Исходники и презентации

lessons/generics_and_reflection/constraint_with_method/main.go

@@ -0,0 +1,29 @@
+package main
+
+type Stringer interface {
+	String() string
+}
+
+func ToString[T Stringer](values ...T) []string {
+	result := make([]string, 0, len(values))
+	for idx := range values {
+		result = append(result, values[idx].String())
+	}
+
+	return result
+}
+
+type Data struct{}
+
+func (d Data) String() string {
+	return "string"
+}
+
+func main() {
+	data := Data{}
+	var idata Stringer = data
+
+	_ = ToString(data)
+	_ = ToString(idata)
+	_ = ToString(100)
+}