func register(L *lua.State, table string, values Map, convertFun bool) {
pop := true
if table == "*" {
pop = false
} else if len(table) > 0 {
L.GetGlobal(table)
if L.IsNil(-1) {
L.NewTable()
L.SetGlobal(table)
L.GetGlobal(table)
}
} else {
L.GetGlobal("_G")
}
for name, val := range values {
t := reflect.TypeOf(val)
if t.Kind() == reflect.Func {
if convertFun {
L.PushGoFunction(GoLuaFunc(L, val))
} else {
lf := val.(func(*lua.State) int)
L.PushGoFunction(lf)
}
} else {
GoToLua(L, t, valueOf(val))
}
L.SetField(-2, name)
}
if pop {
L.Pop(1)
}
}
func isValueProxy(L *lua.State, idx int) bool {
res := false
if L.IsUserdata(idx) {
L.GetMetaTable(idx)
if !L.IsNil(-1) {
L.GetField(-1, "luago.value")
res = !L.IsNil(-1)
L.Pop(1)
}
L.Pop(1)
}
return res
}
// return the Lua table at 'idx' as a copied Go slice. If 't' is nil then the slice
// type is []interface{}
func CopyTableToSlice(L *lua.State, t reflect.Type, idx int) interface{} {
if t == nil {
t = reflect.TypeOf(tslice)
}
te := t.Elem()
n := int(L.ObjLen(idx))
slice := reflect.MakeSlice(t, n, n)
for i := 1; i <= n; i++ {
L.RawGeti(idx, i)
val := LuaToGo(L, te, -1)
slice.Index(i - 1).Set(valueOf(val))
L.Pop(1)
}
return slice.Interface()
}
// return the Lua table at 'idx' as a copied Go map. If 't' is nil then the map
// type is map[string]interface{}
func CopyTableToMap(L *lua.State, t reflect.Type, idx int) interface{} {
if t == nil {
t = reflect.TypeOf(tmap)
}
te, tk := t.Elem(), t.Key()
m := reflect.MakeMap(t)
L.PushNil()
if idx < 0 {
idx--
}
for L.Next(idx) != 0 {
// key at -2, value at -1
key := valueOf(LuaToGo(L, tk, -2))
val := valueOf(LuaToGo(L, te, -1))
m.SetMapIndex(key, val)
L.Pop(1)
}
return m.Interface()
}
func CopyTableToStruct(L *lua.State, t reflect.Type, idx int) interface{} {
if t.Kind() == reflect.Ptr {
t = t.Elem()
}
s := reflect.New(t) // T -> *T
ref := s.Elem()
L.PushNil()
if idx < 0 {
idx--
}
for L.Next(idx) != 0 {
key := L.ToString(-2)
f := ref.FieldByName(key)
if f.IsValid() {
val := valueOf(LuaToGo(L, f.Type(), -1))
f.Set(val)
}
L.Pop(1)
}
return s.Interface()
}
func initializeProxies(L *lua.State) {
add_index := func(name string, fun lua.GoFunction) {
L.PushGoCallback(fun)
L.SetField(-2, name)
}
flagValue := func() {
L.PushBoolean(true)
L.SetField(-2, "luago.value")
L.Pop(1)
}
L.NewMetaTable(SLICE_META)
add_index("__index", slice__index)
add_index("__newindex", slice__newindex)
add_index("__len", slicemap__len)
flagValue()
L.NewMetaTable(MAP_META)
add_index("__index", map__index)
add_index("__newindex", map__newindex)
add_index("__len", slicemap__len)
flagValue()
L.NewMetaTable(STRUCT_META)
add_index("__index", struct__index)
add_index("__newindex", struct__newindex)
flagValue()
L.NewMetaTable(INTERFACE_META)
add_index("__index", interface__index)
flagValue()
L.NewMetaTable(CHANNEL_META)
//~ RegisterFunctions(L,"*",FMap {
//~ "Send":channel_send,
//~ "Recv":channel_recv,
//~ })
L.NewTable()
L.PushGoFunction(channel_send)
L.SetField(-2, "Send")
L.PushGoFunction(channel_recv)
L.SetField(-2, "Recv")
L.SetField(-2, "__index")
flagValue()
}