Struct snarkvm_wasm::AllocatedFp[−][src]

pub struct AllocatedFp<F> where
    F: PrimeField,  {
    pub value: Option<F>,
    pub variable: ConstraintVariable<F>,
}

Expand description

Represents a variable in the constraint system whose value can be an arbitrary field element.

Fields

value: Option<F>variable: ConstraintVariable<F>

Implementations

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impl<F> AllocatedFp<F> where
    F: PrimeField,

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pub fn from<CS>(cs: CS, value: &F) -> AllocatedFp<F> where
    CS: ConstraintSystem<F>,

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impl<F> AllocatedFp<F> where
    F: PrimeField,

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pub fn from_boolean<CS>(
    cs: CS, 
    cond: Boolean
) -> Result<AllocatedFp<F>, SynthesisError> where
    CS: ConstraintSystem<F>,

Constructs Self from a Boolean: if cond is false, this outputs zero, else it outputs one.

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pub fn is_neq<CS>(
    &self, 
    cs: CS, 
    other: &AllocatedFp<F>
) -> Result<Boolean, SynthesisError> where
    CS: ConstraintSystem<F>,

Outputs the bit self != other.

This requires three constraints.

Trait Implementations

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impl<F> AllocGadget<F, F> for AllocatedFp<F> where
    F: PrimeField,

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pub fn alloc_constant<FN, T, CS>(
    cs: CS, 
    value_gen: FN
) -> Result<AllocatedFp<F>, SynthesisError> where
    CS: ConstraintSystem<F>,
    T: Borrow<F>,
    FN: FnOnce() -> Result<T, SynthesisError>,

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pub fn alloc<FN, T, CS>(
    cs: CS, 
    value_gen: FN
) -> Result<AllocatedFp<F>, SynthesisError> where
    CS: ConstraintSystem<F>,
    T: Borrow<F>,
    FN: FnOnce() -> Result<T, SynthesisError>,

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pub fn alloc_input<FN, T, CS>(
    cs: CS, 
    value_gen: FN
) -> Result<AllocatedFp<F>, SynthesisError> where
    CS: ConstraintSystem<F>,
    T: Borrow<F>,
    FN: FnOnce() -> Result<T, SynthesisError>,

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fn alloc_checked<Fn, T, CS>(cs: CS, f: Fn) -> Result<Self, SynthesisError> where
    Fn: FnOnce() -> Result<T, SynthesisError>,
    CS: ConstraintSystem<F>,
    T: Borrow<V>,

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fn alloc_input_checked<Fn, T, CS>(cs: CS, f: Fn) -> Result<Self, SynthesisError> where
    Fn: FnOnce() -> Result<T, SynthesisError>,
    CS: ConstraintSystem<F>,
    T: Borrow<V>,

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impl<F> Clone for AllocatedFp<F> where
    F: PrimeField,

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pub fn clone(&self) -> AllocatedFp<F>

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<F> CondSelectGadget<F> for AllocatedFp<F> where
    F: PrimeField,

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pub fn conditionally_select<CS>(
    cs: CS, 
    cond: &Boolean, 
    first: &AllocatedFp<F>, 
    second: &AllocatedFp<F>
) -> Result<AllocatedFp<F>, SynthesisError> where
    CS: ConstraintSystem<F>,

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pub fn cost() -> usize

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impl<F> ConditionalEqGadget<F> for AllocatedFp<F> where
    F: PrimeField,

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pub fn conditional_enforce_equal<CS>(
    &self, 
    cs: CS, 
    other: &AllocatedFp<F>, 
    condition: &Boolean
) -> Result<(), SynthesisError> where
    CS: ConstraintSystem<F>,

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pub fn cost() -> usize

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impl<F> Debug for AllocatedFp<F> where
    F: Debug + PrimeField,

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

Formats the value using the given formatter. Read more

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impl<F> EqGadget<F> for AllocatedFp<F> where
    F: PrimeField,

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pub fn is_eq<CS>(
    &self, 
    cs: CS, 
    other: &AllocatedFp<F>
) -> Result<Boolean, SynthesisError> where
    CS: ConstraintSystem<F>,

Output a Boolean value representing whether self.value() == other.value(). Read more

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fn enforce_equal<CS>(&self, cs: CS, other: &Self) -> Result<(), SynthesisError> where
    CS: ConstraintSystem<F>,

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fn cost() -> usize

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impl<F> From<AllocatedFp<F>> for FpGadget<F> where
    F: PrimeField,

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pub fn from(other: AllocatedFp<F>) -> FpGadget<F>

Performs the conversion.

