diff options
Diffstat (limited to '3rdparty/sol2/test_customizations.cpp')
-rw-r--r-- | 3rdparty/sol2/test_customizations.cpp | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/3rdparty/sol2/test_customizations.cpp b/3rdparty/sol2/test_customizations.cpp new file mode 100644 index 00000000000..dc15a92027c --- /dev/null +++ b/3rdparty/sol2/test_customizations.cpp @@ -0,0 +1,86 @@ +#define SOL_CHECK_ARGUMENTS + +#include <catch.hpp> +#include <sol.hpp> + +#include <unordered_map> +#include <vector> + +struct two_things { + int a; + bool b; +}; + +namespace sol { + + // First, the expected size + // Specialization of a struct + template <> + struct lua_size<two_things> : std::integral_constant<int, 2> {}; + + // Now, specialize various stack structures + namespace stack { + + template <> + struct checker<two_things> { + template <typename Handler> + static bool check(lua_State* L, int index, Handler&& handler, record& tracking) { + // Check first and second second index for being the proper types + bool success = stack::check<int>(L, index, handler) + && stack::check<bool>(L, index + 1, handler); + tracking.use(2); + return success; + } + }; + + template <> + struct getter<two_things> { + static two_things get(lua_State* L, int index, record& tracking) { + // Get the first element + int a = stack::get<int>(L, index); + // Get the second element, + // in the +1 position from the first + bool b = stack::get<bool>(L, index + 1); + // we use 2 slots, each of the previous takes 1 + tracking.use(2); + return two_things{ a, b }; + } + }; + + template <> + struct pusher<two_things> { + static int push(lua_State* L, const two_things& things) { + int amount = stack::push(L, things.a); + amount += stack::push(L, things.b); + // Return 2 things + return amount; + } + }; + + } +} + +TEST_CASE("customization/split-struct", "using the newly documented customization points to handle different kinds of classes") { + sol::state lua; + + // Create a pass-through style of function + lua.script("function f ( a, b, c ) return a + c, b end"); + lua.set_function("g", [](int a, bool b, int c, double d) { + return std::make_tuple(a + c, b, d + 2.5); + }); + + // get the function out of Lua + sol::function f = lua["f"]; + sol::function g = lua["g"]; + + two_things thingsf = f(two_things{ 24, true }, 1); + two_things thingsg; + double d; + sol::tie( thingsg, d ) = g(two_things{ 25, false }, 2, 34.0); + REQUIRE(thingsf.a == 25); + REQUIRE(thingsf.b); + + REQUIRE(thingsg.a == 27); + REQUIRE_FALSE(thingsg.b); + REQUIRE(d == 36.5); +} |