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construct/include/ircd/js/trap.h
2018-12-08 13:51:33 -08:00

106 lines
4.4 KiB
C++

// Matrix Construct
//
// Copyright (C) Matrix Construct Developers, Authors & Contributors
// Copyright (C) 2016-2018 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. The
// full license for this software is available in the LICENSE file.
#pragma once
#define HAVE_IRCD_JS_TRAP_H
namespace ircd {
namespace js {
struct trap
{
struct property; // Properties (trap_property.h)
struct function; // Functions (trap_function.h)
struct constint; // Constant integers (trap_constint.h)
std::string name; // classp name
trap *prototrap; // Parent trap
// Static specifications
std::map<std::string, property *> sprop;
std::map<std::string, function *> sfunc;
// Member specifications
std::map<std::string, property *> memprop;
std::map<std::string, function *> memfunc;
protected:
void debug(const void *const &that, const char *fmt, ...) const __attribute__((format(printf, 3, 4)));
// Override these to define JS objects in C
virtual value on_call(object::handle, value::handle, const args &);
virtual value on_set(object::handle, id::handle, value::handle);
virtual value on_get(object::handle, id::handle, value::handle);
virtual void on_add(object::handle, id::handle, value::handle);
virtual bool on_del(object::handle, id::handle);
virtual bool on_has(object::handle, id::handle);
virtual void on_enu(object::handle);
virtual void on_new(object::handle, object &, const args &);
virtual void on_trace(const JSObject *const &);
virtual void on_gc(JSObject *const &);
private: protected:
void host_exception(const void *const &that, const char *fmt, ...) const __attribute__((format(printf, 3, 4)));
// 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_setter(JSContext *, unsigned argc, JS::Value *argv) noexcept;
static bool handle_getter(JSContext *, unsigned argc, JS::Value *argv) 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;
// Aggregate structure specifying internal callback surface
static const JSClassOps cops; // Used for regular objects
static const JSClassOps gcops; // Used for global objects
const JSClass classp; // Instance uses one of the above JSClassOps
public:
static trap &from(const JSObject *const &);
static trap &from(const JSObject &);
auto &jsclass() const { return classp; }
auto &jsclass() { return classp; }
operator const JSClass &() const { return jsclass(); }
operator const JSClass *() const { return &jsclass(); }
object prototype(const object::handle &globals);
object construct(const object::handle &globals, const vector<value>::handle &argv = {});
object construct(const vector<value>::handle &argv = {});
template<class... args> object operator()(args&&...);
trap(const std::string &name, const uint &flags = 0, const uint &prop_flags = 0);
trap(trap &&) = delete;
trap(const trap &) = delete;
virtual ~trap() noexcept;
};
} // namespace js
} // namespace ircd
template<class... args>
ircd::js::object
ircd::js::trap::operator()(args&&... a)
{
const vector<value> argv
{
std::forward<args>(a)...
};
return construct(argv);
}