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