Vyrenderování jednoho bloku z latte šablony

RenderBlockHelperMacro.php

<?php

use Latte;
use Latte\Compiler;

class RenderBlockHelperMacro extends \Latte\Macros\MacroSet
{

	public function __construct(Compiler $compiler)
	{
		parent::__construct($compiler);
		$this->addMacro('render-block-macro-helper', 'throw new \Exception()');
	}

	public function finalize()
	{
		$prolog = [];
		$prolog[] = 'if (!empty($_overrideBlockRendering)) {';
		$prolog[] = "\t" . 'call_user_func(reset($_b->blocks[$_overrideBlockRendering]), $_b, get_defined_vars());';
		$prolog[] = "\t" . 'return; // end rendering';
		$prolog[] = '}';

		return [implode("\n", $prolog), ""];
	}

}

template.latte

{block subject}foo{/block}
{block body}

usage.php

<?php

$engine = new Engine();
$engine->onCompile[] = function (Engine $engine) {
  new RenderBlockHelperMacro($engine->getCompiler());
};

$subject = $engine->renderToString(__DIR__ . '/template.latte', [
  '_overrideBlockRendering' => 'subject';
]);