et-nik / binngo

import (

	"io"

	"reflect"

	"github.com/et-nik/binngo/binn"

)

type valueDecoder struct {

	binnType binn.Type

}

func (vd *valueDecoder) DecodeValue(reader io.Reader, v interface{}) error {

	valuePtr := reflect.ValueOf(v)

	value := valuePtr.Elem()

	if !value.CanSet() {

		return ErrCantSetValue

	}

	bval, err := readValue(vd.binnType, reader)

	if err != nil {

		return err

	}

	converted, err := decodeItem(value.Type(), vd.binnType, bval)

	if err != nil {

		return err

	}

	if value.Kind() != reflect.ValueOf(converted).Kind() && value.Kind() != reflect.Interface {

		return &UnknownValueError{reflect.ValueOf(converted).Kind(), value.Kind()}

	}

	value.Set(reflect.ValueOf(converted))

	return nil

}