/*! @license
* Shaka Player
* Copyright 2016 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
goog.provide('shaka.util.MapUtils');
/**
* @summary A set of map/object utility functions.
*/
shaka.util.MapUtils = class {
/**
* @param {!Object.<KEY, VALUE>} object
* @return {!Map.<KEY, VALUE>}
* @template KEY,VALUE
*/
static asMap(object) {
const map = new Map();
for (const key of Object.keys(object)) {
map.set(key, object[key]);
}
return map;
}
/**
* @param {!Map.<KEY, VALUE>} map
* @return {!Object.<KEY, VALUE>}
* @template KEY,VALUE
*/
static asObject(map) {
const obj = {};
map.forEach((value, key) => {
obj[key] = value;
});
return obj;
}
/**
* NOTE: This only works for simple value types and
* will not be accurate if map values are objects!
*
* @param {Map.<KEY, VALUE>} map1
* @param {Map.<KEY, VALUE>} map2
* @return {boolean}
* @template KEY,VALUE
*/
static hasSameElements(map1, map2) {
if (!map1 && !map2) {
return true;
} else if (map1 && !map2) {
return false;
} else if (map2 && !map1) {
return false;
}
if (map1.size != map2.size) {
return false;
}
for (const [key, val] of map1) {
if (!map2.has(key)) {
return false;
}
const val2 = map2.get(key);
if (val2 != val || (val2 == undefined)) {
return false;
}
}
return true;
}
};