public int Count()
{
if (Expression == "")
{
var ex = new Exception();
ex.Data.Add("Type", "reference to empty cell");
throw ex;
}
if (IsReevaluated)
{
return((int)Value);
}
try
{
var inputStream = new AntlrInputStream(Expression);
var lexer = new GrammarLexer(inputStream);
var commonTokenStream = new CommonTokenStream(lexer);
var parser = new GrammarParser(commonTokenStream);
parser.RemoveErrorListeners();
parser.AddErrorListener(new ParsingErrorListener());
var expr = parser.rule();
int val = (new ParsingVisitor(this)).Visit(expr);
IsReevaluated = true;
return(val);
}
catch
{
throw;
}
}
void CalculateCellExpression(ElectronicTableCell cell)
{
try
{
var inputStream = new AntlrInputStream(cell.Expression);
var lexer = new GrammarLexer(inputStream);
var commonTokenStream = new CommonTokenStream(lexer);
var parser = new GrammarParser(commonTokenStream);
parser.RemoveErrorListeners();
parser.AddErrorListener(new ParsingErrorListener());
var expr = parser.rule();
cell.Value = (new ParsingVisitor(cell)).Visit(expr);
}
catch
{
throw;
}
cell.IsReevaluated = true;
foreach (var dep in cell.Depended)
{
CalculateCellExpression(dep);
}
}
