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/* * * * (c) 2020-2025 Highsoft AS * * License: www.highcharts.com/license * * !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!! * * Authors: * - Dawid Dragula * * */ /** * Utility functions for columns that can be either arrays or typed arrays. * @private */ var ColumnUtils; (function (ColumnUtils) { /* * * * Declarations * * */ /* * * * Functions * * */ /** * Sets the length of the column array. * * @param {DataTable.Column} column * Column to be modified. * * @param {number} length * New length of the column. * * @param {boolean} asSubarray * If column is a typed array, return a subarray instead of a new array. It * is faster `O(1)`, but the entire buffer will be kept in memory until all * views to it are destroyed. Default is `false`. * * @return {DataTable.Column} * Modified column. * * @private */ function setLength(column, length, asSubarray) { if (Array.isArray(column)) { column.length = length; return column; } return column[asSubarray ? 'subarray' : 'slice'](0, length); } ColumnUtils.setLength = setLength; /** * Splices a column array. * * @param {DataTable.Column} column * Column to be modified. * * @param {number} start * Index at which to start changing the array. * * @param {number} deleteCount * An integer indicating the number of old array elements to remove. * * @param {boolean} removedAsSubarray * If column is a typed array, return a subarray instead of a new array. It * is faster `O(1)`, but the entire buffer will be kept in memory until all * views to it are destroyed. Default is `true`. * * @param {Array<number>|TypedArray} items * The elements to add to the array, beginning at the start index. If you * don't specify any elements, `splice()` will only remove elements from the * array. * * @return {SpliceResult} * Object containing removed elements and the modified column. * * @private */ function splice(column, start, deleteCount, removedAsSubarray, items = []) { if (Array.isArray(column)) { if (!Array.isArray(items)) { items = Array.from(items); } return { removed: column.splice(start, deleteCount, ...items), array: column }; } const Constructor = Object.getPrototypeOf(column) .constructor; const removed = column[removedAsSubarray ? 'subarray' : 'slice'](start, start + deleteCount); const newLength = column.length - deleteCount + items.length; const result = new Constructor(newLength); result.set(column.subarray(0, start), 0); result.set(items, start); result.set(column.subarray(start + deleteCount), start + items.length); return { removed: removed, array: result }; } ColumnUtils.splice = splice; })(ColumnUtils || (ColumnUtils = {})); /* * * * Default Export * * */ export default ColumnUtils;