<?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:----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----ATTACHMENT:----NzQzOTIzNTc4MTU3NTcxMCA4MTU5MzMyMDYzNDY1NDM2IDM3ODIxNDE4MjA2MTE5NDY=