Merge pull request #1920 from Hosch250/Issue1843

Cancel parses before removing/renaming projects/components to prevent…

Author: Hosch250

RetailCoder.VBE/App.cs

@@ -225,6 +225,8 @@ async void sink_ProjectRemoved(object sender, DispatcherEventArgs<VBProject> e)
                 return;
             }
 
+            _parser.Cancel();
+
             var projectId = e.Item.HelpFile;
             Debug.Assert(projectId != null);
 
@@ -334,6 +336,8 @@ async void sink_ComponentRenamed(object sender, DispatcherRenamedEventArgs<VBCom
                 return;
             }
 
+            _parser.Cancel();
+
             _sourceControlPanelVM.HandleRenamedComponent(e.Item, e.OldName);
 
             _logger.Debug("Component '{0}' was renamed to '{1}'.", e.OldName, e.Item.Name);
@@ -389,6 +393,8 @@ async void sink_ComponentRemoved(object sender, DispatcherEventArgs<VBComponent>
                 return;
             }
 
+            _parser.Cancel(e.Item);
+
             _sourceControlPanelVM.HandleRemovedComponent(e.Item);
 
             _logger.Debug("Component '{0}' was removed.", e.Item.Name);
@@ -404,6 +410,8 @@ async void sink_ComponentReloaded(object sender, DispatcherEventArgs<VBComponent
                 return;
             }
 
+            _parser.Cancel(e.Item);
+
             _logger.Debug("Component '{0}' was reloaded.", e.Item.Name);
             _parser.State.OnParseRequested(sender, e.Item);
         }
@@ -445,6 +453,8 @@ async void sink_ProjectRenamed(object sender, DispatcherRenamedEventArgs<VBProje
                 return;
             }
 
+            _parser.Cancel();
+
             _logger.Debug("Project '{0}' (ID {1}) was renamed to '{2}'.", e.OldName, e.Item.HelpFile, e.Item.Name);
 
             _parser.State.RemoveProject(e.Item.HelpFile);

Rubberduck.Parsing/IRubberduckParser.cs

@@ -1,10 +1,12 @@
 using System;
+using Microsoft.Vbe.Interop;
 using Rubberduck.Parsing.VBA;
 
 namespace Rubberduck.Parsing
 {
     public interface IRubberduckParser : IDisposable
     {
         RubberduckParserState State { get; }
+        void Cancel(VBComponent component = null);
     }
 }