c/lua:coroutine continuation

c/lua/lua.go

@@ -23,6 +23,14 @@ const (
 // ** space after that to help overflow detection)
 // */
 
+const (
+	REGISTRYINDEX = -MAXSTACK - 1000
+)
+
+func Upvalueindex(i c.Int) c.Int {
+	return c.Int(REGISTRYINDEX) - i
+}
+
 // /* thread status */
 const (
 	OK        = 0
@@ -438,9 +446,19 @@ func (L *State) Isnoneornil(n c.Int) bool     { return L.Type(n) <= 0 }
 // #define lua_pushliteral(L, s)	lua_pushstring(L, "" s)
 // #define lua_pushglobaltable(L)  ((void)lua_rawgeti(L, LUA_REGISTRYINDEX, LUA_RIDX_GLOBALS))
 
-// #define lua_insert(L,idx)	lua_rotate(L, (idx), 1)
-// #define lua_remove(L,idx)	(lua_rotate(L, (idx), -1), lua_pop(L, 1))
-// #define lua_replace(L,idx)	(lua_copy(L, -1, (idx)), lua_pop(L, 1))
+func (L *State) Insert(idx c.Int) {
+	L.Rotate(idx, 1)
+}
+
+func (L *State) Remove(idx c.Int) {
+	L.Rotate(idx, -1)
+	L.Pop(1)
+}
+
+func (L *State) Replace(idx c.Int) {
+	L.Copy(-1, idx)
+	L.Pop(1)
+}
 
 // /* }============================================================== */
 
@@ -478,10 +496,6 @@ const (
 // /*
 // ** Event masks
 // */
-// #define LUA_MASKCALL	(1 << LUA_HOOKCALL)
-// #define LUA_MASKRET	(1 << LUA_HOOKRET)
-// #define LUA_MASKLINE	(1 << LUA_HOOKLINE)
-// #define LUA_MASKCOUNT	(1 << LUA_HOOKCOUNT)
 
 const (
 	MASKCALL  = 1 << HOOKCOUNT