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