From f5f4751088bd40a8680899eefeb9854c8dbf4b33 Mon Sep 17 00:00:00 2001
From: Damian Gryski <damian@gryski.com>
Date: Thu, 1 Jun 2023 10:41:36 -0700
Subject: compiler,transform: fix for pointer-to-pointer type switches from
 @aykevl

---
 testdata/interface.go | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

(limited to 'testdata/interface.go')

diff --git a/testdata/interface.go b/testdata/interface.go
index 7820538a4..72cc76bce 100644
--- a/testdata/interface.go
+++ b/testdata/interface.go
@@ -113,6 +113,9 @@ func main() {
 	println("slept 1ms")
 	blockStatic(SleepBlocker(time.Millisecond))
 	println("slept 1ms")
+
+	// check that pointer-to-pointer type switches work
+	ptrptrswitch()
 }
 
 func printItf(val interface{}) {
@@ -312,3 +315,22 @@ func namedptr2() interface{} {
 	type Test byte
 	return (*Test)(nil)
 }
+
+func ptrptrswitch() {
+	identify(0)
+	identify(new(int))
+	identify(new(*int))
+}
+
+func identify(itf any) {
+	switch itf.(type) {
+	case int:
+		println("type is int")
+	case *int:
+		println("type is *int")
+	case **int:
+		println("type is **int")
+	default:
+		println("other type??")
+	}
+}
-- 
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