h2-mod/deps/sol2/examples/source/c_call.cpp
2024-03-07 03:33:59 -05:00

55 lines
1.1 KiB
C++

#define SOL_ALL_SAFETIES_ON 1
#include <sol/sol.hpp>
int f1(int) {
return 32;
}
int f2(int, int) {
return 1;
}
struct fer {
double f3(int, int) {
return 2.5;
}
};
int main() {
sol::state lua;
// overloaded function f
lua.set("f",
sol::c_call<sol::wrap<decltype(&f1), &f1>,
sol::wrap<decltype(&f2), &f2>,
sol::wrap<decltype(&fer::f3), &fer::f3>>);
// singly-wrapped function
lua.set("g", sol::c_call<sol::wrap<decltype(&f1), &f1>>);
// without the 'sol::wrap' boilerplate
lua.set("h", sol::c_call<decltype(&f2), &f2>);
// object used for the 'fer' member function call
lua.set("obj", fer());
// call them like any other bound function
lua.script("r1 = f(1)");
lua.script("r2 = f(1, 2)");
lua.script("r3 = f(obj, 1, 2)");
lua.script("r4 = g(1)");
lua.script("r5 = h(1, 2)");
// get the results and see
// if it worked out
int r1 = lua["r1"];
SOL_ASSERT(r1 == 32);
int r2 = lua["r2"];
SOL_ASSERT(r2 == 1);
double r3 = lua["r3"];
SOL_ASSERT(r3 == 2.5);
int r4 = lua["r4"];
SOL_ASSERT(r4 == 32);
int r5 = lua["r5"];
SOL_ASSERT(r5 == 1);
return 0;
}