public override ISpecificCodeCompletionContext GetCompletionContext(CodeCompletionContext context)
{
TreeOffset startOffset = context.SelectedTreeRange.StartOffset;
ITokenNode tokenNode = GetTokenNode(context);
if (tokenNode == null)
{
return(null);
}
int offset = tokenNode.GetTreeStartOffset().Offset;
int start = startOffset.Offset - offset;
if (start <= 2)
{
return(null);
}
string text = tokenNode.GetText();
if (start > text.Length)
{
return(null);
}
string commentText = text.Substring(2, start - 2);
int emojiStart = commentText.LastIndexOf(':');
if (emojiStart < 0)
{
return(null);
}
for (int index = emojiStart + 1; index < commentText.Length; ++index)
{
if ((index != emojiStart + 1 || !IsEmojiChar(commentText[index])) && (index <= emojiStart + 1 || !IsEmojiChar(commentText[index])))
{
return(null);
}
}
DocumentRange documentRange = context.File.GetDocumentRange(new TreeTextRange(new TreeOffset(offset + emojiStart + 2), new TreeOffset(offset + start)));
if (!documentRange.IsValid())
{
return(null);
}
return(new ContextInDocComment(context, documentRange, new TextLookupRanges(documentRange.TextRange, documentRange.TextRange)));
}
private static ICSharpInvocationReference FindInvocationReference([NotNull] IReference reference)
{
if (reference is ICSharpInvocationReference invocationReference)
{
return(invocationReference);
}
ITreeNode treeNode = reference.GetTreeNode();
var argumentsOwner = treeNode.GetContainingNode <ICSharpArgumentsOwner>();
ITokenNode lBound = argumentsOwner?.LBound;
if (lBound != null && treeNode.GetTreeEndOffset() <= lBound.GetTreeStartOffset())
{
return(argumentsOwner.Reference);
}
return(null);
}
/// <summary>
/// Returns the count of whitespace at the front of the line provided.
/// </summary>
/// <param name="tokenNode">
/// The tokenNode to start at.
/// </param>
/// <returns>
/// The count of the leftmost whitespace.
/// </returns>
public static int GetOffsetToStartOfLine(ITokenNode tokenNode)
{
ITokenNode firstTokenOnLine = Utils.GetFirstNewLineTokenToLeft(tokenNode).GetNextToken();
TreeOffset startPosition = firstTokenOnLine.GetTreeStartOffset();
return tokenNode.GetTreeStartOffset() - startPosition;
}