| 1 | #!./perl |
| 2 | |
| 3 | # $RCSfile: eval.t,v $$Revision: 4.1 $$Date: 92/08/07 18:27:48 $ |
| 4 | |
| 5 | print "1..16\n"; |
| 6 | |
| 7 | eval 'print "ok 1\n";'; |
| 8 | |
| 9 | if ($@ eq '') {print "ok 2\n";} else {print "not ok 2\n";} |
| 10 | |
| 11 | eval "\$foo\n = # this is a comment\n'ok 3';"; |
| 12 | print $foo,"\n"; |
| 13 | |
| 14 | eval "\$foo\n = # this is a comment\n'ok 4\n';"; |
| 15 | print $foo; |
| 16 | |
| 17 | print eval ' |
| 18 | $foo =;'; # this tests for a call through yyerror() |
| 19 | if ($@ =~ /line 2/) {print "ok 5\n";} else {print "not ok 5\n";} |
| 20 | |
| 21 | print eval '$foo = /'; # this tests for a call through fatal() |
| 22 | if ($@ =~ /Search/) {print "ok 6\n";} else {print "not ok 6\n";} |
| 23 | |
| 24 | print eval '"ok 7\n";'; |
| 25 | |
| 26 | # calculate a factorial with recursive evals |
| 27 | |
| 28 | $foo = 5; |
| 29 | $fact = 'if ($foo <= 1) {1;} else {push(@x,$foo--); (eval $fact) * pop(@x);}'; |
| 30 | $ans = eval $fact; |
| 31 | if ($ans == 120) {print "ok 8\n";} else {print "not ok 8\n";} |
| 32 | |
| 33 | $foo = 5; |
| 34 | $fact = 'local($foo)=$foo; $foo <= 1 ? 1 : $foo-- * (eval $fact);'; |
| 35 | $ans = eval $fact; |
| 36 | if ($ans == 120) {print "ok 9\n";} else {print "not ok 9 $ans\n";} |
| 37 | |
| 38 | open(try,'>Op.eval'); |
| 39 | print try 'print "ok 10\n"; unlink "Op.eval";',"\n"; |
| 40 | close try; |
| 41 | |
| 42 | do 'Op.eval'; print $@; |
| 43 | |
| 44 | # Test the singlequoted eval optimizer |
| 45 | |
| 46 | $i = 11; |
| 47 | for (1..3) { |
| 48 | eval 'print "ok ", $i++, "\n"'; |
| 49 | } |
| 50 | |
| 51 | eval { |
| 52 | print "ok 14\n"; |
| 53 | die "ok 16\n"; |
| 54 | 1; |
| 55 | } || print "ok 15\n$@"; |
| 56 | |
| 57 | |