| \ assertions |
\ assertions |
| |
|
| \ Copyright (C) 1995 Free Software Foundation, Inc. |
\ Copyright (C) 1995,1996,1997,1999,2002,2003 Free Software Foundation, Inc. |
| |
|
| \ This file is part of Gforth. |
\ This file is part of Gforth. |
| |
|
| |
|
| \ You should have received a copy of the GNU General Public License |
\ You should have received a copy of the GNU General Public License |
| \ along with this program; if not, write to the Free Software |
\ along with this program; if not, write to the Free Software |
| \ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
\ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
| |
|
| require source.fs |
require source.fs |
| |
|
| variable assert-level ( -- a-addr ) \ gforth |
variable assert-level ( -- a-addr ) \ gforth |
| \G all assertions above this level are turned off |
\G All assertions above this level are turned off. |
| 1 assert-level ! |
1 assert-level ! |
| |
|
| : assertn ( n -- ) \ gforth assert-n |
: assertn ( n -- ) \ gforth assert-n |
| then ; |
then ; |
| |
|
| : assert0( ( -- ) \ gforth assert-zero |
: assert0( ( -- ) \ gforth assert-zero |
| \G important assertions that should always be turned on |
\G Important assertions that should always be turned on. |
| 0 assertn ; immediate |
0 assertn ; immediate |
| : assert1( ( -- ) \ gforth assert-one |
: assert1( ( -- ) \ gforth assert-one |
| \G normal assertions; turned on by default |
\G Normal assertions; turned on by default. |
| 1 assertn ; immediate |
1 assertn ; immediate |
| : assert2( ( -- ) \ gforth assert-two |
: assert2( ( -- ) \ gforth assert-two |
| \G debugging assertions |
\G Debugging assertions. |
| 2 assertn ; immediate |
2 assertn ; immediate |
| : assert3( ( -- ) \ gforth assert-three |
: assert3( ( -- ) \ gforth assert-three |
| \G 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; |
| \G 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( ( -- ) \ gforth |
: assert( ( -- ) \ gforth |
| \G equivalent to assert1( |
\G Equivalent to @code{assert1(} |
| POSTPONE assert1( ; immediate |
POSTPONE assert1( ; immediate |
| |
|
| : (endassert) ( flag -- ) \ gforth-internal |
: (end-assert) ( flag nfile nline -- ) \ gforth-internal |
| \ inline argument sourcepos |
rot if |
| if |
2drop |
| r> sourcepos %size + >r EXIT |
|
| else |
else |
| r> print-sourcepos ." : failed assertion" |
.sourcepos ." : 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 |
: ) ( -- ) \ gforth close-paren |
| \G end an assertion |
\G End an assertion. |
| POSTPONE (endassert) sourcepos, ; immediate |
compile-sourcepos POSTPONE (end-assert) ; immediate |
