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use internal;
use ordered_float::OrderedFloat;

#[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Copy, Clone)]
#[cfg_attr(feature = "serde_support", derive(Serialize, Deserialize))]
pub enum StyleUnit {
	UndefinedValue,
	Point(OrderedFloat<f32>),
	Percent(OrderedFloat<f32>),
	Auto,
}

impl From<StyleUnit> for internal::YGUnit {
	fn from(s: StyleUnit) -> internal::YGUnit {
		match s {
			StyleUnit::UndefinedValue => internal::YGUnit::YGUnitUndefined,
			StyleUnit::Point(_) => internal::YGUnit::YGUnitPoint,
			StyleUnit::Percent(_) => internal::YGUnit::YGUnitPercent,
			StyleUnit::Auto => internal::YGUnit::YGUnitAuto,
		}
	}
}

impl From<internal::YGValue> for StyleUnit {
	fn from(v: internal::YGValue) -> StyleUnit {
		match v.unit {
			internal::YGUnit::YGUnitUndefined => StyleUnit::UndefinedValue,
			internal::YGUnit::YGUnitPoint => StyleUnit::Point(OrderedFloat(v.value)),
			internal::YGUnit::YGUnitPercent => StyleUnit::Percent(OrderedFloat(v.value)),
			internal::YGUnit::YGUnitAuto => StyleUnit::Auto,
		}
	}
}