func GetField(L *luajit.State, f string) (float64, bool) {
var result float64
L.Pushstring(f)
L.Gettable(-2)
if L.Isnumber(-1) != true {
print("invalid field in table")
return 0, false
}
result = L.Tonumber(-1)
L.Pop(1)
return result, true
}
func SetField(L *luajit.State, f string, v float64) {
L.Pushstring(f)
L.Pushnumber(v)
L.Settable(-3)
}
func DumpLuaStack(L *luajit.State) {
var top int
top = L.Gettop()
for i := 1; i <= top; i++ {
t := L.Type(i)
switch t {
case luajit.Tstring:
fmt.Println("String : \t", L.Tostring(i))
case luajit.Tboolean:
fmt.Println("Bool : \t\t", L.Toboolean(i))
case luajit.Tnumber:
fmt.Println("Number : \t", L.Tonumber(i))
default:
fmt.Println("Type : \t\t", L.Typename(i))
}
}
print("\n")
}
func summator(L *luajit.State) int {
a := L.Tonumber(1)
b := L.Tonumber(2)
L.Pushnumber(a + b)
return 1
}