mirror of https://github.com/odrling/Aegisub
57 lines
2.2 KiB
C++
57 lines
2.2 KiB
C++
// Copyright (c) 2014, Thomas Goyne <plorkyeran@aegisub.org>
|
|
//
|
|
// Permission to use, copy, modify, and distribute this software for any
|
|
// purpose with or without fee is hereby granted, provided that the above
|
|
// copyright notice and this permission notice appear in all copies.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
//
|
|
// Aegisub Project http://www.aegisub.org/
|
|
|
|
#include <libaegisub/type_name.h>
|
|
|
|
#include <cstdlib>
|
|
#include <lua.hpp>
|
|
|
|
namespace agi { namespace lua {
|
|
void do_register_lib_function(lua_State *L, const char *name, const char *type_name, void *func);
|
|
void do_register_lib_table(lua_State *L, std::initializer_list<const char *> types);
|
|
|
|
static void register_lib_functions(lua_State *) {
|
|
// Base case of recursion; nothing to do
|
|
}
|
|
|
|
template<typename Func, typename... Rest>
|
|
void register_lib_functions(lua_State *L, const char *name, Func *func, Rest... rest) {
|
|
// This cast isn't legal, but LuaJIT internally requires that it work, so we can rely on it too
|
|
do_register_lib_function(L, name, type_name<Func*>::name().c_str(), (void *)func);
|
|
register_lib_functions(L, rest...);
|
|
}
|
|
|
|
template<typename... Args>
|
|
void register_lib_table(lua_State *L, std::initializer_list<const char *> types, Args... functions) {
|
|
static_assert((sizeof...(functions) & 1) == 0, "Functions must be alternating names and function pointers");
|
|
|
|
do_register_lib_table(L, types); // leaves ffi.cast on the stack
|
|
lua_createtable(L, 0, sizeof...(functions) / 2);
|
|
register_lib_functions(L, functions...);
|
|
lua_remove(L, -2); // ffi.cast function
|
|
// Leaves lib table on the stack
|
|
}
|
|
|
|
template<typename T>
|
|
char *strndup(T const& str) {
|
|
char *ret = static_cast<char*>(malloc(str.size() + 1));
|
|
memcpy(ret, str.data(), str.size());
|
|
ret[str.size()] = 0;
|
|
return ret;
|
|
}
|
|
|
|
} }
|