Method has

lib/optimize/ModuleConcatenationPlugin.js:969–971

* Returns true, when the module is in the module set. * @param {Module} module the module * @returns {boolean} true, when the module is in the module set

(module)

	 * @returns {boolean} true, when the module is in the module set
	 */
	has(module) {
		return this.modules.has(module);
	}

	isEmpty() {
		return this.modules.size === 1;