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| 1 : | anton | 1.1 | \ assertions |
| 2 : | |||
| 3 : | anton | 1.12 | \ Copyright (C) 1995,1996,1997,1999,2002 Free Software Foundation, Inc. |
| 4 : | anton | 1.5 | |
| 5 : | \ This file is part of Gforth. | ||
| 6 : | |||
| 7 : | \ Gforth is free software; you can redistribute it and/or | ||
| 8 : | \ modify it under the terms of the GNU General Public License | ||
| 9 : | \ as published by the Free Software Foundation; either version 2 | ||
| 10 : | \ of the License, or (at your option) any later version. | ||
| 11 : | |||
| 12 : | \ This program is distributed in the hope that it will be useful, | ||
| 13 : | \ but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 14 : | \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 15 : | \ GNU General Public License for more details. | ||
| 16 : | |||
| 17 : | \ You should have received a copy of the GNU General Public License | ||
| 18 : | \ along with this program; if not, write to the Free Software | ||
| 19 : | anton | 1.10 | \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
| 20 : | anton | 1.5 | |
| 21 : | require source.fs | ||
| 22 : | anton | 1.1 | |
| 23 : | anton | 1.4 | variable assert-level ( -- a-addr ) \ gforth |
| 24 : | crook | 1.8 | \G All assertions above this level are turned off. |
| 25 : | anton | 1.1 | 1 assert-level ! |
| 26 : | |||
| 27 : | anton | 1.4 | : assertn ( n -- ) \ gforth assert-n |
| 28 : | anton | 1.2 | \ this is internal (it is not immediate) |
| 29 : | anton | 1.1 | assert-level @ > |
| 30 : | if | ||
| 31 : | POSTPONE ( | ||
| 32 : | then ; | ||
| 33 : | |||
| 34 : | anton | 1.4 | : assert0( ( -- ) \ gforth assert-zero |
| 35 : | crook | 1.8 | \G Important assertions that should always be turned on. |
| 36 : | anton | 1.1 | 0 assertn ; immediate |
| 37 : | anton | 1.4 | : assert1( ( -- ) \ gforth assert-one |
| 38 : | crook | 1.8 | \G Normal assertions; turned on by default. |
| 39 : | anton | 1.1 | 1 assertn ; immediate |
| 40 : | anton | 1.4 | : assert2( ( -- ) \ gforth assert-two |
| 41 : | crook | 1.8 | \G Debugging assertions. |
| 42 : | anton | 1.1 | 2 assertn ; immediate |
| 43 : | anton | 1.4 | : assert3( ( -- ) \ gforth assert-three |
| 44 : | crook | 1.8 | \G Slow assertions that you may not want to turn on in normal debugging; |
| 45 : | \G you would turn them on mainly for thorough checking. | ||
| 46 : | anton | 1.1 | 3 assertn ; immediate |
| 47 : | anton | 1.4 | : assert( ( -- ) \ gforth |
| 48 : | crook | 1.8 | \G Equivalent to @code{assert1(} |
| 49 : | anton | 1.1 | POSTPONE assert1( ; immediate |
| 50 : | |||
| 51 : | anton | 1.11 | : (end-assert) ( flag nfile nline -- ) \ gforth-internal |
| 52 : | rot if | ||
| 53 : | 2drop | ||
| 54 : | anton | 1.1 | else |
| 55 : | anton | 1.11 | .sourcepos ." : failed assertion" |
| 56 : | anton | 1.1 | true abort" assertion failed" \ !! or use a new throw code? |
| 57 : | then ; | ||
| 58 : | |||
| 59 : | anton | 1.4 | : ) ( -- ) \ gforth close-paren |
| 60 : | anton | 1.11 | \G End an assertion. |
| 61 : | compile-sourcepos POSTPONE (end-assert) ; immediate |
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