protected override bool _moveNext()
{
while (iee.MoveNext())
{
bool val;
if (iee.Current.tag != "PREPROC")
{
if (conditional)
{
iee.Current.coord.line += linedelta;
if (file != null)
{
iee.Current.coord.file = file;
}
return(true);
}
continue;
}
tokenize(iee.Current);
bool status = tokens.MoveNext();
switch (tokens.Current.tag)
{
default:
error("unknown preprocessor command: " + tokens.Current.tag);
break;
case "define":
doDefine();
break;
case "undef":
doUndef();
break;
case "line":
doLine();
break;
case "error":
doError();
break;
case "warning":
doWarning();
break;
case "region":
subordinate = new RegionEnumerator(table, iee, emitting && conditional);
if (subordinate.MoveNext())
{
return(true);
}
subordinate = null;
continue;
case "endregion":
error("unexpected #endregion");
break;
case "pragma":
doPragma();
break;
case "if":
val = eval();
subordinate = new IfEnumerator(table, iee, emitting && conditional, val);
if (subordinate.MoveNext())
{
return(true);
}
subordinate = null;
continue;
case "elif":
val = eval();
conditional = val && !condHistory;
condHistory |= conditional;
break;
case "else":
conditional = !condHistory;
condHistory = true;
continue;
case "endif":
return(false);
}
}
error("unfinished #if");
return(false);
}
protected override bool _moveNext()
{
System.Diagnostics.Trace.Assert(emitting);
while (iee.MoveNext())
{
if (iee.Current.tag != "PREPROC")
{
iee.Current.coord.line += linedelta;
if (file != null)
{
iee.Current.coord.file = file;
}
return(true);
}
tokenize(iee.Current);
bool status = tokens.MoveNext();
switch (tokens.Current.tag)
{
default:
error("unknown preprocessor command: " + tokens.Current.tag);
break;
case "define":
doDefine();
break;
case "undef":
doUndef();
break;
case "line":
doLine();
break;
case "error":
doError();
break;
case "warning":
doWarning();
break;
case "region":
subordinate = new RegionEnumerator(table, iee, emitting);
if (subordinate.MoveNext())
{
return(true);
}
subordinate = null;
continue;
case "endregion":
error("unexpected #endregion");
break;
case "pragma":
doPragma();
break;
case "if":
bool val = eval();
subordinate = new IfEnumerator(table, iee, emitting, val);
if (subordinate.MoveNext())
{
return(true);
}
subordinate = null;
continue;
case "elif":
error("unexpected #elif");
break;
case "else":
error("unexpected #else");
break;
case "endif":
error("unexpected #endif");
break;
}
}
return(false);
}