Method _descriptors

src/core/core.plugins.js:89–99

* @param {Chart} chart * @private

(chart)

	 * @private
	 */
  _descriptors(chart) {
    if (this._cache) {
      return this._cache;
    }

    const descriptors = this._cache = this._createDescriptors(chart);

    this._notifyStateChanges(chart);

    return descriptors;
  }

  _createDescriptors(chart, all) {
    const config = chart && chart.config;