3 # Tests the scoping of $^H and %^H
9 BEGIN { print "1..31\n"; }
11 print "not " if exists $^H{foo};
12 print "ok 1 - \$^H{foo} doesn't exist initially\n";
14 print "not " unless $^H & 0x00020000;
15 print "ok 2 - \$^H contains HINT_LOCALIZE_HH initially with ${^OPEN}\n";
17 print "not " if $^H & 0x00020000;
18 print "ok 2 - \$^H doesn't contain HINT_LOCALIZE_HH initially\n";
22 # simulate a pragma -- don't forget HINT_LOCALIZE_HH
23 BEGIN { $^H |= 0x04020000; $^H{foo} = "a"; }
25 print "not " if $^H{foo} ne "a";
26 print "ok 3 - \$^H{foo} is now 'a'\n";
27 print "not " unless $^H & 0x00020000;
28 print "ok 4 - \$^H contains HINT_LOCALIZE_HH while compiling\n";
31 BEGIN { $^H |= 0x00020000; $^H{foo} = "b"; }
33 print "not " if $^H{foo} ne "b";
34 print "ok 5 - \$^H{foo} is now 'b'\n";
38 print "not " if $^H{foo} ne "a";
39 print "ok 6 - \$^H{foo} restored to 'a'\n";
41 # The pragma settings disappear after compilation
42 # (test at CHECK-time and at run-time)
44 print "not " if exists $^H{foo};
45 print "ok 9 - \$^H{foo} doesn't exist when compilation complete\n";
47 print "not " unless $^H & 0x00020000;
48 print "ok 10 - \$^H contains HINT_LOCALIZE_HH when compilation complete with ${^OPEN}\n";
50 print "not " if $^H & 0x00020000;
51 print "ok 10 - \$^H doesn't contain HINT_LOCALIZE_HH when compilation complete\n";
54 print "not " if exists $^H{foo};
55 print "ok 11 - \$^H{foo} doesn't exist at runtime\n";
57 print "not " unless $^H & 0x00020000;
58 print "ok 12 - \$^H contains HINT_LOCALIZE_HH at run-time with ${^OPEN}\n";
60 print "not " if $^H & 0x00020000;
61 print "ok 12 - \$^H doesn't contain HINT_LOCALIZE_HH at run-time\n";
63 # op_entereval should keep the pragmas it was compiled with
66 print "not " if $^H{foo} ne "a";
67 print "ok 13 - \$^H{foo} is 'a' at eval-\"\" time\n";
68 print "not " unless $^H & 0x00020000;
69 print "ok 14 - \$^H contains HINT_LOCALIZE_HH at eval\"\"-time\n";
74 print "not " if exists $^H{foo};
75 print "ok 7 - \$^H{foo} doesn't exist while finishing compilation\n";
77 print "not " unless $^H & 0x00020000;
78 print "ok 8 - \$^H contains HINT_LOCALIZE_HH while finishing compilation with ${^OPEN}\n";
80 print "not " if $^H & 0x00020000;
81 print "ok 8 - \$^H doesn't contain HINT_LOCALIZE_HH while finishing compilation\n";
87 for my $tno (15..16) {
90 print $^H{x}==1 && !$^H{y} ? "ok $tno\n" : "not ok $tno\n";
95 (my $str = $@)=~s/^/# /gm;
96 print "not ok $tno\n$str\n";
102 BEGIN { $^H |= 0x04000000; $^H{foo} = "z"; }
104 our($ri0, $rf0); BEGIN { $ri0 = $^H; $rf0 = $^H{foo}; }
105 print +($ri0 & 0x04000000 ? "" : "not "), "ok 17 - \$^H correct before require\n";
106 print +($rf0 eq "z" ? "" : "not "), "ok 18 - \$^H{foo} correct before require\n";
108 our($ra1, $ri1, $rf1, $rfe1);
109 BEGIN { require "comp/hints.aux"; }
110 print +(!($ri1 & 0x04000000) ? "" : "not "), "ok 19 - \$^H cleared for require\n";
111 print +(!defined($rf1) && !$rfe1 ? "" : "not "), "ok 20 - \$^H{foo} cleared for require\n";
113 our($ri2, $rf2); BEGIN { $ri2 = $^H; $rf2 = $^H{foo}; }
114 print +($ri2 & 0x04000000 ? "" : "not "), "ok 21 - \$^H correct after require\n";
115 print +($rf2 eq "z" ? "" : "not "), "ok 22 - \$^H{foo} correct after require\n";
122 BEGIN { $^H{73174} = "foo" }
123 BEGIN { $res = ($^H{73174} // "") }
124 "" =~ /\x{100}/i; # forces loading of utf8.pm, which used to reset %^H
125 BEGIN { $res .= '-' . ($^H{73174} // "")}
126 $res .= '-' . ($^H{73174} // "");
127 print $res eq "foo-foo-" ? "" : "not ",
128 "ok 23 - \$^H{foo} correct after /unicode/i (res=$res)\n";
131 # [perl #106282] Crash when tying %^H
132 # Tying %^H should not result in a crash when the hint hash is cloned.
