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/**
* Function.cpp
*
* Implementation for the function class
*
* @author Emiel Bruijntjes <emiel.bruijntjes@copernica.com>
* @copyright 2013 Copernica BV
*/
#include "includes.h"
/**
* Set up namespace
*/
namespace Php {
/**
* Function that is called by the Zend engine every time that a function gets called
* @param ht
* @param return_value
* @param return_value_ptr
* @param this_ptr
* @param return_value_used
* @param tsrm_ls
* @return integer
*/
static void invoke_callable(INTERNAL_FUNCTION_PARAMETERS)
{
// find the function name
const char *name = get_active_function_name(TSRMLS_C);
// uncover the hidden pointer inside the function name
Callable *callable = HiddenPointer<Callable>(name);
// wrap the return value
Value result(return_value, true);
// construct parameters
Parameters params(this_ptr, ZEND_NUM_ARGS());
// the function could throw an exception
try
{
// get the result
result = callable->invoke(params);
}
catch (Exception &exception)
{
// process the exception
exception.process();
}
}
/**
* Fill a function entry
*
* This method is called when the extension is registering itself, when the
* function or method introces himself
*
* @param entry Entry to be filled
* @param classname Optional class name
* @param flags Is this a public property?
*/
void Callable::initialize(zend_function_entry *entry, const char *classname, int flags) const
{
// fill the members of the entity, and hide a pointer to the current object in the name
entry->fname = (const char *)_ptr;
entry->handler = invoke_callable;
entry->arg_info = _argv;
entry->num_args = _argc;
entry->flags = flags;
// we should fill the first argument as well
initialize((zend_arg_info *)entry->arg_info, classname);
}
/**
* Fill a function entry
* @param info Info to be filled
* @param classname Optional classname
*/
void Callable::initialize(zend_arg_info *info, const char *classname) const
{
#if PHP_VERSION_ID >= 50400
// up until php 5.3, the first info object is filled with alternative information,
// later it is casted to a zend_internal_function object
auto *finfo = (zend_internal_function_info *)info;
// fill in all the members, note that return reference is false by default,
// because we do not support returning references in PHP-CPP, although Zend
// engine allows it. Inside the name we hide a pointer to the current object
finfo->_name = _ptr;
finfo->_name_len = strlen(_ptr);
finfo->_class_name = classname;
// number of required arguments, and the expected return type
finfo->required_num_args = _required;
finfo->_type_hint = (unsigned char)_return;
// we do not support return-by-reference
finfo->return_reference = false;
// passing by reference is not used
finfo->pass_rest_by_reference = false;
#else
// php 5.3 code
info->name = nullptr;
info->name_len = 0;
info->class_name = nullptr;
info->class_name_len = 0;
info->array_type_hint = false;
info->allow_null = false;
info->pass_by_reference = false;
info->return_reference = false;
info->required_num_args = _required;
#endif
}
/**
* End of namespace
*/
}
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