Sarcasm.Unparsing.FormatYielder.YieldBeforeComments C# (CSharp) Méthode

        internal IEnumerable<UtokenBase> YieldBeforeComments(UnparsableAst owner, Comments comments, UnparseCommentDelegate unparseComment)
        {
            IList<Comment> beforeComments;
            IList<Comment> beforeCommentsForFormatter;
            Func<IEnumerable<Comment>, int, IEnumerable<Comment>> skipOrTake;

            if (direction == Unparser.Direction.LeftToRight)
            {
                beforeComments = comments.Left;
                beforeCommentsForFormatter = comments.Left;
                skipOrTake = Enumerable.Skip;
            }
            else
            {
                beforeComments = comments.Right.ReverseOptimized();
                beforeCommentsForFormatter = comments.Right;
                skipOrTake = Enumerable.Take;
            }

            foreach (var beforeComment in beforeComments.Select((beforeComment, commentIndex) => new { Value = beforeComment, Index = commentIndex }))
            {
                int index;
                int commentCountToSkipOrTake;

                if (direction == Unparser.Direction.LeftToRight)
                {
                    index = beforeComment.Index;
                    commentCountToSkipOrTake = index + 1;
                }
                else
                {
                    index = beforeComments.Count - 1 - beforeComment.Index;
                    commentCountToSkipOrTake = index;
                }

                foreach (UtokenBase utoken in unparseComment(owner, beforeComment.Value))
                    yield return utoken;

                yield return formatter.GetUtokensBetweenCommentAndOwner(owner, beforeComment.Value, index, beforeComments.Count, skipOrTake(beforeCommentsForFormatter, commentCountToSkipOrTake))
                    .SetKind(InsertedUtokens.Kind.Between)
                    .SetAffected(owner);
            }
        }