Lua cpp expose
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Exposition to Lua runtime mechanism proposition.
The user has to create an object that is LuaScriptAbleObject, make it inherit the CRTPLuaScriptObject class and voila.
For example, a simple FooBar examples might be:
// Default sample exposer for lua scripts
script_class (SampleObject) {
LUA_SCRIPTABLE_CLASS(SampleObject)
SampleObject() noexcept { fprintf(stderr, "CREATE SampleObject\n"); }
~SampleObject() noexcept { fprintf(stderr, "DESTROY SampleObject\n"); }
static int foo(lua_State *L) noexcept
{
SampleObject *obj = CHECK(L, 1);
double bar = luaL_checknumber(L, 2);
return 0;
}
static constexpr inline auto metaMethods = { luaRegDefaultGC, LUA_DECL_CREATE(SampleObject) };
static constexpr inline auto methods = { LUA_DECL_METHOD(SampleObject, foo) };
};A sample file for a script can be found at utils/lua/sample-spec.lua, this is just a proposition.