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

43 lines
801 B
C++

#define SOL_ALL_SAFETIES_ON 1
#include <sol/sol.hpp>
#include <iostream>
void create_namespace_sf(sol::state& lua) {
// this would explode
// lua["sf"]["value"] = 256;
lua[sol::create_if_nil]["sf"]["value"] = 256;
}
int main(int, char*[]) {
std::cout << "=== sol::lua_value/sol::array_value ==="
<< std::endl;
sol::state lua;
lua.open_libraries(sol::lib::base);
const auto& code = R"(
print(sf)
print(sf.value)
assert(sf.value == 256)
)";
auto result
= lua.safe_script(code, sol::script_pass_on_error);
// did not work
SOL_ASSERT(!result.valid());
// create values
create_namespace_sf(lua);
auto result2
= lua.safe_script(code, sol::script_pass_on_error);
// it worked properly
SOL_ASSERT(result2.valid());
std::cout << std::endl;
return 0;
}