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RequireHeaderDependency.js
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Sat, Feb 15, 13:22

RequireHeaderDependency.js
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const RuntimeGlobals = require("../RuntimeGlobals");
const makeSerializable = require("../util/makeSerializable");
const NullDependency = require("./NullDependency");
/** @typedef {import("webpack-sources").ReplaceSource} ReplaceSource */
/** @typedef {import("../Dependency")} Dependency */
/** @typedef {import("../DependencyTemplate").DependencyTemplateContext} DependencyTemplateContext */
class RequireHeaderDependency extends NullDependency {
constructor(range) {
super();
if (!Array.isArray(range)) throw new Error("range must be valid");
this.range = range;
}
serialize(context) {
const { write } = context;
write(this.range);
super.serialize(context);
}
static deserialize(context) {
const obj = new RequireHeaderDependency(context.read());
obj.deserialize(context);
return obj;
}
}
makeSerializable(
RequireHeaderDependency,
"webpack/lib/dependencies/RequireHeaderDependency"
);
RequireHeaderDependency.Template = class RequireHeaderDependencyTemplate extends (
NullDependency.Template
) {
/**
* @param {Dependency} dependency the dependency for which the template should be applied
* @param {ReplaceSource} source the current replace source which can be modified
* @param {DependencyTemplateContext} templateContext the context object
* @returns {void}
*/
apply(dependency, source, { runtimeRequirements }) {
const dep = /** @type {RequireHeaderDependency} */ (dependency);
runtimeRequirements.add(RuntimeGlobals.require);
source.replace(dep.range[0], dep.range[1] - 1, "__webpack_require__");
}
};
module.exports = RequireHeaderDependency;

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