[nem-bug] [Nemerle 0000635]: When _ + _ is used inside a @+ definition, the wrong + is used.

[feedback at nemerle.org]

The following issue has been ASSIGNED.
======================================================================
<http://nemerle.org/bugs/view.php?id=635> 
======================================================================
Reported By:                d
Assigned To:                malekith
======================================================================
Project:                    Nemerle
Issue ID:                   635
Category:                   Compiler (type engine)
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     assigned
======================================================================
Date Submitted:             03-17-2006 20:11 CET
Last Modified:              05-05-2006 13:27 CEST
======================================================================
Summary:                    When _ + _ is used inside a @+ definition, the wrong
+ is used.
Description: 
using Nemerle.Collections.List;

[Record]
public class T {
  public x : list [int];
  public y : list [int];

  public static @+ (a : T, b : T) : T {
    T (Map2 (a.x, b.x, _+_), Map2 (a.y, b.y, _+_))
  }
}

/*
test.n:9:8:9:12: error: in argument http://nemerle.org/bugs/view.php?id=3 (f),
needed a (int * int) ->
System.Object+, got (T+ * T+) -> T-: the types (int * int) and (int * T+)
are not compatible [simple unify]
test.n:9:8:9:12: error: typing error in call
test.n:9:30:9:34: error: in argument http://nemerle.org/bugs/view.php?id=3 (f),
needed a (int * int) ->
System.Object+, got (T+ * T+) -> T-: the types (int * int) and (int * T+)
are not compatible [simple unify]
test.n:9:30:9:34: error: typing error in call
*/

======================================================================

----------------------------------------------------------------------
 nazgul - 05-04-06 21:24 
----------------------------------------------------------------------
This only happens with delayed typing. If the types of parameters are known
from the start, then it works fine.

Issue History
Date Modified  Username       Field                    Change              
======================================================================
03-17-06 20:11 d              New Issue                                    
05-04-06 21:24 nazgul         Note Added: 0001229                          
05-05-06 13:27 malekith       Status                   new => assigned     
05-05-06 13:27 malekith       Assigned To               => malekith        
======================================================================