go source for verification 2026-05-22

test/fixedbugs/issue25958.go

@@ -0,0 +1,17 @@
+// errorcheck
+
+// Copyright 2018 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 p
+
+// Verify that the "must be receive" error for "case done:" appears
+// on the line of the case clause, not the line of the done declaration.
+
+func f(done chan struct{}) {
+	select {
+	case done: // ERROR "must be receive|expected .*<-.* or .*=|must be send or receive|not used"
+	case (chan struct{})(done): // ERROR "must be receive|expected .*<-.* or .*=|must be send or receive"
+	}
+}