DeprecatedNode.php

<?php


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

use Twig\Attribute\YieldReady;
use Twig\Compiler;
use Twig\Node\Expression\AbstractExpression;
use Twig\Node\Expression\ConstantExpression;

/**
 * Represents a deprecated node.
 *
 * @author Yonel Ceruto <yonelceruto@gmail.com>
 */
class DeprecatedNode extends Node {
    public function __construct(AbstractExpression $expr, int $lineno) {
        parent::__construct([
            'expr' => $expr,
        ], [], $lineno);
    }
    public function compile(Compiler $compiler) : void {
        $compiler->addDebugInfo($this);
        $expr = $this->getNode('expr');
        if (!$expr instanceof ConstantExpression) {
            $varName = $compiler->getVarName();
            $compiler->write(\sprintf('$%s = ', $varName))
                ->subcompile($expr)
                ->raw(";\n");
        }
        $compiler->write('trigger_deprecation(');
        if ($this->hasNode('package')) {
            $compiler->subcompile($this->getNode('package'));
        }
        else {
            $compiler->raw("''");
        }
        $compiler->raw(', ');
        if ($this->hasNode('version')) {
            $compiler->subcompile($this->getNode('version'));
        }
        else {
            $compiler->raw("''");
        }
        $compiler->raw(', ');
        if ($expr instanceof ConstantExpression) {
            $compiler->subcompile($expr);
        }
        else {
            $compiler->write(\sprintf('$%s', $varName));
        }
        $compiler->raw('.')
            ->string(\sprintf(' in "%s" at line %d.', $this->getTemplateName(), $this->getTemplateLine()))
            ->raw(");\n");
    }

}