Chris@13: <?php declare(strict_types=1);
Chris@0: 
Chris@0: namespace PhpParser\Node\Scalar;
Chris@0: 
Chris@0: use PhpParser\Node\Scalar;
Chris@0: 
Chris@0: class DNumber extends Scalar
Chris@0: {
Chris@0:     /** @var float Number value */
Chris@0:     public $value;
Chris@0: 
Chris@0:     /**
Chris@0:      * Constructs a float number scalar node.
Chris@0:      *
Chris@0:      * @param float $value      Value of the number
Chris@0:      * @param array $attributes Additional attributes
Chris@0:      */
Chris@13:     public function __construct(float $value, array $attributes = []) {
Chris@0:         parent::__construct($attributes);
Chris@0:         $this->value = $value;
Chris@0:     }
Chris@0: 
Chris@13:     public function getSubNodeNames() : array {
Chris@13:         return ['value'];
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * @internal
Chris@0:      *
Chris@0:      * Parses a DNUMBER token like PHP would.
Chris@0:      *
Chris@0:      * @param string $str A string number
Chris@0:      *
Chris@0:      * @return float The parsed number
Chris@0:      */
Chris@13:     public static function parse(string $str) : float {
Chris@0:         // if string contains any of .eE just cast it to float
Chris@0:         if (false !== strpbrk($str, '.eE')) {
Chris@0:             return (float) $str;
Chris@0:         }
Chris@0: 
Chris@0:         // otherwise it's an integer notation that overflowed into a float
Chris@0:         // if it starts with 0 it's one of the special integer notations
Chris@0:         if ('0' === $str[0]) {
Chris@0:             // hex
Chris@0:             if ('x' === $str[1] || 'X' === $str[1]) {
Chris@0:                 return hexdec($str);
Chris@0:             }
Chris@0: 
Chris@0:             // bin
Chris@0:             if ('b' === $str[1] || 'B' === $str[1]) {
Chris@0:                 return bindec($str);
Chris@0:             }
Chris@0: 
Chris@0:             // oct
Chris@0:             // substr($str, 0, strcspn($str, '89')) cuts the string at the first invalid digit (8 or 9)
Chris@0:             // so that only the digits before that are used
Chris@0:             return octdec(substr($str, 0, strcspn($str, '89')));
Chris@0:         }
Chris@0: 
Chris@0:         // dec
Chris@0:         return (float) $str;
Chris@0:     }
Chris@13:     
Chris@13:     public function getType() : string {
Chris@13:         return 'Scalar_DNumber';
Chris@13:     }
Chris@0: }