public async Task <CompletionResult> GetCompletionDataAsync(CompletionContext completionContext, CompletionTriggerInfo info, CancellationToken cancellationToken = default(CancellationToken))
{
if (completionContext == null)
{
throw new ArgumentNullException("completionContext");
}
var document = completionContext.Document;
var semanticModel = await completionContext.GetSemanticModelAsync(cancellationToken).ConfigureAwait(false);
var position = completionContext.Position;
var text = await document.GetTextAsync(cancellationToken).ConfigureAwait(false);
var ctx = await completionContext.GetSyntaxContextAsync(workspace, cancellationToken);
ctx.SemanticModel = semanticModel;
// case lambda parameter (n1, $
if (ctx.TargetToken.IsKind(SyntaxKind.CommaToken) &&
ctx.TargetToken.Parent != null && ctx.TargetToken.Parent.Parent != null &&
ctx.TargetToken.Parent.Parent.IsKind(SyntaxKind.ParenthesizedLambdaExpression))
{
return(CompletionResult.Empty);
}
var result = new CompletionResult {
SyntaxContext = ctx
};
if (position > 0)
{
var nonExclusiveHandlers = new List <CompletionContextHandler> ();
var exclusiveHandlers = new List <CompletionContextHandler> ();
var toRetriggerHandlers = new List <CompletionContextHandler> ();
IEnumerable <CompletionContextHandler> handlerList;
if (completionContext.UseDefaultContextHandlers)
{
handlerList = handlers.Concat(completionContext.AdditionalContextHandlers);
}
else
{
handlerList = completionContext.AdditionalContextHandlers;
}
foreach (var handler in handlerList)
{
if (info.CompletionTriggerReason == CompletionTriggerReason.CompletionCommand || info.CompletionTriggerReason == CompletionTriggerReason.BackspaceOrDeleteCommand || handler.IsTriggerCharacter(text, position - 1))
{
if (await handler.IsExclusiveAsync(completionContext, ctx, info, cancellationToken))
{
exclusiveHandlers.Add(handler);
}
else
{
nonExclusiveHandlers.Add(handler);
}
}
else
{
toRetriggerHandlers.Add(handler);
}
}
foreach (var handler in exclusiveHandlers)
{
var handlerResult = await handler.GetCompletionDataAsync(result, this, completionContext, info, ctx, cancellationToken);
//if (handlerResult != null) {
// Console.WriteLine ("-----" + handler);
// foreach (var item in handlerResult) {
// Console.WriteLine (item.DisplayText);
// }
//} else {
// Console.WriteLine ("-----" + handler + " == NULL");
//}
if (handlerResult != null)
{
result.AddRange(handlerResult);
}
}
if (result.Count == 0)
{
foreach (var handler in nonExclusiveHandlers)
{
var handlerResult = await handler.GetCompletionDataAsync(result, this, completionContext, info, ctx, cancellationToken);
//if (handlerResult != null) {
// Console.WriteLine ("-----" + handler);
// foreach (var item in handlerResult) {
// Console.WriteLine (item.DisplayText);
// }
//} else {
// Console.WriteLine ("-----" + handler + " == NULL");
//}
if (handlerResult != null && handlerResult.Any())
{
result.AddRange(handlerResult);
}
else
{
toRetriggerHandlers.Add(handler);
}
}
if (result.Count > 0)
{
info = info.WithCompletionTriggerReason(CompletionTriggerReason.RetriggerCommand);
foreach (var handler in toRetriggerHandlers)
{
var handlerResult = await handler.GetCompletionDataAsync(result, this, completionContext, info, ctx, cancellationToken);
if (handlerResult != null)
{
result.AddRange(handlerResult);
}
}
}
}
}
// prevent auto selection for "<number>." case
if (ctx.TargetToken.IsKind(SyntaxKind.DotToken))
{
var accessExpr = ctx.TargetToken.Parent as MemberAccessExpressionSyntax;
if (accessExpr != null &&
accessExpr.Expression != null &&
accessExpr.Expression.IsKind(SyntaxKind.NumericLiteralExpression))
{
result.AutoSelect = false;
}
}
if (ctx.LeftToken.Parent != null &&
ctx.LeftToken.Parent.Parent != null &&
ctx.TargetToken.Parent != null && !ctx.TargetToken.Parent.IsKind(SyntaxKind.NameEquals) &&
ctx.LeftToken.Parent.Parent.IsKind(SyntaxKind.AnonymousObjectMemberDeclarator))
{
result.AutoSelect = false;
}
if (ctx.TargetToken.IsKind(SyntaxKind.OpenParenToken) && ctx.TargetToken.GetPreviousToken().IsKind(SyntaxKind.OpenParenToken))
{
var validTypes = TypeGuessing.GetValidTypes(semanticModel, ctx.TargetToken.Parent, cancellationToken);
result.AutoSelect = !validTypes.Any(t => t.IsDelegateType());
}
foreach (var type in ctx.InferredTypes)
{
if (type.TypeKind == TypeKind.Delegate)
{
result.AutoSelect = false;
break;
}
}
