// Export native function to lua.
// - mouguangyi 2016.07.28
public void RegLuaBridgeFunction(LuaBridgeFunction function)
{
var executer = new LuaExecuter(this, function);
LuaLib.LuaPushNumber(luaState, executer.Index);
LuaLib.LuaPushCClosure(luaState, LuaExecuter._Execute, 1);
LuaLib.LuaSetGlobal(luaState, executer.Name);
}
private object _GetObject(string[] remainingPath)
{
object returnValue = null;
for (int i = 0; i < remainingPath.Length; i++)
{
LuaLib.LuaPushString(luaState, remainingPath[i]);
LuaLib.LuaGetTable(luaState, -2);
returnValue = LuaExecuter._ParseLuaValue(luaState, -1);
if (returnValue == null)
{
break;
}
}
return(returnValue);
}
public Dictionary <object, object> ToMap()
{
var map = new Dictionary <object, object>();
int oldTop = LuaLib.LuaGetTop(luaState);
try {
LuaLib.LuaGetRef(this.luaState, this.Reference);
LuaLib.LuaPushNil(this.luaState);
while (0 != LuaLib.LuaNext(this.luaState, -2))
{
map[LuaExecuter._ParseLuaValue(this.luaState, -2)] = LuaExecuter._ParseLuaValue(this.luaState, -1);
LuaLib.LuaSetTop(this.luaState, -2);
}
} finally {
LuaLib.LuaSetTop(this.luaState, oldTop);
}
return(map);
}
public object[] ToArray()
{
var list = new List <object>();
int oldTop = LuaLib.LuaGetTop(luaState);
try {
LuaLib.LuaGetRef(this.luaState, this.Reference);
LuaLib.LuaPushNil(this.luaState);
while (0 != LuaLib.LuaNext(this.luaState, -2))
{
list.Add(LuaExecuter._ParseLuaValue(this.luaState, -1));
LuaLib.LuaSetTop(this.luaState, -2);
}
} finally {
LuaLib.LuaSetTop(this.luaState, oldTop);
}
return(list.ToArray());
}
private object[] _PopValues(LuaState luaState, int oldTop)
{
int newTop = LuaLib.LuaGetTop(luaState);
if (oldTop == newTop)
{
return(null);
}
else
{
var returnValues = new List <object>();
for (int i = oldTop + 1; i <= newTop; i++)
{
returnValues.Add(LuaExecuter._ParseLuaValue(luaState, i));
}
LuaLib.LuaSetTop(luaState, oldTop);
return(returnValues.ToArray());
}
}
private static void _ThrowExceptionFromError(LuaState luaState, int oldTop)
{
object err = LuaExecuter._ParseLuaValue(luaState, -1);
LuaLib.LuaSetTop(luaState, oldTop);
// A pre-wrapped exception - just rethrow it (stack trace of InnerException will be preserved)
var luaEx = err as Exception;
if (null != luaEx)
{
throw luaEx;
}
// A non-wrapped Lua error (best interpreted as a string) - wrap it and throw it
if (null == err)
{
err = "Unknown Lua Error";
}
throw new Exception(err.ToString());
}
public object[] Call(object function, params object[] args)
{
int oldTop = LuaLib.LuaGetTop(this.luaState);
if (function is string)
{
var fullPath = function as string;
var path = fullPath.Split('.');
LuaLib.LuaGetGlobal(this.luaState, path[0]);
function = LuaExecuter._ParseLuaValue(luaState, -1);
if (path.Length > 1)
{
var remainingPath = new string[path.Length - 1];
Array.Copy(path, 1, remainingPath, 0, path.Length - 1);
function = _GetObject(remainingPath);
}
}
LuaExecuter._PushObject(this.luaState, function);
if (null != args)
{
for (int i = 0; i < args.Length; i++)
{
LuaExecuter._PushObject(this.luaState, args[i]);
}
}
try {
int error = LuaLib.LuaPCall(this.luaState, args.Length, -1, 0);
if (error != 0)
{
_ThrowExceptionFromError(this.luaState, oldTop);
}
} catch (Exception e) {
Logger <ILuaRuntime> .X(e);
}
return(_PopValues(this.luaState, oldTop));
}