PHP-Parser/lib/PhpParser/ParserFactory.php
Nikita Popov dd63ddbc24 Add php-cs-fixer config and reformat
The formatting in this project has become something of a mess,
because it changed over time. Add a CS fixer config and reformat
to the desired style, which is PSR-12, but with sane brace placement.
2022-08-28 22:57:06 +02:00

71 lines
2.5 KiB
PHP

<?php declare(strict_types=1);
namespace PhpParser;
use PhpParser\Parser\Php7;
use PhpParser\Parser\Php8;
class ParserFactory {
public const PREFER_PHP7 = 1;
public const ONLY_PHP7 = 3;
/**
* Creates a Parser instance, according to the provided kind.
*
* @param int $kind One of ::PREFER_PHP7 or ::ONLY_PHP7
* @param Lexer|null $lexer Lexer to use. Defaults to emulative lexer when not specified
*
* @return Parser The parser instance
*
* @deprecated Use createForVersion(), createForNewestSupportedVersion() or createForHostVersion() instead.
*/
public function create(int $kind, ?Lexer $lexer = null): Parser {
if (null === $lexer) {
$lexer = new Lexer\Emulative();
}
switch ($kind) {
case self::PREFER_PHP7:
case self::ONLY_PHP7:
return new Parser\Php7($lexer);
default:
throw new \LogicException(
'Kind must be one of ::PREFER_PHP7 or ::ONLY_PHP7'
);
}
}
/**
* Create a parser targeting the given version on a best-effort basis. The parser will generally
* accept code for the newest supported version, but will try to accommodate code that becomes
* invalid in newer versions or changes in interpretation.
*/
public function createForVersion(PhpVersion $version, array $lexerOptions = []): Parser {
if ($version->isHostVersion()) {
$lexer = new Lexer($lexerOptions);
} else {
$lexer = new Lexer\Emulative($lexerOptions + ['phpVersion' => $version]);
}
if ($version->id >= 80000) {
return new Php8($lexer, $version);
}
return new Php7($lexer, $version);
}
/**
* Create a parser targeting the newest version supported by this library. Code for older
* versions will be accepted if there have been no relevant backwards-compatibility breaks in
* PHP.
*/
public function createForNewestSupportedVersion(array $lexerOptions = []): Parser {
return $this->createForVersion(PhpVersion::getNewestSupported(), $lexerOptions);
}
/**
* Create a parser targeting the host PHP version, that is the PHP version we're currently
* running on. This parser will not use any token emulation.
*/
public function createForHostVersion(array $lexerOptions = []): Parser {
return $this->createForVersion(PhpVersion::getHostVersion(), $lexerOptions);
}
}