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Diffstat (limited to 'contrib/perl5/lib/assert.pl')
-rw-r--r-- | contrib/perl5/lib/assert.pl | 55 |
1 files changed, 0 insertions, 55 deletions
diff --git a/contrib/perl5/lib/assert.pl b/contrib/perl5/lib/assert.pl deleted file mode 100644 index 4c9ebf2..0000000 --- a/contrib/perl5/lib/assert.pl +++ /dev/null @@ -1,55 +0,0 @@ -# assert.pl -# tchrist@convex.com (Tom Christiansen) -# -# Usage: -# -# &assert('@x > @y'); -# &assert('$var > 10', $var, $othervar, @various_info); -# -# That is, if the first expression evals false, we blow up. The -# rest of the args, if any, are nice to know because they will -# be printed out by &panic, which is just the stack-backtrace -# routine shamelessly borrowed from the perl debugger. - -sub assert { - &panic("ASSERTION BOTCHED: $_[$[]",$@) unless eval $_[$[]; -} - -sub panic { - package DB; - - select(STDERR); - - print "\npanic: @_\n"; - - exit 1 if $] <= 4.003; # caller broken - - # stack traceback gratefully borrowed from perl debugger - - local $_; - my $i; - my ($p,$f,$l,$s,$h,$a,@a,@frames); - for ($i = 0; ($p,$f,$l,$s,$h,$w) = caller($i); $i++) { - @a = @args; - for (@a) { - if (/^StB\000/ && length($_) == length($_main{'_main'})) { - $_ = sprintf("%s",$_); - } - else { - s/'/\\'/g; - s/([^\0]*)/'$1'/ unless /^-?[\d.]+$/; - s/([\200-\377])/sprintf("M-%c",ord($1)&0177)/eg; - s/([\0-\37\177])/sprintf("^%c",ord($1)^64)/eg; - } - } - $w = $w ? '@ = ' : '$ = '; - $a = $h ? '(' . join(', ', @a) . ')' : ''; - push(@frames, "$w&$s$a from file $f line $l\n"); - } - for ($i=0; $i <= $#frames; $i++) { - print $frames[$i]; - } - exit 1; -} - -1; |