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67 lines
1.8 KiB
JavaScript
67 lines
1.8 KiB
JavaScript
/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Tobias Koppers @sokra
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*/
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"use strict";
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const Template = require("../Template");
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const WebAssemblyImportDependency = require("../dependencies/WebAssemblyImportDependency");
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/** @typedef {import("../Module")} Module */
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/** @typedef {import("../ModuleGraph")} ModuleGraph */
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/**
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* @typedef {object} UsedWasmDependency
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* @property {WebAssemblyImportDependency} dependency the dependency
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* @property {string} name the export name
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* @property {string} module the module name
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*/
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const MANGLED_MODULE = "a";
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/**
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* @param {ModuleGraph} moduleGraph the module graph
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* @param {Module} module the module
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* @param {boolean | undefined} mangle mangle module and export names
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* @returns {UsedWasmDependency[]} used dependencies and (mangled) name
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*/
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const getUsedDependencies = (moduleGraph, module, mangle) => {
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/** @type {UsedWasmDependency[]} */
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const array = [];
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let importIndex = 0;
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for (const dep of module.dependencies) {
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if (dep instanceof WebAssemblyImportDependency) {
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if (
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dep.description.type === "GlobalType" ||
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moduleGraph.getModule(dep) === null
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) {
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continue;
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}
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const exportName = dep.name;
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// TODO add the following 3 lines when removing of ModuleExport is possible
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// const importedModule = moduleGraph.getModule(dep);
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// const usedName = importedModule && moduleGraph.getExportsInfo(importedModule).getUsedName(exportName, runtime);
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// if (usedName !== false) {
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if (mangle) {
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array.push({
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dependency: dep,
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name: Template.numberToIdentifier(importIndex++),
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module: MANGLED_MODULE
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});
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} else {
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array.push({
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dependency: dep,
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name: exportName,
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module: dep.request
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});
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}
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}
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}
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return array;
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};
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module.exports.MANGLED_MODULE = MANGLED_MODULE;
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module.exports.getUsedDependencies = getUsedDependencies;
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