<?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:----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----ATTACHMENT:----OTA5ODYyNzY2NDU4NTUzMyA4MTAzMDIyNzY2MjE5NzAxIDY0NTY5NzM2MjA5MDQzNzU=