From fd0ba37df78fffc857c6b36df7205a445488ee11 Mon Sep 17 00:00:00 2001
From: arusakov <a_s_rusakov@mail.ru>
Date: Tue, 27 Feb 2018 16:17:17 +0300
Subject: [PATCH] bson: add cacheHexString boolean flag to ObjectID

---
 types/bson/bson-tests.ts | 3 +++
 types/bson/index.d.ts    | 4 ++++
 2 files changed, 7 insertions(+)

diff --git a/types/bson/bson-tests.ts b/types/bson/bson-tests.ts
index d18332fe9f..ebdd8a19c3 100644
--- a/types/bson/bson-tests.ts
+++ b/types/bson/bson-tests.ts
@@ -1,5 +1,8 @@
 import * as bson from 'bson';
 
+// enable hex string caching
+bson.ObjectID.cacheHexString = true
+
 let BSON = new bson.BSON();
 let Long = bson.Long;
 
diff --git a/types/bson/index.d.ts b/types/bson/index.d.ts
index 380e6e380c..817f50374d 100644
--- a/types/bson/index.d.ts
+++ b/types/bson/index.d.ts
@@ -135,6 +135,10 @@ export class ObjectID {
     constructor(id?: string | number | ObjectID);
     /** The generation time of this ObjectID instance */
     generationTime: number;
+    /**
+     * If true cache the hex string representation of ObjectID instance
+     */
+    static cacheHexString?: boolean;
     /**
      * Creates an ObjectID from a hex string representation of an ObjectID.
      * @param {string} hexString create a ObjectID from a passed in 24 byte hexstring.