go source for verification 2026-05-22

test/interface/recursive.go

@@ -0,0 +1,21 @@
+// compile
+
+// 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.
+
+// Check mutually recursive interfaces
+
+package recursive
+
+type I1 interface {
+	foo() I2
+}
+
+type I2 interface {
+	bar() I1
+}
+
+type T int
+func (t T) foo() I2 { return t }
+func (t T) bar() I1 { return t }