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AssetSourceGenerator.js
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Created
Fri, Feb 21, 11:17

AssetSourceGenerator.js
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Sergey Melyukov @smelukov
*/
"use strict";
const { RawSource } = require("webpack-sources");
const Generator = require("../Generator");
const RuntimeGlobals = require("../RuntimeGlobals");
/** @typedef {import("webpack-sources").Source} Source */
/** @typedef {import("../Generator").GenerateContext} GenerateContext */
/** @typedef {import("../NormalModule")} NormalModule */
const TYPES = new Set(["javascript"]);
class AssetSourceGenerator extends Generator {
/**
* @param {NormalModule} module module for which the code should be generated
* @param {GenerateContext} generateContext context for generate
* @returns {Source} generated code
*/
generate(module, { chunkGraph, runtimeTemplate, runtimeRequirements }) {
runtimeRequirements.add(RuntimeGlobals.module);
const originalSource = module.originalSource();
if (!originalSource) {
return new RawSource("");
}
const content = originalSource.source();
let encodedSource;
if (typeof content === "string") {
encodedSource = content;
} else {
encodedSource = content.toString("utf-8");
}
return new RawSource(
`${RuntimeGlobals.module}.exports = ${JSON.stringify(encodedSource)};`
);
}
/**
* @param {NormalModule} module fresh module
* @returns {Set<string>} available types (do not mutate)
*/
getTypes(module) {
return TYPES;
}
/**
* @param {NormalModule} module the module
* @param {string=} type source type
* @returns {number} estimate size of the module
*/
getSize(module, type) {
const originalSource = module.originalSource();
if (!originalSource) {
return 0;
}
// Example: m.exports="abcd"
return originalSource.size() + 12;
}
}
module.exports = AssetSourceGenerator;

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