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construct/include/ircd/js/args.h

66 lines
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_ARGS_H
namespace ircd {
namespace js {
struct args
:JS::CallArgs
{
bool empty() const { return length() == 0; }
size_t size() const { return length(); }
bool has(const size_t &at) const { return size() > at; }
value at(const size_t &at) const;
value operator[](const size_t &at) const;
args(const unsigned &argc, JS::Value *const &argv);
};
inline
args::args(const unsigned &argc,
JS::Value *const &argv)
:JS::CallArgs{JS::CallArgsFromVp(argc, argv)}
{
}
inline value
args::operator[](const size_t &at)
const
{
return value{length() > at? JS::CallArgs::operator[](at) : JS::UndefinedValue()};
}
inline value
args::at(const size_t &at)
const
{
if(unlikely(length() <= at))
throw range_error("Missing required argument #%zu", at);
return JS::CallArgs::operator[](at);
}
} // namespace js
} // namespace ircd