3 # Tests the scoping of $^H and %^H
6 @INC = qw(. ../lib ../ext/re);
10 BEGIN { print "1..31\n"; }
12 print "not " if exists $^H{foo};
13 print "ok 1 - \$^H{foo} doesn't exist initially\n";
15 print "not " unless $^H & 0x00020000;
16 print "ok 2 - \$^H contains HINT_LOCALIZE_HH initially with ${^OPEN}\n";
18 print "not " if $^H & 0x00020000;
19 print "ok 2 - \$^H doesn't contain HINT_LOCALIZE_HH initially\n";
23 # simulate a pragma -- don't forget HINT_LOCALIZE_HH
24 BEGIN { $^H |= 0x04020000; $^H{foo} = "a"; }
26 print "not " if $^H{foo} ne "a";
27 print "ok 3 - \$^H{foo} is now 'a'\n";
28 print "not " unless $^H & 0x00020000;
29 print "ok 4 - \$^H contains HINT_LOCALIZE_HH while compiling\n";
32 BEGIN { $^H |= 0x00020000; $^H{foo} = "b"; }
34 print "not " if $^H{foo} ne "b";
35 print "ok 5 - \$^H{foo} is now 'b'\n";
39 print "not " if $^H{foo} ne "a";
40 print "ok 6 - \$^H{foo} restored to 'a'\n";
42 # The pragma settings disappear after compilation
43 # (test at CHECK-time and at run-time)
45 print "not " if exists $^H{foo};
46 print "ok 9 - \$^H{foo} doesn't exist when compilation complete\n";
48 print "not " unless $^H & 0x00020000;
49 print "ok 10 - \$^H contains HINT_LOCALIZE_HH when compilation complete with ${^OPEN}\n";
51 print "not " if $^H & 0x00020000;
52 print "ok 10 - \$^H doesn't contain HINT_LOCALIZE_HH when compilation complete\n";
55 print "not " if exists $^H{foo};
56 print "ok 11 - \$^H{foo} doesn't exist at runtime\n";
58 print "not " unless $^H & 0x00020000;
59 print "ok 12 - \$^H contains HINT_LOCALIZE_HH at run-time with ${^OPEN}\n";
61 print "not " if $^H & 0x00020000;
62 print "ok 12 - \$^H doesn't contain HINT_LOCALIZE_HH at run-time\n";
64 # op_entereval should keep the pragmas it was compiled with
67 print "not " if $^H{foo} ne "a";
68 print "ok 13 - \$^H{foo} is 'a' at eval-\"\" time\n";
69 print "not " unless $^H & 0x00020000;
70 print "ok 14 - \$^H contains HINT_LOCALIZE_HH at eval\"\"-time\n";
75 print "not " if exists $^H{foo};
76 print "ok 7 - \$^H{foo} doesn't exist while finishing compilation\n";
78 print "not " unless $^H & 0x00020000;
79 print "ok 8 - \$^H contains HINT_LOCALIZE_HH while finishing compilation with ${^OPEN}\n";
81 print "not " if $^H & 0x00020000;
82 print "ok 8 - \$^H doesn't contain HINT_LOCALIZE_HH while finishing compilation\n";
88 for my $tno (15..16) {
91 print $^H{x}==1 && !$^H{y} ? "ok $tno\n" : "not ok $tno\n";
96 (my $str = $@)=~s/^/# /gm;
97 print "not ok $tno\n$str\n";
103 BEGIN { $^H |= 0x04000000; $^H{foo} = "z"; }
105 our($ri0, $rf0); BEGIN { $ri0 = $^H; $rf0 = $^H{foo}; }
106 print +($ri0 & 0x04000000 ? "" : "not "), "ok 17 - \$^H correct before require\n";
107 print +($rf0 eq "z" ? "" : "not "), "ok 18 - \$^H{foo} correct before require\n";
109 our($ra1, $ri1, $rf1, $rfe1);
110 BEGIN { require "comp/hints.aux"; }
111 print +(!($ri1 & 0x04000000) ? "" : "not "), "ok 19 - \$^H cleared for require\n";
112 print +(!defined($rf1) && !$rfe1 ? "" : "not "), "ok 20 - \$^H{foo} cleared for require\n";
114 our($ri2, $rf2); BEGIN { $ri2 = $^H; $rf2 = $^H{foo}; }
115 print +($ri2 & 0x04000000 ? "" : "not "), "ok 21 - \$^H correct after require\n";
116 print +($rf2 eq "z" ? "" : "not "), "ok 22 - \$^H{foo} correct after require\n";
123 BEGIN { $^H{73174} = "foo" }
124 BEGIN { $res = ($^H{73174} // "") }
125 # /x{100}/i forces loading of utf8.pm, which used to reset %^H
126 eval '"" =~ /\x{100}/i; 1'
127 # Allow miniperl to fail this regexp compilation (effectively skip
128 # the test) in case tables have not been build, but require real
130 or defined &DynaLoader::boot_DynaLoader and die;
131 BEGIN { $res .= '-' . ($^H{73174} // "")}
132 $res .= '-' . ($^H{73174} // "");
133 print $res eq "foo-foo-" ? "" : "not ",
134 "ok 23 - \$^H{foo} correct after /unicode/i (res=$res)\n";
137 # [perl #106282] Crash when tying %^H
138 # Tying %^H should not result in a crash when the hint hash is cloned.
