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ParserFactory.php
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ParserFactory.php
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<?php declare(strict_types=1);
namespace PhpParser;
use PhpParser\Lexer\Emulative;
use PhpParser\Parser\Php7;
class ParserFactory
{
const PREFER_PHP7 = 1;
const PREFER_PHP5 = 2;
const ONLY_PHP7 = 3;
const ONLY_PHP5 = 4;
/**
* Creates a Parser instance, according to the provided kind.
*
* @param int $kind One of ::PREFER_PHP7, ::PREFER_PHP5, ::ONLY_PHP7 or ::ONLY_PHP5
* @param Lexer|null $lexer Lexer to use. Defaults to emulative lexer when not specified
* @param array $parserOptions Parser options. See ParserAbstract::__construct() argument
*
* @return Parser The parser instance
*/
public function create(int $kind, ?Lexer $lexer = null, array $parserOptions = []) : Parser {
if (null === $lexer) {
$lexer = new Lexer\Emulative();
}
switch ($kind) {
case self::PREFER_PHP7:
return new Parser\Multiple([
new Parser\Php7($lexer, $parserOptions), new Parser\Php5($lexer, $parserOptions)
]);
case self::PREFER_PHP5:
return new Parser\Multiple([
new Parser\Php5($lexer, $parserOptions), new Parser\Php7($lexer, $parserOptions)
]);
case self::ONLY_PHP7:
return new Parser\Php7($lexer, $parserOptions);
case self::ONLY_PHP5:
return new Parser\Php5($lexer, $parserOptions);
default:
throw new \LogicException(
'Kind must be one of ::PREFER_PHP7, ::PREFER_PHP5, ::ONLY_PHP7 or ::ONLY_PHP5'
);
}
}
/**
* Create a parser targeting the newest version supported by this library. Code for older
* versions will be accepted if there have been no relevant backwards-compatibility breaks in
* PHP.
*
* All supported lexer attributes (comments, startLine, endLine, startTokenPos, endTokenPos,
* startFilePos, endFilePos) will be enabled.
*/
public function createForNewestSupportedVersion(): Parser {
return new Php7(new Emulative($this->getLexerOptions()));
}
/**
* 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.
*
* All supported lexer attributes (comments, startLine, endLine, startTokenPos, endTokenPos,
* startFilePos, endFilePos) will be enabled.
*/
public function createForHostVersion(): Parser {
return new Php7(new Lexer($this->getLexerOptions()));
}
private function getLexerOptions(): array {
return ['usedAttributes' => [
'comments', 'startLine', 'endLine', 'startTokenPos', 'endTokenPos', 'startFilePos', 'endFilePos',
]];
}
}

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Wed, Aug 19, 13:44 (3 w, 3 d ago)
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ParserFactory.php (2 KB)

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