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benchmark-umd-lazy-parsing
/**
* Copyright (c) 2014-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
typeof define === 'function' && define.amd ? define(factory) :
(global.Immutable = factory());
}(this, function () { 'use strict';var SLICE$0 = Array.prototype.slice;
function createClass(ctor, superClass) {
if (superClass) {
ctor.prototype = Object.create(superClass.prototype);
}
ctor.prototype.constructor = ctor;
}
function Iterable(value) {
return isIterable(value) ? value : Seq(value);
}
createClass(KeyedIterable, Iterable);
function KeyedIterable(value) {
return isKeyed(value) ? value : KeyedSeq(value);
}
createClass(IndexedIterable, Iterable);
function IndexedIterable(value) {
return isIndexed(value) ? value : IndexedSeq(value);
}
createClass(SetIterable, Iterable);
function SetIterable(value) {
return isIterable(value) && !isAssociative(value) ? value : SetSeq(value);
}
function isIterable(maybeIterable) {
return !!(maybeIterable && maybeIterable[IS_ITERABLE_SENTINEL]);
}
function isKeyed(maybeKeyed) {
return !!(maybeKeyed && maybeKeyed[IS_KEYED_SENTINEL]);
}
function isIndexed(maybeIndexed) {
return !!(maybeIndexed && maybeIndexed[IS_INDEXED_SENTINEL]);
}
function isAssociative(maybeAssociative) {
return isKeyed(maybeAssociative) || isIndexed(maybeAssociative);
}
function isOrdered(maybeOrdered) {
return !!(maybeOrdered && maybeOrdered[IS_ORDERED_SENTINEL]);
}
Iterable.isIterable = isIterable;
Iterable.isKeyed = isKeyed;
Iterable.isIndexed = isIndexed;
Iterable.isAssociative = isAssociative;
Iterable.isOrdered = isOrdered;
Iterable.Keyed = KeyedIterable;
Iterable.Indexed = IndexedIterable;
Iterable.Set = SetIterable;
var IS_ITERABLE_SENTINEL = '@@__IMMUTABLE_ITERABLE__@@';
var IS_KEYED_SENTINEL = '@@__IMMUTABLE_KEYED__@@';
var IS_INDEXED_SENTINEL = '@@__IMMUTABLE_INDEXED__@@';
var IS_ORDERED_SENTINEL = '@@__IMMUTABLE_ORDERED__@@';
// Used for setting prototype methods that IE8 chokes on.
var DELETE = 'delete';
// Constants describing the size of trie nodes.
var SHIFT = 5; // Resulted in best performance after ______?
var SIZE = 1 << SHIFT;
var MASK = SIZE - 1;
// A consistent shared value representing "not set" which equals nothing other
// than itself, and nothing that could be provided externally.
var NOT_SET = {};
// Boolean references, Rough equivalent of `bool &`.
var CHANGE_LENGTH = { value: false };
var DID_ALTER = { value: false };
function MakeRef(ref) {
ref.value = false;
return ref;
}
function SetRef(ref) {
ref && (ref.value = true);
}
// A function which returns a value representing an "owner" for transient writes
// to tries. The return value will only ever equal itself, and will not equal
// the return of any subsequent call of this function.
function OwnerID() {}
// http://jsperf.com/copy-array-inline
function arrCopy(arr, offset) {
offset = offset || 0;
var len = Math.max(0, arr.length - offset);
var newArr = new Array(len);
for (var ii = 0; ii < len; ii++) {
newArr[ii] = arr[ii + offset];
}
return newArr;
}
function ensureSize(iter) {
if (iter.size === undefined) {
iter.size = iter.__iterate(returnTrue);
}
return iter.size;
}
function wrapIndex(iter, index) {
// This implements "is array index" which the ECMAString spec defines as:
//
// A String property name P is an array index if and only if
// ToString(ToUint32(P)) is equal to P and ToUint32(P) is not equal
// to 2^32−1.
//
// http://www.ecma-international.org/ecma-262/6.0/#sec-array-exotic-objects
if (typeof index !== 'number') {
var uint32Index = index >>> 0; // N >>> 0 is shorthand for ToUint32
if ('' + uint32Index !== index || uint32Index === 4294967295) {
return NaN;
}
index = uint32Index;
}
return index < 0 ? ensureSize(iter) + index : index;
}
function returnTrue() {
return true;
}
function wholeSlice(begin, end, size) {
return (begin === 0 || (size !== undefined && begin <= -size)) &&
(end === undefined || (size !== undefined && end >= size));
}
function resolveBegin(begin, size) {
return resolveIndex(begin, size, 0);
}
function resolveEnd(end, size) {
return resolveIndex(end, size, size);
}
function resolveIndex(index, size, defaultIndex) {
return index === undefined ?
defaultIndex :
index < 0 ?
Math.max(0, size + index) :
size === undefined ?
index :
Math.min(size, index);
}
/* global Symbol */
var ITERATE_KEYS = 0;
var ITERATE_VALUES = 1;
var ITERATE_ENTRIES = 2;
var REAL_ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator;
var FAUX_ITERATOR_SYMBOL = '@@iterator';
var ITERATOR_SYMBOL = REAL_ITERATOR_SYMBOL || FAUX_ITERATOR_SYMBOL;
function Iterator(next) {
this.next = next;
}
Iterator.prototype.toString = function() {
return '[Iterator]';
};
Iterator.KEYS = ITERATE_KEYS;
Iterator.VALUES = ITERATE_VALUES;
Iterator.ENTRIES = ITERATE_ENTRIES;
Iterator.prototype.inspect =
Iterator.prototype.toSource = function () { return this.toString(); }
Iterator.prototype[ITERATOR_SYMBOL] = function () {
return this;
};
function iteratorValue(type, k, v, iteratorResult) {
var value = type === 0 ? k : type === 1 ? v : [k, v];
iteratorResult ? (iteratorResult.value = value) : (iteratorResult = {
value: value, done: false
});
return iteratorResult;
}
function iteratorDone() {
return { value: undefined, done: true };
}
function hasIterator(maybeIterable) {
return !!getIteratorFn(maybeIterable);
}
function isIterator(maybeIterator) {
return maybeIterator && typeof maybeIterator.next === 'function';
}
function getIterator(iterable) {
var iteratorFn = getIteratorFn(iterable);
return iteratorFn && iteratorFn.call(iterable);
}
function getIteratorFn(iterable) {
var iteratorFn = iterable && (
(REAL_ITERATOR_SYMBOL && iterable[REAL_ITERATOR_SYMBOL]) ||
iterable[FAUX_ITERATOR_SYMBOL]
);
if (typeof iteratorFn === 'function') {
return iteratorFn;
}
}
function isArrayLike(value) {
return value && typeof value.length === 'number';
}
createClass(Seq, Iterable);
function Seq(value) {
return value === null || value === undefined ? emptySequence() :
isIterable(value) ? value.toSeq() : seqFromValue(value);
}
Seq.of = function(/*...values*/) {
return Seq(arguments);
};
Seq.prototype.toSeq = function() {
return this;
};
Seq.prototype.toString = function() {
return this.__toString('Seq {', '}');
};
Seq.prototype.cacheResult = function() {
if (!this._cache && this.__iterateUncached) {
this._cache = this.entrySeq().toArray();
this.size = this._cache.length;
}
return this;
};
// abstract __iterateUncached(fn, reverse)
Seq.prototype.__iterate = function(fn, reverse) {
return seqIterate(this, fn, reverse, true);
};
// abstract __iteratorUncached(type, reverse)
Seq.prototype.__iterator = function(type, reverse) {
return seqIterator(this, type, reverse, true);
};
createClass(KeyedSeq, Seq);
function KeyedSeq(value) {
return value === null || value === undefined ?
emptySequence().toKeyedSeq() :
isIterable(value) ?
