pub enum WrappedFFIValue<T, O = ()> {
    Wrapped(T),
    WrappedAndOwned(T, O),
}
Expand description

Represents a wrapped ffi value.

It is either the ffi value itself or the ffi value plus some other owned value. By providing support for storing another owned value besides the actual ffi value certain performance optimizations can be applied. For example using the pointer to a Vec<u8>, while using the pointer to a SCALE encoded Vec<u8> that is stored in this wrapper for any other Vec<T>.

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Wrapped(T)

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WrappedAndOwned(T, O)

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impl<T: Copy, O> WrappedFFIValue<T, O>

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pub fn get(&self) -> T

Returns the wrapped ffi value.

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impl<T, O> From<(T, O)> for WrappedFFIValue<T, O>

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fn from(val: (T, O)) -> Self

Converts to this type from the input type.
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impl<T, O> From<T> for WrappedFFIValue<T, O>

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fn from(val: T) -> Self

Converts to this type from the input type.

Auto Trait Implementations§

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impl<T, O> RefUnwindSafe for WrappedFFIValue<T, O>where O: RefUnwindSafe, T: RefUnwindSafe,

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impl<T, O> Send for WrappedFFIValue<T, O>where O: Send, T: Send,

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impl<T, O> Sync for WrappedFFIValue<T, O>where O: Sync, T: Sync,

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impl<T, O> Unpin for WrappedFFIValue<T, O>where O: Unpin, T: Unpin,

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impl<T, O> UnwindSafe for WrappedFFIValue<T, O>where O: UnwindSafe, T: UnwindSafe,

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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,

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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 Twhere 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<!> for T

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fn from(t: !) -> T

Converts to this type from the input type.
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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> FromFd for Twhere T: From<OwnedFd>,

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fn from_fd(owned_fd: OwnedFd) -> T

👎Deprecated since 1.0.0: FromFd::from_fd is replaced by From<OwnedFd>::from
Constructs a new instance of Self from the given file descriptor. Read more
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fn from_into_fd<Owned>(into_owned: Owned) -> Selfwhere Owned: Into<OwnedFd>, Self: Sized + From<OwnedFd>,

Constructs a new instance of Self from the given file descriptor converted from into_owned. Read more
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impl<T> FromFilelike for Twhere T: From<OwnedFd>,

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fn from_filelike(owned: OwnedFd) -> T

Constructs a new instance of Self from the given filelike object. Read more
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fn from_into_filelike<Owned>(owned: Owned) -> Twhere Owned: IntoFilelike,

Constructs a new instance of Self from the given filelike object converted from into_owned. Read more
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impl<T> FromSocketlike for Twhere T: From<OwnedFd>,

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fn from_socketlike(owned: OwnedFd) -> T

Constructs a new instance of Self from the given socketlike object.
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fn from_into_socketlike<Owned>(owned: Owned) -> Twhere Owned: IntoSocketlike,

Constructs a new instance of Self from the given socketlike object converted from into_owned.
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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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> Pointable for T

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const ALIGN: usize = mem::align_of::<T>()

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Same<T> for T

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type Output = T

Should always be Self
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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.
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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 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.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for Twhere V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<T> JsonSchemaMaybe for T

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impl<T> MaybeRefUnwindSafe for Twhere T: RefUnwindSafe,