--- gforth/assert.fs 1995/03/13 09:17:23 1.3 +++ gforth/assert.fs 1999/03/23 20:24:16 1.8 @@ -1,45 +1,62 @@ \ assertions -\ !! factor out line number printing, share with debugging.fs +\ Copyright (C) 1995,1996,1997 Free Software Foundation, Inc. -variable assert-level ( -- a-addr ) \ new -\G 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 ! -: assertn ( n -- ) \ new +: assertn ( n -- ) \ gforth assert-n \ this is internal (it is not immediate) assert-level @ > if POSTPONE ( then ; -: assert0( ( -- ) \ new - \G important assertions that should always be turned on +: assert0( ( -- ) \ gforth assert-zero + \G Important assertions that should always be turned on. 0 assertn ; immediate -: assert1( ( -- ) \ new - \G normal assertions; turned on by default +: assert1( ( -- ) \ gforth assert-one + \G Normal assertions; turned on by default. 1 assertn ; immediate -: assert2( ( -- ) \ new - \G debugging assertions +: assert2( ( -- ) \ gforth assert-two + \G Debugging assertions. 2 assertn ; immediate -: assert3( ( -- ) \ new - \G slow assertions that you may not want to turn on in normal debugging; - \G you would turn them on mainly for thorough checking +: 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 -: assert( ( -- ) \ new - \G equivalent to assert1( +: assert( ( -- ) \ gforth + \G Equivalent to @code{assert1(} POSTPONE assert1( ; immediate -: (endassert) ( flag -- ) \ new - \ three inline arguments +: (endassert) ( flag -- ) \ gforth-internal + \ inline argument sourcepos if - r> 3 cells + >r EXIT + r> sourcepos %size + >r EXIT else - r> - dup 2@ type ." :" cell+ cell+ - @ 0 .r ." : failed assertion" + r> print-sourcepos ." : failed assertion" true abort" assertion failed" \ !! or use a new throw code? then ; -: ) ( -- ) \ new - POSTPONE (endassert) loadfilename 2@ 2, loadline @ , ; immediate +: ) ( -- ) \ gforth close-paren + \G End an assertion. + POSTPONE (endassert) sourcepos, ; immediate