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use crate::prelude::*;
pub type F32 = ordered_float::NotNan<f32>;
#[derive(Debug, PartialEq, Eq, Hash, Clone, Copy, SmartDefault)]
pub enum Unit {
#[default]
Zero,
Px(F32),
Em(F32),
Rem(F32),
Vw(F32),
Vh(F32),
Vmin(F32),
Vmax(F32),
Fr(F32),
Percent(F32),
}
#[rustfmt::skip]
impl std::fmt::Display for Unit {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match self {
Self::Zero => "0".fmt(f),
Self::Px(x) => write!(f, "{}px", x),
Self::Em(x) => write!(f, "{}em", x),
Self::Rem(x) => write!(f, "{}rem", x),
Self::Vw(x) => write!(f, "{}vw", x),
Self::Vh(x) => write!(f, "{}vh", x),
Self::Vmin(x) => write!(f, "{}vmin", x),
Self::Vmax(x) => write!(f, "{}vmax", x),
Self::Fr(x) => write!(f, "{}fr", x),
Self::Percent(x) => write!(f, "{}%", x),
}
}
}
#[rustfmt::skip]
#[macro_export]
macro_rules! unit {
(0) => { $crate::Unit::Zero };
(expr = ($($e:tt)+) $(px)?) => { $crate::Unit::Px( unsafe { $crate::units::F32::unchecked_new(($($e)+) as _) }) };
(expr = ($($e:tt)+) em) => { $crate::Unit::Em( unsafe { $crate::units::F32::unchecked_new(($($e)+) as _) }) };
(expr = ($($e:tt)+) rem) => { $crate::Unit::Rem( unsafe { $crate::units::F32::unchecked_new(($($e)+) as _) }) };
(expr = ($($e:tt)+) vw) => { $crate::Unit::Vw( unsafe { $crate::units::F32::unchecked_new(($($e)+) as _) }) };
(expr = ($($e:tt)+) vh) => { $crate::Unit::Vh( unsafe { $crate::units::F32::unchecked_new(($($e)+) as _) }) };
(expr = ($($e:tt)+) vmin) => { $crate::Unit::Vmin( unsafe { $crate::units::F32::unchecked_new(($($e)+) as _) }) };
(expr = ($($e:tt)+) vmax) => { $crate::Unit::Vmax( unsafe { $crate::units::F32::unchecked_new(($($e)+) as _) }) };
(expr = ($($e:tt)+) fr) => { $crate::Unit::Fr( unsafe { $crate::units::F32::unchecked_new(($($e)+) as _) }) };
(expr = ($($e:tt)+) %) => { $crate::Unit::Percent(unsafe { $crate::units::F32::unchecked_new(($($e)+) as _) }) };
(expr = ($($e:tt)*) $tt:tt $($rest:tt)*) => { $crate::unit!(expr = ($($e)* $tt) $($rest)*) };
($head:tt $($rest:tt)*) => { $crate::unit!(expr = ($head) $($rest)*) };
}