ArcLayout

arc_slice::layout

Struct ArcLayout 

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pub struct ArcLayout<const ANY_BUFFER: bool = false, const STATIC: bool = false>;
Expand description

The default and most optimized layout.

It aims to be more performant than other layouts for supported operations, though other layouts may support a broader range of use cases. It takes two generic boolean parameters, whose defaults can be overridden via compilation features:

  • ANY_BUFFER, default to false, if it supports arbitrary buffer;
  • STATIC, default to false, if it supports static slices without allocations; it enables Default implementation for ArcSlice, as well as const constructors.

Other layouts support arbitrary buffers and static slices out of the box, but this flexibility comes at a cost. ArcLayout focuses instead on providing the most optimized implementation adapted to each use case.

assert_eq!(size_of::<ArcBytes<ArcLayout>>(), 3 * size_of::<usize>());
assert_eq!(size_of::<ArcBytesMut<ArcLayout>>(), 4 * size_of::<usize>());

Trait Implementations§

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impl<const ANY_BUFFER: bool, const STATIC: bool> Debug for ArcLayout<ANY_BUFFER, STATIC>

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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<const STATIC: bool> AnyBufferLayout for ArcLayout<true, STATIC>

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impl<const ANY_BUFFER: bool, const STATIC: bool> CloneNoAllocLayout for ArcLayout<ANY_BUFFER, STATIC>

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impl<const ANY_BUFFER: bool, const STATIC: bool> Layout for ArcLayout<ANY_BUFFER, STATIC>

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impl<const ANY_BUFFER: bool, const STATIC: bool> LayoutMut for ArcLayout<ANY_BUFFER, STATIC>

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impl<const ANY_BUFFER: bool> StaticLayout for ArcLayout<ANY_BUFFER, true>

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impl<const ANY_BUFFER: bool, const STATIC: bool> TruncateNoAllocLayout for ArcLayout<ANY_BUFFER, STATIC>

Auto Trait Implementations§

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impl<const ANY_BUFFER: bool, const STATIC: bool> Freeze for ArcLayout<ANY_BUFFER, STATIC>

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impl<const ANY_BUFFER: bool, const STATIC: bool> RefUnwindSafe for ArcLayout<ANY_BUFFER, STATIC>

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impl<const ANY_BUFFER: bool, const STATIC: bool> Send for ArcLayout<ANY_BUFFER, STATIC>

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impl<const ANY_BUFFER: bool, const STATIC: bool> Sync for ArcLayout<ANY_BUFFER, STATIC>

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impl<const ANY_BUFFER: bool, const STATIC: bool> Unpin for ArcLayout<ANY_BUFFER, STATIC>

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impl<const ANY_BUFFER: bool, const STATIC: bool> UnwindSafe for ArcLayout<ANY_BUFFER, STATIC>

Blanket Implementations§

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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> IntoEither for T

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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
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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
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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<const STATIC: bool, L> FromLayout<ArcLayout<false, STATIC>> for L
where L: Layout,

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impl<L1, L2> FromLayout<L1> for L2
where L1: AnyBufferLayout, L2: AnyBufferLayout,