void IRuleExpressionVisitor.VisitCheckNot(RuleExpression.CheckNot checkNot)
{
if (_currContext.invocationCount == 0)
{
_currContext = _currContext.ForChildExpression(checkNot.Child);
}
else if (_currContext.invocationCount == 1)
{
if (_currContext.childEntries.node == null ||
_currContext.childEntries.prev != null)
{
throw new InvalidOperationException();
}
_currContext = _currContext.ForParentExpression(new ParserNode.CheckNot(
_currContext.rule, _currContext.expression, _currContext.childEntries.node
));
}
else
{
throw new InvalidOperationException();
}
}
