Started creating scripting library/namespace and added sol2 for interfacing

1 files changed, 40 insertions, 0 deletions

diff --git a/lib/sol2/examples/source/container_with_pairs.cpp b/lib/sol2/examples/source/container_with_pairs.cpp
new file mode 100644
index 0000000..7651a68
--- /dev/null
+++ b/lib/sol2/examples/source/container_with_pairs.cpp
@@ -0,0 +1,40 @@
+#define SOL_ALL_SAFETIES_ON 1

+#include <sol/sol.hpp>

+

+#include "assert.hpp"

+

+#include <unordered_set>

+#include <iostream>

+

+int main() {

+	struct hasher {

+		typedef std::pair<std::string, std::string> argument_type;

+		typedef std::size_t result_type;

+

+		result_type operator()(const argument_type& p) const {

+			return std::hash<std::string>()(p.first);

+		}

+	};

+

+	using my_set = std::unordered_set<std::pair<std::string, std::string>, hasher>;

+

+	std::cout << "=== containers with std::pair<> ===" << std::endl;

+

+	sol::state lua;

+	lua.open_libraries(sol::lib::base);

+

+	lua.set_function("f", []() {

+		return my_set{ { "key1", "value1" },{ "key2", "value2" },{ "key3", "value3" } };

+	});

+

+	lua.safe_script("v = f()");

+	lua.safe_script("print('v:', v)");

+	lua.safe_script("print('#v:', #v)");

+	// note that using my_obj:pairs() is a

+	// way around pairs(my_obj) not working in Lua 5.1/LuaJIT: try it!

+	lua.safe_script("for k,v1,v2 in v:pairs() do print(k, v1, v2) end");

+

+	std::cout << std::endl;

+

+	return 0;

+}