Struct ProofCacheKey 

pub struct ProofCacheKey {
    pub goal_hash: u64,
    pub kb_version: u64,
}

Composite key for a cached proof: goal identity × KB version.

Using the FNV-1a hash of the goal string avoids storing arbitrarily long goal representations in the cache.

Fields

goal_hash: u64

FNV-1a hash of the serialised goal string.

kb_version: u64

Monotonic version counter of the knowledge base at proof time.

Implementations

impl ProofCacheKey

pub fn new(goal_hash: u64, kb_version: u64) -> Self

Construct a key from already-computed parts.

pub fn from_goal(goal: &str, kb_version: u64) -> Self

Convenience constructor: hash the goal string on your behalf.

Trait Implementations

impl Clone for ProofCacheKey

fn clone(&self) -> ProofCacheKey

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ProofCacheKey

impl Debug for ProofCacheKey

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

Formats the value using the given formatter.

impl Eq for ProofCacheKey

impl Hash for ProofCacheKey

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 ProofCacheKey

fn eq(&self, other: &ProofCacheKey) -> 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 StructuralPartialEq for ProofCacheKey