<?php declare(strict_types=1);
namespace Invoker\Reflection;
use Invoker\Exception\NotCallableException;
use ReflectionException;
use ReflectionFunction;
use ReflectionFunctionAbstract;
use ReflectionMethod;
/**
* Create a reflection object from a callable.
*/
class CallableReflection
{
/**
* @throws NotCallableException|ReflectionException
*/
public static function create(callable $callable): ReflectionFunctionAbstract
{
// Closure
if ($callable instanceof \Closure) {
return new ReflectionFunction($callable);
}
// Array callable
if (is_array($callable)) {
[$class, $method] = $callable;
if (! method_exists($class, $method)) {
throw NotCallableException::fromInvalidCallable($callable);
}
return new ReflectionMethod($class, $method);
}
// Callable object (i.e. implementing __invoke())
if (is_object($callable) && method_exists($callable, '__invoke')) {
return new ReflectionMethod($callable, '__invoke');
}
// Callable class (i.e. implementing __invoke())
if (is_string($callable) && class_exists($callable) && method_exists($callable, '__invoke')) {
return new ReflectionMethod($callable, '__invoke');
}
// Standard function
if (is_string($callable) && function_exists($callable)) {
return new ReflectionFunction($callable);
}
throw new NotCallableException(sprintf(
'%s is not a callable',
is_string($callable) ? $callable : 'Instance of ' . get_class($callable)
));
}
}