DigiComp.FluidRenderFunctions/Classes/ViewHelpers/Traits/ValidateRenderFunctionTrait.php

<?php

declare(strict_types=1);

namespace DigiComp\FluidRenderFunctions\ViewHelpers\Traits;

use DigiComp\FluidRenderFunctions\InvokeRenderFunctionInterface;
use DigiComp\FluidRenderFunctions\ViewHelpers\RegisterRenderFunctionViewHelper;

trait ValidateRenderFunctionTrait
{
    public function validateRenderFunctionArgument(string $argumentName)
    {
        $renderFunction = $this->viewHelperVariableContainer->get(
            RegisterRenderFunctionViewHelper::class,
            $this->arguments[$argumentName]
        );
        if (!($renderFunction instanceof InvokeRenderFunctionInterface)) {
            throw new \InvalidArgumentException(
                'render function with name "' . $this->arguments[$argumentName] . '" has not been registered.',
                1717293038
            );
        }
        $this->arguments[$argumentName] = $renderFunction;
    }
}