Struct DagNodeId 

pub struct DagNodeId(/* private fields */);

An index into the DagArena, identifying a specific DagNode.

This is a lightweight handle (4 bytes) that can be freely copied and compared. It is only valid within the arena that created it.

Implementations

impl DagNodeId

pub const NONE: Self

A sentinel value representing “no node” / null.

pub const fn new(id: u32) -> Self

Creates a new DagNodeId from a raw u32 index.

pub const fn value(self) -> u32

Returns the raw u32 index of this node ID.

pub const fn index(self) -> usize

Returns the raw index value.

pub const fn is_none(self) -> bool

Returns true if this is the null sentinel.

Trait Implementations

impl<'__de, __Context> BorrowDecode<'__de, __Context> for DagNodeId

fn borrow_decode<__D: BorrowDecoder<'__de, Context = __Context>>( decoder: &mut __D, ) -> Result<Self, DecodeError>

Attempt to decode this type with the given [BorrowDecode].

impl Clone for DagNodeId

fn clone(&self) -> DagNodeId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DagNodeId

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

Formats the value using the given formatter.

impl<__Context> Decode<__Context> for DagNodeId

fn decode<__D: Decoder<Context = __Context>>( decoder: &mut __D, ) -> Result<Self, DecodeError>

Attempt to decode this type with the given [Decode].

impl Display for DagNodeId

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

Formats the value using the given formatter.

impl Encode for DagNodeId

fn encode<__E: Encoder>(&self, encoder: &mut __E) -> Result<(), EncodeError>

Encode a given type.

impl Hash for DagNodeId

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 DagNodeId

fn eq(&self, other: &DagNodeId) -> 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 Copy for DagNodeId

impl Eq for DagNodeId

impl StructuralPartialEq for DagNodeId