1#!./perl 2 3# Tests the scoping of $^H and %^H 4 5BEGIN { 6 @INC = qw(. ../lib); 7 chdir 't'; 8} 9 10BEGIN { print "1..31\n"; } 11BEGIN { 12 print "not " if exists $^H{foo}; 13 print "ok 1 - \$^H{foo} doesn't exist initially\n"; 14 if (${^OPEN}) { 15 print "not " unless $^H & 0x00020000; 16 print "ok 2 - \$^H contains HINT_LOCALIZE_HH initially with ${^OPEN}\n"; 17 } else { 18 print "not " if $^H & 0x00020000; 19 print "ok 2 - \$^H doesn't contain HINT_LOCALIZE_HH initially\n"; 20 } 21} 22{ 23 # simulate a pragma -- don't forget HINT_LOCALIZE_HH 24 BEGIN { $^H |= 0x04020000; $^H{foo} = "a"; } 25 BEGIN { 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"; 30 } 31 { 32 BEGIN { $^H |= 0x00020000; $^H{foo} = "b"; } 33 BEGIN { 34 print "not " if $^H{foo} ne "b"; 35 print "ok 5 - \$^H{foo} is now 'b'\n"; 36 } 37 } 38 BEGIN { 39 print "not " if $^H{foo} ne "a"; 40 print "ok 6 - \$^H{foo} restored to 'a'\n"; 41 } 42 # The pragma settings disappear after compilation 43 # (test at CHECK-time and at run-time) 44 CHECK { 45 print "not " if exists $^H{foo}; 46 print "ok 9 - \$^H{foo} doesn't exist when compilation complete\n"; 47 if (${^OPEN}) { 48 print "not " unless $^H & 0x00020000; 49 print "ok 10 - \$^H contains HINT_LOCALIZE_HH when compilation complete with ${^OPEN}\n"; 50 } else { 51 print "not " if $^H & 0x00020000; 52 print "ok 10 - \$^H doesn't contain HINT_LOCALIZE_HH when compilation complete\n"; 53 } 54 } 55 print "not " if exists $^H{foo}; 56 print "ok 11 - \$^H{foo} doesn't exist at runtime\n"; 57 if (${^OPEN}) { 58 print "not " unless $^H & 0x00020000; 59 print "ok 12 - \$^H contains HINT_LOCALIZE_HH at run-time with ${^OPEN}\n"; 60 } else { 61 print "not " if $^H & 0x00020000; 62 print "ok 12 - \$^H doesn't contain HINT_LOCALIZE_HH at run-time\n"; 63 } 64 # op_entereval should keep the pragmas it was compiled with 65 eval q* 66 BEGIN { 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"; 71 } 72 *; 73} 74BEGIN { 75 print "not " if exists $^H{foo}; 76 print "ok 7 - \$^H{foo} doesn't exist while finishing compilation\n"; 77 if (${^OPEN}) { 78 print "not " unless $^H & 0x00020000; 79 print "ok 8 - \$^H contains HINT_LOCALIZE_HH while finishing compilation with ${^OPEN}\n"; 80 } else { 81 print "not " if $^H & 0x00020000; 82 print "ok 8 - \$^H doesn't contain HINT_LOCALIZE_HH while finishing compilation\n"; 83 } 84} 85 86{ 87 BEGIN{$^H{x}=1}; 88 for my $tno (15..16) { 89 eval q( 90 BEGIN { 91 print $^H{x}==1 && !$^H{y} ? "ok $tno\n" : "not ok $tno\n"; 92 } 93 $^H{y} = 1; 94 ); 95 if ($@) { 96 (my $str = $@)=~s/^/# /gm; 97 print "not ok $tno\n$str\n"; 98 } 99 } 100} 101 102{ 103 BEGIN { $^H |= 0x04000000; $^H{foo} = "z"; } 104 105 our($ri0, $rf0); BEGIN { $ri0 = $^H; $rf0 = $^H{foo}; } 106 print +($ri0 & 0x04000000 ? "" : "not "), "ok 17 - \$^H correct before require\n"; 107 print +($rf0 eq "z" ? "" : "not "), "ok 18 - \$^H{foo} correct before require\n"; 108 109 our($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"; 113 114 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"; 117} 118 119# [perl #73174] 120 121{ 122 my $res; 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 BEGIN { $res .= '-' . ($^H{73174} // "")} 127 $res .= '-' . ($^H{73174} // ""); 128 print $res eq "foo-foo-" ? "" : "not ", 129 "ok 23 - \$^H{foo} correct after /unicode/i (res=$res)\n"; 130} 131 132# [perl #106282] Crash when tying %^H 133# Tying %^H should not result in a crash when the hint hash is cloned. 134# Hints should also be copied properly to inner scopes. See also 135# [rt.cpan.org #73402]. 