planning

node_modules/ol/src/Disposable.js

@@ -0,0 +1,36 @@
+/**
+ * @module ol/Disposable
+ */
+
+/**
+ * @classdesc
+ * Objects that need to clean up after themselves.
+ */
+class Disposable {
+  constructor() {
+    /**
+     * The object has already been disposed.
+     * @type {boolean}
+     * @protected
+     */
+    this.disposed = false;
+  }
+
+  /**
+   * Clean up.
+   */
+  dispose() {
+    if (!this.disposed) {
+      this.disposed = true;
+      this.disposeInternal();
+    }
+  }
+
+  /**
+   * Extension point for disposable objects.
+   * @protected
+   */
+  disposeInternal() {}
+}
+
+export default Disposable;