Re: Simulate Polymorphism in Lua
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- Subject: Re: Simulate Polymorphism in Lua
- From: Bradley Smith <gmane@...>
- Date: 2008年1月18日 10:51:21 -0800
RJP Computing wrote:
I would like to bind two functions that are using polymorphisms in C++,
to Lua, is this possible?
example:
Create( std::string path, std::string section )
and
Create( std::string hardware, std::string device,
std::map<std::string, std::string> hardwareInitSettings )
--
Regards,
Ryan
Simply check for existence of the function's third argument.
int native_Create(lua_State *L) {
if (lua_isnoneornil(L, 3)) {
std::string path;
std::string section;
path = luaL_checkstring(L, 1);
section = luaL_checkstring(L, 2);
Create(path, section);
} else {
std::string hardware;
std::string device;
std::map<std::string, std::string> hardwareInitSettings;
hardware = luaL_checkstring(L, 1);
device = luaL_checkstring(L, 2);
luaTableToStringMap(L, 3, hardwareInitSettings);
Create(hardware, device, hardwareInitSettings);
}
return 0;
}