Struct Id 

pub struct Id<K: IdKind>(u32, PhantomData<K>);

One entity’s identity: a per-kind, document-global counter.

The wire form is the Display spelling — b7 — which is both what a human carries in their head and a legal JSON map key, so the entity tables can be objects keyed by id.

Tuple Fields

0: u32

1: PhantomData<K>

Implementations

impl<K: IdKind> Id<K>

pub const NULL: Id<K>

pub(crate) const fn from_raw(n: u32) -> Self

An id by its number, for fixtures and for a decoder that has already checked the mnemonic. Everything else takes ids from an Allocator, which is what keeps two live entities from sharing one.

Trait Implementations

impl<K: Clone + IdKind> Clone for Id<K>

fn clone(&self) -> Id<K>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<K: IdKind> Debug for Id<K>

The kind is a compile-time tag, so the derive would print it as PhantomData<…> in every ?id the editor’s mutation log carries.

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

Formats the value using the given formatter.

impl<K: IdKind> Default for Id<K>

NULL, never a minted id: the default is the meaningful zero (the document root / “none”), and minting stays an explicit client act.

fn default() -> Self

Returns the “default value” for a type.

impl<'de, K: IdKind> Deserialize<'de> for Id<K>

fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error>

Deserialize this value from the given Serde deserializer.

impl<K: IdKind> Display for Id<K>

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

Formats the value using the given formatter.

impl<K: IdKind> FromStr for Id<K>

type Err = BadId

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl<K: Hash + IdKind> Hash for Id<K>

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<K: Ord + IdKind> Ord for Id<K>

fn cmp(&self, other: &Id<K>) -> 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<K: PartialEq + IdKind> PartialEq for Id<K>

fn eq(&self, other: &Id<K>) -> 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<K: PartialOrd + IdKind> PartialOrd for Id<K>

fn partial_cmp(&self, other: &Id<K>) -> 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<K: IdKind> Serialize for Id<K>

fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error>

Serialize this value into the given Serde serializer.

impl<K: Copy + IdKind> Copy for Id<K>

impl<K: Eq + IdKind> Eq for Id<K>

impl<K: IdKind> StructuralPartialEq for Id<K>