h2-mod/deps/sol2/examples/source/overloading_with_fallback.cpp
2024-03-07 03:33:59 -05:00

45 lines
892 B
C++

#define SOL_ALL_SAFETIES_ON 1
#include <sol/sol.hpp>
#include <iostream>
int func_1(int value) {
return 20 + value;
}
std::string func_2(std::string text) {
return "received: " + text;
}
sol::variadic_results fallback(
sol::this_state ts, sol::variadic_args args) {
sol::variadic_results r;
if (args.size() == 2) {
r.push_back({ ts,
sol::in_place,
args.get<int>(0) + args.get<int>(1) });
}
else {
r.push_back({ ts, sol::in_place, 52 });
}
return r;
}
int main(int, char*[]) {
std::cout << "=== overloading with fallback ==="
<< std::endl;
sol::state lua;
lua.open_libraries();
lua.set_function(
"f", sol::overload(func_1, func_2, fallback));
lua.script("print(f(1))"); // func_1
lua.script("print(f('hi'))"); // func_2
lua.script("print(f(22, 11))"); // fallback
lua.script("print(f({}))"); // fallback
return 0;
}