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Editing: Compiler.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 ElementorDeps\Twig;

use ElementorDeps\Twig\Node\Node;
/**
 * @author Fabien Potencier <fabien@symfony.com>
 */
class Compiler
{
    private $lastLine;
    private $source;
    private $indentation;
    private $env;
    private $debugInfo = [];
    private $sourceOffset;
    private $sourceLine;
    private $varNameSalt = 0;
    private $didUseEcho = \false;
    private $didUseEchoStack = [];
    public function __construct(Environment $env)
    {
        $this->env = $env;
    }
    public function getEnvironment() : Environment
    {
        return $this->env;
    }
    public function getSource() : string
    {
        return $this->source;
    }
    /**
     * @return $this
     */
    public function reset(int $indentation = 0)
    {
        $this->lastLine = null;
        $this->source = '';
        $this->debugInfo = [];
        $this->sourceOffset = 0;
        // source code starts at 1 (as we then increment it when we encounter new lines)
        $this->sourceLine = 1;
        $this->indentation = $indentation;
        $this->varNameSalt = 0;
        return $this;
    }
    /**
     * @return $this
     */
    public function compile(Node $node, int $indentation = 0)
    {
        $this->reset($indentation);
        $this->didUseEchoStack[] = $this->didUseEcho;
        try {
            $this->didUseEcho = \false;
            $node->compile($this);
            if ($this->didUseEcho) {
                trigger_deprecation('twig/twig', '3.9', 'Using "%s" is deprecated, use "yield" instead in "%s", then flag the class with #[YieldReady].', $this->didUseEcho, \get_class($node));
            }
            return $this;
        } finally {
            $this->didUseEcho = \array_pop($this->didUseEchoStack);
        }
    }
    /**
     * @return $this
     */
    public function subcompile(Node $node, bool $raw = \true)
    {
        if (!$raw) {
            $this->source .= \str_repeat(' ', $this->indentation * 4);
        }
        $this->didUseEchoStack[] = $this->didUseEcho;
        try {
            $this->didUseEcho = \false;
            $node->compile($this);
            if ($this->didUseEcho) {
                trigger_deprecation('twig/twig', '3.9', 'Using "%s" is deprecated, use "yield" instead in "%s", then flag the class with #[YieldReady].', $this->didUseEcho, \get_class($node));
            }
            return $this;
        } finally {
            $this->didUseEcho = \array_pop($this->didUseEchoStack);
        }
    }
    /**
     * Adds a raw string to the compiled code.
     *
     * @return $this
     */
    public function raw(string $string)
    {
        $this->checkForEcho($string);
        $this->source .= $string;
        return $this;
    }
    /**
     * Writes a string to the compiled code by adding indentation.
     *
     * @return $this
     */
    public function write(...$strings)
    {
        foreach ($strings as $string) {
            $this->checkForEcho($string);
            $this->source .= \str_repeat(' ', $this->indentation * 4) . $string;
        }
        return $this;
    }
    /**
     * Adds a quoted string to the compiled code.
     *
     * @return $this
     */
    public function string(string $value)
    {
        $this->source .= \sprintf('"%s"', \addcslashes($value, "\x00\t\"\$\\"));
        return $this;
    }
    /**
     * Returns a PHP representation of a given value.
     *
     * @return $this
     */
    public function repr($value)
    {
        if (\is_int($value) || \is_float($value)) {
            if (\false !== ($locale = \setlocale(\LC_NUMERIC, '0'))) {
                \setlocale(\LC_NUMERIC, 'C');
            }
            $this->raw(\var_export($value, \true));
            if (\false !== $locale) {
                \setlocale(\LC_NUMERIC, $locale);
            }
        } elseif (null === $value) {
            $this->raw('null');
        } elseif (\is_bool($value)) {
            $this->raw($value ? 'true' : 'false');
        } elseif (\is_array($value)) {
            $this->raw('array(');
            $first = \true;
            foreach ($value as $key => $v) {
                if (!$first) {
                    $this->raw(', ');
                }
                $first = \false;
                $this->repr($key);
                $this->raw(' => ');
                $this->repr($v);
            }
            $this->raw(')');
        } else {
            $this->string($value);
        }
        return $this;
    }
    /**
     * @return $this
     */
    public function addDebugInfo(Node $node)
    {
        if ($node->getTemplateLine() != $this->lastLine) {
            $this->write(\sprintf("// line %d\n", $node->getTemplateLine()));
            $this->sourceLine += \substr_count($this->source, "\n", $this->sourceOffset);
            $this->sourceOffset = \strlen($this->source);
            $this->debugInfo[$this->sourceLine] = $node->getTemplateLine();
            $this->lastLine = $node->getTemplateLine();
        }
        return $this;
    }
    public function getDebugInfo() : array
    {
        \ksort($this->debugInfo);
        return $this->debugInfo;
    }
    /**
     * @return $this
     */
    public function indent(int $step = 1)
    {
        $this->indentation += $step;
        return $this;
    }
    /**
     * @return $this
     *
     * @throws \LogicException When trying to outdent too much so the indentation would become negative
     */
    public function outdent(int $step = 1)
    {
        // can't outdent by more steps than the current indentation level
        if ($this->indentation < $step) {
            throw new \LogicException('Unable to call outdent() as the indentation would become negative.');
        }
        $this->indentation -= $step;
        return $this;
    }
    public function getVarName() : string
    {
        return \sprintf('__internal_compile_%d', $this->varNameSalt++);
    }
    private function checkForEcho(string $string) : void
    {
        if ($this->didUseEcho) {
            return;
        }
        $this->didUseEcho = \preg_match('/^\\s*+(echo|print)\\b/', $string, $m) ? $m[1] : \false;
    }
}