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construct/include/ircd/js/trap.h

80 lines
3.6 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_TRAP_H
namespace ircd {
namespace js {
class trap
{
const std::string _name; // don't touch
const JSClass _class;
// Override these to define JS objects in C
virtual JS::Value on_add(const JSObject &, const jsid &, const JS::Value &);
virtual JS::Value on_set(const JSObject &, const jsid &, const JS::Value &);
virtual JS::Value on_get(const JSObject &, const jsid &, const JS::Value &);
virtual bool on_del(const JSObject &, const jsid &);
virtual bool on_has(const JSObject &, const jsid &);
virtual bool on_enu(const JSObject &);
virtual bool on_call(const unsigned &argc, JS::Value &argv);
virtual bool on_ctor(const unsigned &argc, JS::Value &argv);
private:
void host_exception(const char *fmt, ...) const AFP(2, 3);
void debug(const char *fmt, ...) const AFP(2, 3);
static trap &from(const JSObject &);
static trap &from(const JS::HandleObject &);
// Internal callback interface
static void handle_trace(JSTracer *, JSObject *) noexcept;
static bool handle_inst(JSContext *, JS::HandleObject, JS::MutableHandleValue, bool *yesno) noexcept;
static bool handle_add(JSContext *, JS::HandleObject, JS::HandleId, JS::HandleValue) noexcept;
static bool handle_set(JSContext *, JS::HandleObject, JS::HandleId, JS::MutableHandleValue, JS::ObjectOpResult &) noexcept;
static bool handle_get(JSContext *, JS::HandleObject, JS::HandleId, JS::MutableHandleValue) noexcept;
static bool handle_del(JSContext *, JS::HandleObject, JS::HandleId, JS::ObjectOpResult &) noexcept;
static bool handle_has(JSContext *, JS::HandleObject, JS::HandleId, bool *resolved) noexcept;
static bool handle_enu(JSContext *, JS::HandleObject) noexcept;
static bool handle_call(JSContext *, unsigned argc, JS::Value *argv) noexcept;
static bool handle_ctor(JSContext *, unsigned argc, JS::Value *argv) noexcept;
static void handle_dtor(JSFreeOp *, JSObject *) noexcept;
public:
auto &name() const { return _name; }
auto &jsclass() const { return _class; }
operator const JSClass &() const { return jsclass(); }
operator const JSClass *() const { return &jsclass(); }
object operator()(const object &proto);
object operator()();
trap(std::string name, const uint32_t &flags = 0);
trap(trap &&) = delete;
trap(const trap &) = delete;
virtual ~trap() noexcept;
};
} // namespace js
} // namespace ircd