Code completion init fails / ruby 1.9 issue

[pingvinen]

When I load a ruby project, the following is output to the console.

WARNING [2011-06-22 11:23:58Z]: RubyCompletion: ruby1.8
at (wrapper managed-to-native) MonoDevelop.RubyBinding.RubyCompletion:ruby_init ()
at MonoDevelop.RubyBinding.RubyCompletion.m__1 () [0x00000] in :0
at MonoDevelop.Ide.DispatchService.GuiSyncDispatch (MonoDevelop.Ide.MessageHandler cb) [0x0000a] in /path_to_my_pkg_build/monodevelop-beta/src/monodevelop-2.5.92/src/core/MonoDevelop.Ide/MonoDevelop.Ide/DispatchService.cs:93
at MonoDevelop.RubyBinding.RubyCompletion.initialize () [0x00000] in :0
at MonoDevelop.RubyBinding.RubyCompletion+c__AnonStorey2.<>m__4 () [0x00000] in :0
at MonoDevelop.RubyBinding.RubyCompletion+c__AnonStorey51[System.Collections.Generic.List1[MonoDevelop.Projects.Dom.Error]].<>m__6 () [0x00000] in :0
at MonoDevelop.Ide.DispatchService.GuiSyncDispatch (MonoDevelop.Ide.MessageHandler cb) [0x0000a] in /path_to_my_pkg_build/monodevelop-beta/src/monodevelop-2.5.92/src/core/MonoDevelop.Ide/MonoDevelop.Ide/DispatchService.cs:93
at MonoDevelop.RubyBinding.RubyCompletion.GuiThreadSync[List1](System.Func1 realfunction) [0x00000] in :0

I am running MonoDevelop 2.5.92 from console on Arch Linux

[nover]

According to: http://www.ruby-forum.com/topic/215323

There is a bug in the rb_iterate method, however installing the latest trunk version of ruby on my machine does not solve the stacktrace issues with ruby 1.9. Something else must be wrong in the binding.

[nover]

I have been digging some more, and have found the source of the error....

It's in the function "rb_string_value" that something goes wrong. While the ruby-binding plugin is busy passing things into this method, it sends a ruby value type to it which is not a string.

One way to avoid this would be to use the rb_type method of ruby, however it's an internal method, so it can only be used from C / C++.. I have to figure out a way to check the type of a completion before passing it down to ruby.

[nover]

Oh, and the newest stacktrace is:

Stacktrace:

