From 6bdcee1d1bfaf4fe4bbc50ba6f96e7e88a16b7f7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=B7=B4=E9=87=8C=E5=88=87=E7=BD=97?=
 <ydfzgyj@baliqieluo.com>
Date: Thu, 26 Jul 2018 17:16:18 +0800
Subject: [PATCH] fix inheritance of BufferPacker class

---
 src/export/packer/buffer.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/export/packer/buffer.ts b/src/export/packer/buffer.ts
index c30fe202e6..9c46c4e166 100644
--- a/src/export/packer/buffer.ts
+++ b/src/export/packer/buffer.ts
@@ -1,8 +1,9 @@
 import { File } from "../../file";
 import { BufferStream } from "./buffer-stream";
 import { Compiler } from "./compiler";
+import { IPacker } from "./packer";
 
-export class BufferPacker {
+export class BufferPacker implements IPacker {
     private readonly packer: Compiler;
 
     constructor(file: File) {