Struct snarkvm_polycommit::optional_rng::OptionalRng

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pub struct OptionalRng<R>(pub Option<R>);

Expand description

OptionalRng is a hack that is necessary because Option<&mut R> is not implicitly reborrowed like &mut R is. This causes problems when a variable of type Option<&mut R> is moved (eg, in a loop).

To overcome this, we define the wrapper OptionalRng here that can be borrowed mutably, without fear of being moved.

Tuple Fields

0: Option<R>

Trait Implementations

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impl<R: RngCore> From<R> for OptionalRng<R>

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fn from(other: R) -> Self

Performs the conversion.

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impl<R: RngCore> RngCore for OptionalRng<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, dest: &mut [u8 ])

Fill dest with random data. Read more

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fn try_fill_bytes(&mut self, dest: &mut [u8 ]) -> Result<(), Error>

Fill dest entirely with random data. Read more

Auto Trait Implementations

impl<R> RefUnwindSafe for OptionalRng<R> where
R: RefUnwindSafe,

impl<R> Send for OptionalRng<R> where
R: Send,

impl<R> Sync for OptionalRng<R> where
R: Sync,

impl<R> Unpin for OptionalRng<R> where
R: Unpin,

impl<R> UnwindSafe for OptionalRng<R> where
R: UnwindSafe,

Blanket Implementations

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

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pub 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,

const: unstable · source

pub 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,

const: unstable · source

pub 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

const: unstable · source

pub fn from(t: T) -> T

Performs the conversion.

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impl<T, U> Into for T where
U: From<T>,

const: unstable · source

pub fn into(self) -> U

Performs the conversion.

impl<T> Pointable for T

pub const ALIGN: usize

The alignment of pointer.

type Init = T

The type for initializers.

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

Initializes a with the given initializer. Read more

pub unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

pub unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

pub unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

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impl<R> Rng for R where
R: RngCore + ?Sized,

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fn gen<T>(&mut self) -> T where
Standard: Distribution<T>,

Return a random value supporting the Standard distribution. Read more

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fn gen_range<T, R>(&mut self, range: R) -> T where
T: SampleUniform,
R: SampleRange<T>,

Generate a random value in the given range. Read more

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fn sample<T, D>(&mut self, distr: D) -> T where
D: Distribution<T>,

Sample a new value, using the given distribution. Read more

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fn sample_iter<T, D>(self, distr: D) -> DistIter<D, Self, T> where
D: Distribution<T>,

Create an iterator that generates values using the given distribution. Read more

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fn fill<T>(&mut self, dest: &mut T) where
T: Fill + ?Sized,

Fill any type implementing Fill with random data Read more

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fn try_fill<T>(&mut self, dest: &mut T) -> Result<(), Error> where
T: Fill + ?Sized,

Fill any type implementing Fill with random data Read more

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fn gen_bool(&mut self, p: f64) -> bool

Return a bool with a probability p of being true. Read more

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fn gen_ratio(&mut self, numerator: u32, denominator: u32) -> bool

Return a bool with a probability of numerator/denominator of being true. I.e. gen_ratio(2, 3) has chance of 2 in 3, or about 67%, of returning true. If numerator == denominator, then the returned value is guaranteed to be true. If numerator == 0, then the returned value is guaranteed to be false. Read more

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impl<T> Same<T> for T

type Output = T

Should always be Self

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

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct snarkvm_polycommit::optional_rng::OptionalRng

Tuple Fields

Trait Implementations

impl<R: RngCore> From<R> for OptionalRng<R>

fn from(other: R) -> Self

impl<R: RngCore> RngCore for OptionalRng<R>

fn next_u32(&mut self) -> u32

fn next_u64(&mut self) -> u64

fn fill_bytes(&mut self, dest: &mut [u8])

fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error>

Auto Trait Implementations

impl<R> RefUnwindSafe for OptionalRng<R> where R: RefUnwindSafe,

impl<R> Send for OptionalRng<R> where R: Send,

impl<R> Sync for OptionalRng<R> where R: Sync,

impl<R> Unpin for OptionalRng<R> where R: Unpin,

impl<R> UnwindSafe for OptionalRng<R> where R: UnwindSafe,

Blanket Implementations

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

pub fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

pub fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

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

impl<T> From<T> for T

pub fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

pub fn into(self) -> U

impl<T> Pointable for T

pub const ALIGN: usize

type Init = T

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

pub unsafe fn deref<'a>(ptr: usize) -> &'a T

pub unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

pub unsafe fn drop(ptr: usize)

impl<R> Rng for R where R: RngCore + ?Sized,

fn gen<T>(&mut self) -> T where Standard: Distribution<T>,

fn gen_range<T, R>(&mut self, range: R) -> T where T: SampleUniform, R: SampleRange<T>,

fn sample<T, D>(&mut self, distr: D) -> T where D: Distribution<T>,

fn sample_iter<T, D>(self, distr: D) -> DistIter<D, Self, T> where D: Distribution<T>,

fn fill<T>(&mut self, dest: &mut T) where T: Fill + ?Sized,

fn try_fill<T>(&mut self, dest: &mut T) -> Result<(), Error> where T: Fill + ?Sized,

fn gen_bool(&mut self, p: f64) -> bool

fn gen_ratio(&mut self, numerator: u32, denominator: u32) -> bool

impl<T> Same<T> for T

type Output = T

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

type Error = Infallible

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

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

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<V, T> VZip<V> for T where V: MultiLane<T>,

pub fn vzip(self) -> V

fn fill_bytes(&mut self, dest: &mut [u8 ])

fn try_fill_bytes(&mut self, dest: &mut [u8 ]) -> Result<(), Error>

impl<R> RefUnwindSafe for OptionalRng<R> where
R: RefUnwindSafe,

impl<R> Send for OptionalRng<R> where
R: Send,

impl<R> Sync for OptionalRng<R> where
R: Sync,

impl<R> Unpin for OptionalRng<R> where
R: Unpin,

impl<R> UnwindSafe for OptionalRng<R> where
R: UnwindSafe,

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

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<R> Rng for R where
R: RngCore + ?Sized,

fn gen<T>(&mut self) -> T where
Standard: Distribution<T>,

fn gen_range<T, R>(&mut self, range: R) -> T where
T: SampleUniform,
R: SampleRange<T>,

fn sample<T, D>(&mut self, distr: D) -> T where
D: Distribution<T>,

fn sample_iter<T, D>(self, distr: D) -> DistIter<D, Self, T> where
D: Distribution<T>,

fn fill<T>(&mut self, dest: &mut T) where
T: Fill + ?Sized,

fn try_fill<T>(&mut self, dest: &mut T) -> Result<(), Error> where
T: Fill + ?Sized,

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

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

impl<V, T> VZip<V> for T where
V: MultiLane<T>,