public XmlElement ToXML(XmlDocument doc, XmlElement elem, ScriptInfo si)
{
MoveInfo treeInfo = new MoveInfo(this, SearchTree.ChildrenTree, 0, si.SF);
IElement curElem = treeInfo.Current;
while (curElem != null)
{
if (curElem is Path)
{
XmlElement pathElem = doc.CreateElement("path");
((Path)curElem).ToXML(doc, pathElem, si);
elem.AppendChild(pathElem);
}
else if (curElem is Token &&
!treeInfo.IsIn <Path>(true)) // ignore path tokens
{
XmlElement tokenElem = doc.CreateElement("token");
((Token)curElem).ToXML(doc, tokenElem, si);
elem.AppendChild(tokenElem);
}
curElem = treeInfo.Move(SearchDirection.LeftToRight);
}
return(elem);
}
public override void CheckSemantic(MoveInfo treeInfo, ScriptInfo scriptInfo, CheckingInfo checkingInfo)
{
if (!treeInfo.IsIn <IterationStatement>() && !treeInfo.IsIn <SwitchStatement>())
{
throw new SyntaxException("Keyword 'break' cannot use here!", treeInfo.GetErrorInfo());
}
// unreachable code
MoveInfo blockInfo = new MoveInfo(treeInfo.CurrentBlock, SearchTree.ContentBlock, treeInfo.CurrentIndex, treeInfo);
IElement nextTry = blockInfo.FindNextBlack(SearchDirection.LeftToRight);
if (nextTry != null && nextTry is Statement)
{
scriptInfo.SF.Errors.Add(
new WarningError("Unreachable code detected",
blockInfo.GetErrorInfo(nextTry)));
}
}