diff --git a/main.cogo.go b/main.cogo.go
new file mode 100755
index 0000000..c484d9b
--- /dev/null
+++ b/main.cogo.go
@@ -0,0 +1,38 @@
+// Code generated by 'cogo'; DO NOT EDIT.
+package main
+
+import "github.com/bloeys/cogo/cogo"
+
+func test_cogo(c *cogo.Coroutine[int, int]) (out int) {
+	switch c.State {
+	case 0:
+
+		println("Tick 1")
+		c.State++
+		return 1
+	case 1:
+
+		println("Tick 2")
+		c.State++
+		return 2
+	case 2:
+
+		println("Tick 3")
+		c.State++
+		return 3
+	case 3:
+
+		println("Tick 4")
+		c.State++
+		return 4
+	case 4:
+		c.State = -1
+
+		println("Tick before end")
+
+		return out
+	default:
+		c.State = -1
+		return
+	}
+}