mirror of
https://github.com/ThePhD/sol2.git
synced 2024-03-22 13:10:44 +08:00
35 lines
1.0 KiB
C++
35 lines
1.0 KiB
C++
#define SOL_ALL_SAFETIES_ON 1
|
|
#include <sol/sol.hpp>
|
|
|
|
#include "assert.hpp"
|
|
|
|
int main(int, char* []) {
|
|
sol::state lua;
|
|
lua.script("function func (a, b) return (a + b) * 2 end");
|
|
|
|
sol::reference func_ref = lua["func"];
|
|
|
|
// for some reason, you need to use the low-level API
|
|
func_ref.push(); // function on stack now
|
|
|
|
// maybe this is in a lua_CFunction you bind,
|
|
// or maybe you're trying to work with a pre-existing system
|
|
// maybe you've used a custom lua_load call, or you're working
|
|
// with state_view's load(lua_Reader, ...) call...
|
|
// here's a little bit of how you can work with the stack
|
|
lua_State* L = lua.lua_state();
|
|
sol::stack_aligned_unsafe_function func(L, -1);
|
|
lua_pushinteger(L, 5); // argument 1, using plain API
|
|
lua_pushinteger(L, 6); // argument 2
|
|
|
|
// take 2 arguments from the top,
|
|
// and use "stack_aligned_function" to call
|
|
int result = func(sol::stack_count(2));
|
|
|
|
// make sure everything is clean
|
|
c_assert(result == 22);
|
|
c_assert(lua.stack_top() == 0); // stack is empty/balanced
|
|
|
|
return 0;
|
|
}
|