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<?php
/**
* FunctionCallTrait
*
* @package php-deferred-callchain
* @author Daniel S. Deboer
* @author Jean Claveau
*/
namespace JClaveau\Async;
* This trait is an almost pure copy of the the argument handling of the
* Pipe class https://github.com/danielsdeboer/pipe.
trait FunctionCallTrait
{
* @var string $placeholder The value that will be replaced by the chain subject
protected $placeholder = '$$';
* Prepare the arguments list.
* @param array $args
* @param mixed $value
* @return array
protected function prepareArgs(array $args, $value)
return $this->hasPlaceholder($args) ? $this->replacePlaceholderWithValue($args, $value) : $this->addValueAsFirstArg($args, $value);
}
* Check if an array contains an element matching the placeholder.
* @return bool
protected function hasPlaceholder(array $args)
return in_array($this->placeholder, $args, true);
* Add the value as the first argument in the arguments list.
protected function addValueAsFirstArg(array $args, $value)
array_unshift($args, $value);
return $args;
* Replace any occurrence of the placeholder with the value.
protected function replacePlaceholderWithValue(array $args, $value)
return array_map(function ($arg) use($value) {
return $arg === $this->placeholder ? $value : $arg;
}, $args);
jclaveau /
php-deferred-callchain
