| // Copyright 2020 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| const AutomationNode = chrome.automation.AutomationNode; |
| |
| /** |
| * Saves computed values to avoid recalculating them repeatedly. |
| * |
| * Caches are single-use, and abandoned after the top-level question is answered |
| * (e.g. what are all the interesting descendants of this node?) |
| */ |
| export class SACache { |
| constructor() { |
| /** @private {!Map<!AutomationNode, boolean>} */ |
| this.isActionableMap_ = new Map(); |
| |
| /** @private {!Map<!AutomationNode, boolean>} */ |
| this.isGroupMap_ = new Map(); |
| |
| /** @private {!Map<!AutomationNode, boolean>} */ |
| this.isInterestingSubtreeMap_ = new Map(); |
| } |
| |
| /** @return {!Map<!AutomationNode, boolean>} */ |
| get isActionable() { |
| return this.isActionableMap_; |
| } |
| |
| /** @return {!Map<!AutomationNode, boolean>} */ |
| get isGroup() { |
| return this.isGroupMap_; |
| } |
| |
| /** @return {!Map<!AutomationNode, boolean>} */ |
| get isInterestingSubtree() { |
| return this.isInterestingSubtreeMap_; |
| } |
| } |
