<?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:----NzYxNzI3MzkzMzk2NzUzNyA0NDE1MDU0ODMwNzIzMzc0IDg4NDE0MzIyMTk0MzI4ODk=