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<?php

/**
 * This file is part of the Nette Framework (https://nette.org)
 * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
 */
declare (strict_types=1);
namespace RectorPrefix202410\Nette\Utils;

use RectorPrefix202410\Nette;
use function is_array, is_object, is_string;
/**
 * PHP callable tools.
 */
final class Callback
{
    use Nette\StaticClass;
    /**
     * Invokes internal PHP function with own error handler.
     * @return mixed
     */
    public static function invokeSafe(string $function, array $args, callable $onError)
    {
        $prev = \set_error_handler(function ($severity, $message, $file) use($onError, &$prev, $function) : ?bool {
            if ($file === __FILE__) {
                $msg = \ini_get('html_errors') ? Html::htmlToText($message) : $message;
                $msg = \preg_replace("#^{$function}\\(.*?\\): #", '', $msg);
                if ($onError($msg, $severity) !== \false) {
                    return null;
                }
            }
            return $prev ? $prev(...\func_get_args()) : \false;
        });
        try {
            return $function(...$args);
        } finally {
            \restore_error_handler();
        }
    }
    /**
     * Checks that $callable is valid PHP callback. Otherwise throws exception. If the $syntax is set to true, only verifies
     * that $callable has a valid structure to be used as a callback, but does not verify if the class or method actually exists.
     * @return callable
     * @throws Nette\InvalidArgumentException
     * @param mixed $callable
     */
    public static function check($callable, bool $syntax = \false)
    {
        if (!\is_callable($callable, $syntax)) {
            throw new Nette\InvalidArgumentException($syntax ? 'Given value is not a callable type.' : \sprintf("Callback '%s' is not callable.", self::toString($callable)));
        }
        return $callable;
    }
    /**
     * Converts PHP callback to textual form. Class or method may not exists.
     * @param mixed $callable
     */
    public static function toString($callable) : string
    {
        if ($callable instanceof \Closure) {
            $inner = self::unwrap($callable);
            return '{closure' . ($inner instanceof \Closure ? '}' : ' ' . self::toString($inner) . '}');
        } else {
            \is_callable(is_object($callable) ? [$callable, '__invoke'] : $callable, \true, $textual);
            return $textual;
        }
    }
    /**
     * Returns reflection for method or function used in PHP callback.
     * @param  callable  $callable  type check is escalated to ReflectionException
     * @throws \ReflectionException  if callback is not valid
     * @return \ReflectionMethod|\ReflectionFunction
     */
    public static function toReflection($callable)
    {
        if ($callable instanceof \Closure) {
            $callable = self::unwrap($callable);
        }
        if (is_string($callable) && \strpos($callable, '::') !== \false) {
            return new ReflectionMethod(...\explode('::', $callable, 2));
        } elseif (is_array($callable)) {
            return new ReflectionMethod($callable[0], $callable[1]);
        } elseif (is_object($callable) && !$callable instanceof \Closure) {
            return new ReflectionMethod($callable, '__invoke');
        } else {
            return new \ReflectionFunction($callable);
        }
    }
    /**
     * Checks whether PHP callback is function or static method.
     */
    public static function isStatic(callable $callable) : bool
    {
        return is_string(is_array($callable) ? $callable[0] : $callable);
    }
    /**
     * Unwraps closure created by Closure::fromCallable().
     * @return mixed[]|callable
     */
    public static function unwrap(\Closure $closure)
    {
        $r = new \ReflectionFunction($closure);
        $class = ($nullsafeVariable1 = $r->getClosureScopeClass()) ? $nullsafeVariable1->name : null;
        if (\substr_compare($r->name, '}', -\strlen('}')) === 0) {
            return $closure;
        } elseif (($obj = $r->getClosureThis()) && \get_class($obj) === $class) {
            return [$obj, $r->name];
        } elseif ($class) {
            return [$class, $r->name];
        } else {
            return $r->name;
        }
    }
}