struct LazyArray<T> {
    position: NonZeroUsize,
    num_elems: usize,
    _marker: PhantomData<fn() -> T>,
}
Expand description

A list of lazily-decoded values.

Unlike LazyValue<Vec<T>>, the length is encoded next to the position, not at the position, which means that the length doesn’t need to be known before encoding all the elements.

If the length is 0, no position is encoded, but otherwise, the encoding is that of LazyArray, with the distinction that the minimal distance the length of the sequence, i.e. it’s assumed there’s no 0-byte element in the sequence.

Fields§

§position: NonZeroUsize§num_elems: usize§_marker: PhantomData<fn() -> T>

Implementations§

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impl<T: ParameterizedOverTcx> LazyArray<T>

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fn decode<'a, 'tcx, M: Metadata<'a, 'tcx>>(
    self,
    metadata: M
) -> DecodeIterator<'a, 'tcx, T::Value<'tcx>> where
    T::Value<'tcx>: Decodable<DecodeContext<'a, 'tcx>>,

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impl<T> LazyArray<T>

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fn from_position_and_num_elems(
    position: NonZeroUsize,
    num_elems: usize
) -> LazyArray<T>

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fn empty() -> LazyArray<T>

Trait Implementations§

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impl<T> Clone for LazyArray<T>

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fn clone(&self) -> Self

Returns a copy of the value. Read more
1.0.0 · source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<'a, 'tcx, T> Decodable<DecodeContext<'a, 'tcx>> for LazyArray<T>

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fn decode(decoder: &mut DecodeContext<'a, 'tcx>) -> Self

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impl<'a, 'tcx, T> Encodable<EncodeContext<'a, 'tcx>> for LazyArray<T>

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fn encode(&self, e: &mut EncodeContext<'a, 'tcx>)

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impl<T: ParameterizedOverTcx> ParameterizedOverTcx for LazyArray<T>

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type Value<'tcx> = LazyArray<<T as ParameterizedOverTcx>::Value<'tcx>>

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impl<T> Copy for LazyArray<T>

Auto Trait Implementations§

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impl<T> RefUnwindSafe for LazyArray<T>

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impl<T> Send for LazyArray<T>

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impl<T> Sync for LazyArray<T>

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impl<T> Unpin for LazyArray<T>

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impl<T> UnwindSafe for LazyArray<T>

Blanket Implementations§

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impl<T> Any for Twhere
    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 Twhere
    T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

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

const: unstable · source§

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§

fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · source§

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> ToOwned for Twhere
    T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for Twhere
    U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
const: unstable · source§

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 Twhere
    U: TryFrom<T>,

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

The type returned in the event of a conversion error.
const: unstable · source§

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

Performs the conversion.

Layout§

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference’s “Type Layout” chapter for details on type layout guarantees.

Size: 16 bytes