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92 lines
2.6 KiB
92 lines
2.6 KiB
4 weeks ago
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/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Sergey Melyukov @smelukov
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*/
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"use strict";
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const { RawSource } = require("webpack-sources");
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const ConcatenationScope = require("../ConcatenationScope");
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const Generator = require("../Generator");
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const RuntimeGlobals = require("../RuntimeGlobals");
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/** @typedef {import("webpack-sources").Source} Source */
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/** @typedef {import("../Generator").GenerateContext} GenerateContext */
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/** @typedef {import("../Module").ConcatenationBailoutReasonContext} ConcatenationBailoutReasonContext */
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/** @typedef {import("../NormalModule")} NormalModule */
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const TYPES = new Set(["javascript"]);
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class AssetSourceGenerator extends Generator {
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/**
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* @param {NormalModule} module module for which the code should be generated
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* @param {GenerateContext} generateContext context for generate
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* @returns {Source} generated code
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*/
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generate(
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module,
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{ concatenationScope, chunkGraph, runtimeTemplate, runtimeRequirements }
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) {
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const originalSource = module.originalSource();
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if (!originalSource) {
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return new RawSource("");
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}
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const content = originalSource.source();
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const encodedSource =
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typeof content === "string" ? content : content.toString("utf-8");
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let sourceContent;
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if (concatenationScope) {
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concatenationScope.registerNamespaceExport(
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ConcatenationScope.NAMESPACE_OBJECT_EXPORT
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);
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sourceContent = `${runtimeTemplate.supportsConst() ? "const" : "var"} ${
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ConcatenationScope.NAMESPACE_OBJECT_EXPORT
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} = ${JSON.stringify(encodedSource)};`;
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} else {
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runtimeRequirements.add(RuntimeGlobals.module);
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sourceContent = `${RuntimeGlobals.module}.exports = ${JSON.stringify(
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encodedSource
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)};`;
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}
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return new RawSource(sourceContent);
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}
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/**
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* @param {NormalModule} module module for which the bailout reason should be determined
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* @param {ConcatenationBailoutReasonContext} context context
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* @returns {string | undefined} reason why this module can't be concatenated, undefined when it can be concatenated
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*/
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getConcatenationBailoutReason(module, context) {
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return undefined;
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}
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/**
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* @param {NormalModule} module fresh module
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* @returns {Set<string>} available types (do not mutate)
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*/
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getTypes(module) {
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return TYPES;
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}
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/**
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* @param {NormalModule} module the module
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* @param {string=} type source type
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* @returns {number} estimate size of the module
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*/
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getSize(module, type) {
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const originalSource = module.originalSource();
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if (!originalSource) {
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return 0;
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}
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// Example: m.exports="abcd"
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return originalSource.size() + 12;
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}
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}
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module.exports = AssetSourceGenerator;
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