(isKeyed(value) ? value.toSeq() : value.fromEntrySeq()) :
keyedSeqFromValue(value);
}
KeyedSeq.prototype.toKeyedSeq = function() {
return this;
};
createClass(IndexedSeq, Seq);
function IndexedSeq(value) {
return value === null || value === undefined ? emptySequence() :
!isIterable(value) ? indexedSeqFromValue(value) :
isKeyed(value) ? value.entrySeq() : value.toIndexedSeq();
}
IndexedSeq.of = function(/*...values*/) {
return IndexedSeq(arguments);
};
IndexedSeq.prototype.toIndexedSeq = function() {
return this;
};
IndexedSeq.prototype.toString = function() {
return this.__toString('Seq [', ']');
};
IndexedSeq.prototype.__iterate = function(fn, reverse) {
return seqIterate(this, fn, reverse, false);
};
IndexedSeq.prototype.__iterator = function(type, reverse) {
return seqIterator(this, type, reverse, false);
};
createClass(SetSeq, Seq);
function SetSeq(value) {
return (
value === null || value === undefined ? emptySequence() :
!isIterable(value) ? indexedSeqFromValue(value) :
isKeyed(value) ? value.entrySeq() : value
).toSetSeq();
}
SetSeq.of = function(/*...values*/) {
return SetSeq(arguments);
};
SetSeq.prototype.toSetSeq = function() {
return this;
};
Seq.isSeq = isSeq;
Seq.Keyed = KeyedSeq;
Seq.Set = SetSeq;
Seq.Indexed = IndexedSeq;
var IS_SEQ_SENTINEL = '@@__IMMUTABLE_SEQ__@@';
Seq.prototype[IS_SEQ_SENTINEL] = true;
createClass(ArraySeq, IndexedSeq);
function ArraySeq(array) {
this._array = array;
this.size = array.length;
}
ArraySeq.prototype.get = function(index, notSetValue) {
return this.has(index) ? this._array[wrapIndex(this, index)] : notSetValue;
};
ArraySeq.prototype.__iterate = function(fn, reverse) {
var array = this._array;
var maxIndex = array.length - 1;
for (var ii = 0; ii <= maxIndex; ii++) {
if (fn(array[reverse ? maxIndex - ii : ii], ii, this) === false) {
return ii + 1;
}
}
return ii;
};
ArraySeq.prototype.__iterator = function(type, reverse) {
var array = this._array;
var maxIndex = array.length - 1;
var ii = 0;
return new Iterator(function()
{return ii > maxIndex ?
iteratorDone() :
iteratorValue(type, ii, array[reverse ? maxIndex - ii++ : ii++])}
);
};
createClass(ObjectSeq, KeyedSeq);
function ObjectSeq(object) {
var keys = Object.keys(object);
this._object = object;
this._keys = keys;
this.size = keys.length;
}
ObjectSeq.prototype.get = function(key, notSetValue) {
if (notSetValue !== undefined && !this.has(key)) {
return notSetValue;
}
return this._object[key];
};
ObjectSeq.prototype.has = function(key) {
return this._object.hasOwnProperty(key);
};
ObjectSeq.prototype.__iterate = function(fn, reverse) {
var object = this._object;
var keys = this._keys;
var maxIndex = keys.length - 1;
for (var ii = 0; ii <= maxIndex; ii++) {
var key = keys[reverse ? maxIndex - ii : ii];
if (fn(object[key], key, this) === false) {
return ii + 1;
}
}
return ii;
};
ObjectSeq.prototype.__iterator = function(type, reverse) {
var object = this._object;
var keys = this._keys;
var maxIndex = keys.length - 1;
var ii = 0;
return new Iterator(function() {
var key = keys[reverse ? maxIndex - ii : ii];
return ii++ > maxIndex ?
iteratorDone() :
iteratorValue(type, key, object[key]);
});
};
ObjectSeq.prototype[IS_ORDERED_SENTINEL] = true;
createClass(IterableSeq, IndexedSeq);
function IterableSeq(iterable) {
this._iterable = iterable;
this.size = iterable.length || iterable.size;
}
IterableSeq.prototype.__iterateUncached = function(fn, reverse) {
if (reverse) {
return this.cacheResult().__iterate(fn, reverse);
}
var iterable = this._iterable;
var iterator = getIterator(iterable);
var iterations = 0;
if (isIterator(iterator)) {
var step;
while (!(step = iterator.next()).done) {
if (fn(step.value, iterations++, this) === false) {
break;
}
}
}
return iterations;
};
IterableSeq.prototype.__iteratorUncached = function(type, reverse) {
if (reverse) {
return this.cacheResult().__iterator(type, reverse);
}
var iterable = this._iterable;
var iterator = getIterator(iterable);
if (!isIterator(iterator)) {
return new Iterator(iteratorDone);
}
var iterations = 0;
return new Iterator(function() {
var step = iterator.next();
return step.done ? step : iteratorValue(type, iterations++, step.value);
});
};
createClass(IteratorSeq, IndexedSeq);
function IteratorSeq(iterator) {
this._iterator = iterator;
this._iteratorCache = [];
}
IteratorSeq.prototype.__iterateUncached = function(fn, reverse) {
if (reverse) {
return this.cacheResult().__iterate(fn, reverse);
}
var iterator = this._iterator;
var cache = this._iteratorCache;
var iterations = 0;
while (iterations < cache.length) {
if (fn(cache[iterations], iterations++, this) === false) {
return iterations;
}
}
var step;
while (!(step = iterator.next()).done) {
var val = step.value;
cache[iterations] = val;
if (fn(val, iterations++, this) === false) {
break;
}
}
return iterations;
};
IteratorSeq.prototype.__iteratorUncached = function(type, reverse) {
if (reverse) {
return this.cacheResult().__iterator(type, reverse);
}
var iterator = this._iterator;
var cache = this._iteratorCache;
var iterations = 0;
return new Iterator(function() {
if (iterations >= cache.length) {
var step = iterator.next();
if (step.done) {
return step;
}
cache[iterations] = step.value;
}
return iteratorValue(type, iterations, cache[iterations++]);
});
};
// # pragma Helper functions
function isSeq(maybeSeq) {
return !!(maybeSeq && maybeSeq[IS_SEQ_SENTINEL]);
}
var EMPTY_SEQ;
function emptySequence() {
return EMPTY_SEQ || (EMPTY_SEQ = new ArraySeq([]));
}
function keyedSeqFromValue(value) {
var seq =
Array.isArray(value) ? new ArraySeq(value).fromEntrySeq() :
isIterator(value) ? new IteratorSeq(value).fromEntrySeq() :
hasIterator(value) ? new IterableSeq(value).fromEntrySeq() :
typeof value === 'object' ? new ObjectSeq(value) :
undefined;
if (!seq) {
throw new TypeError(
'Expected Array or iterable object of [k, v] entries, '+
'or keyed object: ' + value
);
}
return seq;
}
function indexedSeqFromValue(value) {
var seq = maybeIndexedSeqFromValue(value);
if (!seq) {
throw new TypeError(
'Expected Array or iterable object of values: ' + value
);
}
return seq;
}
function seqFromValue(value) {
var seq = maybeIndexedSeqFromValue(value) ||
(typeof value === 'object' && new ObjectSeq(value));
if (!seq) {
throw new TypeError(
'Expected Array or iterable object of values, or keyed object: ' + value
);
}
return seq;
}
function maybeIndexedSeqFromValue(value) {
return (
isArrayLike(value) ? new ArraySeq(value) :
isIterator(value) ? new IteratorSeq(value) :
hasIterator(value) ? new IterableSeq(value) :
undefined
);
}
function seqIterate(seq, fn, reverse, useKeys) {
var cache = seq._cache;
if (cache) {
var maxIndex = cache.length - 1;
for (var ii = 0; ii <= maxIndex; ii++) {
var entry = cache[reverse ? maxIndex - ii : ii];
if (fn(entry[1], useKeys ? entry[0] : ii, seq) === false) {
return ii + 1;
}
}
return ii;
}
return seq.__iterateUncached(fn, reverse);
}
function seqIterator(seq, type, reverse, useKeys) {
var cache = seq._cache;
if (cache) {
var maxIndex = cache.length - 1;
var ii = 0;
return new Iterator(function() {
var entry = cache[reverse ? maxIndex - ii : ii];
return ii++ > maxIndex ?
