From 1010f9178f09230b0bca3a7a63493fb0125ad10e Mon Sep 17 00:00:00 2001
From: Protobuf Team Bot <protobuf-github-bot@google.com>
Date: Tue, 16 May 2023 17:14:10 -0700
Subject: [PATCH] Add dummy return value to silence "function does not return a
 value in all control paths" warning. `ABSL_ASSUME(false)` should have been
 enough, but it doesn't seem to be on some toolchains.

PiperOrigin-RevId: 532618766
---
 src/google/protobuf/map_field.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/google/protobuf/map_field.cc b/src/google/protobuf/map_field.cc
index 24ce61d8e7..5eabf4a9d5 100644
--- a/src/google/protobuf/map_field.cc
+++ b/src/google/protobuf/map_field.cc
@@ -60,6 +60,7 @@ VariantKey RealKeyToVariantKey<MapKey>::operator()(const MapKey& value) const {
       return VariantKey(static_cast<uint64_t>(value.GetBoolValue()));
     default:
       ABSL_ASSUME(false);
+      return VariantKey(uint64_t{});
   }
 }