private static void Ifndef(CodeProcessorContext context, ConditionToken token, List <FileDescriptor> referenceFiles, List <string> fileLookups, TokenStream nodes)
{
int bytes;
Preprocessor.CheckState(context, nodes, (byte)((context.Definitions.ContainsKey(token.Condition.DecodeUInt32(out bytes))) ? 1 : 0));
if (nodes.CanWrite && token.Child != null)
{
GetResult(context, token.Child as PreprocessorToken, referenceFiles, fileLookups, nodes);
}
EndCondition(context, token.Next, nodes);
}
private static void Else(CodeProcessorContext context, List <FileDescriptor> referenceFiles, List <string> fileLookups, PreprocessorToken token, TokenStream nodes)
{
int result = context.States.Pop();
if (result >= 4)
{
result = 2;
}
Preprocessor.CheckState(context, nodes, result);
if (nodes.CanWrite && token.Child != null)
{
GetResult(context, token.Child as PreprocessorToken, referenceFiles, fileLookups, nodes);
}
EndCondition(context, null, nodes);
}
private static void If(CodeProcessorContext context, ConditionToken token, List <FileDescriptor> referenceFiles, List <string> fileLookups, TokenStream nodes, bool useExistingState)
{
TokenStream expression = new TokenStream();
Lazy <HashSet <UInt32> > stack = new Lazy <HashSet <UInt32> >();
while (!Preprocessor.LineBreak(context, token.Condition, expression))
{
Preprocessor.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);
Preprocessor.CheckState(context, nodes, result);
if (nodes.CanWrite && token.Child != null)
{
GetResult(context, token.Child as PreprocessorToken, referenceFiles, fileLookups, nodes);
}
EndCondition(context, token.Next, nodes);
}