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<?php
namespace Smarty\FunctionHandler;
use Smarty\Template;
/**
* Abstract implementation for function handlers which support custom attributes
*/
abstract class AttributeBase implements AttributeFunctionHandlerInterface
{
/**
* Array of names of required attribute required by tag
*
* @var array
*/
protected array $required_attributes = [];
/**
* Array of names of optional attribute required by tag
* use array('_any') if there is no restriction of attributes names
*
* @var array
*/
protected array $optional_attributes = [];
/**
* Shorttag attribute order defined by its names
*
* @var array
*/
protected array $shorttag_order = [];
/**
* Array of names of valid option flags
*
* @var array
*/
protected array $option_flags = [];
/**
* Return whether the output is cacheable.
* @var bool
*/
protected bool $cacheable = true;
/**
* Return whether the output is cacheable.
* @return bool
*/
public function isCacheable(): bool
{
return $this->cacheable;
}
/**
* Function body
* @param mixed $params The supplied parameters.
* @param Smarty\Template $template
* @return mixed
*/
abstract public function handle($params, Template $template): ?string;
/**
* Return the support attributes for this function.
* @return array<string, array>
*/
public function getSupportedAttributes(): array
{
return [
'required_attributes' => $this->required_attributes,
'optional_attributes' => $this->optional_attributes,
'shorttag_order' => $this->shorttag_order,
'option_flags' => $this->option_flags,
];
}
}
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