iteratorDone() :
iteratorValue(type, useKeys ? entry[0] : ii - 1, entry[1]);
});
}
return seq.__iteratorUncached(type, reverse);
}
function fromJS(json, converter) {
return converter ?
fromJSWith(converter, json, '', {'': json}) :
fromJSDefault(json);
}
function fromJSWith(converter, json, key, parentJSON) {
if (Array.isArray(json)) {
return converter.call(parentJSON, key, IndexedSeq(json).map(function(v, k) {return fromJSWith(converter, v, k, json)}));
}
if (isPlainObj(json)) {
return converter.call(parentJSON, key, KeyedSeq(json).map(function(v, k) {return fromJSWith(converter, v, k, json)}));
}
return json;
}
function fromJSDefault(json) {
if (Array.isArray(json)) {
return IndexedSeq(json).map(fromJSDefault).toList();
}
if (isPlainObj(json)) {
return KeyedSeq(json).map(fromJSDefault).toMap();
}
return json;
}
function isPlainObj(value) {
return value && (value.constructor === Object || value.constructor === undefined);
}
/**
* An extension of the "same-value" algorithm as [described for use by ES6 Map
* and Set](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map#Key_equality)
*
* NaN is considered the same as NaN, however -0 and 0 are considered the same
* value, which is different from the algorithm described by
* [`Object.is`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is).
*
* This is extended further to allow Objects to describe the values they
* represent, by way of `valueOf` or `equals` (and `hashCode`).
*
* Note: because of this extension, the key equality of Immutable.Map and the
* value equality of Immutable.Set will differ from ES6 Map and Set.
*
* ### Defining custom values
*
* The easiest way to describe the value an object represents is by implementing
* `valueOf`. For example, `Date` represents a value by returning a unix
* timestamp for `valueOf`:
*
* var date1 = new Date(1234567890000); // Fri Feb 13 2009 ...
* var date2 = new Date(1234567890000);
* date1.valueOf(); // 1234567890000
* assert( date1 !== date2 );
* assert( Immutable.is( date1, date2 ) );
*
* Note: overriding `valueOf` may have other implications if you use this object
* where JavaScript expects a primitive, such as implicit string coercion.
*
* For more complex types, especially collections, implementing `valueOf` may
* not be performant. An alternative is to implement `equals` and `hashCode`.
*
* `equals` takes another object, presumably of similar type, and returns true
* if the it is equal. Equality is symmetrical, so the same result should be
* returned if this and the argument are flipped.
*
* assert( a.equals(b) === b.equals(a) );
*
* `hashCode` returns a 32bit integer number representing the object which will
* be used to determine how to store the value object in a Map or Set. You must
* provide both or neither methods, one must not exist without the other.
*
* Also, an important relationship between these methods must be upheld: if two
* values are equal, they *must* return the same hashCode. If the values are not
* equal, they might have the same hashCode; this is called a hash collision,
* and while undesirable for performance reasons, it is acceptable.
*
* if (a.equals(b)) {
* assert( a.hashCode() === b.hashCode() );
* }
*
* All Immutable collections implement `equals` and `hashCode`.
*
*/
function is(valueA, valueB) {
if (valueA === valueB || (valueA !== valueA && valueB !== valueB)) {
return true;
}
if (!valueA || !valueB) {
return false;
}
if (typeof valueA.valueOf === 'function' &&
typeof valueB.valueOf === 'function') {
valueA = valueA.valueOf();
valueB = valueB.valueOf();
if (valueA === valueB || (valueA !== valueA && valueB !== valueB)) {
return true;
}
if (!valueA || !valueB) {
return false;
}
}
if (typeof valueA.equals === 'function' &&
typeof valueB.equals === 'function' &&
valueA.equals(valueB)) {
return true;
}
return false;
}
function deepEqual(a, b) {
if (a === b) {
return true;
}
if (
!isIterable(b) ||
a.size !== undefined && b.size !== undefined && a.size !== b.size ||
a.__hash !== undefined && b.__hash !== undefined && a.__hash !== b.__hash ||
isKeyed(a) !== isKeyed(b) ||
isIndexed(a) !== isIndexed(b) ||
isOrdered(a) !== isOrdered(b)
) {
return false;
}
if (a.size === 0 && b.size === 0) {
return true;
}
var notAssociative = !isAssociative(a);
if (isOrdered(a)) {
var entries = a.entries();
return b.every(function(v, k) {
var entry = entries.next().value;
return entry && is(entry[1], v) && (notAssociative || is(entry[0], k));
}) && entries.next().done;
}
var flipped = false;
if (a.size === undefined) {
if (b.size === undefined) {
if (typeof a.cacheResult === 'function') {
a.cacheResult();
}
} else {
flipped = true;
var _ = a;
a = b;
b = _;
}
}
var allEqual = true;
var bSize = b.__iterate(function(v, k) {
if (notAssociative ? !a.has(v) :
flipped ? !is(v, a.get(k, NOT_SET)) : !is(a.get(k, NOT_SET), v)) {
allEqual = false;
return false;
}
});
return allEqual && a.size === bSize;
}
createClass(Repeat, IndexedSeq);
function Repeat(value, times) {
if (!(this instanceof Repeat)) {
return new Repeat(value, times);
}
this._value = value;
this.size = times === undefined ? Infinity : Math.max(0, times);
if (this.size === 0) {
if (EMPTY_REPEAT) {
return EMPTY_REPEAT;
}
EMPTY_REPEAT = this;
}
}
Repeat.prototype.toString = function() {
if (this.size === 0) {
return 'Repeat []';
}
return 'Repeat [ ' + this._value + ' ' + this.size + ' times ]';
};
Repeat.prototype.get = function(index, notSetValue) {
return this.has(index) ? this._value : notSetValue;
};
Repeat.prototype.includes = function(searchValue) {
return is(this._value, searchValue);
};
Repeat.prototype.slice = function(begin, end) {
var size = this.size;
return wholeSlice(begin, end, size) ? this :
new Repeat(this._value, resolveEnd(end, size) - resolveBegin(begin, size));
};
Repeat.prototype.reverse = function() {
return this;
};
Repeat.prototype.indexOf = function(searchValue) {
if (is(this._value, searchValue)) {
return 0;
}
return -1;
};
Repeat.prototype.lastIndexOf = function(searchValue) {
if (is(this._value, searchValue)) {
return this.size;
}
return -1;
};
Repeat.prototype.__iterate = function(fn, reverse) {
for (var ii = 0; ii < this.size; ii++) {
if (fn(this._value, ii, this) === false) {
return ii + 1;
}
}
return ii;
};
Repeat.prototype.__iterator = function(type, reverse) {var this$0 = this;
var ii = 0;
return new Iterator(function()
{return ii < this$0.size ? iteratorValue(type, ii++, this$0._value) : iteratorDone()}
);
};
Repeat.prototype.equals = function(other) {
return other instanceof Repeat ?
