From e6b8ee645d0e9fa3cc6ff4bb30d2a15e2289a88b Mon Sep 17 00:00:00 2001
From: David Bonnet <david@bonnet.cc>
Date: Thu, 28 Apr 2022 12:51:48 +0200
Subject: [PATCH] fix: Does not handle undefined private properties

Fixes #609
---
 src/astring.js                     | 3 +++
 src/tests/fixtures/syntax/class.js | 1 +
 2 files changed, 4 insertions(+)

diff --git a/src/astring.js b/src/astring.js
index 01904720..9f54e1ea 100644
--- a/src/astring.js
+++ b/src/astring.js
@@ -826,6 +826,9 @@ export const GENERATOR = {
       state.write('static ')
     }
     this[node.key.type](node.key, state)
+    if (node.value == null) {
+      return
+    }
     state.write(' = ')
     this[node.value.type](node.value, state)
   },
diff --git a/src/tests/fixtures/syntax/class.js b/src/tests/fixtures/syntax/class.js
index fe9ee976..344c517c 100644
--- a/src/tests/fixtures/syntax/class.js
+++ b/src/tests/fixtures/syntax/class.js
@@ -51,6 +51,7 @@ class O {
   #a = 42
   #b() {}
   static #c = 'C'
+  #d
   static {
     const a = 3;
   }