private static SyntaxFormattingOptions GetSyntaxFormattingOptionsImpl(ITextBuffer textBuffer, IEditorOptions editorOptions, IIndentationManagerService indentationManager, IGlobalOptionService globalOptions, HostLanguageServices languageServices, bool explicitFormat)
{
var configOptions = new EditorAnalyzerConfigOptions(editorOptions);
var fallbackOptions = globalOptions.GetSyntaxFormattingOptions(languageServices);
var options = configOptions.GetSyntaxFormattingOptions(fallbackOptions, languageServices);
var lineFormattingOptions = GetLineFormattingOptionsImpl(textBuffer, editorOptions, indentationManager, explicitFormat);
return(options.With(lineFormattingOptions));
}
public void UpdatePreview(string text)
{
var service = VisualStudioMefHostServices.Create(_componentModel.GetService <ExportProvider>());
var workspace = new PreviewWorkspace(service);
var fileName = "project." + (Language == "C#" ? "csproj" : "vbproj");
var project = workspace.CurrentSolution.AddProject(fileName, "assembly.dll", Language);
// use the mscorlib, system, and system.core that are loaded in the current process.
string[] references =
{
"mscorlib",
"System",
"System.Core"
};
var metadataService = workspace.Services.GetService <IMetadataService>();
var referenceAssemblies = Thread.GetDomain().GetAssemblies()
.Where(x => references.Contains(x.GetName(true).Name, StringComparer.OrdinalIgnoreCase))
.Select(a => metadataService.GetReference(a.Location, MetadataReferenceProperties.Assembly));
project = project.WithMetadataReferences(referenceAssemblies);
var document = project.AddDocument("document", SourceText.From(text, Encoding.UTF8));
var fallbackFormattingOptions = _globalOptions.GetSyntaxFormattingOptions(document.Project.LanguageServices);
var optionService = workspace.Services.GetRequiredService <IOptionService>();
var configOptions = OptionStore.GetOptions().AsAnalyzerConfigOptions(optionService, document.Project.Language);
var formattingService = document.GetRequiredLanguageService <ISyntaxFormattingService>();
var formattingOptions = formattingService.GetFormattingOptions(configOptions, fallbackFormattingOptions);
var formatted = Formatter.FormatAsync(document, formattingOptions, CancellationToken.None).WaitAndGetResult(CancellationToken.None);
var textBuffer = _textBufferFactoryService.CreateTextBuffer(formatted.GetTextSynchronously(CancellationToken.None).ToString(), _contentType);
var container = textBuffer.AsTextContainer();
var projection = _projectionBufferFactory.CreateProjectionBufferWithoutIndentation(_contentTypeRegistryService,
_editorOptions.CreateOptions(),
textBuffer.CurrentSnapshot,
separator: "",
exposedLineSpans: GetExposedLineSpans(textBuffer.CurrentSnapshot).ToArray());
var textView = _textEditorFactoryService.CreateTextView(projection,
_textEditorFactoryService.CreateTextViewRoleSet(PredefinedTextViewRoles.Interactive));
this.TextViewHost = _textEditorFactoryService.CreateTextViewHost(textView, setFocus: false);
workspace.TryApplyChanges(document.Project.Solution);
workspace.OpenDocument(document.Id, container);
this.TextViewHost.Closed += (s, a) =>
{
workspace.Dispose();
workspace = null;
};
}
public static ValueTask <SyntaxFormattingOptions> GetSyntaxFormattingOptionsAsync(this Document document, IGlobalOptionService globalOptions, CancellationToken cancellationToken) => document.GetSyntaxFormattingOptionsAsync(globalOptions.GetSyntaxFormattingOptions(document.Project.LanguageServices), cancellationToken);