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<?php
namespace Desmond\functions\core;
use Desmond\functions\DesmondFunction;
use Desmond\ArgumentHelper;
use Desmond\exceptions\ArgumentException;
class Map extends DesmondFunction
{
use ArgumentHelper;
public function id()
return 'map';
}
public function run(array $args)
$args = $this->cloneArgs($args);
$this->requireArgTypes($args);
$collection = $args[0];
$values = $collection->value();
$function = $args[1];
foreach ($values as $key => $value) {
$collection->set(
$function->run([$value]), $key);
return $collection;
private function requireArgTypes(array $args)
$this->expectArguments(
'map',
[['List', 'Vector', 'Hash']],
$args
);
if (!isset($args[1]) || !($args[1] instanceof DesmondFunction)) {
throw new ArgumentException('"map" expects argument 1 to be a function.');
Archer70 /
desmond
