From 1e131ea41b87a047acff3b1977d9fece8e25bfff Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C5=A0tefan=20Baebler?=
 <319826+stefanb@users.noreply.github.com>
Date: Thu, 25 Dec 2025 21:32:49 +0100
Subject: [PATCH] Support Go 1.26 and later with Swiss maps enabled by default
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In Go 1.26 and later Swiss maps are enabled by default and there is no more GOEXPERIMENT=noswissmap nor GOEXPERIMENT=swissmap flag either. See:
* https://github.com/golang/go/commit/2ae059ccaf982c3304fae0b48c1d78ad7192cbdd
* https://github.com/golang/go/issues/54766

Signed-off-by: Štefan Baebler <319826+stefanb@users.noreply.github.com>
---
 go/hack/ensure_swiss_map.go | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/go/hack/ensure_swiss_map.go b/go/hack/ensure_swiss_map.go
index b09bde1121c..f57d1fb3e1a 100644
--- a/go/hack/ensure_swiss_map.go
+++ b/go/hack/ensure_swiss_map.go
@@ -1,4 +1,4 @@
-//go:build !goexperiment.swissmap
+//go:build !goexperiment.swissmap && !go1.26
 
 /*
 Copyright (c) 2009 The Go Authors. All rights reserved.
@@ -32,7 +32,8 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 // This is invalid Go code, and it will fail to compile if you disable
 // Swiss maps when building Vitess. Our runtime memory accounting system
-// expects the map implementation in Go 1.24 to be Swiss.
+// expects the map implementation in Go 1.24 and 1.25 to be Swiss.
+// In Go 1.26 and later, Swiss maps are always enabled.
 
 package hack