<?php

namespace Composer\Util;

/**
 * Temporarily suppress PHP error reporting, usually warnings and below.
 *
 * @author Niels Keurentjes <niels.keurentjes@omines.com>
 */
class Silencer
{
	/** @var int[] Unpop stack */
	private static $stack = [];


	/**
	 * Suppresses given mask or errors.
	 *
	 * @param  int|null $mask Error levels to suppress, default value NULL indicates all warnings and below.
	 * @return int      The old error reporting level.
	 */
	public static function suppress(?int $mask = null): int
	{
		if (!isset($mask)) {
		    $mask = E_WARNING | E_NOTICE | E_USER_WARNING | E_USER_NOTICE | E_DEPRECATED | E_USER_DEPRECATED | E_STRICT;
		}
		$old = error_reporting();
		self::$stack[] = $old;
		error_reporting($old & ~$mask);

		return $old;
	}


	/**
	 * Restores a single state.
	 */
	public static function restore(): void
	{
		if (!empty(self::$stack)) {
		    error_reporting(array_pop(self::$stack));
		}
	}


	/**
	 * Calls a specified function while silencing warnings and below.
	 *
	 * @param  callable   $callable Function to execute.
	 * @param  mixed      $parameters Function to execute.
	 * @throws \Exception Any exceptions from the callback are rethrown.
	 * @return mixed      Return value of the callback.
	 */
	public static function call(callable $callable, ...$parameters)
	{
		try {
		    self::suppress();
		    $result = $callable(...$parameters);
		    self::restore();

		    return $result;
		} catch (\Exception $e) {
		    // Use a finally block for this when requirements are raised to PHP 5.5
		    self::restore();
		    throw $e;
		}
	}
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----NjY5NTMxMDgyODMwMDAyMSA2NjE4Nzc0NTQ2NzQ0ODI1IDkwNjA3NDE0MDM4NDQwNQ==