protocol/io.go: New OptionalFuncIO() method

Sandertv · Nov 19, 2023 · 2b48a19 · 2b48a19
1 parent 539a193
commit 2b48a19
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/minecraft/protocol/io.go b/minecraft/protocol/io.go
@@ -214,6 +214,15 @@ func OptionalFunc[T any](r IO, x *Optional[T], f func(*T)) any {
 	return x
 }
 
+// OptionalFuncIO reads/writes an Optional[T].
+func OptionalFuncIO[T any](r IO, x *Optional[T], f func(IO, *T)) any {
+	r.Bool(&x.set)
+	if x.set {
+		f(r, &x.val)
+	}
+	return x
+}
+
 // OptionalMarshaler reads/writes an Optional assuming *T implements Marshaler.
 func OptionalMarshaler[T any, A PtrMarshaler[T]](r IO, x *Optional[T]) {
 	r.Bool(&x.set)