[nem-bug] [Nemerle 0000415]: Something is not properly interpreted when using event without this. prefix

[feedback at nemerle.org]

The following issue has been RESOLVED.
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<http://nemerle.org/bugs/view.php?id=415> 
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Reported By:                nazgul
Assigned To:                malekith
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Project:                    Nemerle
Issue ID:                   415
Category:                   Compiler
Reproducibility:            always
Severity:                   minor
Priority:                   high
Status:                     resolved
Resolution:                 fixed
Fixed in Version:           
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Date Submitted:             04-19-2005 01:05 CEST
Last Modified:              11-29-2006 15:09 CET
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Summary:                    Something is not properly interpreted when using
event without this. prefix
Description: 
 using System;
 using Gtk;
 class MyView :TextView
 {
         public this()
         {
           // this fails with stange message, should work
                 Buffer.InsertText += fun (_) { Console.Write ("hello")
};

             // this works as expected                 
                 this.Buffer.InsertText += fun (_) { Console.Write
("hello") };                 
                 ;
         }

 }


 

======================================================================
Relationships       ID      Summary
----------------------------------------------------------------------
has duplicate       0000769 Can't subscribe on event if 'Nemerle.Co...
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----------------------------------------------------------------------
 nazgul - 04-19-05 15:20 
----------------------------------------------------------------------
This is very strange... for

  // this fails with stange message, should work
  def tmp = Buffer;
  Buffer.InsertText = tmp.InsertText + fun (_) { System.Console.Write
("hello") };

  // this works as expected
  tmp.InsertText = tmp.InsertText + fun (_) { System.Console.Write
("hello") };     

-dt gives:

t.n:6:10: debug: MyView..ctor -> void :
base ();
def tmp = this.Buffer;
this.Buffer.InsertText = Gtk.InsertTextHandler.op_Addition
(tmp.InsertText, Gtk.InsertTextHandler (def []_N_l2752 (_N_u411 :
(System.Object * Gtk.InsertTextArgs-)) : void {
  System.Console.Write ("hello")
}
_N_l2752));
tmp.InsertText = Gtk.InsertTextHandler.op_Addition (tmp.InsertText,
Gtk.InsertTextHandler (def []_N_l2924 (_N_u412 : (System.Object *
Gtk.InsertTextArgs-)) : void {
  System.Console.Write ("hello")
}
_N_l2924))


so everything is correctly interpreted, but fails...

Somehow this.Buffer vs tmp makes a difference

----------------------------------------------------------------------
 nazgul - 04-19-05 16:10 
----------------------------------------------------------------------
Ok, found the problem:
TheSame method is utterly flawed and it would probably need to consider
infinite number of cases to be correct.

TheSame (Buffer, tmp)  will never return true....

----------------------------------------------------------------------
 nazgul - 04-19-05 19:27 
----------------------------------------------------------------------
The bug triggering this one is in cache_assign_expr (e : PT.PExpr), which
is using 
Macros.IsTypeName (..)

The problem is that Buffer is a type name for System.Buffer, but at the
same time it is this.Buffer - macro creates code for Buffer being type
name.

----------------------------------------------------------------------
 malekith - 11-29-06 15:09 
----------------------------------------------------------------------
Resolved on trunk, r7016 (also resolves
http://nemerle.org/bugs/view.php?id=769).

Issue History
Date Modified  Username       Field                    Change              
======================================================================
04-19-05 01:05 nazgul         New Issue                                    
04-19-05 01:13 rodrigob       Issue Monitored: rodrigob                    
04-19-05 01:15 nazgul         Priority                 normal => high      
04-19-05 01:15 nazgul         Description Updated                          
04-19-05 01:15 nazgul         Additional Information Updated                    
04-19-05 15:20 nazgul         Note Added: 0000704                          
04-19-05 16:10 nazgul         Note Added: 0000705                          
04-19-05 19:27 nazgul         Note Added: 0000706                          
04-23-05 14:47 nazgul         Status                   new => confirmed    
11-29-06 15:09 malekith       Relationship added       has duplicate 0000769
11-29-06 15:09 malekith       Status                   confirmed => resolved
11-29-06 15:09 malekith       Resolution               open => fixed       
11-29-06 15:09 malekith       Assigned To               => malekith        
11-29-06 15:09 malekith       Note Added: 0001532                          
======================================================================