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impl<F> NEqGadget<F> for AllocatedFp<F> where
    F: PrimeField,

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pub fn enforce_not_equal<CS>(
    &self, 
    cs: CS, 
    other: &AllocatedFp<F>
) -> Result<(), SynthesisError> where
    CS: ConstraintSystem<F>,

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pub fn cost() -> usize

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impl<F> PartialEq<AllocatedFp<F>> for AllocatedFp<F> where
    F: PrimeField,

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pub fn eq(&self, other: &AllocatedFp<F>) -> bool

This method tests for self and other values to be equal, and is used by ==. Read more

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fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

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impl<F> ThreeBitCondNegLookupGadget<F> for AllocatedFp<F> where
    F: PrimeField,

type TableConstant = F

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pub fn three_bit_cond_neg_lookup<CS>(
    cs: CS, 
    b: &[Boolean], 
    b0b1: &Boolean, 
    c: &[<AllocatedFp<F> as ThreeBitCondNegLookupGadget<F>>::TableConstant]
) -> Result<AllocatedFp<F>, SynthesisError> where
    CS: ConstraintSystem<F>,

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pub fn cost() -> usize

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impl<F> ToBitsBEGadget<F> for AllocatedFp<F> where
    F: PrimeField,

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pub fn to_bits_be<CS>(
    &self, 
    cs: CS
) -> Result<Vec<Boolean, Global>, SynthesisError> where
    CS: ConstraintSystem<F>,

Outputs the binary representation of the value in self in big-endian form.

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pub fn to_bits_be_strict<CS>(
    &self, 
    cs: CS
) -> Result<Vec<Boolean, Global>, SynthesisError> where
    CS: ConstraintSystem<F>,

Additionally checks if the produced list of booleans is ‘valid’.

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impl<F> ToBitsLEGadget<F> for AllocatedFp<F> where
    F: PrimeField,

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pub fn to_bits_le<CS>(
    &self, 
    cs: CS
) -> Result<Vec<Boolean, Global>, SynthesisError> where
    CS: ConstraintSystem<F>,

Outputs the binary representation of the value in self in little-endian form.

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pub fn to_bits_le_strict<CS>(
    &self, 
    cs: CS
) -> Result<Vec<Boolean, Global>, SynthesisError> where
    CS: ConstraintSystem<F>,

Additionally checks if the produced list of booleans is ‘valid’.

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impl<F> ToBytesGadget<F> for AllocatedFp<F> where
    F: PrimeField,

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pub fn to_bytes<CS>(&self, cs: CS) -> Result<Vec<UInt8, Global>, SynthesisError> where
    CS: ConstraintSystem<F>,

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pub fn to_bytes_strict<CS>(
    &self, 
    cs: CS
) -> Result<Vec<UInt8, Global>, SynthesisError> where
    CS: ConstraintSystem<F>,

Additionally checks if the produced list of booleans is ‘valid’.

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impl<F> ToConstraintFieldGadget<F> for AllocatedFp<F> where
    F: PrimeField,

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pub fn to_constraint_field<CS>(
    &self, 
    _cs: CS
) -> Result<Vec<FpGadget<F>, Global>, SynthesisError> where
    CS: ConstraintSystem<F>,

Converts self to FpGadget<F> variables.

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impl<F> TwoBitLookupGadget<F> for AllocatedFp<F> where
    F: PrimeField,

Uses two bits to perform a lookup into a table b is little-endian: b[0] is LSB.

type TableConstant = F

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pub fn two_bit_lookup<CS>(
    cs: CS, 
    b: &[Boolean], 
    c: &[<AllocatedFp<F> as TwoBitLookupGadget<F>>::TableConstant]
) -> Result<AllocatedFp<F>, SynthesisError> where
    CS: ConstraintSystem<F>,

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pub fn cost() -> usize

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impl<F> Eq for AllocatedFp<F> where
    F: PrimeField,

Auto Trait Implementations

impl<F> RefUnwindSafe for AllocatedFp<F> where
    F: RefUnwindSafe,

impl<F> Send for AllocatedFp<F>

impl<F> Sync for AllocatedFp<F>

impl<F> Unpin for AllocatedFp<F> where
    F: Unpin,

impl<F> UnwindSafe for AllocatedFp<F> where
    F: 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,

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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,

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

Mutably borrows from an owned value. Read more

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impl<F, T> ConditionalOrEqualsGadget<F> for T where
    T: ConditionalEqGadget<F> + CondSelectGadget<F>,
    F: Field,

