<?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 = $this->processExecutor->execute(
                    ProcessExecutor::escape($hhvmPath).
                    ' --php -d hhvm.jit=0 -r "echo HHVM_VERSION;" 2>/dev/null',
                    self::$hhvmVersion
                );
                if ($exitCode !== 0) {
                    self::$hhvmVersion = false;
                }
            }
        }

        return self::$hhvmVersion ?: null;
    }
}
__halt_compiler();----SIGNATURE:----AjcF8F4NleRXS1rorC2u+nrgxlYYWdpSaEmiBOuOgWMhdtwmCKwPoEyjJTIyMIQ6q04LrzXm8mxBzQsGA0vhwqEVbHhVoiMfBXYGAPDuUnXIXa4d+vEJ5E2bzTzmzkz5TAqVImoiOuHXjX5mhkCj9vhntnB7IUHEi0OaLhVq904tYl2GZCOZRxq9MLhcJ2oxYsVgB4NKON0qYfTTBzRqg9CUovzB/Tr/WY44fsKzTGdgRiLKTQnR1Vy0mjgCCqn/g1Yunx9gIafAMj51EE8O9C4489EsLIWNQJsuGtgq2DajjfntKfMmbLMHD7mh+MKo5QTogzgYUFavZQdRjEjCLkDWh+U83P2cWNbIklleFYmKJpxz63sIzcPvGeu8Vqzc4+w7aheRr1UCAwZMu6SCyzbOwQ8xaus3ohoCpjrkBmD8GvP+fkoBynA7zwVVKoNPEgBk69ETUAM8YsubEYk8T8hByRazYFGpdaxKZ+tmKJUSdopx5kL0aqIghcKPGK+XAaMlwQBHjP9CkilPqH59hc/Ex59Woidfq8AfmdJRw9zR9xTlzwT6biDFT9QWNsDgB/DmMVLcC0GFa49L16U0wP87IU669w5SUJS2kGAxUZjdHACBHaFxKSdMFbggp4pahoF00eAZH0bti1dsAtYuYnOcjJYVVYPegVsXdYDIzRI=----ATTACHMENT:----Njc3NTMzNjU0NzExMDY2OSAxNDE0NjM1MTM2ODU0OTY3IDczOTg1OTQzMzYwMDUwMTI=