[4.x] Run tests on PHP 8.3 and update test suite

[4.x] Add template annotations

These annotations will aid static analyses like PHPStan and Psalm to
enhance type-safety for thi...

[4.x] Update test suite to avoid unhandled promise rejections

Minor documentation improvements

[4.x] Add PHPStan to test environment with `max` level

[4.x] Template params can only have one argument

The fact that a promise can also be rejected with a Throwable and/or Exception is implied and th...

Add new `delay()` function to delay program execution

[4.x] Update test suite and report failed assertions

[4.x] Test on PHP 8.2

With PHP 8.2 coming out later this year, we should be reading for it's release to ensure all out...

Improve examples for `async()` and `await()`

[4.x] Forward compatibility with upcoming Promise v3

[4.x] Consistent cancellation semantics for `async()` and `coroutine()`

chore(docs): remove leading dollar sign

[4.x] Support iterable type for `parallel()` + `series()` + `waterfall()`

[4.x] Add badge to show number of project installations

Skip cancellation of promise within `Fiber` without cancellation support

Improve `async()` by making its promises cancellable

Since `async()` returns a promise and those are normally cancelable, implementing this puts them...

Improve `await()` to avoid unneeded `futureTick()` calls

Improve `async()` to avoid unneeded `futureTick()` calls

Rename `main` branch to `4.x` and update installation instructions

Clean up any garbage references when awaiting rejected promise

Add documentation for `async()` function and Fiber-based `await()`

Fast forward resolved/rejected promises with fibers await

This makes `await`ing an already resolved promise significantly faster.

Make `async` return a callable

By making this change `async()` can now also by used in event loop callbacks such as timers:

``...

Add Fiber-based `async` and `await` functions

While there is no technical need to add this for this, we also don't want to block other project...

Require PHP 8.1+ and add `mixed` type declarations

Support promise cancellation for `coroutine()` and clean up garbage references

Require PHP 7.1+ and add type declarations

Change namespace from `Clue\React\Block` to `React\Async` and update all
tests with merged names...

Use Promise-based APIs instead of callbacks (continuation-passing style)

Change to use functional API instead of static `Util` class

Support upcoming PHP 8.1 and update test suite for PHPUnit 9

Update project structure to bring in line with ReactPHP and add `.gitattributes` to exclude dev ...

Add PHPUnit and use GitHub actions for continuous integration (CI)