mirror of
https://github.com/matrix-construct/construct
synced 2024-12-29 00:44:17 +01:00
56 lines
2 KiB
C++
56 lines
2 KiB
C++
/*
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* Copyright (C) 2016 Charybdis Development Team
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* Copyright (C) 2016 Jason Volk <jason@zemos.net>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice is present in all copies.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#define HAVE_IRCD_JS_GET_H
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namespace ircd {
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namespace js {
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// Get reserved data slots
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JS::Value get(JSObject *const &obj, const reserved &id);
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// Get private data slot
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template<class T> T &get(JSObject *const &, priv_t);
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value get(const object::handle &obj, const id::handle &id);
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value get(const object::handle &obj, const id &id);
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value get(const object::handle &obj, const uint32_t &idx);
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value get(const object::handle &src, const char *const path);
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} // namespace js
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} // namespace ircd
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template<class T>
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T &
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ircd::js::get(JSObject *const &obj,
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priv_t)
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{
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if(unlikely(~flags(obj) & JSCLASS_HAS_PRIVATE))
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throw error("get(priv): Object has no private slot");
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auto *const vp(JS_GetPrivate(obj));
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auto *const sp(reinterpret_cast<priv_ptr *>(vp));
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if(unlikely(!sp || !*sp))
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throw error("get(priv): Object has no private data set");
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return *reinterpret_cast<T *>(sp->get());
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}
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