From f29ddd245fe4c6412da26552347e7da41804caab Mon Sep 17 00:00:00 2001
From: Winux <kk4201@126.com>
Date: Tue, 7 Jan 2025 17:38:51 +0800
Subject: [PATCH] fix: swagger crashed while using any Param/Query/Body
 decorator in a monorepo with pnpm.

Workaround: use ApiParam, ApiQuery, ApiBody instead.
---
 lib/services/parameter-metadata-accessor.ts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/services/parameter-metadata-accessor.ts b/lib/services/parameter-metadata-accessor.ts
index 951420e99..2ded40681 100644
--- a/lib/services/parameter-metadata-accessor.ts
+++ b/lib/services/parameter-metadata-accessor.ts
@@ -44,6 +44,9 @@ export class ParameterMetadataAccessor {
       instance,
       method.name
     );
+    if (!types?.length) {
+      return undefined;
+    }
     const routeArgsMetadata: ParamsMetadata =
       Reflect.getMetadata(
         ROUTE_ARGS_METADATA,