Struct sp_runtime_interface::wasm::ExchangeableFunction

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pub struct ExchangeableFunction<T>(/* private fields */);
Expand description

A function which implementation can be exchanged.

Internally this works by swapping function pointers.

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impl<T> ExchangeableFunction<T>

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pub const fn new(impl_: T) -> Self

Create a new instance of ExchangeableFunction.

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impl<T: Copy> ExchangeableFunction<T>

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pub fn replace_implementation( &'static self, new_impl: T ) -> RestoreImplementation<T>

Replace the implementation with new_impl.

Panics

Panics when trying to replace an already replaced implementation.

Returns

Returns the original implementation wrapped in RestoreImplementation.

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pub fn get(&self) -> T

Returns the internal function pointer.

Trait Implementations§

Auto Trait Implementations§

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impl<T> !RefUnwindSafe for ExchangeableFunction<T>

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impl<T> Send for ExchangeableFunction<T>where T: Send,

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impl<T> Unpin for ExchangeableFunction<T>where T: Unpin,

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impl<T> UnwindSafe for ExchangeableFunction<T>where T: UnwindSafe,

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,

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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<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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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>,

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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, 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