Struct FactId 

pub struct FactId(pub u32);

Identifier of a fact — the unit of memory.

Tuple Fields

0: u32

Implementations

impl FactId

pub const NONE: Self

The “no value” sentinel (u32::MAX).

pub fn is_none(self) -> bool

true when this is the Self::NONE sentinel.

pub fn some(self) -> Option<Self>

Some(self) for a real id, None for the sentinel.

pub fn from_opt(opt: Option<Self>) -> Self

Collapses an optional id back into the sentinel encoding.

Trait Implementations

impl Clone for FactId

fn clone(&self) -> FactId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for FactId

impl Debug for FactId

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

Formats the value using the given formatter.

impl Eq for FactId

impl Hash for FactId

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 Ord for FactId

fn cmp(&self, other: &FactId) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for FactId

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for FactId

fn partial_cmp(&self, other: &FactId) -> 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 StructuralPartialEq for FactId