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<?php |
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namespace WPIDE\App\Helpers; |
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|
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use PhpParser\ParserFactory; |
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use WPIDE\App\Utils\Exception; |
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|
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class PhpValidator |
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{ |
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|
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public static function validate($content) |
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{ |
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self::parse($content); |
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self::validateConstants($content); |
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} |
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|
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public static function parse($content) { |
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|
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$parser = (new ParserFactory)->create(ParserFactory::PREFER_PHP7); |
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$parser->parse($content); |
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} |
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|
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/** |
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* @throws Exception |
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*/ |
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protected static function validateConstants($content) |
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{ |
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|
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$pattern = '/define\((.+?),.+?\)/'; |
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if (preg_match_all($pattern, $content, $matches)) { |
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|
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$matches = array_map(function ($match) { |
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return trim(str_replace(['"', "'"], "", $match)); |
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}, $matches[1]); |
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|
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$duplicates = array(); |
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foreach (array_count_values($matches) as $val => $c) { |
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if ($c > 1) { |
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$duplicates[] = $val; |
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} |
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} |
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|
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if (!empty($duplicates)) { |
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$constant = array_shift($duplicates); |
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throw new Exception('Constant ' . $constant . ' already defined!'); |
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} |
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} |
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} |
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} |
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|
