<?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;
use Twig\Error\RuntimeError;
/**
* Exposes a template to userland.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
final class TemplateWrapper
{
/**
* This method is for internal use only and should never be called
* directly (use Twig\Environment::load() instead).
*
* @internal
*/
public function __construct(
private Environment $env,
private Template $template,
) {
}
/**
* @return iterable<scalar|\Stringable|null>
*/
public function stream(array $context = []): iterable
{
yield from $this->template->yield($context);
}
/**
* @return iterable<scalar|\Stringable|null>
*/
public function streamBlock(string $name, array $context = []): iterable
{
yield from $this->template->yieldBlock($name, $context + $this->env->getGlobals());
}
public function render(array $context = []): string
{
return $this->template->render($context);
}
public function display(array $context = []): void
{
// using func_get_args() allows to not expose the blocks argument
// as it should only be used by internal code
$this->template->display($context, \func_get_args()[1] ?? []);
}
public function hasBlock(string $name, array $context = []): bool
{
return $this->template->hasBlock($name, $context + $this->env->getGlobals());
}
/**
* @return string[] An array of defined template block names
*/
public function getBlockNames(array $context = []): array
{
return $this->template->getBlockNames($context + $this->env->getGlobals());
}
public function renderBlock(string $name, array $context = []): string
{
return $this->template->renderBlock($name, $context + $this->env->getGlobals());
}
public function displayBlock(string $name, array $context = []): void
{
$context += $this->env->getGlobals();
foreach ($this->template->yieldBlock($name, $context) as $data) {
echo $data;
}
}
public function getSourceContext(): Source
{
return $this->template->getSourceContext();
}
public function getTemplateName(): string
{
return $this->template->getTemplateName();
}
/**
* Returns the escaping strategy the template body was compiled with.
*
* This describes the template's own source, not its output: `autoescape`,
* `escape`, and anything rendered by a parent, embedded, or included
* template can use another strategy.
*
* @return string|false The strategy name or false when the template is not autoescaped
*/
public function getDefaultEscapeStrategy(): string|false
{
return $this->template->getDefaultEscapeStrategy();
}
/**
* @internal
*/
public function isOwnedBy(Environment $env): bool
{
return $this->env === $env && $this->template->isOwnedBy($env);
}
/**
* @internal
*/
public function unwrap(?Environment $env = null): Template
{
if (null === $env) {
trigger_deprecation('twig/twig', '3.30', 'Calling "%s()" without arguments is deprecated, pass the Twig environment instead.', __METHOD__);
} elseif (!$this->isOwnedBy($env)) {
throw new RuntimeError(\sprintf('A "%s" can only be used with the "%s" that created it.', self::class, Environment::class));
}
return $this->template;
}
}