133 # Hints should also be copied properly to inner scopes. See also
134 # [rt.cpan.org #73402].
136 # Do something naughty enough, and you get your module mentioned in the
138 package namespace::clean::_TieHintHash;
140 sub TIEHASH { bless[] }
141 sub STORE { $_[0][0]{$_[1]} = $_[2] }
142 sub FETCH { $_[0][0]{$_[1]} }
143 sub FIRSTKEY { my $a = scalar keys %{$_[0][0]}; each %{$_[0][0]} }
144 sub NEXTKEY { each %{$_[0][0]} }
149 $^H{foo} = "bar"; # activate localisation magic
150 tie( %^H, 'namespace::clean::_TieHintHash' ); # sabotage %^H
151 $^H{foo} = "bar"; # create an element in the tied hash
153 { # clone the tied hint hash on scope entry
155 print "not " x ($^H{foo} ne 'bar'),
156 "ok 24 - tied hint hash is copied to inner scope\n";
158 tie( %^H, 'namespace::clean::_TieHintHash' );
164 "not " x ($^H{foo} ne 'bar'),
165 "ok 25 - tied empty hint hash is copied to inner scope\n"
172 print "ok 26 - no crash when cloning a tied hint hash\n";
176 local $SIG{__WARN__} = sub { $w = shift };
178 package namespace::clean::_TieHintHasi;
180 sub TIEHASH { bless[] }
181 sub STORE { $_[0][0]{$_[1]} = $_[2] }
182 sub FETCH { $_[0][0]{$_[1]} }
183 sub FIRSTKEY { my $a = scalar keys %{$_[0][0]}; each %{$_[0][0]} }
184 # Intentionally commented out:
185 # sub NEXTKEY { each %{$_[0][0]} }
190 $^H{foo} = "bar"; # activate localisation magic
191 tie( %^H, 'namespace::clean::_TieHintHasi' ); # sabotage %^H
192 $^H{foo} = "bar"; # create an element in the tied hash
194 { ; } # clone the tied hint hash
197 print "ok 27 - double-freeing explosive tied hints hash\n";
198 print "# got: $w" if $w;
201 # Setting ${^WARNING_HINTS} to its own value should not change things.
204 local $SIG{__WARN__} = sub { $w++ };
206 # should have no effect:
207 my $x = ${^WARNING_BITS};
208 ${^WARNING_BITS} = $x;
214 print "# ", $w//'no', " warnings\nnot " unless $w == 1;
216 "setting \${^WARNING_BITS} to its own value has no effect\n";
220 # this code could cause a crash, due to PL_hints continuing to point to th
221 # hints hash currently being freed
231 delete $INC{strict}; require strict; # boom!
233 my $h = join ':', %h;
234 # this isn't the main point of the test; the main point is that
236 print "not " if $h ne '';
237 print "ok 29 - #112326\n";
242 # A destructor called while %^H is freed should not be able to stop %^H
243 # from being magical (due to *^H{HASH} being undef).
246 # Make sure %^H is clear and not localised, to begin with
256 } # scope exit triggers destructor, which autovivifies a non-
259 # Here we have the %^H created by DESTROY, which is
263 } # %^H leaks on scope exit
264 BEGIN { @keez = keys %^H }
266 print "not " if @keez;
267 print "ok 30 - %^H does not leak when autovivified in destructor\n";
268 print "# keys are: @keez\n" if @keez;
271 # Add new tests above this require, in case it fails.
274 # bug #27040: hints hash was being double-freed
275 my $result = runperl(
276 prog => '$^H |= 0x20000; eval q{BEGIN { $^H |= 0x20000 }}',
279 print "not " if length $result;
280 print "ok 31 - double-freeing hints hash\n";
281 print "# got: $result\n" if length $result;
284 # Add new tests above require 'test.pl'