PeekMut

wasmer_compiler::lib::std::vec

Struct PeekMut

pub struct PeekMut<'a, T> {
    vec: &'a mut Vec<T>,
}

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

Expand description

Structure wrapping a mutable reference to the last item in a Vec.

This struct is created by the peek_mut method on Vec. See its documentation for more.

Fields§

§vec: &'a mut Vec<T>

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

Implementations§

impl<'a, T> PeekMut<'a, T>

pub fn pop(self) -> T

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

Removes the peeked value from the vector and returns it.

Trait Implementations§

impl<T> Debug for PeekMut<'_, T>
where T: Debug,

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

Formats the value using the given formatter. Read more

impl<'a, T> Deref for PeekMut<'a, T>

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &<PeekMut<'a, T> as Deref>::Target

Dereferences the value.

impl<'a, T> DerefMut for PeekMut<'a, T>

fn deref_mut(&mut self) -> &mut <PeekMut<'a, T> as Deref>::Target

Mutably dereferences the value.

Auto Trait Implementations§

impl<'a, T> Freeze for PeekMut<'a, T>

impl<'a, T> RefUnwindSafe for PeekMut<'a, T>
where T: RefUnwindSafe,

impl<'a, T> Send for PeekMut<'a, T>
where T: Send,

impl<'a, T> Sync for PeekMut<'a, T>
where T: Sync,

impl<'a, T> Unpin for PeekMut<'a, T>

impl<'a, T> !UnwindSafe for PeekMut<'a, T>

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> ArchivePointee for T

type ArchivedMetadata = ()

The archived version of the pointer metadata for this type.

fn pointer_metadata( _: &<T as ArchivePointee>::ArchivedMetadata, ) -> <T as Pointee>::Metadata

Converts some archived metadata to the pointer metadata for itself.

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

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

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

fn into(self) -> U

Calls U::from(self).

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

impl<T> IntoEither for T

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

impl<T> LayoutRaw for T

fn layout_raw(_: <T as Pointee>::Metadata) -> Result<Layout, LayoutError>

Returns the layout of the type.

impl<T, N1, N2> Niching<NichedOption<T, N1>> for N2
where T: SharedNiching<N1, N2>, N1: Niching<T>, N2: Niching<T>,

unsafe fn is_niched(niched: *const NichedOption<T, N1>) -> bool

Returns whether the given value has been niched. Read more

fn resolve_niched(out: Place<NichedOption<T, N1>>)

Writes data to out indicating that a T is niched.

impl<T> Pointable for T

const ALIGN: usize

The alignment of pointer.

type Init = T

The type for initializers.

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

Initializes a with the given initializer. Read more

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

Dereferences the given pointer. Read more

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

Mutably dereferences the given pointer. Read more

unsafe fn drop(ptr: usize)

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

impl<T> Pointee for T

type Metadata = ()

The metadata type for pointers and references to this type.

impl<P, T> Receiver for P
where P: Deref<Target = T> + ?Sized, T: ?Sized,

type Target = T

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

The target type on which the method may be called.

impl<R> Rng for R
where R: TryRng<Error = Infallible> + ?Sized,

fn next_u32(&mut self) -> u32

Return the next random u32.

fn next_u64(&mut self) -> u64

Return the next random u64.

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

Fill dest with random data. Read more

impl<T> Same for T

type Output = T

Should always be Self

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

type Error = Infallible

The type returned in the event of a conversion error.

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

Performs the conversion.

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

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

The type returned in the event of a conversion error.

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

Performs the conversion.

impl<R> TryRng for R
where R: DerefMut, <R as Deref>::Target: TryRng,

type Error = <<R as Deref>::Target as TryRng>::Error

The type returned in the event of a RNG error. Read more

fn try_next_u32(&mut self) -> Result<u32, <R as TryRng>::Error>

Return the next random u32.

fn try_next_u64(&mut self) -> Result<u64, <R as TryRng>::Error>

Return the next random u64.

fn try_fill_bytes(&mut self, dst: &mut [u8]) -> Result<(), <R as TryRng>::Error>

Fill dst entirely with random data.

impl<R> TryRngCore for R
where R: TryRng,

type Error = <R as TryRng>::Error

👎Deprecated since 0.10.0: use TryRng instead

Error type.

impl<T> Upcastable for T
where T: Any + Send + Sync + 'static,

fn upcast_any_ref(&self) -> &(dyn Any + 'static)

upcast ref

fn upcast_any_mut(&mut self) -> &mut (dyn Any + 'static)

upcast mut ref

fn upcast_any_box(self: Box<T>) -> Box<dyn Any>

upcast boxed dyn

impl<R> CryptoRng for R
where R: TryCryptoRng<Error = Infallible> + ?Sized,

impl<R> RngCore for R
where R: Rng,

impl<R> TryCryptoRng for R
where R: DerefMut, <R as Deref>::Target: TryCryptoRng,