Async

cel_cxx::marker

Enum Async

pub enum Async {}

Available on crate feature async only.

Expand description

Async-specific marker types and implementations.

This module contains the marker types and trait implementations for asynchronous function support. It’s only available when the async feature is enabled. Marker type for asynchronous functions.

This is a zero-sized type used to mark contexts that support asynchronous function evaluation.

§Examples

use cel_cxx::{Env, marker::Async};

// Create an async-capable environment
let env = Env::builder()
    .force_async()
    .build()?;

Trait Implementations§

impl FnMarkerAggr<()> for Async

Aggregating sync with async yields async.

When synchronous and asynchronous capabilities are combined, the result supports asynchronous operations.

type Output = Async

The resulting function marker after aggregation.

impl FnMarkerAggr<Async> for ()

Aggregating async with sync yields async.

When asynchronous and synchronous capabilities are combined, the result supports asynchronous operations.

type Output = Async

The resulting function marker after aggregation.

impl FnMarkerAggr<Async> for Async

Aggregating async with async yields async.

Combining two async contexts remains async.

type Output = Async

The resulting function marker after aggregation.

impl<'a, T> FnResult<'a, T> for Async

Asynchronous function results.

For asynchronous functions, the result type is wrapped in a BoxFuture. This allows async functions to return futures that can be awaited.

type Output = Pin<Box<dyn Future<Output = T> + Send + 'a>>

The output type for this function marker and base type.

impl<'f, F, Fut, R> IntoFunction<'f, Async> for F
where F: Fn() -> Fut + Send + Sync + 'f, Fut: Future<Output = R> + Send + 'f, R: IntoResult + Send + Sync + 'f,

fn into_function(self) -> Function<'f>

Convert this function into a type-erased implementation. Read more

impl<'f, F, Fut, R, A1> IntoFunction<'f, Async, (A1,)> for F
where F: Fn(A1) -> Fut + Send + Sync + 'f, Fut: Future<Output = R> + Send + 'f, R: IntoResult + Send + Sync + 'f, A1: FromValue + TypedValue + Send + Sync + 'f,

fn into_function(self) -> Function<'f>

Convert this function into a type-erased implementation. Read more

impl<'f, F, Fut, R, A1, A2> IntoFunction<'f, Async, (A1, A2)> for F
where F: Fn(A1, A2) -> Fut + Send + Sync + 'f, Fut: Future<Output = R> + Send + 'f, R: IntoResult + Send + Sync + 'f, A1: FromValue + TypedValue + Send + Sync + 'f, A2: FromValue + TypedValue + Send + Sync + 'f,

fn into_function(self) -> Function<'f>

Convert this function into a type-erased implementation. Read more

impl<'f, F, Fut, R, A1, A2, A3> IntoFunction<'f, Async, (A1, A2, A3)> for F
where F: Fn(A1, A2, A3) -> Fut + Send + Sync + 'f, Fut: Future<Output = R> + Send + 'f, R: IntoResult + Send + Sync + 'f, A1: FromValue + TypedValue + Send + Sync + 'f, A2: FromValue + TypedValue + Send + Sync + 'f, A3: FromValue + TypedValue + Send + Sync + 'f,

fn into_function(self) -> Function<'f>

Convert this function into a type-erased implementation. Read more

impl<'f, F, Fut, R, A1, A2, A3, A4> IntoFunction<'f, Async, (A1, A2, A3, A4)> for F
where F: Fn(A1, A2, A3, A4) -> Fut + Send + Sync + 'f, Fut: Future<Output = R> + Send + 'f, R: IntoResult + Send + Sync + 'f, A1: FromValue + TypedValue + Send + Sync + 'f, A2: FromValue + TypedValue + Send + Sync + 'f, A3: FromValue + TypedValue + Send + Sync + 'f, A4: FromValue + TypedValue + Send + Sync + 'f,

fn into_function(self) -> Function<'f>

Convert this function into a type-erased implementation. Read more

impl<'f, F, Fut, R, A1, A2, A3, A4, A5> IntoFunction<'f, Async, (A1, A2, A3, A4, A5)> for F
where F: Fn(A1, A2, A3, A4, A5) -> Fut + Send + Sync + 'f, Fut: Future<Output = R> + Send + 'f, R: IntoResult + Send + Sync + 'f, A1: FromValue + TypedValue + Send + Sync + 'f, A2: FromValue + TypedValue + Send + Sync + 'f, A3: FromValue + TypedValue + Send + Sync + 'f, A4: FromValue + TypedValue + Send + Sync + 'f, A5: FromValue + TypedValue + Send + Sync + 'f,

