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construct/include/ircd/js/for_each.h

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2.2 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_FOR_EACH_H
namespace ircd {
namespace js {
using closure_id = std::function<void (const id &)>;
using closure_key_val = std::function<void (const value &, const value &)>;
using closure_mutable_key_val = std::function<void (const value &, value &)>;
void for_each(const object &, const closure_id &);
void for_each(const object &, const closure_key_val &);
void for_each(object &, const closure_mutable_key_val &);
inline void
for_each(object &obj,
const closure_mutable_key_val &closure)
{
for_each(obj, [&obj, &closure]
(const id &hid)
{
value val(get(obj, hid));
const value key(hid);
closure(key, val);
});
}
inline void
for_each(const object &obj,
const closure_key_val &closure)
{
for_each(obj, [&obj, &closure]
(const id &hid)
{
const value val(get(obj, hid));
const value key(hid);
closure(key, val);
});
}
inline void
for_each(const object &obj,
const closure_id &closure)
{
JS::Rooted<JS::IdVector> props(*cx, JS::IdVector(cx->ptr()));
if(JS_Enumerate(*cx, obj, &props))
for(size_t i(0); i < props.length(); ++i)
closure(props[i]);
}
} // namespace js
} // namespace ircd