is(this._value, other._value) :
deepEqual(other);
};
var EMPTY_REPEAT;
function invariant(condition, error) {
if (!condition) throw new Error(error);
}
createClass(Range, IndexedSeq);
function Range(start, end, step) {
if (!(this instanceof Range)) {
return new Range(start, end, step);
}
invariant(step !== 0, 'Cannot step a Range by 0');
start = start || 0;
if (end === undefined) {
end = Infinity;
}
step = step === undefined ? 1 : Math.abs(step);
if (end < start) {
step = -step;
}
this._start = start;
this._end = end;
this._step = step;
this.size = Math.max(0, Math.ceil((end - start) / step - 1) + 1);
if (this.size === 0) {
if (EMPTY_RANGE) {
return EMPTY_RANGE;
}
EMPTY_RANGE = this;
}
}
Range.prototype.toString = function() {
if (this.size === 0) {
return 'Range []';
}
return 'Range [ ' +
this._start + '...' + this._end +
(this._step !== 1 ? ' by ' + this._step : '') +
' ]';
};
Range.prototype.get = function(index, notSetValue) {
return this.has(index) ?
this._start + wrapIndex(this, index) * this._step :
notSetValue;
};
Range.prototype.includes = function(searchValue) {
var possibleIndex = (searchValue - this._start) / this._step;
return possibleIndex >= 0 &&
possibleIndex < this.size &&
possibleIndex === Math.floor(possibleIndex);
};
Range.prototype.slice = function(begin, end) {
if (wholeSlice(begin, end, this.size)) {
return this;
}
begin = resolveBegin(begin, this.size);
end = resolveEnd(end, this.size);
if (end <= begin) {
return new Range(0, 0);
}
return new Range(this.get(begin, this._end), this.get(end, this._end), this._step);
};
Range.prototype.indexOf = function(searchValue) {
var offsetValue = searchValue - this._start;
if (offsetValue % this._step === 0) {
var index = offsetValue / this._step;
if (index >= 0 && index < this.size) {
return index
}
}
return -1;
};
Range.prototype.lastIndexOf = function(searchValue) {
return this.indexOf(searchValue);
};
Range.prototype.__iterate = function(fn, reverse) {
var maxIndex = this.size - 1;
var step = this._step;
var value = reverse ? this._start + maxIndex * step : this._start;
for (var ii = 0; ii <= maxIndex; ii++) {
if (fn(value, ii, this) === false) {
return ii + 1;
}
value += reverse ? -step : step;
}
return ii;
};
Range.prototype.__iterator = function(type, reverse) {
var maxIndex = this.size - 1;
var step = this._step;
var value = reverse ? this._start + maxIndex * step : this._start;
var ii = 0;
return new Iterator(function() {
var v = value;
value += reverse ? -step : step;
return ii > maxIndex ? iteratorDone() : iteratorValue(type, ii++, v);
});
};
Range.prototype.equals = function(other) {
return other instanceof Range ?
this._start === other._start &&
this._end === other._end &&
this._step === other._step :
deepEqual(this, other);
};
var EMPTY_RANGE;
createClass(Collection, Iterable);
function Collection() {
throw TypeError('Abstract');
}
createClass(KeyedCollection, Collection);function KeyedCollection() {}
createClass(IndexedCollection, Collection);function IndexedCollection() {}
createClass(SetCollection, Collection);function SetCollection() {}
Collection.Keyed = KeyedCollection;
Collection.Indexed = IndexedCollection;
Collection.Set = SetCollection;
var imul =
typeof Math.imul === 'function' && Math.imul(0xffffffff, 2) === -2 ?
Math.imul :
function imul(a, b) {
a = a | 0; // int
b = b | 0; // int
var c = a & 0xffff;
var d = b & 0xffff;
// Shift by 0 fixes the sign on the high part.
return (c * d) + ((((a >>> 16) * d + c * (b >>> 16)) << 16) >>> 0) | 0; // int
};
// v8 has an optimization for storing 31-bit signed numbers.
// Values which have either 00 or 11 as the high order bits qualify.
// This function drops the highest order bit in a signed number, maintaining
// the sign bit.
function smi(i32) {
return ((i32 >>> 1) & 0x40000000) | (i32 & 0xBFFFFFFF);
}
function hash(o) {
if (o === false || o === null || o === undefined) {
return 0;
}
if (typeof o.valueOf === 'function') {
o = o.valueOf();
if (o === false || o === null || o === undefined) {
return 0;
}
}
if (o === true) {
return 1;
}
var type = typeof o;
if (type === 'number') {
if (o !== o || o === Infinity) {
return 0;
}
var h = o | 0;
if (h !== o) {
h ^= o * 0xFFFFFFFF;
}
while (o > 0xFFFFFFFF) {
o /= 0xFFFFFFFF;
h ^= o;
}
return smi(h);
}
if (type === 'string') {
return o.length > STRING_HASH_CACHE_MIN_STRLEN ? cachedHashString(o) : hashString(o);
}
if (typeof o.hashCode === 'function') {
return o.hashCode();
}
if (type === 'object') {
return hashJSObj(o);
}
if (typeof o.toString === 'function') {
return hashString(o.toString());
}
throw new Error('Value type ' + type + ' cannot be hashed.');
}
function cachedHashString(string) {
var hash = stringHashCache[string];
if (hash === undefined) {
hash = hashString(string);
if (STRING_HASH_CACHE_SIZE === STRING_HASH_CACHE_MAX_SIZE) {
STRING_HASH_CACHE_SIZE = 0;
stringHashCache = {};
}
STRING_HASH_CACHE_SIZE++;
stringHashCache[string] = hash;
}
return hash;
}
// http://jsperf.com/hashing-strings
function hashString(string) {
// This is the hash from JVM
// The hash code for a string is computed as
// s[0] * 31 ^ (n - 1) + s[1] * 31 ^ (n - 2) + ... + s[n - 1],
// where s[i] is the ith character of the string and n is the length of
// the string. We "mod" the result to make it between 0 (inclusive) and 2^31
// (exclusive) by dropping high bits.
