1 files changed, 65 insertions, 0 deletions
diff --git a/node_modules/webpack/lib/wasm-sync/WebAssemblyUtils.js b/node_modules/webpack/lib/wasm-sync/WebAssemblyUtils.js
new file mode 100644
index 00000000..b68f851a
--- /dev/null
+++ b/node_modules/webpack/lib/wasm-sync/WebAssemblyUtils.js
@@ -0,0 +1,65 @@
+/*
+	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;