Handle case when value signature is undefined

sourcegraph · Apr 19, 2024 · 88633db · 88633db
1 parent 742ab0a
commit 88633db
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/FileIndexer.ts b/src/FileIndexer.ts
@@ -461,7 +461,7 @@ export class FileIndexer {
         (ts.isPropertyDeclaration(declaration) && declaration.questionToken) ||
         (ts.isPropertySignature(declaration) && declaration.questionToken)
       )
-      if (isOptional) {
+      if (isOptional && signature.value_signature.tpe !== undefined) {
         signature.value_signature.tpe = this.makeOptional(
           signature.value_signature.tpe
         )