Initial import of Perl5. The king is dead; long live the king!

1 files changed, 81 insertions, 0 deletions

diff --git a/contrib/perl5/t/op/eval.t b/contrib/perl5/t/op/eval.t
new file mode 100755
index 0000000..9368281
--- /dev/null
+++ b/contrib/perl5/t/op/eval.t
@@ -0,0 +1,81 @@
+#!./perl
+
+# $RCSfile: eval.t,v $$Revision: 4.1 $$Date: 92/08/07 18:27:48 $
+
+print "1..23\n";
+
+eval 'print "ok 1\n";';
+
+if ($@ eq '') {print "ok 2\n";} else {print "not ok 2\n";}
+
+eval "\$foo\n    = # this is a comment\n'ok 3';";
+print $foo,"\n";
+
+eval "\$foo\n    = # this is a comment\n'ok 4\n';";
+print $foo;
+
+print eval '
+$foo =;';		# this tests for a call through yyerror()
+if ($@ =~ /line 2/) {print "ok 5\n";} else {print "not ok 5\n";}
+
+print eval '$foo = /';	# this tests for a call through fatal()
+if ($@ =~ /Search/) {print "ok 6\n";} else {print "not ok 6\n";}
+
+print eval '"ok 7\n";';
+
+# calculate a factorial with recursive evals
+
+$foo = 5;
+$fact = 'if ($foo <= 1) {1;} else {push(@x,$foo--); (eval $fact) * pop(@x);}';
+$ans = eval $fact;
+if ($ans == 120) {print "ok 8\n";} else {print "not ok 8\n";}
+
+$foo = 5;
+$fact = 'local($foo)=$foo; $foo <= 1 ? 1 : $foo-- * (eval $fact);';
+$ans = eval $fact;
+if ($ans == 120) {print "ok 9\n";} else {print "not ok 9 $ans\n";}
+
+open(try,'>Op.eval');
+print try 'print "ok 10\n"; unlink "Op.eval";',"\n";
+close try;
+
+do 'Op.eval'; print $@;
+
+# Test the singlequoted eval optimizer
+
+$i = 11;
+for (1..3) {
+    eval 'print "ok ", $i++, "\n"';
+}
+
+eval {
+    print "ok 14\n";
+    die "ok 16\n";
+    1;
+} || print "ok 15\n$@";
+
+# check whether eval EXPR determines value of EXPR correctly
+
+{
+  my @a = qw(a b c d);
+  my @b = eval @a;
+  print "@b" eq '4' ? "ok 17\n" : "not ok 17\n";
+  print $@ ? "not ok 18\n" : "ok 18\n";
+
+  my $a = q[defined(wantarray) ? (wantarray ? ($b='A') : ($b='S')) : ($b='V')];
+  my $b;
+  @a = eval $a;
+  print "@a" eq 'A' ? "ok 19\n" : "# $b\nnot ok 19\n";
+  print   $b eq 'A' ? "ok 20\n" : "# $b\nnot ok 20\n";
+  $_ = eval $a;
+  print   $b eq 'S' ? "ok 21\n" : "# $b\nnot ok 21\n";
+  eval $a;
+  print   $b eq 'V' ? "ok 22\n" : "# $b\nnot ok 22\n";
+
+  $b = 'wrong';
+  $x = sub {
+     my $b = "right";
+     print eval('"$b"') eq $b ? "ok 23\n" : "not ok 23\n";
+  };
+  &$x();
+}