! :folding=indent:collapseFolds=1:

! $Id$
!
! Copyright (C) 2003, 2004 Slava Pestov.
! 
! Redistribution and use in source and binary forms, with or without
! modification, are permitted provided that the following conditions are met:
! 
! 1. Redistributions of source code must retain the above copyright notice,
!    this list of conditions and the following disclaimer.
! 
! 2. Redistributions in binary form must reproduce the above copyright notice,
!    this list of conditions and the following disclaimer in the documentation
!    and/or other materials provided with the distribution.
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! THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
! INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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IN: errors
USE: combinators
USE: kernel
USE: namespaces
USE: prettyprint
USE: stack
USE: stdio

: error. ( error -- str ) print ;

: exception? ( exception -- boolean )
    "java.lang.Throwable" is ;

: print-stack-trace ( exception -- )
    [ ] "java.lang.Throwable" "printStackTrace" jinvoke ;

: :j ( -- )
    #! Print the stack trace from the last exception.
    "error" get dup exception? [
        print-stack-trace
    ] [
        "Not an exception: " write .
    ] ifte ;