snapshot of https://github.com/ThreeDotsLabs/watermill.git (master, 2026-09-15; blobs > 131072B omitted)

internal/channel.go

@@ -0,0 +1,15 @@
+package internal
+
+// IsChannelClosed returns true if provided `chan struct{}` is closed.
+// IsChannelClosed panics if message is sent to this channel.
+func IsChannelClosed(channel chan struct{}) bool {
+	select {
+	case _, ok := <-channel:
+		if ok {
+			panic("received unexpected message")
+		}
+		return true
+	default:
+		return false
+	}
+}