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-rw-r--r--3rdparty/sol2/test_customizations.cpp86
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);
+}