1#!./perl 2 3print "1..75\n"; 4 5sub foo { 6 local($a, $b) = @_; 7 local($c, $d); 8 $c = "ok 3\n"; 9 $d = "ok 4\n"; 10 { local($a,$c) = ("ok 9\n", "ok 10\n"); ($x, $y) = ($a, $c); } 11 print $a, $b; 12 $c . $d; 13} 14 15$a = "ok 5\n"; 16$b = "ok 6\n"; 17$c = "ok 7\n"; 18$d = "ok 8\n"; 19 20print &foo("ok 1\n","ok 2\n"); 21 22print $a,$b,$c,$d,$x,$y; 23 24# same thing, only with arrays and associative arrays 25 26sub foo2 { 27 local($a, @b) = @_; 28 local(@c, %d); 29 @c = "ok 13\n"; 30 $d{''} = "ok 14\n"; 31 { local($a,@c) = ("ok 19\n", "ok 20\n"); ($x, $y) = ($a, @c); } 32 print $a, @b; 33 $c[0] . $d{''}; 34} 35 36$a = "ok 15\n"; 37@b = "ok 16\n"; 38@c = "ok 17\n"; 39$d{''} = "ok 18\n"; 40 41print &foo2("ok 11\n","ok 12\n"); 42 43print $a,@b,@c,%d,$x,$y; 44 45eval 'local($$e)'; 46print +($@ =~ /Can't localize through a reference/) ? "" : "not ", "ok 21\n"; 47 48eval '$e = []; local(@$e)'; 49print +($@ =~ /Can't localize through a reference/) ? "" : "not ", "ok 22\n"; 50 51eval '$e = {}; local(%$e)'; 52print +($@ =~ /Can't localize through a reference/) ? "" : "not ", "ok 23\n"; 53 54# Array and hash elements 55 56@a = ('a', 'b', 'c'); 57{ 58 local($a[1]) = 'foo'; 59 local($a[2]) = $a[2]; 60 print +($a[1] eq 'foo') ? "" : "not ", "ok 24\n"; 61 print +($a[2] eq 'c') ? "" : "not ", "ok 25\n"; 62 undef @a; 63} 64print +($a[1] eq 'b') ? "" : "not ", "ok 26\n"; 65print +($a[2] eq 'c') ? "" : "not ", "ok 27\n"; 66print +(!defined $a[0]) ? "" : "not ", "ok 28\n"; 67 68@a = ('a', 'b', 'c'); 69{ 70 local($a[1]) = "X"; 71 shift @a; 72} 73print +($a[0].$a[1] eq "Xb") ? "" : "not ", "ok 29\n"; 74 75%h = ('a' => 1, 'b' => 2, 'c' => 3); 76{ 77 local($h{'a'}) = 'foo'; 78 local($h{'b'}) = $h{'b'}; 79 print +($h{'a'} eq 'foo') ? "" : "not ", "ok 30\n"; 80 print +($h{'b'} == 2) ? "" : "not ", "ok 31\n"; 81 local($h{'c'}); 82 delete $h{'c'}; 83} 84print +($h{'a'} == 1) ? "" : "not ", "ok 32\n"; 85print +($h{'b'} == 2) ? "" : "not ", "ok 33\n"; 86print +($h{'c'} == 3) ? "" : "not ", "ok 34\n"; 87 88# check for scope leakage 89$a = 'outer'; 90if (1) { local $a = 'inner' } 91print +($a eq 'outer') ? "" : "not ", "ok 35\n"; 92 93# see if localization works when scope unwinds 94local $m = 5; 95eval { 96 for $m (6) { 97 local $m = 7; 98 die "bye"; 99 } 100}; 101print $m == 5 ? "" : "not ", "ok 36\n"; 102 103# see if localization works on tied arrays 104{ 105 package TA; 106 sub TIEARRAY { bless [], $_[0] } 107 sub STORE { print "# STORE [@_]\n"; $_[0]->[$_[1]] = $_[2] } 108 sub FETCH { my $v = $_[0]->[$_[1]]; print "# FETCH [@_=$v]\n"; $v } 109 sub CLEAR { print "# CLEAR [@_]\n"; @{$_[0]} = (); } 110 sub FETCHSIZE { scalar(@{$_[0]}) } 111 sub SHIFT { shift (@{$_[0]}) } 112 sub EXTEND {} 113} 114 115tie @a, 'TA'; 116@a = ('a', 'b', 'c'); 117{ 118 local($a[1]) = 'foo'; 119 local($a[2]) = $a[2]; 120 print +($a[1] eq 'foo') ? "" : "not ", "ok 37\n"; 121 print +($a[2] eq 'c') ? "" : "not ", "ok 38\n"; 122 @a = (); 123} 124print +($a[1] eq 'b') ? "" : "not ", "ok 39\n"; 125print +($a[2] eq 'c') ? "" : "not ", "ok 40\n"; 126print +(!defined $a[0]) ? "" : "not ", "ok 41\n"; 127 128{ 129 package TH; 130 sub TIEHASH { bless {}, $_[0] } 131 sub STORE { print "# STORE [@_]\n"; $_[0]->{$_[1]} = $_[2] } 132 sub FETCH { my $v = $_[0]->{$_[1]}; print "# FETCH [@_=$v]\n"; $v } 133 sub EXISTS { print "# EXISTS [@_]\n"; exists $_[0]->{$_[1]}; } 134 sub DELETE { print "# DELETE [@_]\n"; delete $_[0]->{$_[1]}; } 135 sub CLEAR { print "# CLEAR [@_]\n"; %{$_[0]} = (); } 136} 137 138# see if localization works on tied hashes 139tie %h, 'TH'; 140%h = ('a' => 1, 'b' => 2, 'c' => 3); 141 142{ 143 local($h{'a'}) = 'foo'; 144 local($h{'b'}) = $h{'b'}; 145 local($h{'y'}); 146 local($h{'z'}) = 33; 147 print +($h{'a'} eq 'foo') ? "" : "not ", "ok 42\n"; 148 print +($h{'b'} == 2) ? "" : "not ", "ok 43\n"; 149 local($h{'c'}); 150 delete $h{'c'}; 151} 152print +($h{'a'} == 1) ? "" : "not ", "ok 44\n"; 153print +($h{'b'} == 2) ? "" : "not ", "ok 45\n"; 154print +($h{'c'} == 3) ? "" : "not ", "ok 46\n"; 155 156@a = ('a', 'b', 'c'); 157{ 158 local($a[1]) = "X"; 159 shift @a; 160} 161print +($a[0].$a[1] eq "Xb") ? "" : "not ", "ok 47\n"; 162 163# now try the same for %SIG 164 165$SIG{TERM} = 'foo'; 166$SIG{INT} = \&foo; 167$SIG{__WARN__} = $SIG{INT}; 168{ 169 local($SIG{TERM}) = $SIG{TERM}; 170 local($SIG{INT}) = $SIG{INT}; 171 local($SIG{__WARN__}) = $SIG{__WARN__}; 172 print +($SIG{TERM} eq 'main::foo') ? "" : "not ", "ok 48\n"; 173 print +($SIG{INT} eq \&foo) ? "" : "not ", "ok 49\n"; 174 print +($SIG{__WARN__} eq \&foo) ? "" : "not ", "ok 50\n"; 175 local($SIG{INT}); 176 delete $SIG{__WARN__}; 177} 178print +($SIG{TERM} eq 'main::foo') ? "" : "not ", "ok 51\n"; 179print +($SIG{INT} eq \&foo) ? "" : "not ", "ok 52\n"; 180print +($SIG{__WARN__} eq \&foo) ? "" : "not ", "ok 53\n"; 181 182# and for %ENV 183 184$ENV{_X_} = 'a'; 185$ENV{_Y_} = 'b'; 186$ENV{_Z_} = 'c'; 187{ 188 local($ENV{_A_}); 189 local($ENV{_B_}) = 'foo'; 190 local($ENV{_X_}) = 'foo'; 191 local($ENV{_Y_}) = $ENV{_Y_}; 192 print +($ENV{_X_} eq 'foo') ? "" : "not ", "ok 54\n"; 193 print +($ENV{_Y_} eq 'b') ? "" : "not ", "ok 55\n"; 194 local($ENV{_Z_}); 195 delete $ENV{_Z_}; 196} 197print +($ENV{_X_} eq 'a') ? "" : "not ", "ok 56\n"; 198print +($ENV{_Y_} eq 'b') ? "" : "not ", "ok 57\n"; 199print +($ENV{_Z_} eq 'c') ? "" : "not ", "ok 58\n"; 200 201# does implicit localization in foreach skip magic? 202 203$_ = "ok 59,ok 60,"; 204my $iter = 0; 205while (/(o.+?),/gc) { 206 print "$1\n"; 207 foreach (1..1) { $iter++ } 208 if ($iter > 2) { print "not ok 60\n"; last; } 209} 210 211{ 212 package UnderScore; 213 sub TIESCALAR { bless \my $self, shift } 214 sub FETCH { die "read \$_ forbidden" } 215 sub STORE { die "write \$_ forbidden" } 216 tie $_, __PACKAGE__; 217 my $t = 61; 218 my @tests = ( 219 "Nesting" => sub { print '#'; for (1..3) { print } 220 print "\n" }, 1, 221 "Reading" => sub { print }, 0, 222 "Matching" => sub { $x = /badness/ }, 0, 223 "Concat" => sub { $_ .= "a" }, 0, 224 "Chop" => sub { chop }, 0, 225 "Filetest" => sub { -x }, 0, 226 "Assignment" => sub { $_ = "Bad" }, 0, 227 # XXX whether next one should fail is debatable 228 "Local \$_" => sub { local $_ = 'ok?'; print }, 0, 229 "for local" => sub { for("#ok?\n"){ print } }, 1, 230 ); 231 while ( ($name, $code, $ok) = splice(@tests, 0, 3) ) { 232 print "# Testing $name\n"; 233 eval { &$code }; 234 print(($ok xor $@) ? "ok $t\n" : "not ok $t\n"); 235 ++$t; 236 } 237 untie $_; 238} 239 240{ 241 # BUG 20001205.22 242 my %x; 243 $x{a} = 1; 244 { local $x{b} = 1; } 245 print "not " if exists $x{b}; 246 print "ok 70\n"; 247 { local @x{c,d,e}; } 248 print "not " if exists $x{c}; 249 print "ok 71\n"; 250} 251 252# these tests should be physically located after tests 46 and 58, 253# but are here instead to avoid renumbering everything. 254 255# local() should preserve the existenceness of tied hashes and %ENV 256print "not " if exists $h{'y'}; print "ok 72\n"; 257print "not " if exists $h{'z'}; print "ok 73\n"; 258print "not " if exists $ENV{_A_}; print "ok 74\n"; 259print "not " if exists $ENV{_B_}; print "ok 75\n"; 260