<?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:----NjA4MjI2MTA0NjU0MzAzIDQ4NzYzMjQzMTY3Njc5MTUgMjE3NTI0MDE1OTgxNTUxNA==