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60ccc62f A |
1 | #!./perl |
2 | # Tests counting number of FETCHes. | |
3 | # | |
b04496fe | 4 | # See Bugs #76814 and #87708. |
60ccc62f A |
5 | |
6 | BEGIN { | |
7 | chdir 't' if -d 't'; | |
8 | @INC = '../lib'; | |
9 | require './test.pl'; | |
5668452f | 10 | plan (tests => 298); |
60ccc62f A |
11 | } |
12 | ||
13 | use strict; | |
14 | use warnings; | |
15 | ||
60ccc62f A |
16 | my $count = 0; |
17 | ||
b04496fe FC |
18 | # Usage: |
19 | # tie $var, "main", $val; # FETCH returns $val | |
20 | # tie $var, "main", $val1, $val2; # FETCH returns the values in order, | |
21 | # # one at a time, repeating the last | |
22 | # # when the list is exhausted. | |
23 | sub TIESCALAR {my $pack = shift; bless [@_], $pack;} | |
24 | sub FETCH {$count ++; @{$_ [0]} == 1 ? ${$_ [0]}[0] : shift @{$_ [0]}} | |
9c9a2500 | 25 | sub STORE { unshift @{$_[0]}, $_[1] } |
60ccc62f A |
26 | |
27 | ||
28 | sub check_count { | |
29 | my $op = shift; | |
b04496fe | 30 | my $expected = shift() // 1; |
5e0b4493 | 31 | local $::Level = $::Level + 1; |
b04496fe FC |
32 | is $count, $expected, |
33 | "FETCH called " . ( | |
34 | $expected == 1 ? "just once" : | |
35 | $expected == 2 ? "twice" : | |
36 | "$count times" | |
37 | ) . " using '$op'"; | |
60ccc62f A |
38 | $count = 0; |
39 | } | |
40 | ||
41 | my ($dummy, @dummy); | |
42 | ||
43 | tie my $var => 'main', 1; | |
44 | ||
45 | # Assignment. | |
46 | $dummy = $var ; check_count "="; | |
93564729 | 47 | *dummy = $var ; check_count '*glob = $tied'; |
60ccc62f A |
48 | |
49 | # Unary +/- | |
50 | $dummy = +$var ; check_count "unary +"; | |
51 | $dummy = -$var ; check_count "unary -"; | |
52 | ||
53 | # Basic arithmetic and string operators. | |
54 | $dummy = $var + 1 ; check_count '+'; | |
55 | $dummy = $var - 1 ; check_count '-'; | |
56 | $dummy = $var / 1 ; check_count '/'; | |
57 | $dummy = $var * 1 ; check_count '*'; | |
58 | $dummy = $var % 1 ; check_count '%'; | |
59 | $dummy = $var ** 1 ; check_count '**'; | |
60 | $dummy = $var << 1 ; check_count '<<'; | |
61 | $dummy = $var >> 1 ; check_count '>>'; | |
62 | $dummy = $var x 1 ; check_count 'x'; | |
63 | @dummy = ($var) x 1 ; check_count 'x'; | |
64 | $dummy = $var . 1 ; check_count '.'; | |
f52e41ad FC |
65 | @dummy = $var .. 1 ; check_count '$tied..1'; |
66 | @dummy = 1 .. $var; check_count '1..$tied'; | |
67 | tie my $v42 => 'main', "z"; | |
68 | @dummy = $v42 .. "a"; check_count '$tied.."a"'; | |
69 | @dummy = "a" .. $v42; check_count '"a"..$tied'; | |
60ccc62f A |
70 | |
71 | # Pre/post in/decrement | |
72 | $var ++ ; check_count 'post ++'; | |
73 | $var -- ; check_count 'post --'; | |
74 | ++ $var ; check_count 'pre ++'; | |
75 | -- $var ; check_count 'pre --'; | |
76 | ||
77 | # Numeric comparison | |
78 | $dummy = $var < 1 ; check_count '<'; | |
79 | $dummy = $var <= 1 ; check_count '<='; | |
80 | $dummy = $var == 1 ; check_count '=='; | |
81 | $dummy = $var >= 1 ; check_count '>='; | |
82 | $dummy = $var > 1 ; check_count '>'; | |
83 | $dummy = $var != 1 ; check_count '!='; | |
84 | $dummy = $var <=> 1 ; check_count '<=>'; | |
85 | ||
86 | # String comparison | |
078504b2 FC |
87 | $dummy = $var lt 1 ; check_count 'lt'; |
88 | $dummy = $var le 1 ; check_count 'le'; | |
89 | $dummy = $var eq 1 ; check_count 'eq'; | |
90 | $dummy = $var ge 1 ; check_count 'ge'; | |
91 | $dummy = $var gt 1 ; check_count 'gt'; | |
92 | $dummy = $var ne 1 ; check_count 'ne'; | |
93 | $dummy = $var cmp 1 ; check_count 'cmp'; | |
60ccc62f A |
94 | |
95 | # Bitwise operators | |
96 | $dummy = $var & 1 ; check_count '&'; | |
97 | $dummy = $var ^ 1 ; check_count '^'; | |
98 | $dummy = $var | 1 ; check_count '|'; | |
99 | $dummy = ~$var ; check_count '~'; | |
100 | ||
101 | # Logical operators | |
06c841cf | 102 | $dummy = !$var ; check_count '!'; |
1c3caf3f FC |
103 | tie my $v_1, "main", 0; |
104 | $dummy = $v_1 || 1 ; check_count '||'; | |
105 | $dummy = ($v_1 or 1); check_count 'or'; | |
60ccc62f A |
106 | $dummy = $var && 1 ; check_count '&&'; |
107 | $dummy = ($var and 1); check_count 'and'; | |
108 | $dummy = ($var xor 1); check_count 'xor'; | |
109 | $dummy = $var ? 1 : 1 ; check_count '?:'; | |
110 | ||
111 | # Overloadable functions | |
112 | $dummy = sin $var ; check_count 'sin'; | |
113 | $dummy = cos $var ; check_count 'cos'; | |
114 | $dummy = exp $var ; check_count 'exp'; | |
115 | $dummy = abs $var ; check_count 'abs'; | |
116 | $dummy = log $var ; check_count 'log'; | |
117 | $dummy = sqrt $var ; check_count 'sqrt'; | |
118 | $dummy = int $var ; check_count 'int'; | |
119 | $dummy = atan2 $var, 1 ; check_count 'atan2'; | |
120 | ||
121 | # Readline/glob | |
122 | tie my $var0, "main", \*DATA; | |
123 | $dummy = <$var0> ; check_count '<readline>'; | |
5668452f FC |
124 | $var = \1; |
125 | $var .= <DATA> ; check_count '$tiedref .= <rcatline>'; | |
126 | $var = "tied"; | |
127 | $var .= <DATA> ; check_count '$tiedstr .= <rcatline>'; | |
128 | $var = *foo; | |
129 | $var .= <DATA> ; check_count '$tiedglob .= <rcatline>'; | |
60ccc62f A |
130 | $dummy = <${var}> ; check_count '<glob>'; |
131 | ||
132 | # File operators | |
094a3eec FC |
133 | for (split //, 'rwxoRWXOezsfdpSbctugkTBMAC') { |
134 | no warnings 'unopened'; | |
135 | $dummy = eval "-$_ \$var"; check_count "-$_"; | |
136 | # Make $var hold a glob: | |
137 | $var = *dummy; $dummy = $var; $count = 0; | |
138 | $dummy = eval "-$_ \$var"; check_count "-$_ \$tied_glob"; | |
026624ed | 139 | next if /[guk]/; |
094a3eec | 140 | $var = *dummy; $dummy = $var; $count = 0; |
026624ed FC |
141 | eval "\$dummy = -$_ \\\$var"; |
142 | check_count "-$_ \\\$tied_glob"; | |
094a3eec | 143 | } |
60ccc62f | 144 | $dummy = -l $var ; check_count '-l'; |
60ccc62f A |
145 | |
146 | # Matching | |
147 | $_ = "foo"; | |
148 | $dummy = $var =~ m/ / ; check_count 'm//'; | |
149 | $dummy = $var =~ s/ //; check_count 's///'; | |
150 | $dummy = $var ~~ 1 ; check_count '~~'; | |
9138d6ca | 151 | $dummy = $var =~ y/ //; check_count 'y///'; |
b4cc4d79 FC |
152 | $var = \1; |
153 | $dummy = $var =~y/ /-/; check_count '$ref =~ y///'; | |
a9984b10 FC |
154 | /$var/ ; check_count 'm/pattern/'; |
155 | /$var foo/ ; check_count 'm/$tied foo/'; | |
156 | s/$var// ; check_count 's/pattern//'; | |
157 | s/$var foo// ; check_count 's/$tied foo//'; | |
60ccc62f A |
158 | s/./$var/ ; check_count 's//replacement/'; |
159 | ||
160 | # Dereferencing | |
161 | tie my $var1 => 'main', \1; | |
162 | $dummy = $$var1 ; check_count '${}'; | |
163 | tie my $var2 => 'main', []; | |
164 | $dummy = @$var2 ; check_count '@{}'; | |
d2d95e13 | 165 | $dummy = shift $var2 ; check_count 'shift arrayref'; |
60ccc62f A |
166 | tie my $var3 => 'main', {}; |
167 | $dummy = %$var3 ; check_count '%{}'; | |
075980ed | 168 | $dummy = keys $var3 ; check_count 'keys hashref'; |
60ccc62f A |
169 | { |
170 | no strict 'refs'; | |
171 | tie my $var4 => 'main', **; | |
172 | $dummy = *$var4 ; check_count '*{}'; | |
173 | } | |
174 | ||
175 | tie my $var5 => 'main', sub {1}; | |
176 | $dummy = &$var5 ; check_count '&{}'; | |
177 | ||
7ffa7e75 FC |
178 | { |
179 | no strict 'refs'; | |
180 | tie my $var1 => 'main', 1; | |
181 | $dummy = $$var1 ; check_count 'symbolic ${}'; | |
182 | $dummy = @$var1 ; check_count 'symbolic @{}'; | |
183 | $dummy = %$var1 ; check_count 'symbolic %{}'; | |
184 | $dummy = *$var1 ; check_count 'symbolic *{}'; | |
185 | local *1 = sub{}; | |
186 | $dummy = &$var1 ; check_count 'symbolic &{}'; | |
ed996e63 | 187 | |
c00274d3 | 188 | # This test will not be a complete test if *988 has been created |
ed996e63 FC |
189 | # already. If this dies, change it to use another built-in variable. |
190 | # In 5.10-14, rv2gv calls get-magic more times for built-in vars, which | |
191 | # is why we need the test this way. | |
c00274d3 FC |
192 | if (exists $::{988}) { |
193 | die "*988 already exists. Please adjust this test" | |
ed996e63 | 194 | } |
c00274d3 | 195 | tie my $var6 => main => 988; |
ed996e63 FC |
196 | no warnings; |
197 | readdir $var6 ; check_count 'symbolic readdir'; | |
ad6acfc4 FC |
198 | if (exists $::{973}) { # Need a different variable here |
199 | die "*973 already exists. Please adjust this test" | |
200 | } | |
201 | tie my $var7 => main => 973; | |
202 | defined $$var7 ; check_count 'symbolic defined ${}'; | |
7ffa7e75 | 203 | } |
b04496fe | 204 | |
da6b625f FC |
205 | tie my $var8 => 'main', 'main'; |
206 | sub bolgy {} | |
207 | $var8->bolgy ; check_count '->method'; | |
33d4ef81 | 208 | { |
f8ccc5c6 | 209 | no warnings 'once'; |
33d4ef81 FC |
210 | () = *swibble; |
211 | # This must be the name of an existing glob to trigger the maximum | |
212 | # number of fetches in 5.14: | |
213 | tie my $var9 => 'main', 'swibble'; | |
214 | no strict 'refs'; | |
215 | use constant glumscrin => 'shreggleboughet'; | |
216 | *$var9 = \&{"glumscrin"}; check_count '*$tied = \&{"name of const"}'; | |
217 | } | |
da6b625f | 218 | |
d06f995a | 219 | # Functions that operate on filenames or filehandles |