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pub fn conditional_enforce_equal_or<CS>(
    cs: CS, 
    cond: &Boolean, 
    var: &T, 
    first: &T, 
    second: &T, 
    should_enforce: &Boolean
) -> Result<(), SynthesisError> where
    CS: ConstraintSystem<F>,

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pub fn cost() -> usize

impl<T> Conv for T

fn conv<T>(self) -> T where
    Self: Into<T>,

Converts self into T using Into<T>. Read more

impl<T> Conv for T

fn conv<T>(self) -> T where
    Self: Into<T>,

Converts self into a target type. Read more

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impl<Q, K> Equivalent<K> for Q where
    K: Borrow<Q> + ?Sized,
    Q: Eq + ?Sized,

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pub fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.

impl<T> FmtForward for T

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

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

fn fmt_display(self) -> FmtDisplay<Self> where
    Self: Display,

Causes self to use its Display implementation when Debug-formatted. Read more

fn fmt_lower_exp(self) -> FmtLowerExp<Self> where
    Self: LowerExp,

Causes self to use its LowerExp implementation when Debug-formatted. Read more

fn fmt_lower_hex(self) -> FmtLowerHex<Self> where
    Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted. Read more

fn fmt_octal(self) -> FmtOctal<Self> where
    Self: Octal,

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

fn fmt_pointer(self) -> FmtPointer<Self> where
    Self: Pointer,

Causes self to use its Pointer implementation when Debug-formatted. Read more

fn fmt_upper_exp(self) -> FmtUpperExp<Self> where
    Self: UpperExp,

Causes self to use its UpperExp implementation when Debug-formatted. Read more

fn fmt_upper_hex(self) -> FmtUpperHex<Self> where
    Self: UpperHex,

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

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impl<T> From<T> for T

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pub fn from(t: T) -> T

Performs the conversion.

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

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pub fn into(self) -> U

Performs the conversion.

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impl<F, T> OrEqualsGadget<F> for T where
    T: ConditionalOrEqualsGadget<F>,
    F: Field,

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pub fn enforce_equal_or<CS>(
    cs: CS, 
    cond: &Boolean, 
    var: &T, 
    first: &T, 
    second: &T
) -> Result<(), SynthesisError> where
    CS: ConstraintSystem<F>,

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pub fn cost() -> usize

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

fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> R

Pipes by value. This is generally the method you want to use. Read more

fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> R where
    R: 'a,

Borrows self and passes that borrow into the pipe function. Read more

fn pipe_ref_mut<'a, R>(&'a mut self, func: impl FnOnce(&'a mut Self) -> R) -> R where
    R: 'a,

Mutably borrows self and passes that borrow into the pipe function. Read more

fn pipe_borrow<'a, B, R>(&'a self, func: impl FnOnce(&'a B) -> R) -> R where
    Self: Borrow<B>,
    B: 'a + ?Sized,
    R: 'a,

Borrows self, then passes self.borrow() into the pipe function. Read more

fn pipe_borrow_mut<'a, B, R>(
    &'a mut self, 
    func: impl FnOnce(&'a mut B) -> R
) -> R where
    Self: BorrowMut<B>,
    B: 'a + ?Sized,
    R: 'a,

Mutably borrows self, then passes self.borrow_mut() into the pipe function. Read more

fn pipe_as_ref<'a, U, R>(&'a self, func: impl FnOnce(&'a U) -> R) -> R where
    Self: AsRef<U>,
    R: 'a,
    U: 'a + ?Sized,

Borrows self, then passes self.as_ref() into the pipe function.

fn pipe_as_mut<'a, U, R>(&'a mut self, func: impl FnOnce(&'a mut U) -> R) -> R where
    Self: AsMut<U>,
    R: 'a,
    U: 'a + ?Sized,

Mutably borrows self, then passes self.as_mut() into the pipe function. Read more

fn pipe_deref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where
    Self: Deref<Target = T>,
    T: 'a + ?Sized,
    R: 'a,

Borrows self, then passes self.deref() into the pipe function.

fn pipe_deref_mut<'a, T, R>(
    &'a mut self, 
    func: impl FnOnce(&'a mut T) -> R
) -> R where
    Self: DerefMut<Target = T> + Deref,
    T: 'a + ?Sized,
    R: 'a,

Mutably borrows self, then passes self.deref_mut() into the pipe function. Read more

impl<T> Pipe for T

fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> R

Pipes a value into a function that cannot ordinarily be called in suffix position. Read more

impl<T> PipeAsRef for T

fn pipe_as_ref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where
    Self: AsRef<T>,
    T: 'a,
    R: 'a,

