Method enterModule

lib/optimize/ConcatenatedModule.js:1210–1324

(connection, runtimeCondition, nonDeferAccess)

		 * @returns {void}
		 */
		const enterModule = (connection, runtimeCondition, nonDeferAccess) => {
			const module = connection.module;
			if (!module) return;
			const existingEntry = existingEntries.get(module);
			if (
				existingEntry &&
				existingEntry.runtimeCondition === true &&
				existingEntry.nonDeferAccess === true
			) {
				return;
			}
			if (modulesSet.has(module)) {
				existingEntries.set(module, {
					runtimeCondition: true,
					nonDeferAccess: true
				});
				if (runtimeCondition !== true) {
					throw new Error(
						`Cannot runtime-conditional concatenate a module (${module.identifier()} in ${this.rootModule.identifier()}, ${runtimeConditionToString(
							runtimeCondition
						)}). This should not happen.`
					);
				}
				if (nonDeferAccess !== true) {
					throw new Error(
						`Cannot deferred concatenate a module (${module.identifier()} in ${this.rootModule.identifier()}. This should not happen.`
					);
				}
				const imports = getConcatenatedImports(module);
				for (const {
					connection,
					runtimeCondition,
					nonDeferAccess
				} of imports) {
					enterModule(connection, runtimeCondition, nonDeferAccess);
				}
				list.push({
					type: "concatenated",
					module: connection.module,
					runtimeCondition,
					nonDeferAccess
				});
			} else {
				/** @type {RuntimeSpec | boolean} */
				let reducedRuntimeCondition;
				/** @type {NonDeferAccess} */
				let reducedNonDeferAccess;
				if (existingEntry !== undefined) {
					reducedRuntimeCondition = subtractRuntimeCondition(
						runtimeCondition,
						existingEntry.runtimeCondition,
						runtime
					);
					reducedNonDeferAccess = subtractNonDeferAccess(
						nonDeferAccess,
						existingEntry.nonDeferAccess
					);
					if (