public void MathOperation(LuaState luaState, TokenType opType)
{
LuaValue luaValue1 = luaState.Pop();
LuaValue luaValue2 = luaState.Pop();
luaState.Push(operatorDic[opType](luaValue1, luaValue2));
try
{
luaState.Push(operatorDic[opType](luaValue1, luaValue2));
}
catch (Exception e)
{
LuaValue result = null;
try
{
if (luaState.CallMetaFunc(luaValue1, luaValue2, GetMetaFuncName(opType), out result))
{
luaState.Push(result);
}
else
{
throw new Exception("没有找到对应的元方法进行计算！");
}
}
catch (Exception ee)
{
throw e;
}
}
}
public void Len(LuaState luaState, int index)
{
var value = luaState.Get(index);
if (value.Type == LuaValueType.String)
{
luaState.Push(new LuaValue((double)((value.OValue as string).Length)));
}
else if (value.Type == LuaValueType.Table)
{
luaState.Push(new LuaValue((double)((value.OValue as Table.LuaTable).Len())));
}
else
{
LuaValue result = null;
try
{
if (luaState.CallMetaFunc(value, value, GetMetaFuncName(TokenType.Len), out result))
{
luaState.Push(result);
}
}
catch
{
throw new Exception("无法计算该变量长度！");
}
}
}
/// <summary>
/// 连续为寄存器置n个nil值，寄存器起始索引为a，数量为b,c无效
/// </summary>
/// <param name="i"></param>
public void LoadNil(Instruction i)
{
int a = 0, b = 0, c = 0;
i.ABC(ref a, ref b, ref c);
luaState.Push(new LuaValue());
for (int j = a + 1; j <= a + b; j++)
{
luaState.CopyTo(-1, j);
}
luaState.Pop(1);
}
public void Concat(LuaState luaState, int number)
{
if (number == 0)
{
luaState.Push(new LuaValue("", LuaValueType.String));
}
else if (number >= 2)
{
while (number > 1)
{
string str1 = null;
string str2 = null;
if (luaState.Get(luaState.AbsIndex(-1)).ToString(ref str1) && luaState.Get(luaState.AbsIndex(-2)).ToString(ref str2))
{
luaState.Pop(2);
luaState.Push(new LuaValue(str1 + str2, LuaValueType.String));
--number;
continue;
}
else
{
LuaValue result = null;
try
{
var b = luaState.Pop();
var a = luaState.Pop();
if (luaState.CallMetaFunc(a, b, GetMetaFuncName(TokenType.Len), out result))
{
luaState.Push(result);
}
}
catch
{
throw new Exception("该类型的变量无法进行拼接");
}
}
}
}
else
{
throw new Exception("该类型的变量无法进行拼接");
}
}
