/// <returns>
/// True: if a failure notification was displayed or the user did not want to proceed in a best effort scenario.
/// Extract Method does not proceed further and is done.
/// False: the user proceeded to a best effort scenario.
/// </returns>
private async Task <bool> TryNotifyFailureToUserAsync(
Document document, ExtractMethodResult result, CancellationToken cancellationToken)
{
// We are about to show a modal UI dialog so we should take over the command execution
// wait context. That means the command system won't attempt to show its own wait dialog
// and also will take it into consideration when measuring command handling duration.
var project = document.Project;
var solution = project.Solution;
var notificationService = solution.Workspace.Services.GetService <INotificationService>();
// see whether we will allow best effort extraction and if it is possible.
if (!_globalOptions.GetOption(ExtractMethodPresentationOptionsStorage.AllowBestEffort, document.Project.Language) ||
!result.Status.HasBestEffort() ||
result.DocumentWithoutFinalFormatting == null)
{
if (notificationService != null)
{
await _threadingContext.JoinableTaskFactory.SwitchToMainThreadAsync(cancellationToken);
notificationService.SendNotification(
EditorFeaturesResources.Extract_method_encountered_the_following_issues + Environment.NewLine +
string.Join("", result.Reasons.Select(r => Environment.NewLine + " " + r)),
title: EditorFeaturesResources.Extract_Method,
severity: NotificationSeverity.Error);
}
return(true);
}
// okay, best effort is turned on, let user know it is an best effort
if (notificationService != null)
{
await _threadingContext.JoinableTaskFactory.SwitchToMainThreadAsync(cancellationToken);
if (!notificationService.ConfirmMessageBox(
EditorFeaturesResources.Extract_method_encountered_the_following_issues + Environment.NewLine +
string.Join("", result.Reasons.Select(r => Environment.NewLine + " " + r)) + Environment.NewLine + Environment.NewLine +
EditorFeaturesResources.Do_you_still_want_to_proceed_This_may_produce_broken_code,
title: EditorFeaturesResources.Extract_Method,
severity: NotificationSeverity.Warning))
{
return(true);
}
}
return(false);
}
private static ExtractMethodResult TryWithoutMakingValueTypesRef(
Document document, NormalizedSnapshotSpanCollection spans, ExtractMethodResult result, ExtractMethodOptions options, CancellationToken cancellationToken)
{
if (options.DontPutOutOrRefOnStruct || !result.Reasons.IsSingle())
{
return(null);
}
var reason = result.Reasons.FirstOrDefault();
var length = FeaturesResources.Asynchronous_method_cannot_have_ref_out_parameters_colon_bracket_0_bracket.IndexOf(':');
if (reason != null && length > 0 && reason.IndexOf(FeaturesResources.Asynchronous_method_cannot_have_ref_out_parameters_colon_bracket_0_bracket.Substring(0, length), 0, length, StringComparison.Ordinal) >= 0)
{
var newResult = ExtractMethodService.ExtractMethodAsync(
document,
spans.Single().Span.ToTextSpan(),
localFunction: false,
options with {
DontPutOutOrRefOnStruct = true
},