139 # Hints should also be copied properly to inner scopes. See also
140 # [rt.cpan.org #73402].
142 # Do something naughty enough, and you get your module mentioned in the
144 package namespace::clean::_TieHintHash;
146 sub TIEHASH { bless[] }
147 sub STORE { $_[0][0]{$_[1]} = $_[2] }
148 sub FETCH { $_[0][0]{$_[1]} }
149 sub FIRSTKEY { my $a = scalar keys %{$_[0][0]}; each %{$_[0][0]} }
150 sub NEXTKEY { each %{$_[0][0]} }
155 $^H{foo} = "bar"; # activate localisation magic
156 tie( %^H, 'namespace::clean::_TieHintHash' ); # sabotage %^H
157 $^H{foo} = "bar"; # create an element in the tied hash
159 { # clone the tied hint hash on scope entry
161 print "not " x ($^H{foo} ne 'bar'),
162 "ok 24 - tied hint hash is copied to inner scope\n";
164 tie( %^H, 'namespace::clean::_TieHintHash' );
170 "not " x ($^H{foo} ne 'bar'),
171 "ok 25 - tied empty hint hash is copied to inner scope\n"
178 print "ok 26 - no crash when cloning a tied hint hash\n";
182 local $SIG{__WARN__} = sub { $w = shift };
184 package namespace::clean::_TieHintHasi;
186 sub TIEHASH { bless[] }
187 sub STORE { $_[0][0]{$_[1]} = $_[2] }
188 sub FETCH { $_[0][0]{$_[1]} }
189 sub FIRSTKEY { my $a = scalar keys %{$_[0][0]}; each %{$_[0][0]} }
190 # Intentionally commented out:
191 # sub NEXTKEY { each %{$_[0][0]} }
196 $^H{foo} = "bar"; # activate localisation magic
197 tie( %^H, 'namespace::clean::_TieHintHasi' ); # sabotage %^H
198 $^H{foo} = "bar"; # create an element in the tied hash
200 { ; } # clone the tied hint hash
203 print "ok 27 - double-freeing explosive tied hints hash\n";
204 print "# got: $w" if $w;
207 # Setting ${^WARNING_HINTS} to its own value should not change things.
210 local $SIG{__WARN__} = sub { $w++ };
212 # should have no effect:
213 my $x = ${^WARNING_BITS};
214 ${^WARNING_BITS} = $x;
220 print "# ", $w//'no', " warnings\nnot " unless $w == 1;
222 "setting \${^WARNING_BITS} to its own value has no effect\n";
226 # this code could cause a crash, due to PL_hints continuing to point to th
227 # hints hash currently being freed
237 delete $INC{strict}; require strict; # boom!
239 my $h = join ':', %h;
240 # this isn't the main point of the test; the main point is that
242 print "not " if $h ne '';
243 print "ok 29 - #112326\n";
248 # A destructor called while %^H is freed should not be able to stop %^H
249 # from being magical (due to *^H{HASH} being undef).
252 # Make sure %^H is clear and not localised, to begin with
262 } # scope exit triggers destructor, which autovivifies a non-
265 # Here we have the %^H created by DESTROY, which is
269 } # %^H leaks on scope exit
270 BEGIN { @keez = keys %^H }
272 print "not " if @keez;
273 print "ok 30 - %^H does not leak when autovivified in destructor\n";
274 print "# keys are: @keez\n" if @keez;
277 # Add new tests above this require, in case it fails.
280 # bug #27040: hints hash was being double-freed
281 my $result = runperl(
282 prog => '$^H |= 0x20000; eval q{BEGIN { $^H |= 0x20000 }}',
285 print "not " if length $result;
286 print "ok 31 - double-freeing hints hash\n";
287 print "# got: $result\n" if length $result;
290 # Add new tests above require 'test.pl'