/*
   +----------------------------------------------------------------------+
   | HipHop for PHP                                                       |
   +----------------------------------------------------------------------+
   | Copyright (c) 2010- Facebook, Inc. (http://www.facebook.com)         |
   | Copyright (c) 1997-2010 The PHP Group                                |
   +----------------------------------------------------------------------+
   | This source file is subject to version 3.01 of the PHP license,      |
   | that is bundled with this package in the file LICENSE, and is        |
   | available through the world-wide-web at the following url:           |
   | http://www.php.net/license/3_01.txt                                  |
   | If you did not receive a copy of the PHP license and are unable to   |
   | obtain it through the world-wide-web, please send a note to          |
   | license@php.net so we can mail you a copy immediately.               |
   +----------------------------------------------------------------------+
*/

#ifndef __EXT_FUNCTION_H__
#define __EXT_FUNCTION_H__

#include <runtime/base/base_includes.h>

namespace HPHP {
///////////////////////////////////////////////////////////////////////////////

Array f_get_defined_functions();
bool f_function_exists(CStrRef function_name, bool autoload = true);
bool f_is_callable(CVarRef v, bool syntax = false,
                   VRefParam name = uninit_null());
Variant f_call_user_func(int _argc, CVarRef function, CArrRef _argv = null_array);
Object f_call_user_func_array_async(CVarRef function, CArrRef params);
Object f_call_user_func_async(int _argc, CVarRef function, CArrRef _argv = null_array);
Variant f_check_user_func_async(CVarRef handles, int timeout = -1);
Variant f_end_user_func_async(CObjRef handle, int default_strategy = k_GLOBAL_STATE_IGNORE, CVarRef additional_strategies = uninit_null());
String f_call_user_func_serialized(CStrRef input);
Variant f_call_user_func_array_rpc(CStrRef host, int port, CStrRef auth, int timeout, CVarRef function, CArrRef params);
Variant f_call_user_func_rpc(int _argc, CStrRef host, int port, CStrRef auth, int timeout, CVarRef function, CArrRef _argv = null_array);
Variant f_forward_static_call_array(CVarRef function, CArrRef params);
Variant f_forward_static_call(int _argc, CVarRef function, CArrRef _argv = null_array);
Variant f_get_called_class();
String f_create_function(CStrRef args, CStrRef code);

///////////////////////////////////////////////////////////////////////////////

/**
 * PHP's func_get_arg() is transformed to this function with some extra
 * parameters to help the implementation.
 */
Variant f_func_get_arg(int arg_num);
Variant func_get_arg(int num_args, CArrRef params, CArrRef args, int pos);

/**
 * PHP's func_get_args() is transformed to this function with some extra
 * parameters to help the implementation.
 */
Array f_func_get_args();
Array hhvm_get_frame_args(const VM::ActRec* ar);
Array func_get_args(int num_args, CArrRef params, CArrRef args);

/**
 * HPHP actually inlines this function, so this is degenerated.
 */
int64_t f_func_num_args();

///////////////////////////////////////////////////////////////////////////////

void f_register_postsend_function(int _argc, CVarRef function, CArrRef _argv = null_array);
void f_register_shutdown_function(int _argc, CVarRef function, CArrRef _argv = null_array);
void f_register_cleanup_function(int _argc, CVarRef function, CArrRef _argv = null_array);
bool f_register_tick_function(int _argc, CVarRef function, CArrRef _argv = null_array);
void f_unregister_tick_function(CVarRef function_name);

///////////////////////////////////////////////////////////////////////////////
}

#endif // __EXT_FUNCTION_H__