var hash = 0;
for (var ii = 0; ii < string.length; ii++) {
hash = 31 * hash + string.charCodeAt(ii) | 0;
}
return smi(hash);
}
function hashJSObj(obj) {
var hash;
if (usingWeakMap) {
hash = weakMap.get(obj);
if (hash !== undefined) {
return hash;
}
}
hash = obj[UID_HASH_KEY];
if (hash !== undefined) {
return hash;
}
if (!canDefineProperty) {
hash = obj.propertyIsEnumerable && obj.propertyIsEnumerable[UID_HASH_KEY];
if (hash !== undefined) {
return hash;
}
hash = getIENodeHash(obj);
if (hash !== undefined) {
return hash;
}
}
hash = ++objHashUID;
if (objHashUID & 0x40000000) {
objHashUID = 0;
}
if (usingWeakMap) {
weakMap.set(obj, hash);
} else if (isExtensible !== undefined && isExtensible(obj) === false) {
throw new Error('Non-extensible objects are not allowed as keys.');
} else if (canDefineProperty) {
Object.defineProperty(obj, UID_HASH_KEY, {
'enumerable': false,
'configurable': false,
'writable': false,
'value': hash
});
} else if (obj.propertyIsEnumerable !== undefined &&
obj.propertyIsEnumerable === obj.constructor.prototype.propertyIsEnumerable) {
// Since we can't define a non-enumerable property on the object
// we'll hijack one of the less-used non-enumerable properties to
// save our hash on it. Since this is a function it will not show up in
// `JSON.stringify` which is what we want.
obj.propertyIsEnumerable = function() {
return this.constructor.prototype.propertyIsEnumerable.apply(this, arguments);
};
obj.propertyIsEnumerable[UID_HASH_KEY] = hash;
} else if (obj.nodeType !== undefined) {
// At this point we couldn't get the IE `uniqueID` to use as a hash
// and we couldn't use a non-enumerable property to exploit the
// dontEnum bug so we simply add the `UID_HASH_KEY` on the node
// itself.
obj[UID_HASH_KEY] = hash;
} else {
throw new Error('Unable to set a non-enumerable property on object.');
}
return hash;
}
// Get references to ES5 object methods.
var isExtensible = Object.isExtensible;
// True if Object.defineProperty works as expected. IE8 fails this test.
var canDefineProperty = (function() {
try {
Object.defineProperty({}, '@', {});
return true;
} catch (e) {
return false;
}
}());
// IE has a `uniqueID` property on DOM nodes. We can construct the hash from it
// and avoid memory leaks from the IE cloneNode bug.
function getIENodeHash(node) {
if (node && node.nodeType > 0) {
switch (node.nodeType) {
case 1: // Element
return node.uniqueID;
case 9: // Document
return node.documentElement && node.documentElement.uniqueID;
}
}
}
// If possible, use a WeakMap.
var usingWeakMap = typeof WeakMap === 'function';
var weakMap;
if (usingWeakMap) {
weakMap = new WeakMap();
}
var objHashUID = 0;
var UID_HASH_KEY = '__immutablehash__';
if (typeof Symbol === 'function') {
UID_HASH_KEY = Symbol(UID_HASH_KEY);
}
var STRING_HASH_CACHE_MIN_STRLEN = 16;
var STRING_HASH_CACHE_MAX_SIZE = 255;
var STRING_HASH_CACHE_SIZE = 0;
var stringHashCache = {};
function assertNotInfinite(size) {
invariant(
size !== Infinity,
'Cannot perform this action with an infinite size.'
);
}
createClass(Map, KeyedCollection);
// @pragma Construction
function Map(value) {
return value === null || value === undefined ? emptyMap() :
isMap(value) && !isOrdered(value) ? value :
emptyMap().withMutations(function(map ) {
var iter = KeyedIterable(value);
assertNotInfinite(iter.size);
iter.forEach(function(v, k) {return map.set(k, v)});
});
}
Map.of = function() {var keyValues = SLICE$0.call(arguments, 0);
return emptyMap().withMutations(function(map ) {
for (var i = 0; i < keyValues.length; i += 2) {
if (i + 1 >= keyValues.length) {
throw new Error('Missing value for key: ' + keyValues[i]);
}
map.set(keyValues[i], keyValues[i + 1]);
}
});
};
Map.prototype.toString = function() {
return this.__toString('Map {', '}');
};
// @pragma Access
Map.prototype.get = function(k, notSetValue) {
return this._root ?
this._root.get(0, undefined, k, notSetValue) :
notSetValue;
};
// @pragma Modification
Map.prototype.set = function(k, v) {
return updateMap(this, k, v);
};
Map.prototype.setIn = function(keyPath, v) {
return this.updateIn(keyPath, NOT_SET, function() {return v});
};
Map.prototype.remove = function(k) {
return updateMap(this, k, NOT_SET);
};
Map.prototype.deleteIn = function(keyPath) {
return this.updateIn(keyPath, function() {return NOT_SET});
};
Map.prototype.update = function(k, notSetValue, updater) {
return arguments.length === 1 ?
k(this) :
this.updateIn([k], notSetValue, updater);
};
Map.prototype.updateIn = function(keyPath, notSetValue, updater) {
if (!updater) {
updater = notSetValue;
notSetValue = undefined;
}
var updatedValue = updateInDeepMap(
this,
forceIterator(keyPath),
notSetValue,
updater
);
return updatedValue === NOT_SET ? undefined : updatedValue;
};
Map.prototype.clear = function() {
if (this.size === 0) {
return this;
}
if (this.__ownerID) {
this.size = 0;
this._root = null;
this.__hash = undefined;
this.__altered = true;
return this;
}
return emptyMap();
};
// @pragma Composition
Map.prototype.merge = function(/*...iters*/) {
return mergeIntoMapWith(this, undefined, arguments);
};
Map.prototype.mergeWith = function(merger) {var iters = SLICE$0.call(arguments, 1);
return mergeIntoMapWith(this, merger, iters);
};
Map.prototype.mergeIn = function(keyPath) {var iters = SLICE$0.call(arguments, 1);
return this.updateIn(
keyPath,
emptyMap(),
function(m ) {return typeof m.merge === 'function' ?
m.merge.apply(m, iters) :
iters[iters.length - 1]}
);
};
Map.prototype.mergeDeep = function(/*...iters*/) {
return mergeIntoMapWith(this, deepMerger, arguments);
};
Map.prototype.mergeDeepWith = function(merger) {var iters = SLICE$0.call(arguments, 1);
return mergeIntoMapWith(this, deepMergerWith(merger), iters);
};
Map.prototype.mergeDeepIn = function(keyPath) {var iters = SLICE$0.call(arguments, 1);
return this.updateIn(
keyPath,
emptyMap(),
function(m ) {return typeof m.mergeDeep === 'function' ?
