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construct/include/ircd/js/function_native.h
2018-02-05 21:24:34 -08:00

67 lines
1.8 KiB
C++

// Matrix Construct
//
// Copyright (C) Matrix Construct Developers, Authors & Contributors
// Copyright (C) 2016-2018 Jason Volk <jason@zemos.net>
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice is present in all copies. The
// full license for this software is available in the LICENSE file.
#pragma once
#define HAVE_IRCD_JS_FUNCTION_NATIVE
namespace ircd {
namespace js {
struct function::native
:root<JSFunction *>
{
using closure = std::function<value (object::handle, value::handle, const args &)>;
const char *_name;
closure lambda;
protected:
virtual value on_call(object::handle callee, value::handle that, const args &);
virtual value on_new(object::handle callee, const args &);
private:
static function::native &from(JSObject *const &);
static bool handle_call(JSContext *, unsigned, JS::Value *) noexcept;
public:
uint16_t arity() const;
string display_name() const;
string name() const;
value operator()(const object::handle &, const vector<value>::handle &) const;
template<class... args> value operator()(const object::handle &, args&&...) const;
native(const char *const &name = "<native>",
const uint &flags = 0,
const uint &arity = 0,
const closure & = {});
native(native &&) = delete;
native(const native &) = delete;
virtual ~native() noexcept;
};
template<class... args>
value
function::native::operator()(const object::handle &that,
args&&... a)
const
{
const vector<value> argv
{
std::forward<args>(a)...
};
const vector<value>::handle handle(argv);
return operator()(that, handle);
}
} // namespace js
} // namespace ircd