@barchart/common-js
Version:
Library of common JavaScript utilities
69 lines (67 loc) • 2.63 kB
JavaScript
var __create = Object.create;
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __getProtoOf = Object.getPrototypeOf;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
for (var name in all)
__defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
if (from && typeof from === "object" || typeof from === "function") {
for (let key of __getOwnPropNames(from))
if (!__hasOwnProp.call(to, key) && key !== except)
__defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
}
return to;
};
var __toESM = (mod, isNodeMode, target) => (target = mod != null ? __create(__getProtoOf(mod)) : {}, __copyProps(
// If the importer is in node compatibility mode or this is not an ESM
// file that has been converted to a CommonJS file using a Babel-
// compatible transform (i.e. "__esModule" has not been set), then set
// "default" to the CommonJS "module.exports" for node compatibility.
isNodeMode || !mod || !mod.__esModule ? __defProp(target, "default", { value: mod, enumerable: true }) : target,
mod
));
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
var mask_exports = {};
__export(mask_exports, {
add: () => add,
checkItem: () => checkItem,
getEmpty: () => getEmpty,
has: () => has,
remove: () => remove
});
module.exports = __toCommonJS(mask_exports);
var assert = __toESM(require("./assert.js"));
var is = __toESM(require("./is.js"));
function getEmpty() {
return 0;
}
function add(existing, itemToAdd) {
assert.argumentIsRequired(existing, "existing", Number);
assert.argumentIsRequired(itemToAdd, "itemToAdd", Number);
if (checkItem(itemToAdd)) {
return existing | itemToAdd;
} else {
return existing;
}
}
function remove(existing, itemToRemove) {
assert.argumentIsRequired(existing, "existing", Number);
assert.argumentIsRequired(itemToRemove, "itemToRemove", Number);
if (checkItem(itemToRemove)) {
return existing & ~itemToRemove;
} else {
return existing;
}
}
function has(existing, itemToCheck) {
assert.argumentIsRequired(existing, "existing", Number);
assert.argumentIsRequired(itemToCheck, "itemToCheck", Number);
return checkItem(itemToCheck) && (existing & itemToCheck) === itemToCheck;
}
function checkItem(itemToCheck) {
return is.number(itemToCheck) && (itemToCheck === 0 || (itemToCheck & ~itemToCheck + 1) === itemToCheck);
}