private async Task <IEnumerable <CodeActionOperation> > GetGenerateIntoExistingDocumentAsync(
INamedTypeSymbol namedType,
Project triggeringProject,
GenerateTypeOptionsResult generateTypeOptionsResult,
bool isDialog)
{
var root = await generateTypeOptionsResult.ExistingDocument.GetSyntaxRootAsync(_cancellationToken).ConfigureAwait(false);
var folders = generateTypeOptionsResult.ExistingDocument.Folders;
var namespaceContainersAndUsings = GetNamespaceContainersAndAddUsingsOrImport(isDialog, new List <string>(folders), generateTypeOptionsResult.AreFoldersValidIdentifiers, generateTypeOptionsResult.Project, triggeringProject);
var containers = namespaceContainersAndUsings.containers;
var includeUsingsOrImports = namespaceContainersAndUsings.usingOrImport;
Tuple <INamespaceSymbol, INamespaceOrTypeSymbol, Location> enclosingNamespaceGeneratedTypeToAddAndLocation = null;
if (_targetProjectChangeInLanguage == TargetProjectChangeInLanguage.NoChange)
{
enclosingNamespaceGeneratedTypeToAddAndLocation = await _service.GetOrGenerateEnclosingNamespaceSymbolAsync(
namedType,
containers,
generateTypeOptionsResult.ExistingDocument,
root,
_cancellationToken).ConfigureAwait(false);
}
else
{
enclosingNamespaceGeneratedTypeToAddAndLocation = await _targetLanguageService.GetOrGenerateEnclosingNamespaceSymbolAsync(
namedType,
containers,
generateTypeOptionsResult.ExistingDocument,
root,
_cancellationToken).ConfigureAwait(false);
}
var solution = _semanticDocument.Project.Solution;
var codeGenResult = await CodeGenerator.AddNamespaceOrTypeDeclarationAsync(
solution,
enclosingNamespaceGeneratedTypeToAddAndLocation.Item1,
enclosingNamespaceGeneratedTypeToAddAndLocation.Item2,
new CodeGenerationOptions(afterThisLocation : enclosingNamespaceGeneratedTypeToAddAndLocation.Item3),
_cancellationToken)
.ConfigureAwait(false);
var newRoot = await codeGenResult.GetSyntaxRootAsync(_cancellationToken).ConfigureAwait(false);
var updatedSolution = solution.WithDocumentSyntaxRoot(generateTypeOptionsResult.ExistingDocument.Id, newRoot, PreservationMode.PreserveIdentity);
// Update the Generating Document with a using if required
if (includeUsingsOrImports != null)
{
updatedSolution = await _service.TryAddUsingsOrImportToDocumentAsync(
updatedSolution,
generateTypeOptionsResult.ExistingDocument.Id == _semanticDocument.Document.Id?newRoot : null,
_semanticDocument.Document,
_state.SimpleName,
includeUsingsOrImports,
_cancellationToken).ConfigureAwait(false);
}
updatedSolution = AddProjectReference(generateTypeOptionsResult.Project, triggeringProject, updatedSolution);
return(new CodeActionOperation[] { new ApplyChangesOperation(updatedSolution) });
}