Struct UnitRegistry 

pub struct UnitRegistry { /* private fields */ }

Unit registry: maps unit names to UnitInfo (dimension + scale).

Implementations

impl UnitRegistry

pub fn get_unit(&self, name: &UnitRef) -> Option<&UnitInfo>

Look up a unit by reference (bare or module-alias-qualified).

pub fn all_units( &self, ) -> impl Iterator<Item = (&UnitRef, &Dimension, &UnitScale)>

Iterate over all units: (reference, dimension, scale).

pub fn resolve_unit_expr( &self, expr: &UnitExpr, ) -> Result<(Dimension, f64), UnitResolveError>

Resolve a UnitExpr to its dimension and compound static scale factor.

Errors

Returns a UnitResolveError naming the unknown or dynamic-scale unit, or the exponent overflow.

pub fn resolve_unit_dimension( &self, expr: &UnitExpr, ) -> Result<Dimension, UnitResolveError>

Resolve a UnitExpr to its dimension only (ignoring scales).

Works for both static and dynamic units.

Errors

Returns a UnitResolveError naming the unknown unit, or the exponent overflow.

Trait Implementations

impl Clone for UnitRegistry

fn clone(&self) -> UnitRegistry

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for UnitRegistry

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.