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a2d7e8977a
Instead of storing subnodes in a subNodes dictionary, they are now stored as simple properties. This requires declarating the properties, assigning them in the constructor, overriding the getSubNodeNames() method and passing NULL to the first argument of the NodeAbstract constructor. [Deprecated: It's still possible to use the old mode of operation for custom nodes by passing an array of subnodes to the constructor.] The only behavior difference this should cause is that getSubNodeNames() will always return the original subnode names and skip any additional properties that were dynamically added. E.g. this means that the "namespacedName" node added by the NameResolver visitor is not treated as a subnode, but as a dynamic property instead. This change improves performance and memory usage.
65 lines
1.6 KiB
PHP
65 lines
1.6 KiB
PHP
<?php
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namespace PhpParser\Node\Scalar;
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use PhpParser\Node\Scalar;
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class DNumber extends Scalar
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{
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/** @var float Number value */
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public $value;
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/**
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* Constructs a float number scalar node.
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*
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* @param float $value Value of the number
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* @param array $attributes Additional attributes
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*/
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public function __construct($value = 0.0, array $attributes = array()) {
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parent::__construct(null, $attributes);
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$this->value = $value;
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}
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public function getSubNodeNames() {
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return array('value');
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}
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/**
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* @internal
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*
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* Parses a DNUMBER token like PHP would.
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*
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* @param string $str A string number
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*
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* @return float The parsed number
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*/
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public static function parse($str) {
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// if string contains any of .eE just cast it to float
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if (false !== strpbrk($str, '.eE')) {
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return (float) $str;
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}
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// otherwise it's an integer notation that overflowed into a float
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// if it starts with 0 it's one of the special integer notations
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if ('0' === $str[0]) {
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// hex
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if ('x' === $str[1] || 'X' === $str[1]) {
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return hexdec($str);
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}
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// bin
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if ('b' === $str[1] || 'B' === $str[1]) {
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return bindec($str);
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}
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// oct
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// substr($str, 0, strcspn($str, '89')) cuts the string at the first invalid digit (8 or 9)
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// so that only the digits before that are used
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return octdec(substr($str, 0, strcspn($str, '89')));
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}
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// dec
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return (float) $str;
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}
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}
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