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StaticExportsDependency.js
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Thu, Feb 13, 13:37

StaticExportsDependency.js
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const makeSerializable = require("../util/makeSerializable");
const NullDependency = require("./NullDependency");
/** @typedef {import("../ChunkGraph")} ChunkGraph */
/** @typedef {import("../Dependency").ExportSpec} ExportSpec */
/** @typedef {import("../Dependency").ExportsSpec} ExportsSpec */
/** @typedef {import("../Dependency").UpdateHashContext} UpdateHashContext */
/** @typedef {import("../ModuleGraph")} ModuleGraph */
/** @typedef {import("../util/Hash")} Hash */
class StaticExportsDependency extends NullDependency {
/**
* @param {string[] | true} exports export names
* @param {boolean} canMangle true, if mangling exports names is allowed
*/
constructor(exports, canMangle) {
super();
this.exports = exports;
this.canMangle = canMangle;
}
get type() {
return "static exports";
}
/**
* Returns the exported names
* @param {ModuleGraph} moduleGraph module graph
* @returns {ExportsSpec | undefined} export names
*/
getExports(moduleGraph) {
return {
exports: this.exports,
canMangle: this.canMangle,
dependencies: undefined
};
}
/**
* Update the hash
* @param {Hash} hash hash to be updated
* @param {UpdateHashContext} context context
* @returns {void}
*/
updateHash(hash, context) {
hash.update(JSON.stringify(this.exports));
if (this.canMangle) hash.update("canMangle");
super.updateHash(hash, context);
}
serialize(context) {
const { write } = context;
write(this.exports);
write(this.canMangle);
super.serialize(context);
}
deserialize(context) {
const { read } = context;
this.exports = read();
this.canMangle = read();
super.deserialize(context);
}
}
makeSerializable(
StaticExportsDependency,
"webpack/lib/dependencies/StaticExportsDependency"
);
module.exports = StaticExportsDependency;

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