public static async Task <(Document containingDocument, SyntaxAnnotation typeAnnotation)> AddTypeToNewFileAsync(
Solution solution,
string containingNamespaceDisplay,
string fileName,
ProjectId projectId,
IEnumerable <string> folders,
INamedTypeSymbol newSymbol,
Document hintDocument,
CancellationToken cancellationToken)
{
var newDocumentId = DocumentId.CreateNewId(projectId, debugName: fileName);
var newDocumentPath = PathUtilities.CombinePaths(PathUtilities.GetDirectoryName(hintDocument.FilePath), fileName);
var solutionWithInterfaceDocument = solution.AddDocument(newDocumentId, fileName, text: "", folders: folders, filePath: newDocumentPath);
var newDocument = solutionWithInterfaceDocument.GetRequiredDocument(newDocumentId);
var newSemanticModel = await newDocument.GetRequiredSemanticModelAsync(cancellationToken).ConfigureAwait(false);
var options = new CodeGenerationOptions(
contextLocation: newSemanticModel.SyntaxTree.GetLocation(new TextSpan()),
generateMethodBodies: true,
options: await newDocument.GetOptionsAsync(cancellationToken).ConfigureAwait(false));
var namespaceParts = containingNamespaceDisplay.Split('.').Where(s => !string.IsNullOrEmpty(s));
var newTypeDocument = await CodeGenerator.AddNamespaceOrTypeDeclarationAsync(
newDocument.Project.Solution,
newSemanticModel.GetEnclosingNamespace(0, cancellationToken),
newSymbol.GenerateRootNamespaceOrType(namespaceParts.ToArray()),
options : options,
cancellationToken : cancellationToken).ConfigureAwait(false);
var formattingSerivce = newTypeDocument.GetLanguageService <INewDocumentFormattingService>();
if (formattingSerivce is not null)
{
newTypeDocument = await formattingSerivce.FormatNewDocumentAsync(newTypeDocument, hintDocument, cancellationToken).ConfigureAwait(false);
}
var syntaxRoot = await newTypeDocument.GetRequiredSyntaxRootAsync(cancellationToken).ConfigureAwait(false);
var typeAnnotation = new SyntaxAnnotation();
var syntaxFacts = newTypeDocument.GetRequiredLanguageService <ISyntaxFactsService>();
var declarationNode = syntaxRoot.DescendantNodes().First(syntaxFacts.IsTypeDeclaration);
var annotatedRoot = syntaxRoot.ReplaceNode(declarationNode, declarationNode.WithAdditionalAnnotations(typeAnnotation));
newTypeDocument = newTypeDocument.WithSyntaxRoot(annotatedRoot);
var simplified = await Simplifier.ReduceAsync(newTypeDocument, cancellationToken : cancellationToken).ConfigureAwait(false);
var formattedDocument = await Formatter.FormatAsync(simplified, cancellationToken : cancellationToken).ConfigureAwait(false);
return(formattedDocument, typeAnnotation);
}
public static async Task <(Document containingDocument, SyntaxAnnotation typeAnnotation)> AddTypeToNewFileAsync(
Solution solution,
string containingNamespaceDisplay,
string fileName,
ProjectId projectId,
IEnumerable <string> folders,
INamedTypeSymbol newSymbol,
Document hintDocument,
CancellationToken cancellationToken)
{
var newDocumentId = DocumentId.CreateNewId(projectId, debugName: fileName);
var newDocumentPath = PathUtilities.CombinePaths(PathUtilities.GetDirectoryName(hintDocument.FilePath), fileName);
var solutionWithInterfaceDocument = solution.AddDocument(newDocumentId, fileName, text: "", folders: folders, filePath: newDocumentPath);
var newDocument = solutionWithInterfaceDocument.GetRequiredDocument(newDocumentId);
var newSemanticModel = await newDocument.GetRequiredSemanticModelAsync(cancellationToken).ConfigureAwait(false);
var context = new CodeGenerationContext(
contextLocation: newSemanticModel.SyntaxTree.GetLocation(new TextSpan()),
generateMethodBodies: true);
// need to remove the root namespace from the containing namespace display because it is implied
// For C# this does nothing as there is no root namespace (root namespace is empty string)
var generateTypeService = newDocument.GetRequiredLanguageService <IGenerateTypeService>();
var rootNamespace = generateTypeService.GetRootNamespace(newDocument.Project.CompilationOptions);
var index = rootNamespace.IsEmpty() ? -1 : containingNamespaceDisplay.IndexOf(rootNamespace);
// if we did find the root namespace as the first element, then we remove it
// this may leave us with an extra "." character at the start, but when we split it shouldn't matter
var namespaceWithoutRoot = index == 0
? containingNamespaceDisplay.Remove(index, rootNamespace.Length)
: containingNamespaceDisplay;
var namespaceParts = namespaceWithoutRoot.Split('.').Where(s => !string.IsNullOrEmpty(s));
var newTypeDocument = await CodeGenerator.AddNamespaceOrTypeDeclarationAsync(
newDocument.Project.Solution,
newSemanticModel.GetEnclosingNamespace(0, cancellationToken),
newSymbol.GenerateRootNamespaceOrType(namespaceParts.ToArray()),
context,
cancellationToken).ConfigureAwait(false);
var newTypeFormattingOptions = await SyntaxFormattingOptions.FromDocumentAsync(newTypeDocument, cancellationToken).ConfigureAwait(false);
var formattingService = newTypeDocument.GetLanguageService <INewDocumentFormattingService>();
if (formattingService is not null)
{
newTypeDocument = await formattingService.FormatNewDocumentAsync(newTypeDocument, hintDocument, newTypeFormattingOptions, cancellationToken).ConfigureAwait(false);
}
var syntaxRoot = await newTypeDocument.GetRequiredSyntaxRootAsync(cancellationToken).ConfigureAwait(false);
var typeAnnotation = new SyntaxAnnotation();
var syntaxFacts = newTypeDocument.GetRequiredLanguageService <ISyntaxFactsService>();
var declarationNode = syntaxRoot.DescendantNodes().First(syntaxFacts.IsTypeDeclaration);
var annotatedRoot = syntaxRoot.ReplaceNode(declarationNode, declarationNode.WithAdditionalAnnotations(typeAnnotation));
newTypeDocument = newTypeDocument.WithSyntaxRoot(annotatedRoot);
var simplified = await Simplifier.ReduceAsync(newTypeDocument, cancellationToken : cancellationToken).ConfigureAwait(false);
var formattedDocument = await Formatter.FormatAsync(simplified, newTypeFormattingOptions, cancellationToken).ConfigureAwait(false);
return(formattedDocument, typeAnnotation);
}
