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authorFlorian Dold <florian.dold@gmail.com>2018-09-20 02:56:13 +0200
committerFlorian Dold <florian.dold@gmail.com>2018-09-20 02:56:13 +0200
commitbbff7403fbf46f9ad92240ac213df8d30ef31b64 (patch)
treec58400ec5124da1c7d56b01aea83309f80a56c3b /node_modules/fbjs/lib/equalsIterable.js.flow
parent003fb34971cf63466184351b4db5f7c67df4f444 (diff)
update packages
Diffstat (limited to 'node_modules/fbjs/lib/equalsIterable.js.flow')
-rw-r--r--node_modules/fbjs/lib/equalsIterable.js.flow65
1 files changed, 0 insertions, 65 deletions
diff --git a/node_modules/fbjs/lib/equalsIterable.js.flow b/node_modules/fbjs/lib/equalsIterable.js.flow
deleted file mode 100644
index 62034e298..000000000
--- a/node_modules/fbjs/lib/equalsIterable.js.flow
+++ /dev/null
@@ -1,65 +0,0 @@
-/**
- * Copyright (c) 2013-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.
- *
- * @providesModule equalsIterable
- * @flow
- */
-
-'use strict';
-
-const enumerate = require('./enumerate');
-
-/**
- * Checks if two iterables are equal. A custom areEqual function may be provided
- * as an optional third argument.
- */
-function equalsIterable<T>(one: Iterable<T>, two: Iterable<T>, areEqual?: ?(one: T, two: T) => boolean): boolean {
- if (one === two) {
- return true;
- }
-
- // We might be able to short circuit by using the size or length fields.
- var oneSize = maybeGetSize(one);
- var twoSize = maybeGetSize(two);
- if (oneSize != null && twoSize != null && oneSize !== twoSize) {
- return false;
- }
-
- // Otherwise use the iterators to check equality. Here we cannot use for-of
- // because we need to advance the iterators at the same time.
- var oneIterator = enumerate(one);
- var oneItem = oneIterator.next();
- var twoIterator = enumerate(two);
- var twoItem = twoIterator.next();
- var safeAreEqual = areEqual || referenceEquality;
- while (!(oneItem.done || twoItem.done)) {
- if (!safeAreEqual(oneItem.value, twoItem.value)) {
- return false;
- }
- oneItem = oneIterator.next();
- twoItem = twoIterator.next();
- }
- return oneItem.done === twoItem.done;
-}
-
-function maybeGetSize(o: any): ?number {
- if (o == null) {
- return null;
- }
- if (typeof o.size === 'number') {
- return o.size;
- }
- if (typeof o.length === 'number') {
- return o.length;
- }
- return null;
-}
-
-function referenceEquality<T>(one: T, two: T): boolean {
- return one === two;
-}
-
-module.exports = equalsIterable; \ No newline at end of file