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#define SOL_ALL_SAFETIES_ON 1
#include <sol/sol.hpp>
#include <iostream>
int main() {
std::cout << "=== safe_script usage ===" << std::endl;
sol::state lua;
// uses sol::script_default_on_error, which either panics or
// throws, depending on your configuration and compiler
// settings
try {
auto result1 = lua.safe_script("bad.code");
}
catch (const sol::error& e) {
std::cout << "an expected error has occurred: "
<< e.what() << std::endl;
}
// a custom handler that you write yourself
// is only called when an error happens with loading or
// running the script
auto result2 = lua.safe_script("123 bad.code",
[](lua_State*, sol::protected_function_result pfr) {
// pfr will contain things that went wrong, for
// either loading or executing the script the user
// can do whatever they like here, including
// throw. Otherwise...
sol::error err = pfr;
std::cout
<< "An error (an expected one) occurred: "
<< err.what() << std::endl;
// ... they need to return the
// protected_function_result
return pfr;
});
std::cout << std::endl;
return 0;
}
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