public string Run(Grammar grammar)
{
var astValid = grammar.IsValid;
if (astValid != IsValid)
{
IsValid = astValid;
ValidityChanged?.Invoke();
}
var rtf = new RtfBuilder();
grammar.Visit(rtf);
return(rtf.ToString());
}
public void MarkValidity(Control source, bool valid)
{
lock (_lock) {
// Check validity state and add/update this validity source
bool validBefore = false;
_validitySources.TryGetValue(source, out validBefore);
int countBefore = _validitySources.Count;
int numInvalidBefore = _validitySources.Values.Count(v => !v);
_validitySources.AddOrUpdate(source, valid, (ctrl, oldValid) => valid);
// Raise an event if:
// This was the first validity source added
// This is now the only invalid source
// This was the last invalid source and it just became valid
if ((countBefore == 0) ||
(numInvalidBefore == 0 && !valid) ||
(numInvalidBefore == 1 && !validBefore && valid))
{
ValidityChanged?.Invoke(this, EventArgs.Empty);
}
}
}