[armedbear-ticket] [armedbear] #205: JSS logic for resolving methods a little wonky (could use better diagnostics on why resolution has failed)

[armedbear]

#205: JSS logic for resolving methods a little wonky (could use better
diagnostics on why resolution has failed)
-----------------------------------+----------------------------------------
 Reporter:  mevenson               |       Owner:  mevenson
     Type:  defect                 |      Status:  new     
 Priority:  major                  |   Milestone:  1.1.0   
Component:  libraries              |     Version:  1.0.1   
 Keywords:  jss method-resolution  |  
-----------------------------------+----------------------------------------
 [http://thread.gmane.org/gmane.lisp.armedbear.devel/2252 Jonathan P. Bona
 is working with Alan Ruttenberg] to port LSW from JSS 1 to JSS 3:
 {{{
 I'm working with Alan Ruttenberg to port LSW from the old version of
 JSS to the JSS that is now part of abcl-contrib.

 We've run into the following bug when using with-constant-signature:

 ; these first two work fine:
 (#"substring" "some string" 2 4)  ; "me"
 (#"substring" "some string" 2)     ; "me string"

 ; and so does this
 (with-constant-signature ((substring "substring")) (substring "some
 string" 2 4))   ; "me"

 ; but this breaks:
 (with-constant-signature ((substring "substring")) (substring "some
 string" 2))
 ; Wrong number of arguments for public java.lang.String
 java.lang.String.substring(int,int): expected 2, got 1
 ;   [Condition of type PROGRAM-ERROR]


 A problem seems to be in jss::invoke-find-method, which is finding the
 two argument version of java.lang.String.substring no matter how many
 arguments its given:

 (jss::invoke-find-method "substring" "this is a string" '(1))  ;
 should return the java.lang.String.substring method with one int arg
 ; #<method public java.lang.String java.lang.String.substring(int,int)>

 (jss::invoke-find-method "substring" "this is a string" '(1 2) )
 ; #<method public java.lang.String java.lang.String.substring(int,int)>

 (jss::invoke-find-method "substring" "this is a string" '(1 2 3 4 5 6
 7 8) )  ; should be an error
 ; #<method public java.lang.String java.lang.String.substring(int,int)
 }}}

-- 
Ticket URL: <http://trac.common-lisp.net/armedbear/ticket/205>
armedbear <http://common-lisp.net/project/armedbear>
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