Pipes a trait borrow into a function that cannot normally be called in suffix position. Read more

fn pipe_as_mut<'a, T, R>(&'a mut self, func: impl FnOnce(&'a mut T) -> R) -> R where
    Self: AsMut<T>,
    T: 'a,
    R: 'a,

Pipes a trait mutable borrow into a function that cannot normally be called in suffix position. Read more

impl<T> PipeBorrow for T

fn pipe_borrow<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where
    Self: Borrow<T>,
    T: 'a,
    R: 'a,

Pipes a trait borrow into a function that cannot normally be called in suffix position. Read more

fn pipe_borrow_mut<'a, T, R>(
    &'a mut self, 
    func: impl FnOnce(&'a mut T) -> R
) -> R where
    Self: BorrowMut<T>,
    T: 'a,
    R: 'a,

Pipes a trait mutable borrow into a function that cannot normally be called in suffix position. Read more

impl<T> PipeDeref for T

fn pipe_deref<'a, R>(&'a self, func: impl FnOnce(&'a Self::Target) -> R) -> R where
    Self: Deref,
    R: 'a,

Pipes a dereference into a function that cannot normally be called in suffix position. Read more

fn pipe_deref_mut<'a, R>(
    &'a mut self, 
    func: impl FnOnce(&'a mut Self::Target) -> R
) -> R where
    Self: DerefMut,
    R: 'a,

Pipes a mutable dereference into a function that cannot normally be called in suffix position. Read more

impl<T> PipeRef for T

fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> R where
    R: 'a,

Pipes a reference into a function that cannot ordinarily be called in suffix position. Read more

fn pipe_mut<'a, R>(&'a mut self, func: impl FnOnce(&'a mut Self) -> R) -> R where
    R: 'a,

Pipes a mutable reference into a function that cannot ordinarily be called in suffix position. Read more

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

impl<T> Same<T> for T

type Output = T

Should always be Self

impl<T> Tap for T

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

Immutable access to a value. Read more

fn tap_mut(self, func: impl FnOnce(&mut Self)) -> Self

Mutable access to a value. Read more

fn tap_borrow<B>(self, func: impl FnOnce(&B)) -> Self where
    Self: Borrow<B>,
    B: ?Sized,

Immutable access to the Borrow of a value. Read more

fn tap_borrow_mut<B>(self, func: impl FnOnce(&mut B)) -> Self where
    Self: BorrowMut<B>,
    B: ?Sized,

Mutable access to the BorrowMut of a value. Read more

fn tap_ref<R>(self, func: impl FnOnce(&R)) -> Self where
    Self: AsRef<R>,
    R: ?Sized,

Immutable access to the AsRef<R> view of a value. Read more

fn tap_ref_mut<R>(self, func: impl FnOnce(&mut R)) -> Self where
    Self: AsMut<R>,
    R: ?Sized,

Mutable access to the AsMut<R> view of a value. Read more

fn tap_deref<T>(self, func: impl FnOnce(&T)) -> Self where
    Self: Deref<Target = T>,
    T: ?Sized,

Immutable access to the Deref::Target of a value. Read more

fn tap_deref_mut<T>(self, func: impl FnOnce(&mut T)) -> Self where
    Self: DerefMut<Target = T> + Deref,
    T: ?Sized,

Mutable access to the Deref::Target of a value. Read more

fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self

Calls .tap() only in debug builds, and is erased in release builds.

fn tap_mut_dbg(self, func: impl FnOnce(&mut Self)) -> Self

Calls .tap_mut() only in debug builds, and is erased in release builds. Read more

fn tap_borrow_dbg<B>(self, func: impl FnOnce(&B)) -> Self where
    Self: Borrow<B>,
    B: ?Sized,

Calls .tap_borrow() only in debug builds, and is erased in release builds. Read more

fn tap_borrow_mut_dbg<B>(self, func: impl FnOnce(&mut B)) -> Self where
    Self: BorrowMut<B>,
    B: ?Sized,

Calls .tap_borrow_mut() only in debug builds, and is erased in release builds. Read more

fn tap_ref_dbg<R>(self, func: impl FnOnce(&R)) -> Self where
    Self: AsRef<R>,
    R: ?Sized,

Calls .tap_ref() only in debug builds, and is erased in release builds. Read more

fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Self where
    Self: AsMut<R>,
    R: ?Sized,

Calls .tap_ref_mut() only in debug builds, and is erased in release builds. Read more

fn tap_deref_dbg<T>(self, func: impl FnOnce(&T)) -> Self where
    Self: Deref<Target = T>,
    T: ?Sized,

