  Iterable<E> getRange(int start, int end);
-
-  /**
-   * Copies the objects of [iterable], skipping [skipCount] objects first,
-   * into the range [start], inclusive, to [end], exclusive, of the list.
-   *
-   *     List<int> list1 = [1, 2, 3, 4];
-   *     List<int> list2 = [5, 6, 7, 8, 9];
-   *     // Copies the 4th and 5th items in list2 as the 2nd and 3rd items
-   *     // of list1.
-   *     list1.setRange(1, 3, list2, 3);
-   *     list1.join(', '); // '1, 8, 9, 4'
-   *
-   * The [start] and [end] indices must satisfy `0 ≤ start ≤ end ≤ length`.
-   * If [start] equals [end], this method has no effect.
-   *
-   * The [iterable] must have enough objects to fill the range from `start`
-   * to `end` after skipping [skipCount] objects.
-   *
-   * If `iterable` is this list, the operation will copy the elements originally
-   * in the range from `skipCount` to `skipCount + (end - start)` to the
-   * range `start` to `end`, even if the two ranges overlap.
-   *
-   * If `iterable` depends on this list in some other way, no guarantees are
-   * made.
-   */
-  void setRange(int start, int end, Iterable<E> iterable, [int skipCount = 0]);
-
-  /**
-   * Removes the objects in the range [start] inclusive to [end] exclusive.
-   *
-   * The [start] and [end] indices must be in the range
-   * `0 ≤ index ≤ length`, and `start ≤ end`.
-   *
-   * Throws an [UnsupportedError] if this is a fixed-length list. In that case
-   * the list is not modified.
-   */
-  void removeRange(int start, int end);
-
-  /**
-   * Sets the objects in the range [start] inclusive to [end] exclusive
-   * to the given [fillValue].
-   *
-   * An error occurs if [start]..[end] is not a valid range for `this`.
-   */
-  void fillRange(int start, int end, [E fillValue]);
-
-  /**
-   * Removes the objects in the range [start] inclusive to [end] exclusive
-   * and inserts the contents of [replacement] in its place.
-   *
-   *     List<int> list = [1, 2, 3, 4, 5];
-   *     list.replaceRange(1, 4, [6, 7]);
-   *     list.join(', '); // '1, 6, 7, 5'
-   *
-   * An error occurs if [start]..[end] is not a valid range for `this`.
-   *
-   * This method does not work on fixed-length lists, even when [replacement]
-   * has the same number of elements as the replaced range. In that case use
-   * [setRange] instead.
-   */
-  void replaceRange(int start, int end, Iterable<E> replacement);
-
-  /**
-   * Returns an unmodifiable [Map] view of `this`.
-   *
-   * The map uses the indices of this list as keys and the corresponding objects
-   * as values. The `Map.keys` [Iterable] iterates the indices of this list
-   * in numerical order.
-   *
-   *     List<String> words = ['fee', 'fi', 'fo', 'fum'];
-   *     Map<int, String> map = words.asMap();
-   *     map[0] + map[1];   // 'feefi';
-   *     map.keys.toList(); // [0, 1, 2, 3]
-   */
-  Map<int, E> asMap();
-}