Diff for /gforth/assert.fs between versions 1.2 and 1.13

version 1.2, 1995/01/12 18:37:48 version 1.13, 2003/08/25 14:17:43
Line 1 Line 1
 \ assertions  \ assertions
   
 \ !! factor out line number printing, share with debugging.fs  \ Copyright (C) 1995,1996,1997,1999,2002,2003 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., 59 Temple Place, Suite 330, Boston, MA 02111, 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)      \ this is internal (it is not immediate)
     assert-level @ >      assert-level @ >
     if      if
         POSTPONE (          POSTPONE (
     then ;      then ;
   
 : assert0( ( -- )  : assert0( ( -- ) \ gforth assert-zero
     \ important assertions that should always be turned on      \G Important assertions that should always be turned on.
     0 assertn ; immediate      0 assertn ; immediate
 : assert1( ( -- )  : assert1( ( -- ) \ gforth assert-one
     \ normal assertions; turned on by default      \G Normal assertions; turned on by default.
     1 assertn ; immediate      1 assertn ; immediate
 : assert2( ( -- )  : assert2( ( -- ) \ gforth assert-two
     \ debugging assertions      \G Debugging assertions.
     2 assertn ; immediate      2 assertn ; immediate
 : assert3( ( -- )  : assert3( ( -- ) \ gforth assert-three
     \ slow assertions that you may not want to turn on in normal debugging;      \G Slow assertions that you may not want to turn on in normal debugging;
     \ you would turn them on mainly for thorough checking      \G you would turn them on mainly for thorough checking.
     3 assertn ; immediate      3 assertn ; immediate
 : assert( ( -- )  : assert( ( -- ) \ gforth
     \ equivalent to assert1(      \G Equivalent to @code{assert1(}
     POSTPONE assert1( ; immediate      POSTPONE assert1( ; immediate
   
 : (endassert) ( flag -- )  : (end-assert) ( flag nfile nline -- ) \ gforth-internal
     \ three inline arguments      rot if
     if          2drop
         r> 3 cells + >r EXIT  
     else      else
         r>          .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.
       compile-sourcepos POSTPONE (end-assert) ; immediate

Removed from v.1.2  
changed lines
  Added in v.1.13


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