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File Content: `BinaryNode.php`

<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\ExpressionLanguage\Node;

use Symfony\Component\ExpressionLanguage\Compiler;
use Symfony\Component\ExpressionLanguage\SyntaxError;

/**
 * @author Fabien Potencier <fabien@symfony.com>
 *
 * @internal
 */
class BinaryNode extends Node
{
    private const OPERATORS = [
        '~' => '.',
        'and' => '&&',
        'or' => '||',
    ];

    private const FUNCTIONS = [
        '**' => 'pow',
        '..' => 'range',
        'in' => 'in_array',
        'not in' => '!in_array',
    ];

    public function __construct(string $operator, Node $left, Node $right)
    {
        parent::__construct(
            ['left' => $left, 'right' => $right],
            ['operator' => $operator]
        );
    }

    public function compile(Compiler $compiler)
    {
        $operator = $this->attributes['operator'];

        if ('matches' == $operator) {
            if ($this->nodes['right'] instanceof ConstantNode) {
                $this->evaluateMatches($this->nodes['right']->evaluate([], []), '');
            }

            $compiler
                ->raw('(static function ($regexp, $str) { set_error_handler(function ($t, $m) use ($regexp, $str) { throw new \Symfony\Component\ExpressionLanguage\SyntaxError(sprintf(\'Regexp "%s" passed to "matches" is not valid\', $regexp).substr($m, 12)); }); try { return preg_match($regexp, (string) $str); } finally { restore_error_handler(); } })(')
                ->compile($this->nodes['right'])
                ->raw(', ')
                ->compile($this->nodes['left'])
                ->raw(')')
            ;

            return;
        }

        if (isset(self::FUNCTIONS[$operator])) {
            $compiler
                ->raw(sprintf('%s(', self::FUNCTIONS[$operator]))
                ->compile($this->nodes['left'])
                ->raw(', ')
                ->compile($this->nodes['right'])
                ->raw(')')
            ;

            return;
        }

        if (isset(self::OPERATORS[$operator])) {
            $operator = self::OPERATORS[$operator];
        }

        $compiler
            ->raw('(')
            ->compile($this->nodes['left'])
            ->raw(' ')
            ->raw($operator)
            ->raw(' ')
            ->compile($this->nodes['right'])
            ->raw(')')
        ;
    }

    public function evaluate(array $functions, array $values)
    {
        $operator = $this->attributes['operator'];
        $left = $this->nodes['left']->evaluate($functions, $values);

        if (isset(self::FUNCTIONS[$operator])) {
            $right = $this->nodes['right']->evaluate($functions, $values);

            if ('not in' === $operator) {
                return !\in_array($left, $right);
            }
            $f = self::FUNCTIONS[$operator];

            return $f($left, $right);
        }

        switch ($operator) {
            case 'or':
            case '||':
                return $left || $this->nodes['right']->evaluate($functions, $values);
            case 'and':
            case '&&':
                return $left && $this->nodes['right']->evaluate($functions, $values);
        }

        $right = $this->nodes['right']->evaluate($functions, $values);

        switch ($operator) {
            case '|':
                return $left | $right;
            case '^':
                return $left ^ $right;
            case '&':
                return $left & $right;
            case '==':
                return $left == $right;
            case '===':
                return $left === $right;
            case '!=':
                return $left != $right;
            case '!==':
                return $left !== $right;
            case '<':
                return $left < $right;
            case '>':
                return $left > $right;
            case '>=':
                return $left >= $right;
            case '<=':
                return $left <= $right;
            case 'not in':
                return !\in_array($left, $right);
            case 'in':
                return \in_array($left, $right);
            case '+':
                return $left + $right;
            case '-':
                return $left - $right;
            case '~':
                return $left.$right;
            case '*':
                return $left * $right;
            case '/':
                if (0 == $right) {
                    throw new \DivisionByZeroError('Division by zero.');
                }

                return $left / $right;
            case '%':
                if (0 == $right) {
                    throw new \DivisionByZeroError('Modulo by zero.');
                }

                return $left % $right;
            case 'matches':
                return $this->evaluateMatches($right, $left);
        }
    }

    public function toArray()
    {
        return ['(', $this->nodes['left'], ' '.$this->attributes['operator'].' ', $this->nodes['right'], ')'];
    }

    private function evaluateMatches(string $regexp, ?string $str): int
    {
        set_error_handler(function ($t, $m) use ($regexp) {
            throw new SyntaxError(sprintf('Regexp "%s" passed to "matches" is not valid', $regexp).substr($m, 12));
        });
        try {
            return preg_match($regexp, (string) $str);
        } finally {
            restore_error_handler();
        }
    }
}
Name	Size	Permission
ArgumentsNode.php	819 bytes	0750
ArrayNode.php	2758 bytes	0750
BinaryNode.php	5596 bytes	0750
ConditionalNode.php	1424 bytes	0750
ConstantNode.php	2007 bytes	0750
FunctionNode.php	1631 bytes	0750
GetAttrNode.php	4092 bytes	0750
NameNode.php	922 bytes	0750
Node.php	2658 bytes	0750
UnaryNode.php	1494 bytes	0750
File Content: BinaryNode.php

File Content: `BinaryNode.php`