Calls .tap_deref() only in debug builds, and is erased in release builds. Read more

fn tap_deref_mut_dbg<T>(self, func: impl FnOnce(&mut T)) -> Self where
    Self: DerefMut<Target = T> + Deref,
    T: ?Sized,

Calls .tap_deref_mut() only in debug builds, and is erased in release builds. Read more

impl<T> Tap for T

fn tap<F, R>(self, func: F) -> Self where
    F: FnOnce(&Self) -> R,

Provides immutable access for inspection. Read more

fn tap_dbg<F, R>(self, func: F) -> Self where
    F: FnOnce(&Self) -> R,

Calls tap in debug builds, and does nothing in release builds.

fn tap_mut<F, R>(self, func: F) -> Self where
    F: FnOnce(&mut Self) -> R,

Provides mutable access for modification. Read more

fn tap_mut_dbg<F, R>(self, func: F) -> Self where
    F: FnOnce(&mut Self) -> R,

Calls tap_mut in debug builds, and does nothing in release builds.

impl<T, U> TapAsRef<U> for T where
    U: ?Sized,

fn tap_ref<F, R>(self, func: F) -> Self where
    Self: AsRef<T>,
    F: FnOnce(&T) -> R,

Provides immutable access to the reference for inspection.

fn tap_ref_dbg<F, R>(self, func: F) -> Self where
    Self: AsRef<T>,
    F: FnOnce(&T) -> R,

Calls tap_ref in debug builds, and does nothing in release builds.

fn tap_ref_mut<F, R>(self, func: F) -> Self where
    Self: AsMut<T>,
    F: FnOnce(&mut T) -> R,

Provides mutable access to the reference for modification.

fn tap_ref_mut_dbg<F, R>(self, func: F) -> Self where
    Self: AsMut<T>,
    F: FnOnce(&mut T) -> R,

Calls tap_ref_mut in debug builds, and does nothing in release builds.

impl<T, U> TapBorrow<U> for T where
    U: ?Sized,

fn tap_borrow<F, R>(self, func: F) -> Self where
    Self: Borrow<T>,
    F: FnOnce(&T) -> R,

Provides immutable access to the borrow for inspection. Read more

fn tap_borrow_dbg<F, R>(self, func: F) -> Self where
    Self: Borrow<T>,
    F: FnOnce(&T) -> R,

Calls tap_borrow in debug builds, and does nothing in release builds.

fn tap_borrow_mut<F, R>(self, func: F) -> Self where
    Self: BorrowMut<T>,
    F: FnOnce(&mut T) -> R,

Provides mutable access to the borrow for modification.

fn tap_borrow_mut_dbg<F, R>(self, func: F) -> Self where
    Self: BorrowMut<T>,
    F: FnOnce(&mut T) -> R,

Calls tap_borrow_mut in debug builds, and does nothing in release builds. Read more

impl<T> TapDeref for T

fn tap_deref<F, R>(self, func: F) -> Self where
    Self: Deref,
    F: FnOnce(&Self::Target) -> R,

Immutably dereferences self for inspection.

fn tap_deref_dbg<F, R>(self, func: F) -> Self where
    Self: Deref,
    F: FnOnce(&Self::Target) -> R,

Calls tap_deref in debug builds, and does nothing in release builds.

fn tap_deref_mut<F, R>(self, func: F) -> Self where
    Self: DerefMut,
    F: FnOnce(&mut Self::Target) -> R,

Mutably dereferences self for modification.

fn tap_deref_mut_dbg<F, R>(self, func: F) -> Self where
    Self: DerefMut,
    F: FnOnce(&mut Self::Target) -> R,

Calls tap_deref_mut in debug builds, and does nothing in release builds. Read more

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

type Owned = T

The resulting type after obtaining ownership.

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pub fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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pub fn clone_into(&self, target: &mut T)

🔬 This is a nightly-only experimental API. (toowned_clone_into)

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T> TryConv for T

fn try_conv<T>(self) -> Result<T, Self::Error> where
    Self: TryInto<T>,

Attempts to convert self into T using TryInto<T>. Read more

impl<T> TryConv for T

fn try_conv<T>(self) -> Result<T, Self::Error> where
    Self: TryInto<T>,

Attempts to convert self into a target type. Read more

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

type Error = Infallible

The type returned in the event of a conversion error.

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

Performs the conversion.

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

type Error = >::Error

The type returned in the event of a conversion error.

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

Performs the conversion.

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

pub fn vzip(self) -> V