ICSharpCode.NRefactory.CSharp.Completion.CSharpCompletionEngine.GetCompletionData C# (CSharp) Method

		public IEnumerable<ICompletionData> GetCompletionData(int offset, bool controlSpace)
		{
			this.AutoCompleteEmptyMatch = true;
			this.AutoSelect = true;
			this.DefaultCompletionString = null;
			SetOffset(offset);
			if (offset > 0) {
				char lastChar = document.GetCharAt(offset - 1);
				var result = MagicKeyCompletion(lastChar, controlSpace) ?? Enumerable.Empty<ICompletionData>();
				if (controlSpace && char.IsWhiteSpace(lastChar)) {
					offset -= 2;
					while (offset >= 0 && char.IsWhiteSpace (document.GetCharAt (offset))) {
						offset--;
					}
					if (offset > 0) {
						var nonWsResult = MagicKeyCompletion(
							document.GetCharAt(offset),
							controlSpace
						);
						if (nonWsResult != null) {
							var text = new HashSet<string>(result.Select(r => r.CompletionText));
							result = result.Concat(nonWsResult.Where(r => !text.Contains(r.CompletionText)));
						}
					}
				}
				
				return result;
			}
			return Enumerable.Empty<ICompletionData>();
		}
		

        public static IEnumerable<ICompletionData> DoCodeComplete(string editorText, int offset) // not the best way to put in the whole string every time
        {
            var doc = new ReadOnlyDocument(editorText);
            var location = doc.GetLocation(offset);

            string parsedText = editorText; // TODO: Why are there different values in test cases?


            var syntaxTree = new CSharpParser().Parse(parsedText, "program.cs");
            syntaxTree.Freeze();
            var unresolvedFile = syntaxTree.ToTypeSystem();

            var mb = new DefaultCompletionContextProvider(doc, unresolvedFile);

            IProjectContent pctx = new CSharpProjectContent();
            var refs = new List<IUnresolvedAssembly> { mscorlib.Value, systemCore.Value, systemAssembly.Value };
            pctx = pctx.AddAssemblyReferences(refs);
            pctx = pctx.AddOrUpdateFiles(unresolvedFile);

            var cmp = pctx.CreateCompilation();

            var resolver3 = unresolvedFile.GetResolver(cmp, location);
            var engine = new CSharpCompletionEngine(doc, mb, new TestCompletionDataFactory(resolver3), pctx, resolver3.CurrentTypeResolveContext);


            engine.EolMarker = Environment.NewLine;
            engine.FormattingPolicy = FormattingOptionsFactory.CreateMono();

            var data = engine.GetCompletionData(offset, controlSpace: false);
            return data;

        }