func main() {
L := C.luaL_newstate()
defer C.lua_close(L)
C.luaL_openlibs(L) /* Load Lua libraries */
C.luaopen_cmsgpack(L)
sumS := C.CString(sum)
defer C.free(unsafe.Pointer(sumS))
C.luaL_loadstring(L, sumS)
msg, _ := msgpack.Marshal([]int{1, 2, 3, 4, 5, 6})
C.lua_pushstring(L, cptr(msg))
dstr := C.CString("mpdata")
defer C.free(unsafe.Pointer(dstr))
C.luaSetglobal(L, dstr)
C.luaExecute(L)
sum := C.lua_tonumber(L, -1)
fmt.Println(sum) // Output: 21
}
func NewVM() *VM {
L := C.luaL_newstate()
C.clua_initState(L)
vm := &VM{globalL: L}
vm.structTbl = make(map[reflect.Type]*structInfo)
return vm
}
// NewState Creates a new Lua state. It calls luaL_newstate which calls lua_newstate with an allocator based
// on the standard C realloc function and then sets a panic function (see lua_atpanic)
// that prints an error message to the standard error output in case of fatal errors.
// TODO: Handle NULL return of luaL_newstate and error appropriately
// TODO: Set panic function for lua_atpanic
func Newstate() *State {
state := &State{
luastate: C.luaL_newstate(),
}
state.Init()
return state
}
func NewLua() *Lua {
state := C.luaL_newstate()
if state == nil { //NOCOVER
panic("lua state create error")
}
C.luaL_openlibs(state)
lua := &Lua{
State: state,
Functions: make(map[string]*Function),
PrintTraceback: true,
}
return lua
}
// NewState Creates a new Lua state. It calls luaL_newstate which calls lua_newstate with an allocator based
// on the standard C realloc function and then sets a panic function (see lua_atpanic)
// that prints an error message to the standard error output in case of fatal errors.
// TODO: Handle NULL return of luaL_newstate and error appropriately
// TODO: Set panic function for lua_atpanic
func Newstate() *State {
grindex := lua.GlobalRegistry.ReserveValue()
state := &State{
luastate: C.luaL_newstate(),
grindex: grindex,
}
lua.GlobalRegistry.SetValue(grindex, state)
C.lua51_luainit(state.luastate)
return state
}
// 创建新的状态
func NewState() (L *State) {
L = new(State)
L.s = C.luaL_newstate()
//L.lf = make([]interface{}, 5)
// 保存State到lua栈中
var li interface{} = L
C.SetGoState(L.s, unsafe.Pointer(&li))
// 生成metatable，用于回调Go函数
C.InitMetaTable(L.s)
// 注册回收
runtime.SetFinalizer(L, (*State).free)
log.Printf("Create %v.\n", *L)
return
}
// Initializes the Lua context and compiles the source code.
func (e *ExecutionEngine) init() error {
if e.state != nil {
return nil
}
// Initialize the state and open the libraries.
e.state = C.luaL_newstate()
if e.state == nil {
return errors.New("Unable to initialize Lua context.")
}
C.luaL_openlibs(e.state)
// Generate the header file.
err := e.generateHeader()
if err != nil {
e.Destroy()
return err
}
// Compile the script.
e.fullSource = fmt.Sprintf("%v\n%v", e.header, e.source)
source := C.CString(e.fullSource)
defer C.free(unsafe.Pointer(source))
ret := C.luaL_loadstring(e.state, source)
if ret != 0 {
defer e.Destroy()
errstring := C.GoString(C.lua_tolstring(e.state, -1, nil))
return fmt.Errorf("skyd.ExecutionEngine: Syntax Error: %v", errstring)
}
// Run script once to initialize.
ret = C.lua_pcall(e.state, 0, 0, 0)
if ret != 0 {
defer e.Destroy()
errstring := C.GoString(C.lua_tolstring(e.state, -1, nil))
return fmt.Errorf("skyd.ExecutionEngine: Init Error: %v", errstring)
}
// Setup cursor.
err = e.initCursor()
if err != nil {
e.Destroy()
return err
}
return nil
}
// luaL_newstate
func NewState() *State {
ls := (C.luaL_newstate())
L := newState(ls)
return L
}
func NewState() *State {
return &State{C.luaL_newstate()}
}
// NewLuaState ...
func NewLuaState() *LuaState {
lua := C.luaL_newstate()
C.luaL_openlibs(lua)
return &LuaState{lua}
}