private static bool If(CodeProcessorContext context, Stream data, TokenStream nodes, bool useExistingState = false)
{
while (!LineBreak(data))
{
Whitespace(context, data, nodes);
if (!Comment(context, data))
{
break;
}
}
TokenStream expression = new TokenStream();
Lazy <HashSet <UInt32> > stack = new Lazy <HashSet <UInt32> >();
while (!LineBreak(context, data, expression))
{
ProcessNoComments(context, data, expression, stack, true);
}
int result; if (useExistingState)
{
result = context.States.Pop();
}
else
{
result = 0;
}
if (result >= 4)
{
result = 2;
}
result |= (PreprocessorEvaluator.Evaluate(expression) ? 0 : 1);
CheckState(context, nodes, result);
return(true);
}
private static void If(CodeProcessorContext context, ConditionToken token, TokenStream nodes, bool useExistingState)
{
TokenStream expression = new TokenStream();
Lazy <HashSet <UInt32> > stack = new Lazy <HashSet <UInt32> >();
while (!LineBreak(context, token.Condition, expression))
{
ProcessNoComments(context, token.Condition, expression, stack, true);
}
int result; if (useExistingState)
{
result = context.States.Pop();
}
else
{
result = 0;
}
if (result >= 4)
{
result = 2;
}
result |= (PreprocessorEvaluator.Evaluate(expression) ? 0 : 1);
CheckState(context, nodes, result);
if (nodes.CanWrite && token.Child != null)
{
GetResult(context, token.Child as PreprocessorToken, nodes);
}
EndCondition(context, token.Next, nodes);
}