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/**
* Functor.h
*
* We want to be able to wrap a std::function in an object and pass
* that to PHP. The normal "Closure" class from the Zend engine
* would be very suitable for that. However, the Zend engine does
* not really allow us to add a secret pointer to such closure object.
*
* Therefore, we create our own Closure class, this time using PHP-CPP
* code, to wrap a std::function.
*
* @author Emiel Bruijntjes <emiel.bruijntjes@copernica.com>
* @copyright 2015 Copernica BV
*/
/**
* Set up namespace
*/
namespace Php {
/**
* Class definition
*/
class Functor : public Base
{
public:
/**
* Constructor
* @param function The function to wrap
*/
Functor(const std::function<Value(Parameters ¶ms)> &function) : _function(function) {}
/**
* Destructor
*/
virtual ~Functor() {}
/**
* Invoke the functor
* @param params
* @return Value
*/
Value __invoke(Parameters ¶ms) const
{
// pass on to the function
return _function(params);
}
/**
* Get the functor class entry
* @return zend_class_entry
*/
static zend_class_entry *entry()
{
// get the "member"
return _entry;
}
/**
* Initialize the class
* @param tsrmls
*/
static void initialize(TSRMLS_D);
/**
* Shutdown the class
* @param tsrmls
*/
static void shutdown(TSRMLS_D);
private:
/**
* The std::function that is wrapped in PHP code
* @var std::function
*/
const std::function<Value(Parameters ¶ms)> _function;
/**
* The classentry
* @var zend_class_entry
*/
static zend_class_entry *_entry;
};
/**
* End of namespace
*/
}
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