m.mergeDeep.apply(m, iters) :
iters[iters.length - 1]}
);
};
Map.prototype.sort = function(comparator) {
// Late binding
return OrderedMap(sortFactory(this, comparator));
};
Map.prototype.sortBy = function(mapper, comparator) {
// Late binding
return OrderedMap(sortFactory(this, comparator, mapper));
};
// @pragma Mutability
Map.prototype.withMutations = function(fn) {
var mutable = this.asMutable();
fn(mutable);
return mutable.wasAltered() ? mutable.__ensureOwner(this.__ownerID) : this;
};
Map.prototype.asMutable = function() {
return this.__ownerID ? this : this.__ensureOwner(new OwnerID());
};
Map.prototype.asImmutable = function() {
return this.__ensureOwner();
};
Map.prototype.wasAltered = function() {
return this.__altered;
};
Map.prototype.__iterator = function(type, reverse) {
return new MapIterator(this, type, reverse);
};
Map.prototype.__iterate = function(fn, reverse) {var this$0 = this;
var iterations = 0;
this._root && this._root.iterate(function(entry ) {
iterations++;
return fn(entry[1], entry[0], this$0);
}, reverse);
return iterations;
};
Map.prototype.__ensureOwner = function(ownerID) {
if (ownerID === this.__ownerID) {
return this;
}
if (!ownerID) {
this.__ownerID = ownerID;
this.__altered = false;
return this;
}
return makeMap(this.size, this._root, ownerID, this.__hash);
};
function isMap(maybeMap) {
return !!(maybeMap && maybeMap[IS_MAP_SENTINEL]);
}
Map.isMap = isMap;
var IS_MAP_SENTINEL = '@@__IMMUTABLE_MAP__@@';
var MapPrototype = Map.prototype;
MapPrototype[IS_MAP_SENTINEL] = true;
MapPrototype[DELETE] = MapPrototype.remove;
MapPrototype.removeIn = MapPrototype.deleteIn;
// #pragma Trie Nodes
function ArrayMapNode(ownerID, entries) {
this.ownerID = ownerID;
this.entries = entries;
}
ArrayMapNode.prototype.get = function(shift, keyHash, key, notSetValue) {
var entries = this.entries;
for (var ii = 0, len = entries.length; ii < len; ii++) {
if (is(key, entries[ii][0])) {
return entries[ii][1];
}
}
return notSetValue;
};
ArrayMapNode.prototype.update = function(ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
var removed = value === NOT_SET;
var entries = this.entries;
var idx = 0;
for (var len = entries.length; idx < len; idx++) {
if (is(key, entries[idx][0])) {
break;
}
}
var exists = idx < len;
if (exists ? entries[idx][1] === value : removed) {
return this;
}
SetRef(didAlter);
(removed || !exists) && SetRef(didChangeSize);
if (removed && entries.length === 1) {
return; // undefined
}
if (!exists && !removed && entries.length >= MAX_ARRAY_MAP_SIZE) {
return createNodes(ownerID, entries, key, value);
}
var isEditable = ownerID && ownerID === this.ownerID;
var newEntries = isEditable ? entries : arrCopy(entries);
if (exists) {
if (removed) {
idx === len - 1 ? newEntries.pop() : (newEntries[idx] = newEntries.pop());
} else {
newEntries[idx] = [key, value];
}
} else {
newEntries.push([key, value]);
}
if (isEditable) {
this.entries = newEntries;
return this;
}
return new ArrayMapNode(ownerID, newEntries);
};
function BitmapIndexedNode(ownerID, bitmap, nodes) {
this.ownerID = ownerID;
this.bitmap = bitmap;
this.nodes = nodes;
}
BitmapIndexedNode.prototype.get = function(shift, keyHash, key, notSetValue) {
if (keyHash === undefined) {
keyHash = hash(key);
}
var bit = (1 << ((shift === 0 ? keyHash : keyHash >>> shift) & MASK));
var bitmap = this.bitmap;
return (bitmap & bit) === 0 ? notSetValue :
this.nodes[popCount(bitmap & (bit - 1))].get(shift + SHIFT, keyHash, key, notSetValue);
};
BitmapIndexedNode.prototype.update = function(ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
if (keyHash === undefined) {
keyHash = hash(key);
}
var keyHashFrag = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;
var bit = 1 << keyHashFrag;
var bitmap = this.bitmap;
var exists = (bitmap & bit) !== 0;
if (!exists && value === NOT_SET) {
return this;
}
var idx = popCount(bitmap & (bit - 1));
var nodes = this.nodes;
var node = exists ? nodes[idx] : undefined;
var newNode = updateNode(node, ownerID, shift + SHIFT, keyHash, key, value, didChangeSize, didAlter);
if (newNode === node) {
return this;
}
if (!exists && newNode && nodes.length >= MAX_BITMAP_INDEXED_SIZE) {
return expandNodes(ownerID, nodes, bitmap, keyHashFrag, newNode);
}
if (exists && !newNode && nodes.length === 2 && isLeafNode(nodes[idx ^ 1])) {
return nodes[idx ^ 1];
}
if (exists && newNode && nodes.length === 1 && isLeafNode(newNode)) {
return newNode;
}
var isEditable = ownerID && ownerID === this.ownerID;
var newBitmap = exists ? newNode ? bitmap : bitmap ^ bit : bitmap | bit;
var newNodes = exists ? newNode ?
setIn(nodes, idx, newNode, isEditable) :
spliceOut(nodes, idx, isEditable) :
spliceIn(nodes, idx, newNode, isEditable);
if (isEditable) {
this.bitmap = newBitmap;
this.nodes = newNodes;
return this;
}
return new BitmapIndexedNode(ownerID, newBitmap, newNodes);
};
function HashArrayMapNode(ownerID, count, nodes) {
this.ownerID = ownerID;
this.count = count;
this.nodes = nodes;
}
HashArrayMapNode.prototype.get = function(shift, keyHash, key, notSetValue) {
if (keyHash === undefined) {
keyHash = hash(key);
}
var idx = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;
var node = this.nodes[idx];
return node ? node.get(shift + SHIFT, keyHash, key, notSetValue) : notSetValue;
};
HashArrayMapNode.prototype.update = function(ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
if (keyHash === undefined) {
keyHash = hash(key);
}
var idx = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;
var removed = value === NOT_SET;
var nodes = this.nodes;
var node = nodes[idx];
if (removed && !node) {
return this;
}
var newNode = updateNode(node, ownerID, shift + SHIFT, keyHash, key, value, didChangeSize, didAlter);
if (newNode === node) {
return this;
}
var newCount = this.count;
if (!node) {
newCount++;
} else if (!newNode) {
newCount--;
if (newCount < MIN_HASH_ARRAY_MAP_SIZE) {
return packNodes(ownerID, nodes, newCount, idx);
}
}
var isEditable = ownerID && ownerID === this.ownerID;
var newNodes = setIn(nodes, idx, newNode, isEditable);
if (isEditable) {
this.count = newCount;
this.nodes = newNodes;
return this;
}
return new HashArrayMapNode(ownerID, newCount, newNodes);
};
function HashCollisionNode(ownerID, keyHash, entries) {
this.ownerID = ownerID;
this.keyHash = keyHash;
this.entries = entries;
}
HashCollisionNode.prototype.get = function(shift, keyHash, key, notSetValue) {
var entries = this.entries;
for (var ii = 0, len = entries.length; ii < len; ii++) {
if (is(key, entries[ii][0])) {
return entries[ii][1];
}
}
return notSetValue;
};
HashCollisionNode.prototype.update = function(ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
if (keyHash === undefined) {
keyHash = hash(key);
}
var removed = value === NOT_SET;
if (keyHash !== this.keyHash) {
if (removed) {
return this;
}
SetRef(didAlter);
SetRef(didChangeSize);
return mergeIntoNode(this, ownerID, shift, keyHash, [key, value]);
