From a91478f3fe10c895058785869f547d17c2fe9dd6 Mon Sep 17 00:00:00 2001
From: Jeremy John <jmjohn@riseup.net>
Date: Mon, 13 Jul 2020 10:33:47 -0500
Subject: [PATCH] fix: support compiler hooks like afterCompile where
 stats.toJson is undefined

---
 index.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/index.js b/index.js
index fae1266..a929f64 100644
--- a/index.js
+++ b/index.js
@@ -41,8 +41,8 @@ WebpackCopyOnPlugin.prototype.apply = function(compiler) {
     };
 
     compiler.plugin(eventHook, function(stats) {
-        const statsJson = stats.toJson();
-        const chunks = statsJson.chunks;
+        const statsJson = stats.toJson ? stats.toJson() : {};
+        const chunks = statsJson.chunks ? statsJson.chunks : [];
         chunks.forEach(function(chunk) {
             const chunkName = chunk.names[0];
             let mapping = mappings[chunkName];