<?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 OTGS\Toolset\Twig\Node\Expression;

class NameExpression extends \OTGS\Toolset\Twig\Node\Expression\AbstractExpression
{
    protected $specialVars = ['_self' => '$this', '_context' => '$context', '_charset' => '$this->env->getCharset()'];
    public function __construct($name, $lineno)
    {
        parent::__construct([], ['name' => $name, 'is_defined_test' => \false, 'ignore_strict_check' => \false, 'always_defined' => \false], $lineno);
    }
    public function compile(\OTGS\Toolset\Twig\Compiler $compiler)
    {
        $name = $this->getAttribute('name');
        $compiler->addDebugInfo($this);
        if ($this->getAttribute('is_defined_test')) {
            if ($this->isSpecial()) {
                $compiler->repr(\true);
            } elseif (\PHP_VERSION_ID >= 700400) {
                $compiler->raw('array_key_exists(')->string($name)->raw(', $context)');
            } else {
                $compiler->raw('(isset($context[')->string($name)->raw(']) || array_key_exists(')->string($name)->raw(', $context))');
            }
        } elseif ($this->isSpecial()) {
            $compiler->raw($this->specialVars[$name]);
        } elseif ($this->getAttribute('always_defined')) {
            $compiler->raw('$context[')->string($name)->raw(']');
        } else {
            if (\PHP_VERSION_ID >= 70000) {
                // use PHP 7 null coalescing operator
                $compiler->raw('($context[')->string($name)->raw('] ?? ');
                if ($this->getAttribute('ignore_strict_check') || !$compiler->getEnvironment()->isStrictVariables()) {
                    $compiler->raw('null)');
                } else {
                    $compiler->raw('$this->getContext($context, ')->string($name)->raw('))');
                }
            } elseif (\PHP_VERSION_ID >= 50400) {
                // PHP 5.4 ternary operator performance was optimized
                $compiler->raw('(isset($context[')->string($name)->raw(']) ? $context[')->string($name)->raw('] : ');
                if ($this->getAttribute('ignore_strict_check') || !$compiler->getEnvironment()->isStrictVariables()) {
                    $compiler->raw('null)');
                } else {
                    $compiler->raw('$this->getContext($context, ')->string($name)->raw('))');
                }
            } else {
                $compiler->raw('$this->getContext($context, ')->string($name);
                if ($this->getAttribute('ignore_strict_check')) {
                    $compiler->raw(', true');
                }
                $compiler->raw(')');
            }
        }
    }
    public function isSpecial()
    {
        return isset($this->specialVars[$this->getAttribute('name')]);
    }
    public function isSimple()
    {
        return !$this->isSpecial() && !$this->getAttribute('is_defined_test');
    }
}
\class_alias('OTGS\\Toolset\\Twig\\Node\\Expression\\NameExpression', 'OTGS\\Toolset\\Twig_Node_Expression_Name');
