for testing and deploying your application
for finding and fixing issues
for empowering human code reviews
<?php
declare(strict_types=1);
namespace phln\fn;
use function phln\fn\curryN;
const invoker = '\\phln\\fn\\invoker';
const 𝑓invoker = '\\phln\\fn\\𝑓invoker';
/**
* Turns a named method with a specified arity into a function that can be called directly supplied with arguments and a target object.
*
* The returned function is curried and accepts `arity + 1` parameters where the final parameter is the target object.
* @phlnSignature Int -> String -> (a -> b -> c -> ... -> n -> Object -> *)
* @phlnCategory function
* @since 1.2.0
* @param int $arity
* @param string $method
* @return \Closure
* @example
* $greeter = new class ()
* {
* public function hello($name, $lastname)
* return "Hello, {$name} {$lastname}!";
* }
* };
* $helloToJon = \phln\fn\invoker(2, 'hello')('Jon');
* $helloToJon('Snow'); // 'Hello, Jon Snow!'
*/
function invoker(int $arity = null, string $method): \Closure
{
return curryN(2, 𝑓invoker, func_get_args());
}
function 𝑓invoker(int $arity, string $method): \Closure
$wrapper = function(...$args) use ($arity, $method) {
$args = array_slice($args, 0, $arity + 1);
$object = array_pop($args);
assert(is_object($object));
return $object->$method(...$args);
};
return curryN($arity + 1, $wrapper);
baethon /
phln
