revm_primitives::map::foldhash::fast

Struct SeedableRandomState

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pub struct SeedableRandomState { /* private fields */ }
Expand description

A BuildHasher for fast::FoldHasher that is randomly initialized by default, but can also be initialized with a specific seed.

This can be useful for e.g. testing, but the downside is that this type has a size of 16 bytes rather than the 8 bytes RandomState is.

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impl SeedableRandomState

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pub fn random() -> SeedableRandomState

Generates a random SeedableRandomState, similar to RandomState.

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pub fn fixed() -> SeedableRandomState

Generates a fixed SeedableRandomState, similar to FixedState.

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pub fn with_seed( per_hasher_seed: u64, shared_seed: &'static SharedSeed, ) -> SeedableRandomState

Generates a SeedableRandomState with the given per-hasher seed and SharedSeed.

Trait Implementations§

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impl BuildHasher for SeedableRandomState

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type Hasher = FoldHasher<'static>

Type of the hasher that will be created.
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fn build_hasher(&self) -> FoldHasher<'static>

Creates a new hasher. Read more
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fn hash_one<T>(&self, x: T) -> u64
where T: Hash, Self: Sized, Self::Hasher: Hasher,

Calculates the hash of a single value. Read more
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impl Clone for SeedableRandomState

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fn clone(&self) -> SeedableRandomState

Returns a duplicate 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 SeedableRandomState

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

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

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fn default() -> SeedableRandomState

Returns the “default value” for a type. Read more

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

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fn borrow(&self) -> &T

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fn borrow_mut(&mut self) -> &mut T

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impl<T> CloneToUninit for T
where T: Clone,

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

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> FmtForward for T

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fn fmt_binary(self) -> FmtBinary<Self>
where Self: Binary,

Causes self to use its Binary implementation when Debug-formatted.
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fn fmt_display(self) -> FmtDisplay<Self>
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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fn fmt_list(self) -> FmtList<Self>
where &'a Self: for<'a> IntoIterator,

Formats each item in a sequence. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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where U: From<T>,

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Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Pipe for T
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fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> R
where Self: Sized,

Pipes by value. This is generally the method you want to use. Read more
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where R: 'a,

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Mutably borrows self and passes that borrow into the pipe function. Read more
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where Self: Borrow<B>, B: 'a + ?Sized, R: 'a,

Borrows self, then passes self.borrow() into the pipe function. Read more
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where Self: Deref<Target = T>, T: 'a + ?Sized, R: 'a,

Borrows self, then passes self.deref() into the pipe function.
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where Self: DerefMut<Target = T> + Deref, T: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.deref_mut() into the pipe function.
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type Output = T

Should always be Self
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fn tap(self, func: impl FnOnce(&Self)) -> Self

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