Make app work again

src/app/storage/inner-node.ts

@@ -1,67 +0,0 @@
-import { Node } from './node';
-
-export abstract class InnerNode extends Node {
-  parent: Node;
-  nextVersion: this = null;
-
-  protected readonly children: Array<InnerNode> = [];
-
-  get latestVersion(): this {
-    let version;
-    for (version = this; version.nextVersion !== null; version = version.nextVersion) {
-      // pass
-    }
-    return version;
-  }
-
-  protected constructor(parent: Node) {
-    super();
-
-    parent.addChild({
-      value: this
-    });
-  }
-
-  map(map: (a: this) => void) {
-    return this.update((self: this) => this.cloneWithMap.call(self, map));
-  }
-
-  changeKey(update: { propertyName: string; value: any }): this {
-    return this.update((self: this) => this.cloneWithAdd.call(self, update));
-  }
-
-  changeValue(update: { oldValue: any; newValue: any }): this {
-    return this.update((self: this) => this.cloneWithModify.call(self, update));
-  }
-
-  addChild(update: { value: InnerNode }) {
-    super.addChild.call(this.latestVersion, update);
-  }
-
-  changeChild(update: { oldValue: InnerNode; newValue: InnerNode }) {
-    super.changeChild.call(this.latestVersion, update);
-  }
-
-  protected abstract cloneWithMap(map: (a: this) => void): this;
-  protected abstract cloneWithAdd(update: { value: any; propertyName: string }): this;
-  protected abstract cloneWithModify(update: { oldValue: any; newValue: any }): this;
-
-  private update(cloneMethod: (self: this) => this): this {
-    if (this.nextVersion !== null) {
-      this.latestVersion.update(cloneMethod);
-    }
-
-    const clone = cloneMethod(this);
-    for (let child of clone.children) {
-      child.parent = clone;
-    }
-
-    this.parent.changeChild({
-      oldValue: this,
-      newValue: clone
-    });
-
-    this.nextVersion = clone;
-    return clone;
-  }
-}