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author | Niklas Halle <niklas@niklashalle.net> | 2020-10-31 20:44:44 +0100 |
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committer | Niklas Halle <niklas@niklashalle.net> | 2020-10-31 20:44:44 +0100 |
commit | 3e4fb93a594f11a80904653396698d6c70e07cb0 (patch) | |
tree | 95fe5198762a4af36c8d501ac11d7c3dbe89450d /src/metric/temperature.rs | |
download | units-main.tar.gz units-main.zip |
Initial public releasemain
Diffstat (limited to 'src/metric/temperature.rs')
-rw-r--r-- | src/metric/temperature.rs | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/src/metric/temperature.rs b/src/metric/temperature.rs new file mode 100644 index 0000000..06c1489 --- /dev/null +++ b/src/metric/temperature.rs @@ -0,0 +1,89 @@ +use std::fmt::{Display, Formatter, Result}; +use std::ops::{Add, Sub, AddAssign, SubAssign, Div, Mul, DivAssign, MulAssign}; + +use crate::metric::Unit; +use crate::metric::Primitive; + +use crate::declare_unit_basics; + +#[derive(Copy, Clone, Debug, PartialOrd, PartialEq)] +pub enum ThermodynamicTemperature { + Base(f64, fn(f64) -> f64, &'static str), + Canonical(f64), + Kelvin(f64), +} + +impl Unit<ThermodynamicTemperature> for ThermodynamicTemperature { + fn to_si_unit(&self) -> ThermodynamicTemperature { + match self { + ThermodynamicTemperature::Base(_, _, _) => self.clone(), + ThermodynamicTemperature::Canonical(value) => ThermodynamicTemperature::Base(value.clone(), |x| x, "K"), + ThermodynamicTemperature::Kelvin(value) => ThermodynamicTemperature::Base(value.clone(), |x| x, "K"), + } + } +} + +declare_unit_basics!(ThermodynamicTemperature); + +#[derive(Copy, Clone, Debug, PartialOrd, PartialEq)] +pub enum CelsiusTemperature { + Base(f64, fn(f64) -> f64, &'static str), + Canonical(f64), + Celsius(f64), + Fahrenheit(f64), +} + +impl Unit<CelsiusTemperature> for CelsiusTemperature { + fn to_si_unit(&self) -> CelsiusTemperature { + match self { + CelsiusTemperature::Base(_, _, _) => self.clone(), + CelsiusTemperature::Canonical(value) => CelsiusTemperature::Base(value.clone(), |x| x, "K"), + CelsiusTemperature::Celsius(value) => CelsiusTemperature::Base(value.clone(), |x| x, "°C"), + CelsiusTemperature::Fahrenheit(value) => CelsiusTemperature::Base((value - 32.0) / 1.8 , |x| x * 1.8 + 32.0, "°F"), + } + } +} + +declare_unit_basics!(CelsiusTemperature); + +/* --- temperature interoperability: C +/- K --- */ + +impl Add<ThermodynamicTemperature> for CelsiusTemperature { + type Output = CelsiusTemperature; + + fn add(self, rhs: ThermodynamicTemperature) -> Self::Output { + match self.to_si_unit() { + CelsiusTemperature::Base(value, from_si, symbol) => CelsiusTemperature::Base(value + rhs.to_si_primitive(), from_si, symbol), + _ => panic!("non si unit post to_si_unit() call") + } + } +} + +impl AddAssign<ThermodynamicTemperature> for CelsiusTemperature { + fn add_assign(&mut self, rhs: ThermodynamicTemperature) { + match self.to_si_unit() { + CelsiusTemperature::Base(value, from_si, symbol) => *self = CelsiusTemperature::Base(value + rhs.to_si_primitive(), from_si, symbol), + _ => panic!("non si unit post to_si_unit() call") + } + } +} + +impl Sub<ThermodynamicTemperature> for CelsiusTemperature { + type Output = CelsiusTemperature; + + fn sub(self, rhs: ThermodynamicTemperature) -> Self::Output { + match self.to_si_unit() { + CelsiusTemperature::Base(value, from_si, symbol) => CelsiusTemperature::Base(value + rhs.to_si_primitive(), from_si, symbol), + _ => panic!("non si unit post to_si_unit() call") + } + } +} + +impl SubAssign<ThermodynamicTemperature> for CelsiusTemperature { + fn sub_assign(&mut self, rhs: ThermodynamicTemperature) { + match self.to_si_unit() { + CelsiusTemperature::Base(value, from_si, symbol) => *self = CelsiusTemperature::Base(value - rhs.to_si_primitive(), from_si, symbol), + _ => panic!("non si unit post to_si_unit() call") + } + } +}
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