  at (wrapper managed-to-native) MonoDevelop.RubyBinding.RubyCompletion.rb_string_value_cstr (intptr&) 
  at MonoDevelop.RubyBinding.RubyCompletion.FromRubyString (intptr) 
  at MonoDevelop.RubyBinding.RubyCompletion.AddCompletion (intptr,string) 
  at MonoDevelop.RubyBinding.RubyCompletion/c__AnonStorey4.<>m__5 (intptr,intptr) 
  at (wrapper native-to-managed) MonoDevelop.RubyBinding.RubyCompletion/c__AnonStorey4.<>m__5 (intptr,intptr) 
  at (wrapper managed-to-native) MonoDevelop.RubyBinding.RubyCompletion.rb_funcall (intptr,intptr,int) 
  at (wrapper managed-to-native) MonoDevelop.RubyBinding.RubyCompletion.rb_iterate (MonoDevelop.RubyBinding.RubyCompletion/RubyFunction,intptr,MonoDevelop.RubyBinding.RubyCompletion/YieldFunction,intptr) 
  at MonoDevelop.RubyBinding.RubyCompletion.CompleteSymbol (string,string,string,int,string[2]) 
  at MonoDevelop.RubyBinding.RubyCompletion/c__AnonStorey1.<>m__3 () 
  at MonoDevelop.RubyBinding.RubyCompletion/c__AnonStorey5`1.<>m__6 () 
  at MonoDevelop.Ide.DispatchService.GuiSyncDispatch (MonoDevelop.Ide.MessageHandler) [0x0000a] in /my-pgk-build-path/monodevelop-beta/src/monodevelop-2.5.92/src/core/MonoDevelop.Ide/MonoDevelop.Ide/DispatchService.cs:93
  at MonoDevelop.RubyBinding.RubyCompletion.GuiThreadSync (System.Func`1) 
  at MonoDevelop.RubyBinding.RubyCompletion.CompleteGlobal (string,string,int) 
  at MonoDevelop.RubyBinding.RubyTextEditorExtension.HandleCodeCompletion (MonoDevelop.Ide.CodeCompletion.CodeCompletionContext,char,bool,int&) 
  at MonoDevelop.RubyBinding.RubyTextEditorExtension.HandleCodeCompletion (MonoDevelop.Ide.CodeCompletion.CodeCompletionContext,char,int&) 
  at MonoDevelop.Ide.Gui.Content.CompletionTextEditorExtension.KeyPress (Gdk.Key,char,Gdk.ModifierType) [0x000db] in /my-pgk-build-path/monodevelop-beta/src/monodevelop-2.5.92/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Gui.Content/CompletionTextEditorExtension.cs:129
  at MonoDevelop.Ide.Gui.Content.TextEditorExtension.KeyPress (Gdk.Key,char,Gdk.ModifierType) [0x00013] in /my-pgk-build-path/monodevelop-beta/src/monodevelop-2.5.92/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Gui.Content/TextEditorExtension.cs:115
  at MonoDevelop.Ide.Gui.Content.TextEditorExtension.KeyPress (Gdk.Key,char,Gdk.ModifierType) [0x00013] in /my-pgk-build-path/monodevelop-beta/src/monodevelop-2.5.92/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Gui.Content/TextEditorExtension.cs:115
  at MonoDevelop.SourceEditor.ExtensibleTextEditor.ExtensionKeyPress (Gdk.Key,uint,Gdk.ModifierType) [0x00000] in /my-pgk-build-path/monodevelop-beta/src/monodevelop-2.5.92/src/addins/MonoDevelop.SourceEditor2/MonoDevelop.SourceEditor/ExtensibleTextEditor.cs:256
  at MonoDevelop.SourceEditor.ExtensibleTextEditor.OnIMProcessedKeyPressEvent (Gdk.Key,uint,Gdk.ModifierType) [0x004e1] in /my-pgk-build-path/monodevelop-beta/src/monodevelop-2.5.92/src/addins/MonoDevelop.SourceEditor2/MonoDevelop.SourceEditor/ExtensibleTextEditor.cs:442
  at Mono.TextEditor.TextEditor.IMCommit (object,Gtk.CommitArgs) [0x00070] in /my-pgk-build-path/monodevelop-beta/src/monodevelop-2.5.92/src/core/Mono.Texteditor/Mono.TextEditor/TextEditor.cs:494
  at (wrapper runtime-invoke) .runtime_invoke_void__this___object_object (object,intptr,intptr,intptr) 
  at (wrapper managed-to-native) System.Reflection.MonoMethod.InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&) 
  at System.Reflection.MonoMethod.Invoke (object,System.Reflection.BindingFlags,System.Reflection.Binder,object[],System.Globalization.CultureInfo) [0x000d5] in /build/src/mono-2.10.2/mcs/class/corlib/System.Reflection/MonoMethod.cs:226
  at System.Reflection.MethodBase.Invoke (object,object[]) [0x00000] in /build/src/mono-2.10.2/mcs/class/corlib/System.Reflection/MethodBase.cs:96
  at System.Delegate.DynamicInvokeImpl (object[]) [0x000bf] in /build/src/mono-2.10.2/mcs/class/corlib/System/Delegate.cs:408
  at System.MulticastDelegate.DynamicInvokeImpl (object[]) [0x00018] in /build/src/mono-2.10.2/mcs/class/corlib/System/MulticastDelegate.cs:70
  at System.Delegate.DynamicInvoke (object[]) [0x00000] in /build/src/mono-2.10.2/mcs/class/corlib/System/Delegate.cs:382
  at GLib.Signal.ClosureInvokedCB (object,GLib.ClosureInvokedArgs) 
  at GLib.SignalClosure.Invoke (GLib.ClosureInvokedArgs) 
  at GLib.SignalClosure.MarshalCallback (intptr,intptr,uint,intptr,intptr,intptr) 
  at (wrapper native-to-managed) GLib.SignalClosure.MarshalCallback (intptr,intptr,uint,intptr,intptr,intptr) 
  at (wrapper managed-to-native) Gtk.IMContext.gtk_im_context_filter_keypress (intptr,intptr) 
  at Gtk.IMContext.FilterKeypress (Gdk.EventKey) 
  at Mono.TextEditor.TextEditor.IMFilterKeyPress (Gdk.EventKey,Gdk.Key,uint,Gdk.ModifierType) [0x00037] in /my-pgk-build-path/monodevelop-beta/src/monodevelop-2.5.92/src/core/Mono.Texteditor/Mono.TextEditor/TextEditor.cs:809
  at Mono.TextEditor.TextEditor.OnKeyPressEvent (Gdk.EventKey) [0x000c0] in /my-pgk-build-path/monodevelop-beta/src/monodevelop-2.5.92/src/core/Mono.Texteditor/Mono.TextEditor/TextEditor.cs:849
  at MonoDevelop.SourceEditor.ExtensibleTextEditor.OnKeyPressEvent (Gdk.EventKey) [0x00077] in /my-pgk-build-path/monodevelop-beta/src/monodevelop-2.5.92/src/addins/MonoDevelop.SourceEditor2/MonoDevelop.SourceEditor/ExtensibleTextEditor.cs:247
  at Gtk.Widget.keypressevent_cb (intptr,intptr) 
  at (wrapper native-to-managed) Gtk.Widget.keypressevent_cb (intptr,intptr) 
  at (wrapper managed-to-native) Gtk.Widget.gtksharp_widget_base_key_press_event (intptr,intptr) 
  at Gtk.Widget.OnKeyPressEvent (Gdk.EventKey) 
  at MonoDevelop.Ide.Gui.DefaultWorkbench.OnKeyPressEvent (Gdk.EventKey) [0x00103] in /my-pgk-build-path/monodevelop-beta/src/monodevelop-2.5.92/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Gui/DefaultWorkbench.cs:1045
  at Gtk.Widget.keypressevent_cb (intptr,intptr) 
  at (wrapper native-to-managed) Gtk.Widget.keypressevent_cb (intptr,intptr) 
  at (wrapper managed-to-native) Gtk.Application.gtk_main () 
  at Gtk.Application.Run () 
  at MonoDevelop.Ide.IdeApp.Run () [0x00000] in /my-pgk-build-path/monodevelop-beta/src/monodevelop-2.5.92/src/core/MonoDevelop.Ide/MonoDevelop.Ide/Ide.cs:384
  at MonoDevelop.Ide.IdeStartup.Run (string[]) [0x00748] in /my-pgk-build-path/monodevelop-beta/src/monodevelop-2.5.92/src/core/MonoDevelop.Ide/MonoDevelop.Ide/IdeStartup.cs:265
  at MonoDevelop.Startup.MonoDevelopMain.Main (string[]) [0x00017] in /my-pgk-build-path/monodevelop-beta/src/monodevelop-2.5.92/src/core/MonoDevelop.Startup/MonoDevelop.Startup/MonoDevelopMain.cs:24
  at (wrapper runtime-invoke) .runtime_invoke_int_object (object,intptr,intptr,intptr)