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RawDataUrlModule.js
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Sat, Jun 21, 14:15

RawDataUrlModule.js
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const { RawSource } = require("webpack-sources");
const Module = require("../Module");
const RuntimeGlobals = require("../RuntimeGlobals");
const makeSerializable = require("../util/makeSerializable");
/** @typedef {import("../../declarations/WebpackOptions").WebpackOptionsNormalized} WebpackOptions */
/** @typedef {import("../Compilation")} Compilation */
/** @typedef {import("../Dependency").UpdateHashContext} UpdateHashContext */
/** @typedef {import("../Module").CodeGenerationContext} CodeGenerationContext */
/** @typedef {import("../Module").CodeGenerationResult} CodeGenerationResult */
/** @typedef {import("../Module").NeedBuildContext} NeedBuildContext */
/** @typedef {import("../RequestShortener")} RequestShortener */
/** @typedef {import("../ResolverFactory").ResolverWithOptions} ResolverWithOptions */
/** @typedef {import("../WebpackError")} WebpackError */
/** @typedef {import("../util/Hash")} Hash */
/** @typedef {import("../util/fs").InputFileSystem} InputFileSystem */
const TYPES = new Set(["javascript"]);
class RawDataUrlModule extends Module {
/**
* @param {string} url raw url
* @param {string} identifier unique identifier
* @param {string=} readableIdentifier readable identifier
*/
constructor(url, identifier, readableIdentifier) {
super("asset/raw-data-url", null);
this.url = url;
this.urlBuffer = url ? Buffer.from(url) : undefined;
this.identifierStr = identifier || this.url;
this.readableIdentifierStr = readableIdentifier || this.identifierStr;
}
/**
* @returns {Set<string>} types available (do not mutate)
*/
getSourceTypes() {
return TYPES;
}
/**
* @returns {string} a unique identifier of the module
*/
identifier() {
return this.identifierStr;
}
/**
* @param {string=} type the source type for which the size should be estimated
* @returns {number} the estimated size of the module (must be non-zero)
*/
size(type) {
if (this.url === undefined) this.url = this.urlBuffer.toString();
return Math.max(1, this.url.length);
}
/**
* @param {RequestShortener} requestShortener the request shortener
* @returns {string} a user readable identifier of the module
*/
readableIdentifier(requestShortener) {
return requestShortener.shorten(this.readableIdentifierStr);
}
/**
* @param {NeedBuildContext} context context info
* @param {function((WebpackError | null)=, boolean=): void} callback callback function, returns true, if the module needs a rebuild
* @returns {void}
*/
needBuild(context, callback) {
return callback(null, !this.buildMeta);
}
/**
* @param {WebpackOptions} options webpack options
* @param {Compilation} compilation the compilation
* @param {ResolverWithOptions} resolver the resolver
* @param {InputFileSystem} fs the file system
* @param {function(WebpackError=): void} callback callback function
* @returns {void}
*/
build(options, compilation, resolver, fs, callback) {
this.buildMeta = {};
this.buildInfo = {
cacheable: true
};
callback();
}
/**
* @param {CodeGenerationContext} context context for code generation
* @returns {CodeGenerationResult} result
*/
codeGeneration(context) {
if (this.url === undefined) this.url = this.urlBuffer.toString();
const sources = new Map();
sources.set(
"javascript",
new RawSource(`module.exports = ${JSON.stringify(this.url)};`)
);
const data = new Map();
data.set("url", this.urlBuffer);
const runtimeRequirements = new Set();
runtimeRequirements.add(RuntimeGlobals.module);
return { sources, runtimeRequirements, data };
}
/**
* @param {Hash} hash the hash used to track dependencies
* @param {UpdateHashContext} context context
* @returns {void}
*/
updateHash(hash, context) {
hash.update(this.urlBuffer);
super.updateHash(hash, context);
}
serialize(context) {
const { write } = context;
write(this.urlBuffer);
write(this.identifierStr);
write(this.readableIdentifierStr);
super.serialize(context);
}
deserialize(context) {
const { read } = context;
this.urlBuffer = read();
this.identifierStr = read();
this.readableIdentifierStr = read();
super.deserialize(context);
}
}
makeSerializable(RawDataUrlModule, "webpack/lib/asset/RawDataUrlModule");
module.exports = RawDataUrlModule;

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