EscaperRuntime::setSafeClasses() implementation

[joeworkman]

My Twig extension implements a global that is an adapter for my CMS.

public function getGlobals(): array
{
    return [
            'cms' => $this->adapter,
    ];
}

I would like to set all functions for this class to be safe. I thought that I could use EscaperRuntime::setSafeClasses() for this.

$this->twig->getRuntime(EscaperRuntime::class)->setSafeClasses([
	TotalForm::class           => ['html'],
	TotalCMSTwigAdapter::class => ['html'],
]);

It's not working. Am I close?

[fabpot]

Can you tell us more about what does not work? I've just tried and it works well. I realize that setSafeClasses() might be a confusing method name. This is only to avoid escaping the return value for __toString() methods.

[joeworkman]

Let me explain what I am trying to accomplish. The TotalForm class is essentially a form builder for my CMS. Its still a work in progress, but the twig currently looks like this...

{% set form  = cms.objectFormBuilder('blog', {}) %}

{{ form.addField('text', 'mytext', {}) }}
{{ form.build() }}

The problem that I was trying to overcome was the need to add | raw to the build statement since it outputs HTML. I thought setting the TotalForm class (the form variable is an instance of TotalForm) to be "safe" would fix that.