Bug 2398 - I'm trying to add ctor parameter. Getting the following exception when I start typing with each char.
Summary: I'm trying to add ctor parameter. Getting the following exception when I star...
Alias: None
Product: Xamarin Studio
Classification: Desktop
Component: Text Editor ()
Version: 2.9.x
Hardware: Macintosh Mac OS
: High major
Target Milestone: master
Assignee: Mike Krüger
Depends on:
Reported: 2011-12-07 15:00 UTC by James Clancey
Modified: 2015-08-20 03:24 UTC (History)
3 users (show)

Tags: resolver
Is this bug a regression?: ---
Last known good build:

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Description James Clancey 2011-12-07 15:00:48 UTC
Hi guys,another code completion problem. I'm trying to add ctor parameter. Getting the following exception when I start typeing with each char.

-----------------System.InvalidCastException: Cannot cast from source type to destination type.  at MonoDevelop.CSharp.CSharpAmbience.GetTypeReferenceString (IType reference, MonoDevelop.TypeSystem.OutputSettings settings) [0x0001a] in /private/tmp/source/monodevelop/main/src/addins/CSharpBinding/MonoDevelop.CSharp/CSharpAmbience.cs:352   at MonoDevelop.CSharp.CSharpAmbience.GetParameterString (IParameterizedMember member, IParameter parameter, MonoDevelop.TypeSystem.OutputSettings settings) [0x000f6] in /private/tmp/source/monodevelop/main/src/addins/CSharpBinding/MonoDevelop.CSharp/CSharpAmbience.cs:702   at MonoDevelop.CSharp.CSharpAmbience.AppendParameter (MonoDevelop.TypeSystem.OutputSettings settings, System.Text.StringBuilder result, IParameter parameter) [0x0009e] in /private/tmp/source/monodevelop/main/src/addins/CSharpBinding/MonoDevelop.CSharp/CSharpAmbience.cs:745   at MonoDevelop.CSharp.CSharpAmbience.AppendParameterList (System.Text.StringBuilder result, MonoDevelop.TypeSystem.OutputSettings settings, IEnumerable`1 parameterList) [0x00034] in /private/tmp/source/monodevelop/main/src/addins/CSharpBinding/MonoDevelop.CSharp/CSharpAmbience.cs:726   at MonoDevelop.CSharp.CSharpAmbience.InternalGetMethodString (IMethod method, MonoDevelop.TypeSystem.OutputSettings settings, System.String methodName, Boolean getReturnType) [0x0017f] in /private/tmp/source/monodevelop/main/src/addins/CSharpBinding/MonoDevelop.CSharp/CSharpAmbience.cs:530   at MonoDevelop.CSharp.CSharpAmbience.GetConstructorString (IMethod method, MonoDevelop.TypeSystem.OutputSettings settings) [0x00000] in /private/tmp/source/monodevelop/main/src/addins/CSharpBinding/MonoDevelop.CSharp/CSharpAmbience.cs:551   at MonoDevelop.TypeSystem.Ambience.GetString (IEntity entity, MonoDevelop.TypeSystem.OutputSettings settings) [0x00081] in /private/tmp/source/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.TypeSystem/Ambience.cs:111   at MonoDevelop.TypeSystem.Ambience.GetString (IEntity entity, OutputFlags flags) [0x00000] in /private/tmp/source/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.TypeSystem/Ambience.cs:158   at MonoDevelop.CSharp.PathedDocumentTextEditorExtension.UpdatePath (System.Object sender, Mono.TextEditor.DocumentLocationEventArgs e) [0x00160] in /private/tmp/source/monodevelop/main/src/addins/CSharpBinding/MonoDevelop.CSharp/PathedDocumentTextEditorExtension.cs:270   at MonoDevelop.CSharp.PathedDocumentTextEditorExtension.<Initialize>m__72 (System.Object sender, System.EventArgs e) [0x00000] in /private/tmp/source/monodevelop/main/src/addins/CSharpBinding/MonoDevelop.CSharp/PathedDocumentTextEditorExtension.cs:47   at (wrapper delegate-invoke) <Module>:invoke_void__this___object_EventArgs (object,System.EventArgs)  at (wrapper delegate-invoke) <Module>:invoke_void__this___object_EventArgs (object,System.EventArgs)  at (wrapper delegate-invoke) <Module>:invoke_void__this___object_EventArgs (object,System.EventArgs)  at MonoDevelop.Ide.Gui.Document.OnDocumentParsed (System.EventArgs e) [0x0000d] in /private/tmp/source/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Gui/Document.cs:684   at MonoDevelop.Ide.Gui.Document <StartReparseThread>c__AnonStorey9A <StartReparseThread>c__AnonStorey9B <StartReparseThread>c__AnonStorey9C.<>m__126 (System.Object , System.EventArgs ) [0x0002c] in /private/tmp/source/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Gui/Document.cs:657   at Gtk.Application InvokeCB.Invoke () [0x00000] in <filename unknown>:0   at GLib.Timeout TimeoutProxy.Handler () [0x00000] in <filename unknown>:0 MonoDevelop: 2.9.1Runtime: Mono 2.10.7 (tarball Mon Dec  5 20:41:19 EST 2011)Operating System: Mac OSX (Unix Xamarin
Comment 1 Mike Krüger 2012-01-04 02:49:15 UTC
Fixed in newresolver branch.
Comment 2 PJ 2012-01-05 15:04:19 UTC
Made new class. Added constructor with a string parameter. No crash on autocomplete.

Verified on
MonoTouch 5.0.4
Mono 2.10.8
Comment 3 Alan McGovern 2012-01-05 15:10:26 UTC
I think the bug was:
1) Create a class
2) Create a constructor with zero (or more?) parameters
3) Add an additional parameter (of type string) to that constructor

Is this what you tested?
Comment 4 PJ 2012-01-05 15:31:00 UTC
Yes indeed! I've linked the test case I created. I expanded the steps I did so it's clear now. Thanks!