@itwin/clash-detection-client
Version:
Clash Detection client for the iTwin platform
65 lines • 2.58 kB
JavaScript
;
/*---------------------------------------------------------------------------------------------
* Copyright (c) Bentley Systems, Incorporated. All rights reserved.
* See LICENSE.md in the project root for license terms and full copyright notice.
*--------------------------------------------------------------------------------------------*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.take = exports.toArray = exports.flatten = exports.map = void 0;
/**
* Transforms each entity in the async iterator using the provided function.
* @param {AsyncIterableIterator<TSource>} iterator source entity iterator.
* @param {(entity: TSource) => TTarget} mapFunc function to transform elements from `TSource` to `TTarget`.
* @returns {AsyncIterableIterator<TTarget>} iterator of transformed elements.
*/
async function* map(iterator, mapFunc) {
for await (const entity of iterator) {
yield mapFunc(entity);
}
}
exports.map = map;
/**
* Transforms an iterator of entity pages into an iterator of entities.
* @param {AsyncIterableIterator<TEntity[]>} pagedIterator iterator of entity pages.
* @returns {AsyncIterableIterator<TEntity>} iterator of entities.
*/
async function* flatten(pagedIterator) {
for await (const entityChunk of pagedIterator) {
for (const entity of entityChunk) {
yield entity;
}
}
}
exports.flatten = flatten;
/**
* Loads all entities from an iterator into an array.
* @param {AsyncIterableIterator<TEntity>} iterator entity iterator.
* @returns {Promise<TEntity[]>} entity array.
*/
async function toArray(iterator) {
const result = [];
for await (const entity of iterator) {
result.push(entity);
}
return result;
}
exports.toArray = toArray;
/**
* Loads top n entities from an iterator into an array.
* @param {AsyncIterableIterator<TSource>} iterator source entity iterator.
* @param {number} entityCount number of entities to load.
* @returns {Promise<TEntity[]>} entity array that contains a number of top elements specified. If iterator contains
* less items than specified in `entityCount` length of the array will be less than `entityCount`. If
* iterator contains no entities the array will be empty.
*/
async function take(iterator, entityCount) {
const result = [];
for await (const entity of iterator) {
result.push(entity);
if (result.length === entityCount) {
break;
}
}
return result;
}
exports.take = take;
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