[armedbear-ticket] [armedbear] #206: COMPILER-UNSUPPORTED-FEATURE-ERROR is derived from condition, rather than from ERROR

[armedbear]

#206: COMPILER-UNSUPPORTED-FEATURE-ERROR is derived from condition, rather than
from ERROR
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 Reporter:  https://www.google.com/accounts/o8/id?id=aitoawmcq6mzgezjmpqv2tjhvs6isymf6t0hamw  |       Owner:  ehuelsmann
     Type:  defect                                                                            |      Status:  new       
 Priority:  minor                                                                             |   Milestone:            
Component:  compiler                                                                          |     Version:            
 Keywords:                                                                                    |  
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 Hello.

 My coade loads some ASDF systems, and wraps the asdf:operate call
 into handler-case

 {{{
 (handler-case (asdf:operate ...)
     (serious-condition (condition) (...
 }}}

 This should help me to handle the build errors.

 But when I load the let-plus library, ABCL falls into debugger:

 {{{
 #<THREAD "interpreter" {53B73EA7}>: Debugger invoked on condition of type
 COMPILER-UNSUPPORTED-FEATURE-ERROR
   COMPILE-FORM unhandled case ((ANAPHORA:IT #:THIS-S100224))
 Restarts:
   0: RETRY  Retry compiling #<ASDF:CL-SOURCE-FILE "let-plus" "let-plus">.
   1: ACCEPT Continue, treating compiling #<ASDF:CL-SOURCE-FILE "let-plus"
 "let-plus"> as having been successful.
   2: ABORT  Give up on "let-plus"
 [1] LET-PLUS(1): 0
 }}}

 This happens because COMPILER-UNSUPPORTED-FEATURE-ERROR is derived from
 CONDITION (see
 src/org/armedbear/lisp/CompilerUnsupportedFeatureError.java)

 CLHS says: "Conditions of type error might be signaled by the compiler in
 situations where the compilation cannot proceed without intervention."

 http://www.lispworks.com/documentation/lw51/CLHS/Body/03_be.htm

 It would be better to derive COMPILER-UNSUPPORTED-FEATURE-ERROR from ERROR
 (or at least from SERIOUS-CONDITION)

 - Anton Vodonosov

-- 
Ticket URL: <http://trac.common-lisp.net/armedbear/ticket/206>
armedbear <http://common-lisp.net/project/armedbear>
armedbear