Struct UnwrapMut

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pub struct UnwrapMut<'r, R: TryRngCore + ?Sized>(pub &'r mut R);
Expand description

Wrapper around TryRngCore implementation which implements RngCore by panicking on potential errors.

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§0: &'r mut R

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impl<'r, R: TryRngCore + ?Sized> UnwrapMut<'r, R>

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pub fn re<'b>(&'b mut self) -> UnwrapMut<'b, R>
where 'r: 'b,

Reborrow with a new lifetime

Rust allows references like &T or &mut T to be “reborrowed” through coercion: essentially, the pointer is copied under a new, shorter, lifetime. Until rfcs#1403 lands, reborrows on user types require a method call.

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impl<'r, R: Debug + TryRngCore + ?Sized> Debug for UnwrapMut<'r, R>

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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<'r, R: Hash + TryRngCore + ?Sized> Hash for UnwrapMut<'r, R>

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl<'r, R: PartialEq + TryRngCore + ?Sized> PartialEq for UnwrapMut<'r, R>

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fn eq(&self, other: &UnwrapMut<'r, R>) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<R: TryRngCore + ?Sized> RngCore for UnwrapMut<'_, R>

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fn next_u32(&mut self) -> u32

Return the next random u32. Read more
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fn next_u64(&mut self) -> u64

Return the next random u64. Read more
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fn fill_bytes(&mut self, dst: &mut [u8])

Fill dest with random data. Read more
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impl<R: TryCryptoRng + ?Sized> CryptoRng for UnwrapMut<'_, R>

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impl<'r, R: Eq + TryRngCore + ?Sized> Eq for UnwrapMut<'r, R>

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impl<'r, R: TryRngCore + ?Sized> StructuralPartialEq for UnwrapMut<'r, R>

Auto Trait Implementations§

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impl<'r, R> Freeze for UnwrapMut<'r, R>
where R: ?Sized,

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impl<'r, R> RefUnwindSafe for UnwrapMut<'r, R>
where R: RefUnwindSafe + ?Sized,

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impl<'r, R> Send for UnwrapMut<'r, R>
where R: Send + ?Sized,

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impl<'r, R> Sync for UnwrapMut<'r, R>
where R: Sync + ?Sized,

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impl<'r, R> Unpin for UnwrapMut<'r, R>
where R: ?Sized,

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impl<'r, R> !UnwindSafe for UnwrapMut<'r, R>

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. 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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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

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, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<R> TryRngCore for R
where R: RngCore + ?Sized,

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type Error = Infallible

The type returned in the event of a RNG error.
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fn try_next_u32(&mut self) -> Result<u32, <R as TryRngCore>::Error>

Return the next random u32.
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fn try_next_u64(&mut self) -> Result<u64, <R as TryRngCore>::Error>

Return the next random u64.
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fn try_fill_bytes( &mut self, dst: &mut [u8], ) -> Result<(), <R as TryRngCore>::Error>

Fill dest entirely with random data.
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fn unwrap_err(self) -> UnwrapErr<Self>
where Self: Sized,

Wrap RNG with the UnwrapErr wrapper.
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fn unwrap_mut(&mut self) -> UnwrapMut<'_, Self>

Wrap RNG with the UnwrapMut wrapper.
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fn read_adapter(&mut self) -> RngReadAdapter<'_, Self>
where Self: Sized,

Convert an RngCore to a RngReadAdapter.
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impl<R> TryCryptoRng for R
where R: CryptoRng + ?Sized,