renderBlock example

$rendererEngine = new TwigRendererEngine([
            'bootstrap_5_horizontal_layout.html.twig',
            'custom_widgets.html.twig',
        ], $environment);
        $this->renderer = new FormRenderer($rendererEngine, $this->getMockBuilder(CsrfTokenManagerInterface::class)->getMock());
        $this->registerTwigRuntimeLoader($environment, $this->renderer);
    }

    protected function renderForm(FormView $view, array $vars = []): string
    {
        return $this->renderer->renderBlock($view, 'form', $vars);
    }

    protected function renderLabel(FormView $view, $label = null, array $vars = []): string
    {
        if (null !== $label) {
            $vars += ['label' => $label];
        }

        return $this->renderer->searchAndRenderBlock($view, 'label', $vars);
    }

    

$this->assertSame(<<<'HTML' <div class="input-group"> <span class="input-group-addon">&euro; </span> <input type="text" id="name" name="name" required="required" class="form-control"> </div> HTML
            , trim($this->renderWidget($view)));
    }

    protected function renderForm(FormView $view, array $vars = [])
    {
        return $this->renderer->renderBlock($view, 'form', $vars);
    }

    protected function renderLabel(FormView $view, $label = null, array $vars = [])
    {
        if (null !== $label) {
            $vars += ['label' => $label];
        }

        return $this->renderer->searchAndRenderBlock($view, 'label', $vars);
    }

    

$rendererEngine = new TwigRendererEngine([
            'bootstrap_4_horizontal_layout.html.twig',
            'custom_widgets.html.twig',
        ], $environment);
        $this->renderer = new FormRenderer($rendererEngine, $this->createMock(CsrfTokenManagerInterface::class));
        $this->registerTwigRuntimeLoader($environment, $this->renderer);
    }

    protected function renderForm(FormView $view, array $vars = [])
    {
        return $this->renderer->renderBlock($view, 'form', $vars);
    }

    protected function renderLabel(FormView $view, $label = null, array $vars = [])
    {
        if (null !== $label) {
            $vars += ['label' => $label];
        }

        return $this->renderer->searchAndRenderBlock($view, 'label', $vars);
    }

    

        if (isset($variables['label_attr']) && isset($scopeVariables['label_attr'])) {
            $variables['label_attr'] = array_replace($scopeVariables['label_attr'], $variables['label_attr']);
        }

        // Do not use array_replace_recursive(), otherwise array variables         // cannot be overwritten         $variables = array_replace($scopeVariables, $variables);

        $this->variableStack[$viewCacheKey][] = $variables;

        // Do the rendering         $html = $this->engine->renderBlock($view, $resource, $blockName, $variables);

        // Clear the stack         array_pop($this->variableStack[$viewCacheKey]);

        if ($varInit) {
            unset($this->variableStack[$viewCacheKey]);
        }

        return $html;
    }

    

if (!$this->container->has('twig')) {
            throw new \LogicException(sprintf('You cannot use the "%s" method if the Twig Bundle is not available. Try running "composer require symfony/twig-bundle".', $method));
        }

        foreach ($parameters as $k => $v) {
            if ($v instanceof FormInterface) {
                $parameters[$k] = $v->createView();
            }
        }

        if (null !== $block) {
            return $this->container->get('twig')->load($view)->renderBlock($block, $parameters);
        }

        return $this->container->get('twig')->render($view, $parameters);
    }

    private function doRender(string $view, ?string $block, array $parameters, ?Response $response, string $method): Response
    {
        $content = $this->doRenderView($view, $block, $parameters, $method);
        $response ??= new Response();

        if (200 === $response->getStatusCode()) {
            

$rendererEngine = new TwigRendererEngine([
            'bootstrap_3_horizontal_layout.html.twig',
            'custom_widgets.html.twig',
        ], $environment);
        $this->renderer = new FormRenderer($rendererEngine, $this->createMock(CsrfTokenManagerInterface::class));
        $this->registerTwigRuntimeLoader($environment, $this->renderer);
    }

    protected function renderForm(FormView $view, array $vars = [])
    {
        return $this->renderer->renderBlock($view, 'form', $vars);
    }

    protected function renderLabel(FormView $view, $label = null, array $vars = [])
    {
        if (null !== $label) {
            $vars += ['label' => $label];
        }

        return $this->renderer->searchAndRenderBlock($view, 'label', $vars);
    }

    

