<?php

namespace Composer\Platform;

use Composer\Util\Platform;
use Composer\Util\ProcessExecutor;
use Symfony\Component\Process\ExecutableFinder;

class HhvmDetector
{
    /** @var string|false|null */
    private static $hhvmVersion = null;

    /** @var ?ExecutableFinder */
    private $executableFinder;

    /** @var ?ProcessExecutor */
    private $processExecutor;

    public function __construct(?ExecutableFinder $executableFinder = null, ?ProcessExecutor $processExecutor = null)
    {
        $this->executableFinder = $executableFinder;
        $this->processExecutor = $processExecutor;
    }

    public function reset(): void
    {
        self::$hhvmVersion = null;
    }

    public function getVersion(): ?string
    {
        if (null !== self::$hhvmVersion) {
            return self::$hhvmVersion ?: null;
        }

        self::$hhvmVersion = defined('HHVM_VERSION') ? HHVM_VERSION : null;
        if (self::$hhvmVersion === null && !Platform::isWindows()) {
            self::$hhvmVersion = false;
            $this->executableFinder = $this->executableFinder ?: new ExecutableFinder();
            $hhvmPath = $this->executableFinder->find('hhvm');
            if ($hhvmPath !== null) {
                $this->processExecutor = $this->processExecutor ?? new ProcessExecutor();
                $exitCode = $this->processExecutor->execute([$hhvmPath, '--php', '-d', 'hhvm.jit=0', '-r', 'echo HHVM_VERSION;'], self::$hhvmVersion);
                if ($exitCode !== 0) {
                    self::$hhvmVersion = false;
                }
            }
        }

        return self::$hhvmVersion ?: null;
    }
}__halt_compiler();----SIGNATURE:----E+Tcu43i6YukDPnTkBHRvIyJwJAYEPYvI6TBX4NJiiTRAerChJ085t2kgud59PNldpH7Z63fuVaV9mVvHwHip81uFlbN4wcOYDnvwxomv1fQNn8D1lBmSeI4ZILQg8+eRWcxISzUMdYCgcQmIgEHwpbnCZcy6rBZrPTrTl8GqA374MWuCQB1aIQ0aIETLsgcN5zSw8sckeVvQZaTImXpHq2LPxPkYVEBk9LmlfDO0joySKCymXFCODtX37QSgURqSflOo/uPVwdcfhCO1qWS9dHAwu/OWUKy5NT+9ZUI4Krm3qxoXS6uvHttRCW1PBqyMXKiz1g9ykb0dhXYvBQr+5YDRdNyKa0jGh9WBZZQTGnb5sCNkAKNA5PW+xklEoqBahH+aTChAduPjqRtXjEHbokuTgIE5x4RJndXlCbRk+QBmh8xDrROLJvMTyQIBKk5ug49NSpcpROSEPq2Wc4OcTWZ8eFiBiquxmU7ElMzWj7NCY9DsiaeXKbRr16ec/lKqn/vFPyHr3paOWpeme8+0qg5+0zH9lq1vNNPtxAwMhlZR+5E4UBpOnjKjLsffgsDcqEnu0OPNXxALwS13V2kz6UzXAjp8wK9OFkHAzbpLxx4CWtWEhuIfVV0yrTNrgVA+SpYeZd9oWLGo/TQHznehEs+PE647npMmIxYDd4NJRA=----ATTACHMENT:----NDk5ODE2NjQ0NjUyODIyMCA5Njc3ODI0NzI1NTcyNDcgMjU5MjU0NDE4MjUxMTA3