fn into_function(self) -> Function<'f>

Convert this function into a type-erased implementation. Read more

impl<'f, F, Fut, R, A1, A2, A3, A4, A5, A6> IntoFunction<'f, Async, (A1, A2, A3, A4, A5, A6)> for F
where F: Fn(A1, A2, A3, A4, A5, A6) -> Fut + Send + Sync + 'f, Fut: Future<Output = R> + Send + 'f, R: IntoResult + Send + Sync + 'f, A1: FromValue + TypedValue + Send + Sync + 'f, A2: FromValue + TypedValue + Send + Sync + 'f, A3: FromValue + TypedValue + Send + Sync + 'f, A4: FromValue + TypedValue + Send + Sync + 'f, A5: FromValue + TypedValue + Send + Sync + 'f, A6: FromValue + TypedValue + Send + Sync + 'f,

fn into_function(self) -> Function<'f>

Convert this function into a type-erased implementation. Read more

impl<'f, F, Fut, R, A1, A2, A3, A4, A5, A6, A7> IntoFunction<'f, Async, (A1, A2, A3, A4, A5, A6, A7)> for F
where F: Fn(A1, A2, A3, A4, A5, A6, A7) -> Fut + Send + Sync + 'f, Fut: Future<Output = R> + Send + 'f, R: IntoResult + Send + Sync + 'f, A1: FromValue + TypedValue + Send + Sync + 'f, A2: FromValue + TypedValue + Send + Sync + 'f, A3: FromValue + TypedValue + Send + Sync + 'f, A4: FromValue + TypedValue + Send + Sync + 'f, A5: FromValue + TypedValue + Send + Sync + 'f, A6: FromValue + TypedValue + Send + Sync + 'f, A7: FromValue + TypedValue + Send + Sync + 'f,

fn into_function(self) -> Function<'f>

Convert this function into a type-erased implementation. Read more

impl<'f, F, Fut, R, A1, A2, A3, A4, A5, A6, A7, A8> IntoFunction<'f, Async, (A1, A2, A3, A4, A5, A6, A7, A8)> for F
where F: Fn(A1, A2, A3, A4, A5, A6, A7, A8) -> Fut + Send + Sync + 'f, Fut: Future<Output = R> + Send + 'f, R: IntoResult + Send + Sync + 'f, A1: FromValue + TypedValue + Send + Sync + 'f, A2: FromValue + TypedValue + Send + Sync + 'f, A3: FromValue + TypedValue + Send + Sync + 'f, A4: FromValue + TypedValue + Send + Sync + 'f, A5: FromValue + TypedValue + Send + Sync + 'f, A6: FromValue + TypedValue + Send + Sync + 'f, A7: FromValue + TypedValue + Send + Sync + 'f, A8: FromValue + TypedValue + Send + Sync + 'f,

fn into_function(self) -> Function<'f>

Convert this function into a type-erased implementation. Read more

impl<'f, F, Fut, R, A1, A2, A3, A4, A5, A6, A7, A8, A9> IntoFunction<'f, Async, (A1, A2, A3, A4, A5, A6, A7, A8, A9)> for F
where F: Fn(A1, A2, A3, A4, A5, A6, A7, A8, A9) -> Fut + Send + Sync + 'f, Fut: Future<Output = R> + Send + 'f, R: IntoResult + Send + Sync + 'f, A1: FromValue + TypedValue + Send + Sync + 'f, A2: FromValue + TypedValue + Send + Sync + 'f, A3: FromValue + TypedValue + Send + Sync + 'f, A4: FromValue + TypedValue + Send + Sync + 'f, A5: FromValue + TypedValue + Send + Sync + 'f, A6: FromValue + TypedValue + Send + Sync + 'f, A7: FromValue + TypedValue + Send + Sync + 'f, A8: FromValue + TypedValue + Send + Sync + 'f, A9: FromValue + TypedValue + Send + Sync + 'f,

fn into_function(self) -> Function<'f>

Convert this function into a type-erased implementation. Read more

impl<'f, F, Fut, R, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10> IntoFunction<'f, Async, (A1, A2, A3, A4, A5, A6, A7, A8, A9, A10)> for F
where F: Fn(A1, A2, A3, A4, A5, A6, A7, A8, A9, A10) -> Fut + Send + Sync + 'f, Fut: Future<Output = R> + Send + 'f, R: IntoResult + Send + Sync + 'f, A1: FromValue + TypedValue + Send + Sync + 'f, A2: FromValue + TypedValue + Send + Sync + 'f, A3: FromValue + TypedValue + Send + Sync + 'f, A4: FromValue + TypedValue + Send + Sync + 'f, A5: FromValue + TypedValue + Send + Sync + 'f, A6: FromValue + TypedValue + Send + Sync + 'f, A7: FromValue + TypedValue + Send + Sync + 'f, A8: FromValue + TypedValue + Send + Sync + 'f, A9: FromValue + TypedValue + Send + Sync + 'f, A10: FromValue + TypedValue + Send + Sync + 'f,

fn into_function(self) -> Function<'f>

Convert this function into a type-erased implementation. Read more

impl FnMarker for Async

Function marker implementation for async functions.

impl FnMarkerAsync for Async

Async function marker trait implementation.

Auto Trait Implementations§

impl Freeze for Async

impl RefUnwindSafe for Async

impl Send for Async

impl Sync for Async

impl Unpin for Async

impl UnwindSafe for Async

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> 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, 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.