protected void VerifySendEnterThroughToEnter(string displayText, string textTypedSoFar, bool sendThroughEnterEnabled, bool expected)
{
using (var workspace = CSharpWorkspaceFactory.CreateWorkspaceFromFile(""))
{
var document = workspace.CurrentSolution.Projects.Single().Documents.Single();
var item = new CSharpCompletionItem(workspace, CompletionProvider, displayText, new TextSpan(0, 0), null, null);
var optionService = workspace.Services.GetService <IOptionService>();
var options = optionService.GetOptions().WithChangedOption(CSharpCompletionOptions.AddNewLineOnEnterAfterFullyTypedWord, sendThroughEnterEnabled);
optionService.SetOptions(options);
Assert.Equal(expected, CompletionProvider.SendEnterThroughToEditor(item, textTypedSoFar));
}
}
protected override async Task <IEnumerable <CompletionItem> > GetItemsWorkerAsync(
Document document, int position, CompletionTriggerInfo triggerInfo,
CancellationToken cancellationToken)
{
var tree = await document.GetSyntaxTreeAsync(cancellationToken).ConfigureAwait(false);
if (tree.IsInNonUserCode(position, cancellationToken))
{
return(null);
}
var token = tree.FindTokenOnLeftOfPosition(position, cancellationToken);
if (token.IsMandatoryNamedParameterPosition())
{
return(null);
}
var typeInferenceService = document.GetLanguageService <ITypeInferenceService>();
var span = new TextSpan(position, 0);
var semanticModel = await document.GetSemanticModelForSpanAsync(span, cancellationToken).ConfigureAwait(false);
var type = typeInferenceService.InferType(semanticModel, position,
objectAsDefault: true,
cancellationToken: cancellationToken);
// If we have a Nullable<T>, unwrap it.
if (type.OriginalDefinition.SpecialType == SpecialType.System_Nullable_T)
{
type = type.GetTypeArguments().FirstOrDefault();
if (type == null)
{
return(null);
}
}
if (type.TypeKind != TypeKind.Enum)
{
type = GetCompletionListType(type, semanticModel.GetEnclosingNamedType(position, cancellationToken), semanticModel.Compilation);
if (type == null)
{
return(null);
}
}
if (!type.IsEditorBrowsable(document.ShouldHideAdvancedMembers(), semanticModel.Compilation))
{
return(null);
}
// Does type have any aliases?
ISymbol alias = await type.FindApplicableAlias(position, semanticModel, cancellationToken).ConfigureAwait(false);
var displayService = document.GetLanguageService <ISymbolDisplayService>();
var displayText = alias != null
? alias.Name
: displayService.ToMinimalDisplayString(semanticModel, position, type);
var workspace = document.Project.Solution.Workspace;
var text = await semanticModel.SyntaxTree.GetTextAsync(cancellationToken).ConfigureAwait(false);
var textChangeSpan = CompletionUtilities.GetTextChangeSpan(text, position);
var item = new CSharpCompletionItem(
workspace,
this,
displayText: displayText,
filterSpan: textChangeSpan,
descriptionFactory: CommonCompletionUtilities.CreateDescriptionFactory(workspace, semanticModel, position, alias ?? type),
glyph: (alias ?? type).GetGlyph(),
preselect: true);
return(SpecializedCollections.SingletonEnumerable(item));
}
protected override async Task<IEnumerable<CompletionItem>> GetItemsWorkerAsync(
Document document, int position, CompletionTriggerInfo triggerInfo,
CancellationToken cancellationToken)
{
var tree = await document.GetSyntaxTreeAsync(cancellationToken).ConfigureAwait(false);
if (tree.IsInNonUserCode(position, cancellationToken))
{
return null;
}
var token = tree.FindTokenOnLeftOfPosition(position, cancellationToken);
if (token.IsMandatoryNamedParameterPosition())
{
return null;
}
var typeInferenceService = document.GetLanguageService<ITypeInferenceService>();
var span = new TextSpan(position, 0);
var semanticModel = await document.GetSemanticModelForSpanAsync(span, cancellationToken).ConfigureAwait(false);
var type = typeInferenceService.InferType(semanticModel, position,
objectAsDefault: true,
cancellationToken: cancellationToken);
// If we have a Nullable<T>, unwrap it.
if (type.OriginalDefinition.SpecialType == SpecialType.System_Nullable_T)
{
type = type.GetTypeArguments().FirstOrDefault();
if (type == null)
{
return null;
}
}
if (type.TypeKind != TypeKind.Enum)
{
type = GetCompletionListType(type, semanticModel.GetEnclosingNamedType(position, cancellationToken), semanticModel.Compilation);
if (type == null)
{
return null;
}
}
if (!type.IsEditorBrowsable(document.ShouldHideAdvancedMembers(), semanticModel.Compilation))
{
return null;
}
// Does type have any aliases?
ISymbol alias = await type.FindApplicableAlias(position, semanticModel, cancellationToken).ConfigureAwait(false);
var displayService = document.GetLanguageService<ISymbolDisplayService>();
var displayText = alias != null
? alias.Name
: displayService.ToMinimalDisplayString(semanticModel, position, type);
var workspace = document.Project.Solution.Workspace;
var text = await semanticModel.SyntaxTree.GetTextAsync(cancellationToken).ConfigureAwait(false);
var textChangeSpan = CompletionUtilities.GetTextChangeSpan(text, position);
var item = new CSharpCompletionItem(
workspace,
this,
displayText: displayText,
filterSpan: textChangeSpan,
descriptionFactory: CommonCompletionUtilities.CreateDescriptionFactory(workspace, semanticModel, position, alias ?? type),
glyph: (alias ?? type).GetGlyph(),
preselect: true);
return SpecializedCollections.SingletonEnumerable(item);
}
