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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Florent Cailhol @ooflorent
*/
"use strict";
/** @typedef {import("../Module")} Module */
class DependencyReference {
// TODO webpack 5: module must be dynamic, you must pass a function returning a module
// This is needed to remove the hack in ConcatenatedModule
// The problem is that the `module` in Dependency could be replaced i. e. because of Scope Hoisting
/**
*
* @param {Module} module the referenced module
* @param {string[] | boolean} importedNames imported named from the module
* @param {boolean=} weak if this is a weak reference
* @param {number} order the order information or NaN if don't care
*/
constructor(module, importedNames, weak = false, order = NaN) {
// TODO webpack 5: make it a getter
this.module = module;
// true: full object
// false: only sideeffects/no export
// array of strings: the exports with this names
this.importedNames = importedNames;
this.weak = !!weak;
this.order = order;
}
/**
* @param {DependencyReference[]} array an array (will be modified)
* @returns {DependencyReference[]} the array again
*/
static sort(array) {
/** @type {WeakMap<DependencyReference, number>} */
const originalOrder = new WeakMap();
let i = 0;
for (const ref of array) {
originalOrder.set(ref, i++);
}
return array.sort((a, b) => {
const aOrder = a.order;
const bOrder = b.order;
if (isNaN(aOrder)) {
if (!isNaN(bOrder)) {
return 1;
}
} else {
if (isNaN(bOrder)) {
return -1;
}
if (aOrder !== bOrder) {
return aOrder - bOrder;
}
}
const aOrg = originalOrder.get(a);
const bOrg = originalOrder.get(b);
return aOrg - bOrg;
});
}
}
module.exports = DependencyReference;
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