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