private static ExtractMethodResult TryWithoutMakingValueTypesRef(
Document document, NormalizedSnapshotSpanCollection spans, ExtractMethodResult result, CancellationToken cancellationToken)
{
OptionSet options = document.Project.Solution.Options;
if (options.GetOption(ExtractMethodOptions.DontPutOutOrRefOnStruct, document.Project.Language) || !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)
{
options = options.WithChangedOption(ExtractMethodOptions.DontPutOutOrRefOnStruct, document.Project.Language, true);
var newResult = ExtractMethodService.ExtractMethodAsync(
document, spans.Single().Span.ToTextSpan(), options, cancellationToken).WaitAndGetResult(cancellationToken);
// retry succeeded, return new result
if (newResult.Succeeded || newResult.SucceededWithSuggestion)
{
return(newResult);
}
}
return(null);
}
/// <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 bool TryNotifyFailureToUser(Document document, ExtractMethodResult result)
{
var notificationService = document.Project.Solution.Workspace.Services.GetService <INotificationService>();
// see whether we will allow best effort extraction and if it is possible.
if (!document.Project.Solution.Workspace.Options.GetOption(ExtractMethodOptions.AllowBestEffort, document.Project.Language) ||
!result.Status.HasBestEffort() || result.Document == null)
{
if (notificationService != null)
{
notificationService.SendNotification(
string.Join(Environment.NewLine, result.Reasons),
EditorFeaturesResources.ExtractMethodFailedReasons, NotificationSeverity.Error);
}
return(true);
}
// okay, best effort is turned on, let user know it is an best effort
if (notificationService != null)
{
if (!notificationService.ConfirmMessageBox(
string.Join(Environment.NewLine, result.Reasons) + Environment.NewLine + Environment.NewLine +
EditorFeaturesResources.ExtractMethodStillGenerateCode,
EditorFeaturesResources.ExtractMethodFailedReasons, NotificationSeverity.Error))
{
return(true);
}
}
return(false);
}
private void ApplyChangesToBuffer(ExtractMethodResult extractMethodResult, ITextBuffer subjectBuffer, CancellationToken cancellationToken)
{
using var undoTransaction = _undoManager.GetTextBufferUndoManager(subjectBuffer).TextBufferUndoHistory.CreateTransaction("Extract Method");
// apply extract method code to buffer
var(document, _) = extractMethodResult.GetFormattedDocumentAsync(cancellationToken).WaitAndGetResult(cancellationToken);
document.Project.Solution.Workspace.ApplyDocumentChanges(document, cancellationToken);
// apply changes
undoTransaction.Complete();
}
/// <summary>
/// Applies an ExtractMethodResult to the editor.
/// </summary>
private void ApplyChangesToBuffer(ExtractMethodResult extractMethodResult, ITextBuffer subjectBuffer, CancellationToken cancellationToken)
{
using (var undoTransaction = _undoManager.GetTextBufferUndoManager(subjectBuffer).TextBufferUndoHistory.CreateTransaction("Extract Method"))
{
// apply extract method code to buffer
var document = extractMethodResult.Document;
document.Project.Solution.Workspace.ApplyDocumentChanges(document, cancellationToken);
// apply changes
undoTransaction.Complete();
}
}
/// <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 bool TryNotifyFailureToUser(Document document, ExtractMethodResult result, IUIThreadOperationContext waitContext)
{
// 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.
waitContext.TakeOwnership();
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 (!solution.Options.GetOption(ExtractMethodOptions.AllowBestEffort, project.Language) ||
!result.Status.HasBestEffort() ||
result.Document == null)
{
if (notificationService != null)
{
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)
{
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
},
/// <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 bool TryNotifyFailureToUser(Document document, ExtractMethodResult result)
{
var notificationService = document.Project.Solution.Workspace.Services.GetService <INotificationService>();
// see whether we will allow best effort extraction and if it is possible.
if (!document.Project.Solution.Options.GetOption(ExtractMethodOptions.AllowBestEffort, document.Project.Language) ||
!result.Status.HasBestEffort() || result.Document == null)
{
if (notificationService != null)
{
notificationService.SendNotification(
EditorFeaturesResources.Extract_method_failed_with_following_reasons_colon + Environment.NewLine + Environment.NewLine +
string.Join(Environment.NewLine, result.Reasons),
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)
{
if (!notificationService.ConfirmMessageBox(
EditorFeaturesResources.Extract_method_failed_with_following_reasons_colon + Environment.NewLine + Environment.NewLine +
string.Join(Environment.NewLine, result.Reasons) + Environment.NewLine + Environment.NewLine +
EditorFeaturesResources.Do_you_still_want_to_proceed_it_will_generate_broken_code,
title: EditorFeaturesResources.Extract_Method,
severity: NotificationSeverity.Error))
{
return(true);
}
}
return(false);
}
