penumbra_tct::internal::hash

Struct CachedHash

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pub struct CachedHash { /* private fields */ }
Available on crate feature internal only.
Expand description

An Mutex-based cache for hashes, to prevent repeated computation.

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impl CachedHash

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pub fn get(&self) -> Option<Hash>

Get the cached hash, or return None if it is not yet set.

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pub fn set_if_empty(&self, new: impl FnOnce() -> Hash) -> Hash

If the cache is empty, set its value using the closure, then return its contents regardless.

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pub fn clear(&self)

Reset the cached hash to empty.

Trait Implementations§

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impl Clone for CachedHash

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fn clone(&self) -> Self

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for CachedHash

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

Formats the value using the given formatter. Read more
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impl Default for CachedHash

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fn default() -> CachedHash

Returns the “default value” for a type. Read more
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impl From<Hash> for CachedHash

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fn from(hash: Hash) -> Self

Converts to this type from the input type.

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impl<T> Any for T
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fn type_id(&self) -> TypeId

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unsafe fn clone_to_uninit(&self, dst: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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where Self: Binary,

Causes self to use its Binary implementation when Debug-formatted.
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where Self: Display,

Causes self to use its Display implementation when Debug-formatted.
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fn fmt_lower_exp(self) -> FmtLowerExp<Self>
where Self: LowerExp,

Causes self to use its LowerExp implementation when Debug-formatted.
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fn fmt_lower_hex(self) -> FmtLowerHex<Self>
where Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted.
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fn fmt_octal(self) -> FmtOctal<Self>
where Self: Octal,

Causes self to use its Octal implementation when Debug-formatted.
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fn fmt_pointer(self) -> FmtPointer<Self>
where Self: Pointer,

Causes self to use its Pointer implementation when Debug-formatted.
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fn fmt_upper_exp(self) -> FmtUpperExp<Self>
where Self: UpperExp,

Causes self to use its UpperExp implementation when Debug-formatted.
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fn fmt_upper_hex(self) -> FmtUpperHex<Self>
where Self: UpperHex,

Causes self to use its UpperHex implementation when Debug-formatted.
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