From c768b4532faf14af20399d6895d81ae90c2bb4f9 Mon Sep 17 00:00:00 2001
From: Jes Cok <xigua67damn@gmail.com>
Date: Fri, 16 Feb 2024 20:57:36 +0800
Subject: [PATCH] reflect: make Value.Comparable return true for nil interface
 value

Fixes #65718
---
 src/reflect/all_test.go | 6 ++++++
 src/reflect/value.go    | 2 +-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/reflect/all_test.go b/src/reflect/all_test.go
index e77537c9a5..d339769b9a 100644
--- a/src/reflect/all_test.go
+++ b/src/reflect/all_test.go
@@ -8024,6 +8024,7 @@ func TestValue_Len(t *testing.T) {
 }
 
 func TestValue_Comparable(t *testing.T) {
+	var iNil interface{}
 	var a int
 	var s []int
 	var i interface{} = a
@@ -8035,6 +8036,11 @@ func TestValue_Comparable(t *testing.T) {
 		comparable bool
 		deref      bool
 	}{
+		{
+			ValueOf(&iNil).Elem(),
+			true,
+			false,
+		},
 		{
 			ValueOf(32),
 			true,
diff --git a/src/reflect/value.go b/src/reflect/value.go
index 60ba79a6e6..6cc1e7fad6 100644
--- a/src/reflect/value.go
+++ b/src/reflect/value.go
@@ -3413,7 +3413,7 @@ func (v Value) Comparable() bool {
 		return v.Type().Comparable()
 
 	case Interface:
-		return v.Elem().Comparable()
+		return v.IsNil() || v.Elem().Comparable()
 
 	case Struct:
 		for i := 0; i < v.NumField(); i++ {