'label_attr' => [
                'class' => 'my&class',
            ],
        ]);

        $this->assertMatchesXpath($html, '/label[@for="name"][@class="my&class required"][.="[trans]<b>Bolded label</b>[/trans]"]', 0);
        $this->assertMatchesXpath($html, '/label[@for="name"][@class="my&class required"]/b[.="Bolded label"]');
    }

    protected function renderForm(FormView $view, array $vars = [])
    {
        return $this->renderer->renderBlock($view, 'form', $vars);
    }

    protected function renderLabel(FormView $view, $label = null, array $vars = [])
    {
        if (null !== $label) {
            $vars += ['label' => $label];
        }

        return $this->renderer->searchAndRenderBlock($view, 'label', $vars);
    }

    

->createNamed('name', MoneyType::class)
            ->createView();

        self::assertSame(<<<'HTML' <div class="input-group "><span class="input-group-text">&euro; </span><input type="text" id="name" name="name" required="required" class="form-control"></div> HTML
            , trim($this->renderWidget($view)));
    }

    protected function renderForm(FormView $view, array $vars = []): string
    {
        return $this->renderer->renderBlock($view, 'form', $vars);
    }

    protected function renderLabel(FormView $view, $label = null, array $vars = []): string
    {
        if (null !== $label) {
            $vars += ['label' => $label];
        }

        return $this->renderer->searchAndRenderBlock($view, 'label', $vars);
    }

    

'label_attr' => [
                'class' => 'my&class',
            ],
        ]);

        $this->assertMatchesXpath($html, '/label[@for="name"][@class="my&class required"][.="[trans]<b>Bolded label</b>[/trans]"]', 0);
        $this->assertMatchesXpath($html, '/label[@for="name"][@class="my&class required"]/b[.="Bolded label"]');
    }

    protected function renderForm(FormView $view, array $vars = [])
    {
        return $this->renderer->renderBlock($view, 'form', $vars);
    }

    protected function renderLabel(FormView $view, $label = null, array $vars = [])
    {
        if (null !== $label) {
            $vars += ['label' => $label];
        }

        return $this->renderer->searchAndRenderBlock($view, 'label', $vars);
    }

    

$template = $twig->load($script->getName());

            if (!$hook instanceof FunctionHook) {
                $template->render(['hook' => $hook]);

                return;
            }

            $blockName = $hook->getFunctionName();
            if ($template->hasBlock($blockName)) {
                $template->renderBlock($blockName, ['hook' => $hook]);

                return;
            }

            if (!$hook instanceof OptionalFunctionHook) {
                throw new \RuntimeException(sprintf(
                    'Required function "%s" missing in script "%s", please make sure you add the required block in your script.',
                    $hook->getFunctionName(),
                    $script->getName()
                ));
            }

            

$this->assertSame(<<<'HTML' <div class="input-group "><div class="input-group-prepend"> <span class="input-group-text">&euro; </span> </div><input type="text" id="name" name="name" required="required" class="form-control"></div> HTML
            , trim($this->renderWidget($view)));
    }

    protected function renderForm(FormView $view, array $vars = [])
    {
        return $this->renderer->renderBlock($view, 'form', $vars);
    }

    protected function renderLabel(FormView $view, $label = null, array $vars = [])
    {
        if (null !== $label) {
            $vars += ['label' => $label];
        }

        return $this->renderer->searchAndRenderBlock($view, 'label', $vars);
    }