update MSBuildWorkspace on doc change

src/SharpIDE.Application/Features/Analysis/RoslynAnalysis.cs

@@ -288,4 +288,19 @@ public static class RoslynAnalysis
 			// }
 		}
 	}
+
+	// TODO: Use AdhocWorkspace or something else, to avoid writing to disk on every change
+	public static void UpdateDocument(SharpIdeFile fileModel, string newContent)
+	{
+		Guard.Against.Null(fileModel, nameof(fileModel));
+		Guard.Against.NullOrEmpty(newContent, nameof(newContent));
+
+		var project = _workspace!.CurrentSolution.Projects.Single(s => s.FilePath == ((IChildSharpIdeNode)fileModel).GetNearestProjectNode()!.FilePath);
+		var document = project.Documents.Single(s => s.FilePath == fileModel.Path);
+		Guard.Against.Null(document, nameof(document));
+
+		//var updatedDocument = document.WithText(SourceText.From(newContent));
+		var newSolution = _workspace.CurrentSolution.WithDocumentText(document.Id, SourceText.From(newContent));
+		_workspace.TryApplyChanges(newSolution);
+	}
 }

src/SharpIDE.Godot/IdeRoot.tscn

@@ -59,6 +59,7 @@ highlight_current_line = true
 gutters_draw_line_numbers = true
 code_completion_enabled = true
 auto_brace_completion_enabled = true
+auto_brace_completion_highlight_matching = true
 script = ExtResource("2_qjf5e")
 
 [node name="CodeFixesMenu" type="PopupMenu" parent="VBoxContainer/HBoxContainer/HSplitContainer/SharpIdeCodeEdit"]

src/SharpIDE.Godot/SharpIdeCodeEdit.cs

@@ -45,9 +45,33 @@ public partial class SharpIdeCodeEdit : CodeEdit
 			_currentLine = GetCaretLine();
 			GD.Print($"Selection changed to line {_currentLine}, start {_selectionStartCol}, end {_selectionEndCol}");
 		};
+		TextChanged += OnTextChanged;
 		this.SyntaxHighlighter = _syntaxHighlighter;
 	}
 
+	private void OnTextChanged()
+	{
+		// update the MSBuildWorkspace
+		RoslynAnalysis.UpdateDocument(_currentFile, Text);
+		_ = Task.Run(async () =>
+		{
+			try
+			{
+				var syntaxHighlighting = await RoslynAnalysis.GetDocumentSyntaxHighlighting(_currentFile);
+				var diagnostics = await RoslynAnalysis.GetDocumentDiagnostics(_currentFile);
+				Callable.From(() =>
+				{
+					SetSyntaxHighlightingModel(syntaxHighlighting);
+					SetDiagnosticsModel(diagnostics);
+				}).CallDeferred();
+			}
+			catch (Exception ex)
+			{
+				GD.PrintErr($"Error Calling OnTextChanged: {ex.Message}");
+			}
+		});
+	}
+
 	private void OnCodeFixSelected(long id)
 	{
 		GD.Print($"Code fix selected: {id}");