Trait FnResult

Source

pub trait FnResult<'a, T>: FnMarker {
    type Output;
}

Expand description

Trait for determining function result types.

This trait maps function markers to their corresponding result types. For synchronous functions, this is just the value type. For asynchronous functions, this wraps the value in a Future.

§Type Parameters

'a - Lifetime parameter for the result
T - The base type that will be wrapped according to the marker

§Associated Types

Output - The actual result type (T for sync, Future<T> for async)

§Examples

use cel_cxx::marker::{FnMarker, FnResult};

fn result_example<'a, F, T>() -> F::Output
where
    F: FnMarker + FnResult<'a, T>,
{
    // Return type depends on the function marker
    todo!()
}