func parseFlashArea()

in newt/flashmap/flashmap.go [85:159]
64 lines of code
16 McCabe index (conditional complexity)

func parseFlashArea(
	name string, ymlFields map[string]interface{}) (flash.FlashArea, error) {

	area := flash.FlashArea{
		Name: name,
	}

	idPresent := false
	devicePresent := false
	offsetPresent := false
	sizePresent := false

	var isSystem bool
	area.Id, isSystem = flash.SYSTEM_AREA_NAME_ID_MAP[name]

	var err error

	fields := cast.ToStringMapString(ymlFields)
	for k, v := range fields {
		switch k {
		case "user_id":
			if isSystem {
				return area, flashAreaErr(name,
					"system areas cannot specify a user ID")
			}
			userId, err := util.AtoiNoOct(v)
			if err != nil {
				return area, flashAreaErr(name, "invalid user id: %s", v)
			}
			area.Id = userId + flash.AREA_USER_ID_MIN
			idPresent = true

		case "device":
			area.Device, err = util.AtoiNoOct(v)
			if err != nil {
				return area, flashAreaErr(name, "invalid device: %s", v)
			}
			devicePresent = true

		case "offset":
			area.Offset, err = util.AtoiNoOct(v)
			if err != nil {
				return area, flashAreaErr(name, "invalid offset: %s", v)
			}
			offsetPresent = true

		case "size":
			area.Size, err = parseSize(v)
			if err != nil {
				return area, flashAreaErr(name, err.Error())
			}
			sizePresent = true

		default:
			util.StatusMessage(util.VERBOSITY_QUIET,
				"Warning: flash area \"%s\" contains unrecognized field: %s",
				name, k)
		}
	}

	if !isSystem && !idPresent {
		return area, flashAreaErr(name, "required field \"user_id\" missing")
	}
	if !devicePresent {
		return area, flashAreaErr(name, "required field \"device\" missing")
	}
	if !offsetPresent {
		return area, flashAreaErr(name, "required field \"offset\" missing")
	}
	if !sizePresent {
		return area, flashAreaErr(name, "required field \"size\" missing")
	}

	return area, nil
}