Struct Number 

pub struct Number {
    pub val: f64,
    pub unit: Option<String>,
}

Haystack Number — a 64-bit float with optional unit string.

Equality requires both val and unit to match. NaN == NaN (consistent with Hash, which uses to_bits()). Display uses compact format: no trailing zeros, unit appended directly.

Fields

val: f64

unit: Option<String>

Implementations

impl Number

pub fn new(val: f64, unit: Option<String>) -> Self

pub fn unitless(val: f64) -> Self

pub fn convert_to(&self, target_unit: &str) -> Result<Number, UnitError>

Convert this number to a different unit.

The target may be a unit name ("celsius") or symbol ("°C"). Returns a new Number with the converted value and the target unit’s canonical name.

Trait Implementations

impl Clone for Number

fn clone(&self) -> Number

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Number

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

Formats the value using the given formatter.

impl Display for Number

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

Formats the value using the given formatter.

impl From<Number> for Kind

fn from(n: Number) -> Self

Converts to this type from the input type.

impl Hash for Number

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Number

fn eq(&self, other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Number

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Eq for Number