Latte\Runtime\Template::render PHP Method

    public function render()
    {
        $this->prepare();
        if ($this->parentName === NULL && isset($this->global->coreParentFinder)) {
            $this->parentName = call_user_func($this->global->coreParentFinder, $this);
        }
        if (isset($this->global->snippetBridge) && !isset($this->global->snippetDriver)) {
            $this->global->snippetDriver = new SnippetDriver($this->global->snippetBridge);
        }
        Filters::$xhtml = (bool) preg_match('#xml|xhtml#', $this->contentType);
        if ($this->referenceType === 'import') {
            if ($this->parentName) {
                $this->createTemplate($this->parentName, [], 'import')->render();
            }
            return;
        } elseif ($this->parentName) {
            // extends
            ob_start(function () {
            });
            $params = $this->main();
            ob_end_clean();
            $this->createTemplate($this->parentName, $params, 'extends')->render();
            return;
        } elseif (!empty($this->params['_renderblock'])) {
            // single block rendering
            $tmp = $this;
            while (in_array($this->referenceType, ['extends', NULL], TRUE) && ($tmp = $tmp->referringTemplate)) {
            }
            if (!$tmp) {
                $this->renderBlock($this->params['_renderblock'], $this->params);
                return;
            }
        }
        // old accumulators for back compatibility
        $this->params['_l'] = new \stdClass();
        $this->params['_g'] = $this->global;
        $this->params['_b'] = (object) ['blocks' => &$this->blockQueue, 'types' => &$this->blockTypes];
        if (isset($this->global->snippetDriver) && $this->global->snippetBridge->isSnippetMode()) {
            if ($this->global->snippetDriver->renderSnippets($this->blockQueue, $this->params)) {
                return;
            }
        }
        $this->main();
    }