public void Visit <Result>(IParseTreeVisitor <Result> visitor)
{
if (visitor is IFile f)
{
f.Filename = this.File;
}
if (System.Diagnostics.Debugger.IsAttached)
{
System.Diagnostics.Trace.WriteLine(this.File);
}
var context = this._context;
visitor.Visit(context);
}
private static INode Visit(IParseTreeVisitor <INode> visitor, bool hasTerminal, ITerminalNode terminal, Func <List <INode>, INode> fun, string errMess = "Ошибка разбора выражения", params IParseTree[] children)
{
try
{
if (hasTerminal && terminal == null)
{
return(new NodeError());
}
var subParse = new List <INode>();
foreach (var node in children)
{
if (node == null)
{
if (terminal == null)
{
return(new NodeError());
}
return(new NodeError(terminal, errMess));
}
if (!(node is ITerminalNode))
{
var res = visitor.Visit(node);
subParse.Add(res);
if (res == null)
{
if (terminal == null)
{
return(new NodeError());
}
return(new NodeError(terminal, errMess));
}
if (res is NodeError)
{
if (terminal == null || res.Token != null || ((NodeError)res).ErrMess != null)
{
return(res);
}
return(new NodeError(terminal, errMess));
}
}
}
return(fun(subParse));
}
catch { return(new NodeError()); }
}
public void VisitWith <TResult>(ICharStream input, IParseTreeVisitor <TResult> parseTreeVisitor,
IEnumerable <IAntlrErrorListener <int> > lexerErrorListeners,
IEnumerable <IAntlrErrorListener <IToken> > errorListeners)
{
if (input == null)
{
throw new ArgumentNullException("input");
}
if (parseTreeVisitor == null)
{
throw new ArgumentNullException("parseTreeVisitor");
}
var tree = base.CreateTree(input, lexerErrorListeners, errorListeners);
if (tree != null)
{
parseTreeVisitor.Visit(tree);
}
}
public override void AcceptVisitor(IParseTreeVisitor visitor)
{
visitor.Visit(this);
}
public static T Visit <T>(this ParserRuleContext context, IParseTreeVisitor <T> visitor)
{
return(visitor.Visit(context));
}
