GT2/Ejectable/node_modules/react-native/Libraries/Utilities/differ/matricesDiffer.js

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2021-08-16 00:14:59 +00:00
/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @format
*/
'use strict';
/**
* Unrolls an array comparison specially for matrices. Prioritizes
* checking of indices that are most likely to change so that the comparison
* bails as early as possible.
*
* @param {MatrixMath.Matrix} one First matrix.
* @param {MatrixMath.Matrix} two Second matrix.
* @return {boolean} Whether or not the two matrices differ.
*/
const matricesDiffer = function(one, two) {
if (one === two) {
return false;
}
return (
!one ||
!two ||
one[12] !== two[12] ||
one[13] !== two[13] ||
one[14] !== two[14] ||
one[5] !== two[5] ||
one[10] !== two[10] ||
one[0] !== two[0] ||
one[1] !== two[1] ||
one[2] !== two[2] ||
one[3] !== two[3] ||
one[4] !== two[4] ||
one[6] !== two[6] ||
one[7] !== two[7] ||
one[8] !== two[8] ||
one[9] !== two[9] ||
one[11] !== two[11] ||
one[15] !== two[15]
);
};
module.exports = matricesDiffer;