Diff for /gforth/assert.fs between versions 1.1 and 1.9

version 1.1, 1994/07/08 15:00:28 version 1.9, 2000/09/23 15:05:58
Line 1 Line 1
 \ assertions  \ assertions
   
 \ !! factor out line number printing, share with debugging.fs  \ Copyright (C) 1995,1996,1997,1999 Free Software Foundation, Inc.
   
 variable assert-level \ all assertions above this level are turned off  \ This file is part of Gforth.
   
   \ Gforth is free software; you can redistribute it and/or
   \ modify it under the terms of the GNU General Public License
   \ as published by the Free Software Foundation; either version 2
   \ of the License, or (at your option) any later version.
   
   \ This program is distributed in the hope that it will be useful,
   \ but WITHOUT ANY WARRANTY; without even the implied warranty of
   \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   \ GNU General Public License for more details.
   
   \ You should have received a copy of the GNU General Public License
   \ along with this program; if not, write to the Free Software
   \ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
   
   require source.fs
   
   variable assert-level ( -- a-addr ) \ gforth
   \G All assertions above this level are turned off.
 1 assert-level !  1 assert-level !
   
 : assertn ( n -- )  : assertn ( n -- ) \ gforth assert-n
       \ this is internal (it is not immediate)
     assert-level @ >      assert-level @ >
     if      if
         POSTPONE (          POSTPONE (
     then ;      then ;
   
 : assert0( ( -- )  : assert0( ( -- ) \ gforth assert-zero
       \G Important assertions that should always be turned on.
     0 assertn ; immediate      0 assertn ; immediate
 : assert1( ( -- )  : assert1( ( -- ) \ gforth assert-one
       \G Normal assertions; turned on by default.
     1 assertn ; immediate      1 assertn ; immediate
 : assert2( ( -- )  : assert2( ( -- ) \ gforth assert-two
       \G Debugging assertions.
     2 assertn ; immediate      2 assertn ; immediate
 : assert3( ( -- )  : assert3( ( -- ) \ gforth assert-three
       \G Slow assertions that you may not want to turn on in normal debugging;
       \G you would turn them on mainly for thorough checking.
     3 assertn ; immediate      3 assertn ; immediate
 : assert( ( -- )  : assert( ( -- ) \ gforth
       \G Equivalent to @code{assert1(}
     POSTPONE assert1( ; immediate      POSTPONE assert1( ; immediate
   
 : (endassert) ( flag -- )  : (endassert) ( flag -- ) \ gforth-internal
     \ three inline arguments      \ inline argument sourcepos
     if      if
         r> 3 cells + >r EXIT          r> sourcepos %size + >r EXIT
     else      else
         r>          r> print-sourcepos ." : failed assertion"
         dup 2@ type ." :" cell+ cell+  
         @ 0 .r ." : failed assertion"  
         true abort" assertion failed" \ !! or use a new throw code?          true abort" assertion failed" \ !! or use a new throw code?
     then ;      then ;
   
 : ) ( -- )  : ) ( -- ) \ gforth     close-paren
     POSTPONE (endassert) loadfilename 2@ 2, loadline @ , ; immediate      \G End an assertion.
       POSTPONE (endassert) sourcepos, ; immediate

Removed from v.1.1  
changed lines
  Added in v.1.9


FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>