}
var entries = this.entries;
var idx = 0;
for (var len = entries.length; idx < len; idx++) {
if (is(key, entries[idx][0])) {
break;
}
}
var exists = idx < len;
if (exists ? entries[idx][1] === value : removed) {
return this;
}
SetRef(didAlter);
(removed || !exists) && SetRef(didChangeSize);
if (removed && len === 2) {
return new ValueNode(ownerID, this.keyHash, entries[idx ^ 1]);
}
var isEditable = ownerID && ownerID === this.ownerID;
var newEntries = isEditable ? entries : arrCopy(entries);
if (exists) {
if (removed) {
idx === len - 1 ? newEntries.pop() : (newEntries[idx] = newEntries.pop());
} else {
newEntries[idx] = [key, value];
}
} else {
newEntries.push([key, value]);
}
if (isEditable) {
this.entries = newEntries;
return this;
}
return new HashCollisionNode(ownerID, this.keyHash, newEntries);
};
function ValueNode(ownerID, keyHash, entry) {
this.ownerID = ownerID;
this.keyHash = keyHash;
this.entry = entry;
}
ValueNode.prototype.get = function(shift, keyHash, key, notSetValue) {
return is(key, this.entry[0]) ? this.entry[1] : notSetValue;
};
ValueNode.prototype.update = function(ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
var removed = value === NOT_SET;
var keyMatch = is(key, this.entry[0]);
if (keyMatch ? value === this.entry[1] : removed) {
return this;
}
SetRef(didAlter);
if (removed) {
SetRef(didChangeSize);
return; // undefined
}
if (keyMatch) {
if (ownerID && ownerID === this.ownerID) {
this.entry[1] = value;
return this;
}
return new ValueNode(ownerID, this.keyHash, [key, value]);
}
SetRef(didChangeSize);
return mergeIntoNode(this, ownerID, shift, hash(key), [key, value]);
};
// #pragma Iterators
ArrayMapNode.prototype.iterate =
HashCollisionNode.prototype.iterate = function (fn, reverse) {
var entries = this.entries;
for (var ii = 0, maxIndex = entries.length - 1; ii <= maxIndex; ii++) {
if (fn(entries[reverse ? maxIndex - ii : ii]) === false) {
return false;
}
}
}
BitmapIndexedNode.prototype.iterate =
HashArrayMapNode.prototype.iterate = function (fn, reverse) {
var nodes = this.nodes;
for (var ii = 0, maxIndex = nodes.length - 1; ii <= maxIndex; ii++) {
var node = nodes[reverse ? maxIndex - ii : ii];
if (node && node.iterate(fn, reverse) === false) {
return false;
}
}
}
ValueNode.prototype.iterate = function (fn, reverse) {
return fn(this.entry);
}
createClass(MapIterator, Iterator);
function MapIterator(map, type, reverse) {
this._type = type;
this._reverse = reverse;
this._stack = map._root && mapIteratorFrame(map._root);
}
MapIterator.prototype.next = function() {
var type = this._type;
var stack = this._stack;
while (stack) {
var node = stack.node;
var index = stack.index++;
var maxIndex;
if (node.entry) {
if (index === 0) {
return mapIteratorValue(type, node.entry);
}
} else if (node.entries) {
maxIndex = node.entries.length - 1;
if (index <= maxIndex) {
return mapIteratorValue(type, node.entries[this._reverse ? maxIndex - index : index]);
}
} else {
maxIndex = node.nodes.length - 1;
if (index <= maxIndex) {
var subNode = node.nodes[this._reverse ? maxIndex - index : index];
if (subNode) {
if (subNode.entry) {
return mapIteratorValue(type, subNode.entry);
}
stack = this._stack = mapIteratorFrame(subNode, stack);
}
continue;
}
}
stack = this._stack = this._stack.__prev;
}
return iteratorDone();
};
function mapIteratorValue(type, entry) {
return iteratorValue(type, entry[0], entry[1]);
}
function mapIteratorFrame(node, prev) {
return {
node: node,
index: 0,
__prev: prev
};
}
function makeMap(size, root, ownerID, hash) {
var map = Object.create(MapPrototype);
map.size = size;
map._root = root;
map.__ownerID = ownerID;
map.__hash = hash;
map.__altered = false;
return map;
}
var EMPTY_MAP;
function emptyMap() {
return EMPTY_MAP || (EMPTY_MAP = makeMap(0));
}
function updateMap(map, k, v) {
var newRoot;
var newSize;
if (!map._root) {
if (v === NOT_SET) {
return map;
}
newSize = 1;
newRoot = new ArrayMapNode(map.__ownerID, [[k, v]]);
} else {
var didChangeSize = MakeRef(CHANGE_LENGTH);
var didAlter = MakeRef(DID_ALTER);
newRoot = updateNode(map._root, map.__ownerID, 0, undefined, k, v, didChangeSize, didAlter);
if (!didAlter.value) {
return map;
}
newSize = map.size + (didChangeSize.value ? v === NOT_SET ? -1 : 1 : 0);
}
if (map.__ownerID) {
map.size = newSize;
map._root = newRoot;
map.__hash = undefined;
map.__altered = true;
return map;
}
return newRoot ? makeMap(newSize, newRoot) : emptyMap();
}
function updateNode(node, ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
if (!node) {
if (value === NOT_SET) {
return node;
}
SetRef(didAlter);
SetRef(didChangeSize);
return new ValueNode(ownerID, keyHash, [key, value]);
}
return node.update(ownerID, shift, keyHash, key, value, didChangeSize, didAlter);
}
function isLeafNode(node) {
return node.constructor === ValueNode || node.constructor === HashCollisionNode;
}
function mergeIntoNode(node, ownerID, shift, keyHash, entry) {
if (node.keyHash === keyHash) {
return new HashCollisionNode(ownerID, keyHash, [node.entry, entry]);
}
var idx1 = (shift === 0 ? node.keyHash : node.keyHash >>> shift) & MASK;
var idx2 = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;
var newNode;
var nodes = idx1 === idx2 ?
[mergeIntoNode(node, ownerID, shift + SHIFT, keyHash, entry)] :
((newNode = new ValueNode(ownerID, keyHash, entry)), idx1 < idx2 ? [node, newNode] : [newNode, node]);
return new BitmapIndexedNode(ownerID, (1 << idx1) | (1 << idx2), nodes);
}
function createNodes(ownerID, entries, key, value) {
if (!ownerID) {
ownerID = new OwnerID();
}
var node = new ValueNode(ownerID, hash(key), [key, value]);
for (var ii = 0; ii < entries.length; ii++) {
var entry = entries[ii];
node = node.update(ownerID, 0, undefined, entry[0], entry[1]);
}
return node;
}
function packNodes(ownerID, nodes, count, excluding) {
var bitmap = 0;
var packedII = 0;
var packedNodes = new Array(count);
for (var ii = 0, bit = 1, len = nodes.length; ii < len; ii++, bit <<= 1) {
var node = nodes[ii];
if (node !== undefined && ii !== excluding) {
bitmap |= bit;
packedNodes[packedII++] = node;
}
}
return new BitmapIndexedNode(ownerID, bitmap, packedNodes);
}
function expandNodes(ownerID, nodes, bitmap, including, node) {
var count = 0;
var expandedNodes = new Array(SIZE);
for (var ii = 0; bitmap !== 0; ii++, bitmap >>>= 1) {
expandedNodes[ii] = bitmap & 1 ? nodes[count++] : undefined;
}
expandedNodes[including] = node;
return new HashArrayMapNode(ownerID, count + 1, expandedNodes);
}
function mergeIntoMapWith(map, merger, iterables) {
var iters = [];
for (var ii = 0; ii < iterables.length; ii++) {
var value = iterables[ii];
var iter = KeyedIterable(value);
if (!isIterable(value)) {
iter = iter.map(function(v ) {return fromJS(v)});
}
iters.push(iter);
}
return mergeIntoCollectionWith(map, merger, iters);
}
function deepMerger(existing, value, key) {
return existing && existing.mergeDeep && isIterable(value) ?
