public void PopLuaStack()
{
var stack = _stack;
_stack = stack.Prev;
stack.Prev = null;
}
private void CallLuaClosure(int nArgs, int nResults, Closure c)
{
var nRegs = (int)c.Proto.MaxStackSize;
var nParams = (int)c.Proto.NumParams;
var isVararg = c.Proto.IsVararg == 1;
var newStack = new LuaStack(nRegs + Consts.LUA_MINSTACK, this)
{
Closure = c
};
// pass args, pop func
var funcAndArgs = _stack.PopN(nArgs + 1);
newStack.PushN(funcAndArgs.Slice(1), nParams);
newStack.Top = nRegs;
if (nArgs > nParams && isVararg)
{
newStack.Varargs = funcAndArgs.Slice(nParams + 1);
}
// run closure
PushLuaStack(newStack);
RunLuaClosure();
PopLuaStack();
// return results
if (nResults != 0)
{
var results = newStack.PopN(newStack.Top - nRegs);
_stack.Check(results.Length);
_stack.PushN(results, nResults);
}
}
private void CallCSClosure(int nArgs, int nResults, Closure c)
{
var newStack = new LuaStack(nArgs + Consts.LUA_MINSTACK, this)
{
Closure = c
};
var args = _stack.PopN(nArgs);
newStack.PushN(args, nArgs);
_stack.Pop();
PushLuaStack(newStack);
var r = c.CSFunction(this);
PopLuaStack();
if (nResults != 0)
{
var results = newStack.PopN(r);
_stack.Check(results.Length);
_stack.PushN(results, nResults);
}
}
public void PushLuaStack(LuaStack stack)
{
stack.Prev = _stack;
_stack = stack;
}