Started creating scripting library/namespace and added sol2 for interfacing

1 files changed, 52 insertions, 0 deletions

diff --git a/lib/sol2/examples/source/require.cpp b/lib/sol2/examples/source/require.cpp
new file mode 100644
index 0000000..0b485ad
--- /dev/null
+++ b/lib/sol2/examples/source/require.cpp
@@ -0,0 +1,52 @@
+#define SOL_ALL_SAFETIES_ON 1
+#include <sol/sol.hpp>
+
+#include "assert.hpp"
+#include <iostream>
+
+struct some_class {
+	int bark = 2012;
+};
+
+sol::table open_mylib(sol::this_state s) {
+	sol::state_view lua(s);
+
+	sol::table module = lua.create_table();
+	module["func"] = []() { 
+		/* super cool function here */
+		return 2;
+	};
+	// register a class too
+	module.new_usertype<some_class>("some_class",
+		"bark", &some_class::bark
+	);
+
+ 	return module;
+}
+
+int main() {
+	std::cout << "=== require ===" << std::endl;
+
+	sol::state lua;
+	lua.open_libraries(sol::lib::package, sol::lib::base);
+	// sol::c_call takes functions at the template level
+	// and turns it into a lua_CFunction
+	// alternatively, one can use sol::c_call<sol::wrap<callable_struct, callable_struct{}>> to make the call
+	// if it's a constexpr struct
+	lua.require("my_lib", sol::c_call<decltype(&open_mylib), &open_mylib>);
+
+	// run some code against your require'd library
+	lua.safe_script(R"(
+s = my_lib.some_class.new()
+assert(my_lib.func() == 2)
+s.bark = 20
+)");
+
+	some_class& s = lua["s"];
+	c_assert(s.bark == 20);
+	std::cout << "s.bark = " << s.bark << std::endl;
+
+	std::cout << std::endl;
+
+	return 0;
+}
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