<?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:----OTk4NjA4ODQ4NzIxMDk0MSAzMDM2ODM1MTkzMDMyNTQxIDQ2ODIzMTY5MDAyNTYxMzE=