136eval q` 137 # Do something naughty enough, and you get your module mentioned in the 138 # test suite. :-) 139 package namespace::clean::_TieHintHash; 140 141 sub TIEHASH { bless[] } 142 sub STORE { $_[0][0]{$_[1]} = $_[2] } 143 sub FETCH { $_[0][0]{$_[1]} } 144 sub FIRSTKEY { my $a = scalar keys %{$_[0][0]}; each %{$_[0][0]} } 145 sub NEXTKEY { each %{$_[0][0]} } 146 147 package main; 148 149 BEGIN { 150 $^H{foo} = "bar"; # activate localisation magic 151 tie( %^H, 'namespace::clean::_TieHintHash' ); # sabotage %^H 152 $^H{foo} = "bar"; # create an element in the tied hash 153 } 154 { # clone the tied hint hash on scope entry 155 BEGIN { 156 print "not " x ($^H{foo} ne 'bar'), 157 "ok 24 - tied hint hash is copied to inner scope\n"; 158 %^H = (); 159 tie( %^H, 'namespace::clean::_TieHintHash' ); 160 $^H{foo} = "bar"; 161 } 162 { 163 BEGIN{ 164 print 165 "not " x ($^H{foo} ne 'bar'), 166 "ok 25 - tied empty hint hash is copied to inner scope\n" 167 } 168 } 169 1; 170 } 171 1; 172` or warn $@; 173print "ok 26 - no crash when cloning a tied hint hash\n"; 174 175{ 176 my $w; 177 local $SIG{__WARN__} = sub { $w = shift }; 178 eval q` 179 package namespace::clean::_TieHintHasi; 180 181 sub TIEHASH { bless[] } 182 sub STORE { $_[0][0]{$_[1]} = $_[2] } 183 sub FETCH { $_[0][0]{$_[1]} } 184 sub FIRSTKEY { my $a = scalar keys %{$_[0][0]}; each %{$_[0][0]} } 185 # Intentionally commented out: 186 # sub NEXTKEY { each %{$_[0][0]} } 187 188 package main; 189 190 BEGIN { 191 $^H{foo} = "bar"; # activate localisation magic 192 tie( %^H, 'namespace::clean::_TieHintHasi' ); # sabotage %^H 193 $^H{foo} = "bar"; # create an element in the tied hash 194 } 195 { ; } # clone the tied hint hash 196 `; 197 print "not " if $w; 198 print "ok 27 - double-freeing explosive tied hints hash\n"; 199 print "# got: $w" if $w; 200} 201 202# Setting ${^WARNING_HINTS} to its own value should not change things. 203{ 204 my $w; 205 local $SIG{__WARN__} = sub { $w++ }; 206 BEGIN { 207 # should have no effect: 208 my $x = ${^WARNING_BITS}; 209 ${^WARNING_BITS} = $x; 210 } 211 { 212 local $^W = 1; 213 () = 1 + undef; 214 } 215 print "# ", $w//'no', " warnings\nnot " unless $w == 1; 216 print "ok 28 - ", 217 "setting \${^WARNING_BITS} to its own value has no effect\n"; 218} 219 220# [perl #112326] 221# this code could cause a crash, due to PL_hints continuing to point to th 222# hints hash currently being freed 223 224{ 225 package Foo; 226 my @h = qw(a 1 b 2); 227 BEGIN { 228 $^H{FOO} = bless {}; 229 } 230 sub DESTROY { 231 @h = %^H; 232 delete $INC{strict}; require strict; # boom! 233 } 234 my $h = join ':', %h; 235 # this isn't the main point of the test; the main point is that 236 # it doesn't crash! 237 print "not " if $h ne ''; 238 print "ok 29 - #112326\n"; 239} 240 241 242# [perl #112444] 243# A destructor called while %^H is freed should not be able to stop %^H 244# from being magical (due to *^H{HASH} being undef). 245{ 246 BEGIN { 247 # Make sure %^H is clear and not localised, to begin with 248 %^H = (); 249 $^H = 0; 250 } 251 DESTROY { %^H } 252 { 253 { 254 BEGIN { 255 $^H{foom} = bless[]; 256 } 257 } # scope exit triggers destructor, which autovivifies a non- 258 # magical %^H 259 BEGIN { 260 # Here we have the %^H created by DESTROY, which is 261 # not localised 262 $^H{112444} = 'baz'; 263 } 264 } # %^H leaks on scope exit 265 BEGIN { @keez = keys %^H } 266} 267print "not " if @keez; 268print "ok 30 - %^H does not leak when autovivified in destructor\n"; 269print "# keys are: @keez\n" if @keez; 270 271 272# Add new tests above this require, in case it fails. 273require './test.pl'; 274 275# bug #27040: hints hash was being double-freed 276my $result = runperl( 277 prog => '$^H |= 0x20000; eval q{BEGIN { $^H |= 0x20000 }}', 278 stderr => 1 279); 280print "not " if length $result; 281print "ok 31 - double-freeing hints hash\n"; 282print "# got: $result\n" if length $result; 283 284__END__ 285# Add new tests above require 'test.pl' 286