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#define SOL_ALL_SAFETIES_ON 1
#include <sol/sol.hpp>
#include <iostream>
struct pup {
int barks = 0;
void bark() {
++barks; // bark!
}
bool is_cute() const {
return true;
}
};
void ultra_bark(pup& p, int barks) {
for (; barks-- > 0;)
p.bark();
}
void picky_bark(pup& p, std::string s) {
if (s == "bark")
p.bark();
}
int main() {
std::cout << "=== overloading with members ==="
<< std::endl;
sol::state lua;
lua.open_libraries(sol::lib::base);
lua.set_function("bark", sol::overload(ultra_bark, []() {
return "the bark from nowhere";
}));
lua.new_usertype<pup>("pup",
// regular function
"is_cute",
&pup::is_cute,
// overloaded function
"bark",
sol::overload(&pup::bark, &picky_bark));
const auto& code = R"(
barker = pup.new()
print(barker:is_cute())
barker:bark() -- calls member function pup::bark
barker:bark("meow") -- picky_bark, no bark
barker:bark("bark") -- picky_bark, bark
bark(barker, 20) -- calls ultra_bark
print(bark()) -- calls lambda which returns that string
)";
lua.script(code);
pup& barker = lua["barker"];
std::cout << barker.barks << std::endl;
SOL_ASSERT(barker.barks == 22);
std::cout << std::endl;
return 0;
}
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