if (ctx.CSharpSyntaxContext.IsPossibleTupleContext)
{
result.AutoSelect = false;
}
return(result);
}
public async Task<CompletionResult> GetCompletionDataAsync(CompletionContext completionContext, CompletionTriggerInfo info, CancellationToken cancellationToken = default(CancellationToken))
{
if (completionContext == null)
throw new ArgumentNullException ("completionContext");
var document = completionContext.Document;
var semanticModel = await completionContext.GetSemanticModelAsync (cancellationToken).ConfigureAwait(false);
var position = completionContext.Position;
var text = await document.GetTextAsync (cancellationToken).ConfigureAwait (false);
var ctx = await completionContext.GetSyntaxContextAsync (workspace, cancellationToken);
ctx.SemanticModel = semanticModel;
// case lambda parameter (n1, $
if (ctx.TargetToken.IsKind (SyntaxKind.CommaToken) &&
ctx.TargetToken.Parent != null && ctx.TargetToken.Parent.Parent != null &&
ctx.TargetToken.Parent.Parent.IsKind(SyntaxKind.ParenthesizedLambdaExpression))
return CompletionResult.Empty;
var result = new CompletionResult { SyntaxContext = ctx };
if (position > 0) {
var nonExclusiveHandlers = new List<CompletionContextHandler> ();
var exclusiveHandlers = new List<CompletionContextHandler> ();
var toRetriggerHandlers = new List<CompletionContextHandler> ();
IEnumerable<CompletionContextHandler> handlerList;
if (completionContext.UseDefaultContextHandlers) {
handlerList = handlers.Concat (completionContext.AdditionalContextHandlers);
} else {
handlerList = completionContext.AdditionalContextHandlers;
}
foreach (var handler in handlerList) {
if (info.CompletionTriggerReason == CompletionTriggerReason.CompletionCommand || handler.IsTriggerCharacter (text, position - 1)) {
if (await handler.IsExclusiveAsync (completionContext, ctx, info, cancellationToken)) {
exclusiveHandlers.Add (handler);
} else {
nonExclusiveHandlers.Add (handler);
}
} else {
toRetriggerHandlers.Add (handler);
}
}
foreach (var handler in exclusiveHandlers) {
var handlerResult = handler.GetCompletionDataAsync (result, this, completionContext, info, ctx, cancellationToken).Result;
//if (handlerResult != null) {
// Console.WriteLine ("-----" + handler);
// foreach (var item in handlerResult) {
// Console.WriteLine (item.DisplayText);
// }
//} else {
// Console.WriteLine ("-----" + handler + " == NULL");
//}
if (handlerResult != null)
result.AddRange (handlerResult);
}
if (result.Count == 0) {
foreach (var handler in nonExclusiveHandlers) {
var handlerResult = await handler.GetCompletionDataAsync (result, this, completionContext, info, ctx, cancellationToken);
//if (handlerResult != null) {
// Console.WriteLine ("-----" + handler);
// foreach (var item in handlerResult) {
// Console.WriteLine (item.DisplayText);
// }
//} else {
// Console.WriteLine ("-----" + handler + " == NULL");
//}
if (handlerResult != null && handlerResult.Any ()) {
result.AddRange (handlerResult);
} else {
toRetriggerHandlers.Add (handler);
}
}
if (result.Count > 0) {
info = info.WithCompletionTriggerReason (CompletionTriggerReason.RetriggerCommand);
foreach (var handler in toRetriggerHandlers) {
var handlerResult = await handler.GetCompletionDataAsync (result, this, completionContext, info, ctx, cancellationToken);
if (handlerResult != null)
result.AddRange (handlerResult);
}
}
}
}
// prevent auto selection for "<number>." case
if (ctx.TargetToken.IsKind(SyntaxKind.DotToken)) {
var accessExpr = ctx.TargetToken.Parent as MemberAccessExpressionSyntax;
if (accessExpr != null &&
accessExpr.Expression != null &&
accessExpr.Expression.IsKind(SyntaxKind.NumericLiteralExpression)) {
result.AutoSelect = false;
}
}
if (ctx.LeftToken.Parent != null &&
ctx.LeftToken.Parent.Parent != null &&
ctx.TargetToken.Parent != null && !ctx.TargetToken.Parent.IsKind(SyntaxKind.NameEquals) &&
ctx.LeftToken.Parent.Parent.IsKind(SyntaxKind.AnonymousObjectMemberDeclarator))
result.AutoSelect = false;
if (ctx.TargetToken.IsKind (SyntaxKind.OpenParenToken) && ctx.TargetToken.GetPreviousToken ().IsKind (SyntaxKind.OpenParenToken)) {
var validTypes = TypeGuessing.GetValidTypes (semanticModel, ctx.TargetToken.Parent, cancellationToken);
result.AutoSelect = !validTypes.Any (t => t.IsDelegateType ());
}
foreach (var type in ctx.InferredTypes) {
if (type.TypeKind == TypeKind.Delegate) {
result.AutoSelect = false;
break;
}
}
return result;
}