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[p5sagit/p5-mst-13.2.git] / t / op / goto.t

diff --git a/t/op/goto.t b/t/op/goto.t
index 0b89921..a0b4d55 100755 (executable)
--- a/t/op/goto.t
+++ b/t/op/goto.t
@@ -1,8 +1,8 @@
 #!./perl
 
-# $RCSfile: goto.t,v $$Revision: 4.1 $$Date: 92/08/07 18:27:56 $
+# "This IS structured code.  It's just randomly structured."
 
-print "1..5\n";
+print "1..22\n";
 
 while ($?) {
     $foo = 1;
@@ -29,7 +29,10 @@ label4:
 print "#2\t:$foo: == 4\n";
 if ($foo == 4) {print "ok 2\n";} else {print "not ok 2\n";}
 
-$x = `./perl -e 'goto foo;' 2>&1`;
+$PERL = ($^O eq 'MSWin32') ? '.\perl' : ($^O eq 'MacOS') ? $^X : ($^O eq 'NetWare') ? 'perl' : './perl';
+$CMD = qq[$PERL -e "goto foo;" 2>&1 ];
+$x = `$CMD`;
+
 if ($x =~ /label/) {print "ok 3\n";} else {print "not ok 3\n";}
 
 sub foo {
@@ -43,11 +46,149 @@ bar:
 &foo;
 
 sub bar {
-    $x = 'exitcode';
-    eval "goto $x";    # Do not take this as exemplary code!!!
+    $x = 'bypass';
+    eval "goto $x";
 }
 
 &bar;
 exit;
-exitcode:
+
+FINALE:
+print "ok 13\n";
+
+# does goto LABEL handle block contexts correctly?
+
+my $cond = 1;
+for (1) {
+    if ($cond == 1) {
+       $cond = 0;
+       goto OTHER;
+    }
+    elsif ($cond == 0) {
+      OTHER:
+       $cond = 2;
+       print "ok 14\n";
+       goto THIRD;
+    }
+    else {
+      THIRD:
+       print "ok 15\n";
+    }
+}
+print "ok 16\n";
+
+# Does goto work correctly within a for(;;) loop?
+#  (BUG ID 20010309.004)
+
+for(my $i=0;!$i++;) {
+  my $x=1;
+  goto label;
+  label: print (defined $x?"ok ": "not ok ", "17\n")
+}
+
+# Does goto work correctly going *to* a for(;;) loop?
+#  (make sure it doesn't skip the initializer)
+
+my ($z, $y) = (0);
+FORL1: for($y="ok 18\n"; $z;) {print $y; goto TEST19}
+($y,$z) = ("not ok 18\n", 1);
+goto FORL1;
+
+# Even from within the loop?
+
+TEST19: $z = 0;
+FORL2: for($y="ok 19\n"; 1;) {
+  if ($z) {
+    print $y;
+    last;
+  }
+  ($y, $z) = ("not ok 19\n", 1);
+  goto FORL2;
+}
+
+# Does goto work correctly within a try block?
+#  (BUG ID 20000313.004)
+
+my $ok = 0;
+eval {
+  my $variable = 1;
+  goto LABEL20;
+  LABEL20: $ok = 1 if $variable;
+};
+print ($ok&&!$@ ? "ok 20\n" : "not ok 20\n");
+
+# And within an eval-string?
+
+
+$ok = 0;
+eval q{
+  my $variable = 1;
+  goto LABEL21;
+  LABEL21: $ok = 1 if $variable;
+};
+print ($ok&&!$@ ? "ok 21\n" : "not ok 21\n");
+
+
+# Test that goto works in nested eval-string
+$ok = 0;
+{eval q{
+  eval q{
+    goto LABEL22;
+  };
+  $ok = 0;
+  last;
+
+  LABEL22: $ok = 1;
+};
+$ok = 0 if $@;
+}
+print ($ok ? "ok 22\n" : "not ok 22\n");
+
+exit;
+
+bypass:
 print "ok 5\n";
+
+# Test autoloading mechanism.
+
+sub two {
+    ($pack, $file, $line) = caller;    # Should indicate original call stats.
+    print "@_ $pack $file $line" eq "1 2 3 main $FILE $LINE"
+       ? "ok 7\n"
+       : "not ok 7\n";
+}
+
+sub one {
+    eval <<'END';
+    sub one { print "ok 6\n"; goto &two; print "not ok 6\n"; }
+END
+    goto &one;
+}
+
+$FILE = __FILE__;
+$LINE = __LINE__ + 1;
+&one(1,2,3);
+
+$wherever = NOWHERE;
+eval { goto $wherever };
+print $@ =~ /Can't find label NOWHERE/ ? "ok 8\n" : "not ok 8\n";
+
+# see if a modified @_ propagates
+{
+  package Foo;
+  sub DESTROY  { my $s = shift; print "ok $s->[0]\n"; }
+  sub show     { print "# @_\nnot ok $_[0][0]\n" if @_ != 5; }
+  sub start    { push @_, 1, "foo", {}; goto &show; }
+  for (9..11)  { start(bless([$_]), 'bar'); }
+}
+
+sub auto {
+    goto &loadit;
+}
+
+sub AUTOLOAD { print @_ }
+
+auto("ok 12\n");
+
+$wherever = FINALE;
+goto $wherever;