From 8ae3dc3d5e28d28247e88e3564d23b4e2c64f430 Mon Sep 17 00:00:00 2001
From: Rachel Fenichel <fenichel@google.com>
Date: Tue, 14 Jul 2020 17:02:28 -0600
Subject: [PATCH] Cleanup

---
 core/block.js             |  1 -
 core/connection.js        |  1 +
 core/connection_checks.js | 11 +++++++++++
 core/connection_db.js     |  2 --
 4 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/core/block.js b/core/block.js
index 9aabe7edb..ff513cd8b 100644
--- a/core/block.js
+++ b/core/block.js
@@ -32,7 +32,6 @@ goog.require('Blockly.utils.string');
 goog.require('Blockly.Workspace');
 
 goog.requireType('Blockly.IASTNodeLocation');
-goog.requireType('Blockly.connectionTypeChecker');
 
 
 /**
diff --git a/core/connection.js b/core/connection.js
index 92e578d11..ab4fec6bc 100644
--- a/core/connection.js
+++ b/core/connection.js
@@ -494,6 +494,7 @@ Blockly.Connection.prototype.targetBlock = function() {
  * @return {boolean} True if the connections share a type.
  */
 Blockly.Connection.prototype.checkType = function(otherConnection) {
+  // TODO (fenichel): Add deprecation warnings.
   return this.getConnectionTypeChecker().canConnect(this, otherConnection,
       false);
 };
diff --git a/core/connection_checks.js b/core/connection_checks.js
index 8b52697da..849f91979 100644
--- a/core/connection_checks.js
+++ b/core/connection_checks.js
@@ -1,3 +1,14 @@
+/**
+ * @license
+ * Copyright 2020 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/**
+ * @fileoverview An object that encapsulates logic for checking whether a potential
+ * connection is safe and valid.
+ * @author fenichel@google.com (Rachel Fenichel)
+ */
 'use strict';
 
 goog.provide('Blockly.ConnectionTypeChecker');
diff --git a/core/connection_db.js b/core/connection_db.js
index c45163509..104ad46b0 100644
--- a/core/connection_db.js
+++ b/core/connection_db.js
@@ -16,8 +16,6 @@ goog.provide('Blockly.ConnectionDB');
 
 goog.require('Blockly.RenderedConnection');
 
-goog.requireType('Blockly.ConnectionTypeChecker');
-
 
 /**
  * Database of connections.