From f2db138906ec9f16c13748bb7b117079b6259676 Mon Sep 17 00:00:00 2001
From: Victor Chudnovsky <vchudnov@google.com>
Date: Thu, 10 Oct 2024 10:28:50 -0700
Subject: [PATCH] alert for unexpected format values when type==ANY

---
 .../proto3/DocumentToProtoConverter.java               | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/main/java/com/google/cloud/discotoproto3converter/proto3/DocumentToProtoConverter.java b/src/main/java/com/google/cloud/discotoproto3converter/proto3/DocumentToProtoConverter.java
index 2dfeb29..4c3cd87 100644
--- a/src/main/java/com/google/cloud/discotoproto3converter/proto3/DocumentToProtoConverter.java
+++ b/src/main/java/com/google/cloud/discotoproto3converter/proto3/DocumentToProtoConverter.java
@@ -545,10 +545,16 @@ private Field schemaToField(Schema sch, boolean optional, String debugPreviousPa
             valueType = Message.PRIMITIVES.get("google.protobuf.Value");
             this.usesStructProto = true;
             break;
-          case ANY:
+          case EMPTY:
             // intentional fall-through
-          default:
+          case ANY:
             valueType = Message.PRIMITIVES.get("google.protobuf.Any");
+            break;
+          default:
+            throw new IllegalStateException(
+                String.format(
+                    "unexpected 'format' value ('%s') when processing ANY type in schema %s",
+                    sch.format().toString(), debugCurrentPath));
         }
         break;
       case ARRAY: