10 no warnings 'deprecated';
11 use vars qw($data $array $values $hash $errpat);
15 sub j { join(":",@_) }
19 # Hash insertion is currently unstable, in that
20 # %hash= %otherhash will not necessarily result in
21 # the same internal ordering of the data in the hash.
22 # For instance when keys collide the copy may not
23 # match the inserted order. So we declare one hash
24 # and then make all our copies from that, which should
25 # mean all the copies have the same internal structure.
28 BEGIN { # in BEGIN for "use constant ..." later
29 %base_hash= ( pi => 3.14, e => 2.72, i => -1 );
30 $array = [ qw(pi e i) ];
31 $values = [ 3.14, 2.72, -1 ];
32 $hash = { %base_hash } ;
34 hash => { %base_hash },
42 hash => { %base_hash },
43 array => [@{$main::array}]
47 sub hash { no overloading; $_[0]->{hash} };
48 sub array { no overloading; $_[0]->{array} };
50 package Foo::Overload::Array;
51 sub new { return bless [ qw/foo bar/ ], shift }
52 use overload '@{}' => sub { $main::array }, fallback => 1;
54 package Foo::Overload::Hash;
55 sub new { return bless { qw/foo bar/ }, shift }
56 use overload '%{}' => sub { $main::hash }, fallback => 1;
58 package Foo::Overload::Both;
59 sub new { return bless { qw/foo bar/ }, shift }
60 use overload '%{}' => sub { $main::hash },
61 '@{}' => sub { $main::array }, fallback => 1;
63 package Foo::Overload::HashOnArray;
64 sub new { return bless [ qw/foo bar/ ], shift }
65 use overload '%{}' => sub { $main::hash }, fallback => 1;
67 package Foo::Overload::ArrayOnHash;
68 sub new { return bless { qw/foo bar/ }, shift }
69 use overload '@{}' => sub { $main::array }, fallback => 1;
73 use constant CONST_HASH => { %base_hash };
74 use constant CONST_ARRAY => [ @$array ];
76 my %a_hash = %base_hash;
77 my @an_array = @$array;
78 sub hash_sub { return \%a_hash; }
79 sub array_sub { return \@an_array; }
83 my ($empty, $h_expect, $a_expect, @tmp, @tmp2, $k, $v);
87 keys $hash; pass('Void: keys $hash;');
88 keys $data->{hash}; pass('Void: keys $data->{hash};');
89 keys CONST_HASH; pass('Void: keys CONST_HASH;');
90 keys CONST_HASH(); pass('Void: keys CONST_HASH();');
91 keys hash_sub(); pass('Void: keys hash_sub();');
92 keys hash_sub; pass('Void: keys hash_sub;');
93 keys $obj->hash; pass('Void: keys $obj->hash;');
94 keys $array; pass('Void: keys $array;');
95 keys $data->{array}; pass('Void: keys $data->{array};');
96 keys CONST_ARRAY; pass('Void: keys CONST_ARRAY;');
97 keys CONST_ARRAY(); pass('Void: keys CONST_ARRAY();');
98 keys array_sub; pass('Void: keys array_sub;');
99 keys array_sub(); pass('Void: keys array_sub();');
100 keys $obj->array; pass('Void: keys $obj->array;');
104 is(keys $hash ,3, 'Scalar: keys $hash');
105 is(keys $data->{hash} ,3, 'Scalar: keys $data->{hash}');
106 is(keys CONST_HASH ,3, 'Scalar: keys CONST_HASH');
107 is(keys CONST_HASH() ,3, 'Scalar: keys CONST_HASH()');
108 is(keys hash_sub ,3, 'Scalar: keys hash_sub');
109 is(keys hash_sub() ,3, 'Scalar: keys hash_sub()');
110 is(keys $obj->hash ,3, 'Scalar: keys $obj->hash');
111 is(keys $array ,3, 'Scalar: keys $array');
112 is(keys $data->{array} ,3, 'Scalar: keys $data->{array}');
113 is(keys CONST_ARRAY ,3, 'Scalar: keys CONST_ARRAY');
114 is(keys CONST_ARRAY() ,3, 'Scalar: keys CONST_ARRAY()');
115 is(keys array_sub ,3, 'Scalar: keys array_sub');
116 is(keys array_sub() ,3, 'Scalar: keys array_sub()');
117 is(keys $obj->array ,3, 'Scalar: keys $obj->array');
121 $h_expect = j(keys %$hash);
122 $a_expect = j(keys @$array);
124 is(j(keys $hash) ,$h_expect, 'List: keys $hash');
125 is(j(keys $data->{hash}) ,$h_expect, 'List: keys $data->{hash}');
126 is(j(keys CONST_HASH) ,$h_expect, 'List: keys CONST_HASH');
127 is(j(keys CONST_HASH()) ,$h_expect, 'List: keys CONST_HASH()');
128 is(j(keys hash_sub) ,$h_expect, 'List: keys hash_sub');
129 is(j(keys hash_sub()) ,$h_expect, 'List: keys hash_sub()');
130 is(j(keys $obj->hash) ,$h_expect, 'List: keys $obj->hash');
131 is(j(keys $array) ,$a_expect, 'List: keys $array');
132 is(j(keys $data->{array}) ,$a_expect, 'List: keys $data->{array}');
133 is(j(keys CONST_ARRAY) ,$a_expect, 'List: keys CONST_ARRAY');
134 is(j(keys CONST_ARRAY()) ,$a_expect, 'List: keys CONST_ARRAY()');
135 is(j(keys array_sub) ,$a_expect, 'List: keys array_sub');
136 is(j(keys array_sub()) ,$a_expect, 'List: keys array_sub()');
137 is(j(keys $obj->array) ,$a_expect, 'List: keys $obj->array');
139 # Keys -- vivification
141 eval { keys $empty->{hash} };
143 'Vivify: $empty (after keys $empty->{hash}) is HASHREF');
144 ok(!defined $empty->{hash} , 'Vivify: $empty->{hash} is undef');
149 is scalar %_, '1/128', 'keys $hashref as lvalue';
150 eval 'keys \@_ = 65';
151 like $@, qr/Can't modify keys on reference in scalar assignment/,
152 'keys $arrayref as lvalue dies';
156 (?-x:Type of argument to keys on reference must be unblessed hashref or)
162 'Errors: keys undef throws error'
168 'Errors: keys $undef throws error'
171 is($empty, undef, 'keys $undef does not vivify $undef');
174 ok($@ =~ qr/Type of arg 1 to keys must be hash/,
175 'Errors: keys CONSTANT throws error'
180 'Errors: keys qr/foo/ throws error'
183 eval "keys $hash qw/fo bar/";
184 ok($@ =~ qr/syntax error/,
185 'Errors: keys $hash, @stuff throws error'
186 ) or print "# Got: $@";
190 values $hash; pass('Void: values $hash;');
191 values $data->{hash}; pass('Void: values $data->{hash};');
192 values CONST_HASH; pass('Void: values CONST_HASH;');
193 values CONST_HASH(); pass('Void: values CONST_HASH();');
194 values hash_sub(); pass('Void: values hash_sub();');
195 values hash_sub; pass('Void: values hash_sub;');
196 values $obj->hash; pass('Void: values $obj->hash;');
197 values $array; pass('Void: values $array;');
198 values $data->{array}; pass('Void: values $data->{array};');
199 values CONST_ARRAY; pass('Void: values CONST_ARRAY;');
200 values CONST_ARRAY(); pass('Void: values CONST_ARRAY();');
201 values array_sub; pass('Void: values array_sub;');
202 values array_sub(); pass('Void: values array_sub();');
203 values $obj->array; pass('Void: values $obj->array;');
207 is(values $hash ,3, 'Scalar: values $hash');
208 is(values $data->{hash} ,3, 'Scalar: values $data->{hash}');
209 is(values CONST_HASH ,3, 'Scalar: values CONST_HASH');
210 is(values CONST_HASH() ,3, 'Scalar: values CONST_HASH()');
211 is(values hash_sub ,3, 'Scalar: values hash_sub');
212 is(values hash_sub() ,3, 'Scalar: values hash_sub()');
213 is(values $obj->hash ,3, 'Scalar: values $obj->hash');
214 is(values $array ,3, 'Scalar: values $array');
215 is(values $data->{array} ,3, 'Scalar: values $data->{array}');
216 is(values CONST_ARRAY ,3, 'Scalar: values CONST_ARRAY');
217 is(values CONST_ARRAY() ,3, 'Scalar: values CONST_ARRAY()');
218 is(values array_sub ,3, 'Scalar: values array_sub');
219 is(values array_sub() ,3, 'Scalar: values array_sub()');
220 is(values $obj->array ,3, 'Scalar: values $obj->array');
224 $h_expect = j(values %$hash);
225 $a_expect = j(values @$array);
227 is(j(values $hash) ,$h_expect, 'List: values $hash');
228 is(j(values $data->{hash}) ,$h_expect, 'List: values $data->{hash}');
229 is(j(values CONST_HASH) ,$h_expect, 'List: values CONST_HASH');
230 is(j(values CONST_HASH()) ,$h_expect, 'List: values CONST_HASH()');
231 is(j(values hash_sub) ,$h_expect, 'List: values hash_sub');
232 is(j(values hash_sub()) ,$h_expect, 'List: values hash_sub()');
233 is(j(values $obj->hash) ,$h_expect, 'List: values $obj->hash');
234 is(j(values $array) ,$a_expect, 'List: values $array');
235 is(j(values $data->{array}) ,$a_expect, 'List: values $data->{array}');
236 is(j(values CONST_ARRAY) ,$a_expect, 'List: values CONST_ARRAY');
237 is(j(values CONST_ARRAY()) ,$a_expect, 'List: values CONST_ARRAY()');
238 is(j(values array_sub) ,$a_expect, 'List: values array_sub');
239 is(j(values array_sub()) ,$a_expect, 'List: values array_sub()');
240 is(j(values $obj->array) ,$a_expect, 'List: values $obj->array');
242 # Values -- vivification
244 eval { values $empty->{hash} };
246 'Vivify: $empty (after values $empty->{hash}) is HASHREF');
247 ok(!defined $empty->{hash} , 'Vivify: $empty->{hash} is undef');
251 (?-x:Type of argument to values on reference must be unblessed hashref or)
257 'Errors: values undef throws error'
261 eval q"values $empty";
263 'Errors: values $undef throws error'
266 is($empty, undef, 'values $undef does not vivify $undef');
269 ok($@ =~ qr/Type of arg 1 to values must be hash/,
270 'Errors: values CONSTANT throws error'
273 eval "values qr/foo/";
275 'Errors: values qr/foo/ throws error'
278 eval "values $hash qw/fo bar/";
279 ok($@ =~ qr/syntax error/,
280 'Errors: values $hash, @stuff throws error'
281 ) or print "# Got: $@";
285 each $hash; pass('Void: each $hash');
286 each $data->{hash}; pass('Void: each $data->{hash}');
287 each CONST_HASH; pass('Void: each CONST_HASH');
288 each CONST_HASH(); pass('Void: each CONST_HASH()');
289 each hash_sub(); pass('Void: each hash_sub()');
290 each hash_sub; pass('Void: each hash_sub');
291 each $obj->hash; pass('Void: each $obj->hash');
292 each $array; pass('Void: each $array');
293 each $data->{array}; pass('Void: each $data->{array}');
294 each CONST_ARRAY; pass('Void: each CONST_ARRAY');
295 each CONST_ARRAY(); pass('Void: each CONST_ARRAY()');
296 each array_sub; pass('Void: each array_sub');
297 each array_sub(); pass('Void: each array_sub()');
298 each $obj->array; pass('Void: each $obj->array');
319 @tmp=(); while(defined( $k = each $hash)) {push @tmp,$k}; is(j(@tmp),j(keys $hash), 'Scalar: each $hash');
320 @tmp=(); while(defined( $k = each $data->{hash})){push @tmp,$k}; is(j(@tmp),j(keys $data->{hash}), 'Scalar: each $data->{hash}');
321 @tmp=(); while(defined( $k = each CONST_HASH)){push @tmp,$k}; is(j(@tmp),j(keys CONST_HASH), 'Scalar: each CONST_HASH');
322 @tmp=(); while(defined( $k = each CONST_HASH())){push @tmp,$k}; is(j(@tmp),j(keys CONST_HASH()), 'Scalar: each CONST_HASH()');
323 @tmp=(); while(defined( $k = each hash_sub())){push @tmp,$k}; is(j(@tmp),j(keys hash_sub()), 'Scalar: each hash_sub()');
324 @tmp=(); while(defined( $k = each hash_sub)){push @tmp,$k}; is(j(@tmp),j(keys hash_sub), 'Scalar: each hash_sub');
325 @tmp=(); while(defined( $k = each $obj->hash)){push @tmp,$k}; is(j(@tmp),j(keys $obj->hash), 'Scalar: each $obj->hash');
326 @tmp=(); while(defined( $k = each $array)){push @tmp,$k}; is(j(@tmp),j(keys $array), 'Scalar: each $array');
327 @tmp=(); while(defined( $k = each $data->{array})){push @tmp,$k}; is(j(@tmp),j(keys $data->{array}), 'Scalar: each $data->{array}');
328 @tmp=(); while(defined( $k = each CONST_ARRAY)){push @tmp,$k}; is(j(@tmp),j(keys CONST_ARRAY), 'Scalar: each CONST_ARRAY');
329 @tmp=(); while(defined( $k = each CONST_ARRAY())){push @tmp,$k}; is(j(@tmp),j(keys CONST_ARRAY()), 'Scalar: each CONST_ARRAY()');
330 @tmp=(); while(defined( $k = each array_sub)){push @tmp,$k}; is(j(@tmp),j(keys array_sub), 'Scalar: each array_sub');
331 @tmp=(); while(defined( $k = each array_sub())){push @tmp,$k}; is(j(@tmp),j(keys array_sub()), 'Scalar: each array_sub()');
332 @tmp=(); while(defined( $k = each $obj->array)){push @tmp,$k}; is(j(@tmp),j(keys $obj->array), 'Scalar: each $obj->array');
336 @tmp=@tmp2=(); while(($k,$v) = each $hash) {push @tmp,$k; push @tmp2,$v}; is(j(@tmp,@tmp2),j(keys $hash, values $hash), 'List: each $hash');
337 @tmp=@tmp2=(); while(($k,$v) = each $data->{hash}){push @tmp,$k; push @tmp2,$v}; is(j(@tmp,@tmp2),j(keys $data->{hash}, values $data->{hash}), 'List: each $data->{hash}');
338 @tmp=@tmp2=(); while(($k,$v) = each CONST_HASH){push @tmp,$k; push @tmp2,$v}; is(j(@tmp,@tmp2),j(keys CONST_HASH, values CONST_HASH), 'List: each CONST_HASH');
339 @tmp=@tmp2=(); while(($k,$v) = each CONST_HASH()){push @tmp,$k; push @tmp2,$v}; is(j(@tmp,@tmp2),j(keys CONST_HASH(), values CONST_HASH()), 'List: each CONST_HASH()');
340 @tmp=@tmp2=(); while(($k,$v) = each hash_sub()){push @tmp,$k; push @tmp2,$v}; is(j(@tmp,@tmp2),j(keys hash_sub(), values hash_sub()), 'List: each hash_sub()');
341 @tmp=@tmp2=(); while(($k,$v) = each hash_sub){push @tmp,$k; push @tmp2,$v}; is(j(@tmp,@tmp2),j(keys hash_sub, values hash_sub), 'List: each hash_sub');
342 @tmp=@tmp2=(); while(($k,$v) = each $obj->hash){push @tmp,$k; push @tmp2,$v}; is(j(@tmp,@tmp2),j(keys $obj->hash, values $obj->hash), 'List: each $obj->hash');
343 @tmp=@tmp2=(); while(($k,$v) = each $array){push @tmp,$k; push @tmp2,$v}; is(j(@tmp,@tmp2),j(keys $array, values $array), 'List: each $array');
344 @tmp=@tmp2=(); while(($k,$v) = each $data->{array}){push @tmp,$k; push @tmp2,$v}; is(j(@tmp,@tmp2),j(keys $data->{array}, values $data->{array}), 'List: each $data->{array}');
345 @tmp=@tmp2=(); while(($k,$v) = each CONST_ARRAY){push @tmp,$k; push @tmp2,$v}; is(j(@tmp,@tmp2),j(keys CONST_ARRAY, values CONST_ARRAY), 'List: each CONST_ARRAY');
346 @tmp=@tmp2=(); while(($k,$v) = each CONST_ARRAY()){push @tmp,$k; push @tmp2,$v}; is(j(@tmp,@tmp2),j(keys CONST_ARRAY(), values CONST_ARRAY()), 'List: each CONST_ARRAY()');
347 @tmp=@tmp2=(); while(($k,$v) = each array_sub){push @tmp,$k; push @tmp2,$v}; is(j(@tmp,@tmp2),j(keys array_sub, values array_sub), 'List: each array_sub');
348 @tmp=@tmp2=(); while(($k,$v) = each array_sub()){push @tmp,$k; push @tmp2,$v}; is(j(@tmp,@tmp2),j(keys array_sub(), values array_sub()), 'List: each array_sub()');
349 @tmp=@tmp2=(); while(($k,$v) = each $obj->array){push @tmp,$k; push @tmp2,$v}; is(j(@tmp,@tmp2),j(keys $obj->array, values $obj->array), 'List: each $obj->array');
351 # Each -- vivification
353 eval { each $empty->{hash} };
355 'Vivify: $empty (after each $empty->{hash}) is HASHREF');
356 ok(!defined $empty->{hash} , 'Vivify: $empty->{hash} is undef');
360 (?-x:Type of argument to each on reference must be unblessed hashref or)
366 'Errors: each undef throws error'
372 'Errors: each $undef throws error'
375 is($empty, undef, 'each $undef does not vivify $undef');
378 ok($@ =~ qr/Type of arg 1 to each must be hash/,
379 'Errors: each CONSTANT throws error'
384 'Errors: each qr/foo/ throws error'
387 eval "each $hash qw/foo bar/";
388 ok($@ =~ qr/syntax error/,
389 'Errors: each $hash, @stuff throws error'
390 ) or print "# Got: $@";
393 my $over_a = Foo::Overload::Array->new;
394 my $over_h = Foo::Overload::Hash->new;
395 my $over_b = Foo::Overload::Both->new;
396 my $over_h_a = Foo::Overload::HashOnArray->new;
397 my $over_a_h = Foo::Overload::ArrayOnHash->new;
401 local $SIG{__WARN__} = sub { $warn = shift };
404 (?-x:Type of argument to keys on reference must be unblessed hashref or)
408 eval { keys $over_a };
409 like($@, $errpat, "Overload: array dereference");
410 is($warn, '', "no warning issued"); $warn = '';
412 eval { keys $over_h };
413 like($@, $errpat, "Overload: hash dereference");
414 is($warn, '', "no warning issued"); $warn = '';
416 eval { keys $over_b };
417 like($@, $errpat, "Overload: ambiguous dereference (both)");
418 is($warn, '', "no warning issued"); $warn = '';
420 eval { keys $over_h_a };
421 like($@, $errpat, "Overload: ambiguous dereference");
422 is($warn, '', "no warning issued"); $warn = '';
424 eval { keys $over_a_h };
425 like($@, $errpat, "Overload: ambiguous dereference");
426 is($warn, '', "no warning issued"); $warn = '';