func()

in decode.go [333:372]

• 30 lines of code
• 8 McCabe index (conditional complexity)

func (d *Decoder) decToDest(dest reflect.Value) error {
	destType := dest.Type()
	destRawType := UnpackPtrType(destType)

	// decode for special type, include map, slice, array.
	switch destRawType.Kind() {
	case reflect.Map:
		return d.decMapByValue(dest)
	case reflect.Slice, reflect.Array:
		m, err := d.decList(TAG_READ)
		if err != nil {
			if perrors.Is(err, io.EOF) {
				return nil
			}
			return perrors.WithStack(err)
		}

		return SetSlice(UnpackPtrValue(dest), m)
	}

	dec, err := d.DecodeValue()
	if err != nil {
		return perrors.Wrapf(err, "decToDest: %s", dest.Type().Name())
	}

	// if dec is nil, then return directly.
	if dec == nil {
		return nil
	}

	if ref, ok := dec.(*_refHolder); ok {
		return unpackRefHolder(UnpackPtrValue(dest), destRawType, ref)
	}

	decValue := EnsurePackValue(dec)

	SetValue(dest, decValue)

	return nil
}