mirror of
https://github.com/matrix-construct/construct
synced 2024-11-09 03:21:15 +01:00
91 lines
2.3 KiB
C
91 lines
2.3 KiB
C
|
/*
|
||
|
|
* Copyright (C) 2016 Charybdis Development Team
|
||
|
|
* Copyright (C) 2016 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.
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
||
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||
|
|
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
|
||
|
|
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
||
|
|
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||
|
|
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
||
|
|
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
|
||
|
|
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#pragma once
|
||
|
|
#define HAVE_IRCD_JS_GENERATOR_H
|
||
|
|
|
||
|
|
namespace ircd {
|
||
|
|
namespace js {
|
||
|
|
|
||
|
|
struct generator
|
||
|
|
{
|
||
|
|
heap_object state;
|
||
|
|
heap_object last;
|
||
|
|
|
||
|
|
bool done() const;
|
||
|
|
template<class... args> value next(args&&...);
|
||
|
|
template<class... args> value _throw(args&&...);
|
||
|
|
template<class... args> value _return(args&&...);
|
||
|
|
|
||
|
|
generator(object::handle state);
|
||
|
|
generator(object state);
|
||
|
|
generator() = default;
|
||
|
|
};
|
||
|
|
|
||
|
|
inline
|
||
|
|
generator::generator(object state)
|
||
|
|
:state{state}
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
inline
|
||
|
|
generator::generator(object::handle state)
|
||
|
|
:state{state}
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
template<class... args>
|
||
|
|
value
|
||
|
|
generator::_return(args&&... a)
|
||
|
|
{
|
||
|
|
function func(get(state, "return"));
|
||
|
|
last = func(state, std::forward<args>(a)...);
|
||
|
|
return has(last, "value")? get(last, "value") : value{};
|
||
|
|
}
|
||
|
|
|
||
|
|
template<class... args>
|
||
|
|
value
|
||
|
|
generator::_throw(args&&... a)
|
||
|
|
{
|
||
|
|
function func(get(state, "throw"));
|
||
|
|
last = func(state, std::forward<args>(a)...);
|
||
|
|
return has(last, "value")? get(last, "value") : value{};
|
||
|
|
}
|
||
|
|
|
||
|
|
template<class... args>
|
||
|
|
value
|
||
|
|
generator::next(args&&... a)
|
||
|
|
{
|
||
|
|
function func(get(state, "next"));
|
||
|
|
last = func(state, std::forward<args>(a)...);
|
||
|
|
return has(last, "value")? get(last, "value") : value{};
|
||
|
|
}
|
||
|
|
|
||
|
|
inline bool
|
||
|
|
generator::done()
|
||
|
|
const
|
||
|
|
{
|
||
|
|
return bool(get(last, "done"));
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace js
|
||
|
|
} // namespace ircd
|