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CachedHashKey

tree_morph::cache

Struct CachedHashKey 

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pub struct CachedHashKey;
Expand description

Hashing strategy that delegates to CacheHashable::get_cached_hash, allowing types with internally cached hashes to avoid rehashing entire subtrees.

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impl<T: CacheHashable> CacheKey<T> for CachedHashKey

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fn node_hash(term: &T) -> u64

Compute a level-independent hash for term.
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fn invalidate(node: &T)

Invalidate any internally cached hash for the given node. The default is a no-op (used by StdHashKey).
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fn invalidate_subtree(node: &T)

Invalidate cached hashes for the given node and all its descendants. The default is a no-op (used by StdHashKey).
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fn combine(node_hash: u64, level: usize) -> u64

Combine a node hash with a rule-group level to produce a cache key.
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fn hash(term: &T, level: usize) -> u64

Compute a cache key for term at the given rule application level.

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const ALIGN: usize

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type Init = T

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unsafe fn init(init: <T as Pointable>::Init) -> usize

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Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 0 bytes