From d61c4d2aee9e96a3d0f2fef6105f86db5e42e758 Mon Sep 17 00:00:00 2001
From: SimplyY <8455579+SimplyY@users.noreply.github.com>
Date: Thu, 24 Sep 2020 10:03:14 +0800
Subject: [PATCH] fix: fix when initializer is undefined

related issue: https://github.com/styleguidist/react-docgen-typescript/issues/301
---
 src/parser.ts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/parser.ts b/src/parser.ts
index 9f656db2..4ebb0c5d 100644
--- a/src/parser.ts
+++ b/src/parser.ts
@@ -793,6 +793,9 @@ export class Parser {
 
         const defaultProps = possibleDefaultProps[0];
         let initializer = (defaultProps as ts.PropertyDeclaration).initializer;
+        if (!initializer) {
+          return res;
+        }
         let properties = (initializer as ts.ObjectLiteralExpression).properties;
 
         while (ts.isIdentifier(initializer as ts.Identifier)) {