existing.mergeDeep(value) :
is(existing, value) ? existing : value;
}
function deepMergerWith(merger) {
return function(existing, value, key) {
if (existing && existing.mergeDeepWith && isIterable(value)) {
return existing.mergeDeepWith(merger, value);
}
var nextValue = merger(existing, value, key);
return is(existing, nextValue) ? existing : nextValue;
};
}
function mergeIntoCollectionWith(collection, merger, iters) {
iters = iters.filter(function(x ) {return x.size !== 0});
if (iters.length === 0) {
return collection;
}
if (collection.size === 0 && !collection.__ownerID && iters.length === 1) {
return collection.constructor(iters[0]);
}
return collection.withMutations(function(collection ) {
var mergeIntoMap = merger ?
function(value, key) {
collection.update(key, NOT_SET, function(existing )
{return existing === NOT_SET ? value : merger(existing, value, key)}
);
} :
function(value, key) {
collection.set(key, value);
}
for (var ii = 0; ii < iters.length; ii++) {
iters[ii].forEach(mergeIntoMap);
}
});
}
function updateInDeepMap(existing, keyPathIter, notSetValue, updater) {
var isNotSet = existing === NOT_SET;
var step = keyPathIter.next();
if (step.done) {
var existingValue = isNotSet ? notSetValue : existing;
var newValue = updater(existingValue);
return newValue === existingValue ? existing : newValue;
}
invariant(
isNotSet || (existing && existing.set),
'invalid keyPath'
);
var key = step.value;
var nextExisting = isNotSet ? NOT_SET : existing.get(key, NOT_SET);
var nextUpdated = updateInDeepMap(
nextExisting,
keyPathIter,
notSetValue,
updater
);
return nextUpdated === nextExisting ? existing :
nextUpdated === NOT_SET ? existing.remove(key) :
(isNotSet ? emptyMap() : existing).set(key, nextUpdated);
}
function popCount(x) {
x = x - ((x >> 1) & 0x55555555);
x = (x & 0x33333333) + ((x >> 2) & 0x33333333);
x = (x + (x >> 4)) & 0x0f0f0f0f;
x = x + (x >> 8);
x = x + (x >> 16);
return x & 0x7f;
}
function setIn(array, idx, val, canEdit) {
var newArray = canEdit ? array : arrCopy(array);
newArray[idx] = val;
return newArray;
}
function spliceIn(array, idx, val, canEdit) {
var newLen = array.length + 1;
if (canEdit && idx + 1 === newLen) {
array[idx] = val;
return array;
}
var newArray = new Array(newLen);
var after = 0;
for (var ii = 0; ii < newLen; ii++) {
if (ii === idx) {
newArray[ii] = val;
after = -1;
} else {
newArray[ii] = array[ii + after];
}
}
return newArray;
}
function spliceOut(array, idx, canEdit) {
var newLen = array.length - 1;
if (canEdit && idx === newLen) {
array.pop();
return array;
}
var newArray = new Array(newLen);
var after = 0;
for (var ii = 0; ii < newLen; ii++) {
if (ii === idx) {
after = 1;
}
newArray[ii] = array[ii + after];
}
return newArray;
}
var MAX_ARRAY_MAP_SIZE = SIZE / 4;
var MAX_BITMAP_INDEXED_SIZE = SIZE / 2;
var MIN_HASH_ARRAY_MAP_SIZE = SIZE / 4;
createClass(List, IndexedCollection);
// @pragma Construction
function List(value) {
var empty = emptyList();
if (value === null || value === undefined) {
return empty;
}
if (isList(value)) {
return value;
}
var iter = IndexedIterable(value);
var size = iter.size;
if (size === 0) {
return empty;
}
assertNotInfinite(size);
if (size > 0 && size < SIZE) {
return makeList(0, size, SHIFT, null, new VNode(iter.toArray()));
}
return empty.withMutations(function(list ) {
list.setSize(size);
iter.forEach(function(v, i) {return list.set(i, v)});
});
}
List.of = function(/*...values*/) {
return this(arguments);
};
List.prototype.toString = function() {
return this.__toString('List [', ']');
};
// @pragma Access
List.prototype.get = function(index, notSetValue) {
index = wrapIndex(this, index);
if (index >= 0 && index < this.size) {
index += this._origin;
var node = listNodeFor(this, index);
return node && node.array[index & MASK];
}
return notSetValue;
};
// @pragma Modification
List.prototype.set = function(index, value) {
return updateList(this, index, value);
};
List.prototype.remove = function(index) {
return !this.has(index) ? this :
index === 0 ? this.shift() :
index === this.size - 1 ? this.pop() :
this.splice(index, 1);
};
List.prototype.insert = function(index, value) {
return this.splice(index, 0, value);
};
List.prototype.clear = function() {
if (this.size === 0) {
return this;
}
if (this.__ownerID) {
this.size = this._origin = this._capacity = 0;
this._level = SHIFT;
this._root = this._tail = null;
this.__hash = undefined;
this.__altered = true;
return this;
}
return emptyList();
};
List.prototype.push = function(/*...values*/) {
var values = arguments;
var oldSize = this.size;
return this.withMutations(function(list ) {
setListBounds(list, 0, oldSize + values.length);
for (var ii = 0; ii < values.length; ii++) {
list.set(oldSize + ii, values[ii]);
}
});
};
List.prototype.pop = function() {
return setListBounds(this, 0, -1);
};
List.prototype.unshift = function(/*...values*/) {
var values = arguments;
return this.withMutations(function(list ) {
setListBounds(list, -values.length);
for (var ii = 0; ii < values.length; ii++) {
list.set(ii, values[ii]);
}
});
};
List.prototype.shift = function() {
return setListBounds(this, 1);
};
// @pragma Composition
List.prototype.merge = function(/*...iters*/) {
return mergeIntoListWith(this, undefined, arguments);
};
List.prototype.mergeWith = function(merger) {var iters = SLICE$0.call(arguments, 1);
return mergeIntoListWith(this, merger, iters);
};
List.prototype.mergeDeep = function(/*...iters*/) {
return mergeIntoListWith(this, deepMerger, arguments);
};
List.prototype.mergeDeepWith = function(merger) {var iters = SLICE$0.call(arguments, 1);
return mergeIntoListWith(this, deepMergerWith(merger), iters);
};
List.prototype.setSize = function(size) {
return setListBounds(this, 0, size);
};
// @pragma Iteration
List.prototype.slice = function(begin, end) {
var size = this.size;
if (wholeSlice(begin, end, size)) {
return this;
}
return setListBounds(
this,
resolveBegin(begin, size),
resolveEnd(end, size)
);
};
List.prototype.__iterator = function(type, reverse) {
var index = 0;
var values = iterateList(this, reverse);
return new Iterator(function() {
var value = values();
return value === DONE ?
iteratorDone() :
iteratorValue(type, index++, value);
});
};
List.prototype.__iterate = function(fn, reverse