go source for verification 2026-05-22

test/fixedbugs/bug195.go

@@ -0,0 +1,27 @@
+// errorcheck -lang=go1.17
+
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+type I1 interface{ I2 } // ERROR "interface"
+type I2 int
+
+type I3 interface{ int } // ERROR "interface"
+
+type S struct { // GC_ERROR "invalid recursive type"
+	x interface{ S } // GCCGO_ERROR "interface"
+}
+type I4 interface { // GC_ERROR "invalid recursive type: I4 refers to itself"
+	I4 // GCCGO_ERROR "interface"
+}
+
+type I5 interface { // GC_ERROR "invalid recursive type I5\n\tLINE:.* I5 refers to I6\n\tLINE+4:.* I6 refers to I5$"
+	I6
+}
+
+type I6 interface {
+	I5 // GCCGO_ERROR "interface"
+}