version 1.2, 1995/01/12 18:37:48
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version 1.18, 2012/02/13 22:26:50
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\ assertions |
\ assertions |
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\ !! factor out line number printing, share with debugging.fs |
\ Copyright (C) 1995,1996,1997,1999,2002,2003,2007,2010 Free Software Foundation, Inc. |
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variable assert-level \ all assertions above this level are turned off |
\ This file is part of Gforth. |
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\ Gforth is free software; you can redistribute it and/or |
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\ modify it under the terms of the GNU General Public License |
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\ as published by the Free Software Foundation, either version 3 |
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\ of the License, or (at your option) any later version. |
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\ This program is distributed in the hope that it will be useful, |
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\ but WITHOUT ANY WARRANTY; without even the implied warranty of |
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\ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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\ GNU General Public License for more details. |
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\ You should have received a copy of the GNU General Public License |
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\ along with this program. If not, see http://www.gnu.org/licenses/. |
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require source.fs |
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variable assert-level ( -- a-addr ) \ gforth |
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\G All assertions above this level are turned off. |
1 assert-level ! |
1 assert-level ! |
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: assertn ( n -- ) |
: (end-assert) ( flag nfile nline -- ) \ gforth-internal |
\ this is internal (it is not immediate) |
rot if |
assert-level @ > |
2drop |
if |
else |
POSTPONE ( |
.sourcepos ." : failed assertion" |
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true abort" assertion failed" \ !! or use a new throw code? |
then ; |
then ; |
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: assert0( ( -- ) |
: assert) ( -- ) |
\ important assertions that should always be turned on |
compile-sourcepos POSTPONE (end-assert) ; |
0 assertn ; immediate |
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: assert1( ( -- ) |
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\ normal assertions; turned on by default |
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1 assertn ; immediate |
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: assert2( ( -- ) |
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\ debugging assertions |
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2 assertn ; immediate |
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: assert3( ( -- ) |
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\ slow assertions that you may not want to turn on in normal debugging; |
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\ you would turn them on mainly for thorough checking |
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3 assertn ; immediate |
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: assert( ( -- ) |
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\ equivalent to assert1( |
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POSTPONE assert1( ; immediate |
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: (endassert) ( flag -- ) |
6 Constant assert-canary |
\ three inline arguments |
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: assertn ( n -- ) \ gforth assert-n |
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\ this is internal (it is not immediate) |
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assert-level @ > |
if |
if |
r> 3 cells + >r EXIT |
POSTPONE ( |
else |
else |
r> |
['] assert) assert-canary |
dup 2@ type ." :" cell+ cell+ |
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@ 0 .r ." : failed assertion" |
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true abort" assertion failed" \ !! or use a new throw code? |
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then ; |
then ; |
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: ) ( -- ) |
: ) ( -- ) \ gforth close-paren |
POSTPONE (endassert) loadfilename 2@ 2, loadline @ , ; immediate |
\G End an assertion. Generic end, can be used for other similar purposes |
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assert-canary <> abort" unmatched assertion" |
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execute ; immediate |
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: assert0( ( -- ) \ gforth assert-zero |
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\G Important assertions that should always be turned on. |
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0 assertn ; immediate compile-only |
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: assert1( ( -- ) \ gforth assert-one |
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\G Normal assertions; turned on by default. |
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1 assertn ; immediate compile-only |
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: assert2( ( -- ) \ gforth assert-two |
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\G Debugging assertions. |
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2 assertn ; immediate compile-only |
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: assert3( ( -- ) \ gforth assert-three |
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\G Slow assertions that you may not want to turn on in normal debugging; |
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\G you would turn them on mainly for thorough checking. |
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3 assertn ; immediate compile-only |
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: assert( ( -- ) \ gforth |
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\G Equivalent to @code{assert1(} |
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POSTPONE assert1( ; immediate compile-only |
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