private async void OnBreakpointsChanged(object sender, EventArgs eventArgs)
{
var newBreakpoints = new Dictionary <Breakpoint, ManagerBreakpoint> ();
var snapshot = textBuffer.CurrentSnapshot;
var needsUpdate = false;
foreach (var breakpoint in DebuggingService.Breakpoints.GetBreakpointsAtFile(textDocument.FilePath))
{
if (breakpoint.Line > snapshot.LineCount)
{
continue;
}
if (eventArgs is BreakpointEventArgs breakpointEventArgs && breakpointEventArgs.Breakpoint == breakpoint)
{
needsUpdate = true;
}
var line = snapshot.GetLineFromLineNumber(breakpoint.Line - 1);
var position = line.Start.Position + breakpoint.Column;
var span = await DebuggingService.GetBreakpointSpanAsync(textDocument, position);
if (breakpoints.TryGetValue(breakpoint, out var existingBreakpoint))
{
newBreakpoints.Add(breakpoint, existingBreakpoint);
if (existingBreakpoint.Span != span)
{
// Update if anything was modified
existingBreakpoint.Span = span;
needsUpdate = true;
}
}
else
{
// Update if anything was added
newBreakpoints.Add(breakpoint, new ManagerBreakpoint {
Breakpoint = breakpoint,
TrackingSpan = snapshot.CreateTrackingSpan(span, SpanTrackingMode.EdgeExclusive),
Span = span
});
needsUpdate = true;
}
}
// Update if anything was removed
if (needsUpdate || breakpoints.Keys.Except(newBreakpoints.Keys).Any())
{
needsUpdate = true;
}
breakpoints = newBreakpoints;
if (needsUpdate)
{
BreakpointsChanged?.Invoke(this, new SnapshotSpanEventArgs(new SnapshotSpan(snapshot, 0, snapshot.Length)));
}
}