1 files changed, 36 insertions, 0 deletions
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..79c6e0d
--- /dev/null
+++ b/main.go
@@ -0,0 +1,36 @@
+package main
+
+import "fmt"
+
+type flyer interface {
+	fly() string
+	dive() string
+}
+
+type printer func(s string) string
+
+func (p printer) fly() string {
+	return p("I'm flying!")
+}
+
+func (p printer) dive() string {
+	return p("I'm diving!")
+}
+
+func printAndReturn(s string) string {
+	fmt.Println(s)
+	return s
+}
+
+type bird struct {
+	flyer
+}
+
+func main() {
+	bf := bird{
+		flyer: printer(printAndReturn),
+	}
+	bf.fly()
+
+	bs.fly()
+}