Function WriteArray

msgp/iter.go:44–65

WriteArray writes an array to the provided Writer. The writeFn parameter specifies the function to use to write each element of the array.

(w *Writer, a []T, writeFn func(T) error)

// WriteArray writes an array to the provided Writer.
// The writeFn parameter specifies the function to use to write each element of the array.
func WriteArray[T any](w *Writer, a []T, writeFn func(T) error) error {
	// Check if nil
	if a == nil {
		return w.WriteNil()
	}
	if uint64(len(a)) > math.MaxUint32 {
		return fmt.Errorf("array too large to encode: %d elements", len(a))
	}
	// Write array header
	err := w.WriteArrayHeader(uint32(len(a)))
	if err != nil {
		return err
	}
	// Write elements
	for _, v := range a {
		err = writeFn(v)
		if err != nil {
			return err
		}
	}
	return nil
}

// ReadMap returns an iterator that can be used to iterate over the elements
// of a map in the MessagePack data while being read by the provided Reader.