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/**
* Function.h
*
* Object represents a callable function that is defined with the CPP API.
* After you've instantiated the extension, you can add function objects to
* it.
*
* @author Emiel Bruijntjes <emiel.bruijntjes@copernica.com>
* @copyright 2013 Copernica BV
*/
/**
* Forward definitions
*/
struct _zend_function_entry;
struct _zend_internal_function_info;
/**
* Set up namespace
*/
namespace Php {
/**
* Class definition
*/
class Function
{
public:
/**
* Constructor
* @param name Name of the function
* @param min Min number of arguments
* @param max Max number of arguments
*/
Function(const char *name, const std::initializer_list<Argument> &arguments = {});
/**
* No copy and move constructors
* @param function The other function
*/
Function(const Function &function) = delete;
Function(Function &&function) = delete;
/**
* Destructor
*/
virtual ~Function();
/**
* No assignment operator
* @param function The other function
* @return Function
*/
Function &operator=(const Function &function) = delete;
/**
* Comparison
* @param function The other function
* @return bool
*/
bool operator<(const Function &function) const
{
return strcmp(name(), function.name()) < 0;
}
/**
* Comparison
* @param function The other function
* @return bool
*/
bool operator>(const Function &function) const
{
return strcmp(name(), function.name()) > 0;
}
/**
* Comparison
* @param function The other function
* @return bool
*/
bool operator==(const Function &function) const
{
return strcmp(name(), function.name()) == 0;
}
/**
* Function name
* @return const char *
*/
const char *name() const
{
return _ptr.text();
}
/**
* Method that gets called every time the function is executed
* @param environment Environment object
* @param params The parameters that were passed
* @return Variable Return value
*/
virtual Value invoke(Environment &environment, Parameters ¶ms)
{
return nullptr;
}
protected:
/**
* Suggestion for the return type
* @var Type
*/
Type _type = nullType;
/**
* Required number of arguments
* @var integer
*/
int _required;
/**
* Total number of arguments
* @var integer
*/
int _argc;
/**
* The arguments
* @var zend_arg_info[]
*/
struct _zend_arg_info *_argv;
/**
* The name is stored in a hidden pointer, so that we have access to the function
* @var HiddenPointer
*/
HiddenPointer<Function> _ptr;
private:
/**
* Fill a function entry
* @param entry Entry to be filled
*/
void fill(struct _zend_function_entry *entry) const;
/**
* Fill function info
* @param info Info object to be filled
*/
void fill(struct _zend_internal_function_info *info) const;
/**
* Extension has access to the private members
*/
friend class Extension;
};
/**
* End of namespace
*/
}
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