From 860b80c7ce1b39c4897f8c028b2b448902087d6b Mon Sep 17 00:00:00 2001
From: Alex Qiu <aqiu@pulumi.com>
Date: Thu, 1 Dec 2022 15:21:24 -0800
Subject: [PATCH] Update pkg/codegen/pcl/binder_schema.go

Co-authored-by: Ian Wahbe <ian@wahbe.com>
---
 pkg/codegen/pcl/binder_schema.go | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/pkg/codegen/pcl/binder_schema.go b/pkg/codegen/pcl/binder_schema.go
index bf859b7c3d85..1d07b86f6aea 100644
--- a/pkg/codegen/pcl/binder_schema.go
+++ b/pkg/codegen/pcl/binder_schema.go
@@ -572,11 +572,14 @@ func GenEnum(
 		} else {
 			unsafeEnum(from)
 			knownVal := strings.Split(strings.Split(known.GoString(), "(")[1], ")")[0]
-			return &hcl.Diagnostic{
+			diag := &hcl.Diagnostic{
 				Severity: hcl.DiagError,
 				Summary:  fmt.Sprintf("%v is not a valid value of the enum \"%v\"", knownVal, t.Token),
-				Detail:   fmt.Sprintf("Valid members are %v", listToString(enumMemberValues(t))),
 			}
+			if members := enumMemberValues(t); len(members) > 0 {
+				diag.Detail = fmt.Sprintf("Valid members are %v", listToString(enumMemberValues(t))),
+			}
+			return diag
 		}
 	} else {
 		unsafeEnum(from)