ConditionalExpression.php

<?php


/*
 * This file is part of Twig.
 *
 * (c) Fabien Potencier
 * (c) Armin Ronacher
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace Twig\Node\Expression;

use Twig\Compiler;
class ConditionalExpression extends AbstractExpression {
    public function __construct(AbstractExpression $expr1, AbstractExpression $expr2, AbstractExpression $expr3, int $lineno) {
        parent::__construct([
            'expr1' => $expr1,
            'expr2' => $expr2,
            'expr3' => $expr3,
        ], [], $lineno);
    }
    public function compile(Compiler $compiler) : void {
        // Ternary with no then uses Elvis operator
        if ($this->getNode('expr1') === $this->getNode('expr2')) {
            $compiler->raw('((')
                ->subcompile($this->getNode('expr1'))
                ->raw(') ?: (')
                ->subcompile($this->getNode('expr3'))
                ->raw('))');
        }
        else {
            $compiler->raw('((')
                ->subcompile($this->getNode('expr1'))
                ->raw(') ? (')
                ->subcompile($this->getNode('expr2'))
                ->raw(') : (')
                ->subcompile($this->getNode('expr3'))
                ->raw('))');
        }
    }

}