protected virtual void notifyListeners()
{
D.assert(_debugAssertNotDisposed());
if (_listeners != null)
{
var localListeners = new List <VoidCallback>(_listeners);
foreach (VoidCallback listener in localListeners)
{
try {
if (_listeners.Contains(listener))
{
listener();
}
}
catch (Exception ex) {
IEnumerable <DiagnosticsNode> infoCollector()
{
yield return(new DiagnosticsProperty <ChangeNotifier>(
$"The {GetType()} sending notification was",
this,
style: DiagnosticsTreeStyle.errorProperty
));
}
UIWidgetsError.reportError(new UIWidgetsErrorDetails(
exception: ex,
library: "foundation library",
context: new ErrorDescription($"while dispatching notifications for {GetType()}"),
informationCollector: infoCollector
));
}
}
}
}
protected virtual void notifyListeners()
{
D.assert(this._debugAssertNotDisposed());
if (this._listeners != null)
{
var localListeners = new List <VoidCallback>(this._listeners);
foreach (VoidCallback listener in localListeners)
{
try {
if (this._listeners.Contains(listener))
{
listener();
}
}
catch (Exception ex) {
UIWidgetsError.reportError(new UIWidgetsErrorDetails(
exception: ex,
library: "foundation library",
context: "while dispatching notifications for " + this.GetType(),
informationCollector: information => {
information.AppendLine("The " + this.GetType() + " sending notification was:");
information.Append(" " + this);
}
));
}
}
}
}
public override string ToString()
{
var buffer = new StringBuilder();
if (this.library.isNotEmpty() || this.context.isNotEmpty())
{
if (this.library.isNotEmpty())
{
buffer.AppendFormat("Error caught by {0}", this.library);
if (this.context.isNotEmpty())
{
buffer.Append(", ");
}
}
else
{
buffer.Append("Exception ");
}
if (this.context.isNotEmpty())
{
buffer.AppendFormat("thrown {0}", this.context);
}
buffer.Append(". ");
}
else
{
buffer.Append("An error was caught. ");
}
buffer.AppendLine(this.exceptionAsString());
if (this.informationCollector != null)
{
this.informationCollector(buffer);
}
if (this.exception.StackTrace != null)
{
IEnumerable <string> stackLines = this.exception.StackTrace.TrimEnd().Split('\n');
if (this.stackFilter != null)
{
stackLines = this.stackFilter(stackLines);
}
else
{
stackLines = UIWidgetsError.defaultStackFilter(stackLines);
}
buffer.Append(string.Join("\n", stackLines.ToArray()));
}
return(buffer.ToString().TrimEnd());
}