[armedbear-ticket] [armedbear] #201: &WHOLE broken in DEFINE-METHOD-COMBINATION

[armedbear]

#201: &WHOLE broken in DEFINE-METHOD-COMBINATION
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  Reporter:  https://www.google.com/accounts/o8/id?id=aitoawlfp20ohzeq8vs4btepsaqltprtaimadeg  |       Owner:  somebody        
      Type:  defect                                                                            |      Status:  closed          
  Priority:  minor                                                                             |   Milestone:  1.1.0           
 Component:  CLOS                                                                              |     Version:  1.1.0-dev       
Resolution:  invalid                                                                           |    Keywords:  ansi-conformance
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Changes (by ehuelsmann):

  * status:  new => closed
  * resolution:  => invalid


Comment:

 Well, of course the error can be improved, but the code provided is in
 error. The backquote form should have read:

 `(progn (format nil "using ~a" ',whole))

 Note the quote before the unquote. The difference being that the new code
 evaluates to

 (progn (format nil "using ~a" '(4))

 which takes (4) as a constant while the old code does to


 (progn (format nil "using ~a" (4))

 Which tries to evaluate a function by the name 4.

 Resolving as invalid. Although I appreciate the fact that the error could
 be better, I don't see how at this time. (The problem being that
 LispObject.car() raises a type error "This is not a LIST", while the outer
 code knows which error *should* have been generated, but has no way to
 communicate that to inner code without presumed-large performance impact.

-- 
Ticket URL: <http://trac.common-lisp.net/armedbear/ticket/201#comment:3>
armedbear <http://common-lisp.net/project/armedbear>
armedbear