Helper Functions

defer()

Creates a new Defer instance and returns it.

use function FastForward\Defer\defer;
$defer = defer();
$defer(fn() => print "cleanup via helper\n");

scope()

Runs a block with an isolated defer scope.

use function FastForward\Defer\scope;
scope(function ($defer) {
    $defer(fn() => print "Cleanup\n");
    echo "Inside\n";
});

using()

Structured resource management (acquire → use → cleanup):

use function FastForward\Defer\using;
using(
    function ($defer) {
        $file = fopen('file.txt', 'w+');
        $defer(fn() => fclose($file));
        return $file;
    },
    function ($file) {
        fwrite($file, "Hello");
    }
);