async_function

A function can mark itself as a coroutine by having a return type of async_function.

The promise type for an async_function must satisfy the Execution concept. The default promise type is the execution_promise.

Example

async_function<>
foo() noexcept
{
    /* async behaviour goes here... */
}

template<details::Execution PromiseType = execution_promise> class zab::async_function

This class describes an asynchronous function.

This classed should only be used as the return type of a function to enable coroutines. It should never be stored and only kept as a tempory object.

For example: ``` auto foo() -> async_function { async behaviour };

void bar() { … foo(); … }

Public Types

Public Functions

inline async_function(coro_handle)

Constructor no-ops.

async_function(const async_function&) = delete

Deleted copy constructor.

async_function(async_function&&) = delete

Deleted move constructor.

Deleted Assignment operator.