Struct ResourceId 

pub struct ResourceId<H: Hasher = DefaultContentHasher> { /* private fields */ }

Unique identifier for heap-allocated resources.

ResourceId is derived from a tagged hash preimage that contains the canonical resource encoding and the allocation counter. This keeps repeated allocations of identical semantic resources distinct.

Implementations

impl<H: Hasher> ResourceId<H>

pub fn new(hash: H::Digest, counter: u64) -> Self

Create a new ResourceId from hash and counter.

pub fn from_resource(resource: &Resource, counter: u64) -> Self

Create a ResourceId from a resource and allocation counter.

The hasher consumes a tagged preimage that contains the canonical resource bytes and the little-endian counter.

pub fn to_short_hex(&self) -> String

Display as a short hex string.

pub fn hash(&self) -> &H::Digest

Get the raw hash bytes.

pub fn as_bytes(&self) -> &[u8]

Get the raw hash bytes as a slice.

pub fn counter(&self) -> u64

Get the allocation counter.

Trait Implementations

impl<H: Clone + Hasher> Clone for ResourceId<H>

where H::Digest: Clone,

fn clone(&self) -> ResourceId<H>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<H: Hasher> Debug for ResourceId<H>

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

Formats the value using the given formatter.

impl<H: Hasher> Display for ResourceId<H>

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

Formats the value using the given formatter.

impl<H: Hasher> Hash for ResourceId<H>

fn hash<S: StdHasher>(&self, state: &mut S)

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<H: Hasher> Ord for ResourceId<H>

fn cmp(&self, other: &Self) -> 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<H: Hasher> PartialEq for ResourceId<H>

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<H: Hasher> PartialOrd for ResourceId<H>

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<H: Hasher> Eq for ResourceId<H>