Function EncoderToBytes

msgp/iter.go:371–386

EncoderToBytes allows augmenting any type with a MarshalMsg method into a method that reads from T and returns a []byte. Provide an instance of T. This value isn't used. See ReadArrayBytes or ReadMapBytes "struct" examples for usage.

(_ T)

// Provide an instance of T. This value isn't used.
// See ReadArrayBytes or ReadMapBytes "struct" examples for usage.
func EncoderToBytes[T any, _ FlexibleMarshaler[T]](_ T) func([]byte, T) []byte {
	return func(b []byte, t T) []byte {
		// Check if T implements Marshaler
		if marshaler, ok := any(t).(Marshaler); ok {
			b, _ = marshaler.MarshalMsg(b)
			return b
		}
		// Check if *T implements Marshaler
		if ptrMarshaler, ok := any(&t).(Marshaler); ok {
			b, _ = ptrMarshaler.MarshalMsg(b)
			return b
		}
		// The compiler should have asserted this.
		panic("type does not implement Marshaler")
	}
}