protected string PrintTokenPaths(IList <int[]> paths)
{
return(paths.Join("\n", arr => {
Context.Entry e = null;
Token t = GetTokenAt(tokens, arr, ref e);
return arr.Join(", ") + ":" + t + " @" + ParseError.FilePositionOf(t, rows);
}));
}
public string FilePositionOf(Token token)
{
List <Context.Entry> traversed = new List <Context.Entry>();
while (!token.IsValid)
{
Context.Entry e = token.GetAsContextEntry();
if (e == null || traversed.IndexOf(e) >= 0)
{
return("???");
}
traversed.Add(e);
token = e.tokens[0];
}
return(ParseError.FilePositionOf(token, rows));
}
public string FilePositionOf(Token token)
{
List <SyntaxTree> traversed = new List <SyntaxTree>();
while (!token.IsValid)
{
SyntaxTree e = token.GetAsSyntaxNode();
if (e == null || traversed.IndexOf(e) >= 0)
{
return("???");
}
traversed.Add(e);
token = e.tokens[0];
}
return(ParseError.FilePositionOf(token, rows));
}
public void FilePositionOf(Token token, out int row, out int col)
{
ParseError.FilePositionOf(token, rows, out row, out col);
}