static void ConsumeTillOpenParen(SmashTheState state, bool discardParen)
{
while (state.OpPeekType() != TokenType.ParenOpen)
{
DoCalculation(state);
}
if (discardParen)
{
state.PopOpStack();
}
}
static void DoFunction(SmashTheState state)
{
var token = (CalcFuncToken)state.PopOpStack();
var func = token.Func;
double[] args = new double[func.ArgCount];
// Reverse, since the first out was the last argument in.
for (int i = func.ArgCount - 1; i >= 0; i--)
{
args[i] = state.PopOutput();
}
state.Push(func.Apply(args));
}
static void DoCalculation(SmashTheState state)
{
var token = state.PopOpStack();
switch (token.Type)
{
case TokenType.Operator:
var opToken = (CalcOpToken)token;
DoCalculation(state, opToken.OpType);
break;
case TokenType.Function:
throw new InvalidOperationException("WAKE ME UP");
default:
throw new InvalidOperationException("CAN'T WAKE UP");
}
}