5e0adc2d | 220 | for ([chdir=>''],[chmod=>'0,'],[chown=>'0,0,'],[utime=>'0,0,'], |
8d9d90d5 FC |
221 | [truncate=>'',',0'],[stat=>''],[lstat=>''],[open=>'my $fh,"<&",'], |
222 | ['()=sort'=>'',' 1,2,3']) { | |
5e0adc2d | 223 | my($op,$args,$postargs) = @$_; $postargs //= ''; |
d06f995a FC |
224 | # This line makes $var8 hold a glob: |
225 | $var8 = *dummy; $dummy = $var8; $count = 0; | |
5e0adc2d FC |
226 | eval "$op $args \$var8 $postargs"; |
227 | check_count "$op $args\$tied_glob$postargs"; | |
d06f995a | 228 | $var8 = *dummy; $dummy = $var8; $count = 0; |
8d9d90d5 FC |
229 | my $ref = \$var8; |
230 | eval "$op $args \$ref $postargs"; | |
5e0adc2d | 231 | check_count "$op $args\\\$tied_glob$postargs"; |
d06f995a | 232 | } |
93564729 | 233 | |
9d6d5a79 FC |
234 | { |
235 | no warnings; | |
236 | $var = *foo; | |
237 | $dummy = select $var, undef, undef, 0 | |
238 | ; check_count 'select $tied_glob, ...'; | |
239 | $var = \1; | |
240 | $dummy = select $var, undef, undef, 0 | |
241 | ; check_count 'select $tied_ref, ...'; | |
242 | $var = undef; | |
243 | $dummy = select $var, undef, undef, 0 | |
244 | ; check_count 'select $tied_undef, ...'; | |
245 | } | |
246 | ||
b04496fe FC |
247 | ############################################### |
248 | # Tests for $foo binop $foo # | |
249 | ############################################### | |
250 | ||
251 | # These test that binary ops call FETCH twice if the same scalar is used | |
252 | # for both operands. They also test that both return values from | |
253 | # FETCH are used. | |
254 | ||
9c9a2500 DM |
255 | my %mutators = map { ($_ => 1) } qw(. + - * / % ** << >> & | ^); |
256 | ||
257 | ||
258 | sub _bin_test { | |
259 | my $int = shift; | |
b04496fe | 260 | my $op = shift; |
9c9a2500 DM |
261 | my $exp = pop; |
262 | my @fetches = @_; | |
263 | ||
264 | $int = $int ? 'use integer; ' : ''; | |
265 | ||
266 | tie my $var, "main", @fetches; | |
267 | is(eval "$int\$var $op \$var", $exp, "retval of $int\$var $op \$var"); | |
268 | check_count "$int$op", 2; | |
269 | ||
270 | return unless $mutators{$op}; | |
271 | ||
272 | tie my $var2, "main", @fetches; | |
273 | is(eval "$int \$var2 $op= \$var2", $exp, "retval of $int \$var2 $op= \$var2"); | |
274 | check_count "$int$op=", 3; | |
275 | } | |
276 | ||
277 | sub bin_test { | |
278 | _bin_test(0, @_); | |
b04496fe | 279 | } |
9c9a2500 | 280 | |
b04496fe | 281 | sub bin_int_test { |
9c9a2500 | 282 | _bin_test(1, @_); |
b04496fe FC |
283 | } |
284 | ||
75ea7a12 FC |
285 | bin_test '**', 2, 3, 8; |
286 | bin_test '*' , 2, 3, 6; | |
287 | bin_test '/' , 10, 2, 5; | |
288 | bin_test '%' , 11, 2, 1; | |
289 | bin_test 'x' , 11, 2, 1111; | |
290 | bin_test '-' , 11, 2, 9; | |
291 | bin_test '<<', 11, 2, 44; | |
292 | bin_test '>>', 44, 2, 11; | |
293 | bin_test '<' , 1, 2, 1; | |
294 | bin_test '>' , 44, 2, 1; | |
295 | bin_test '<=', 44, 2, ""; | |
296 | bin_test '>=', 1, 2, ""; | |
297 | bin_test '!=', 1, 2, 1; | |
298 | bin_test '<=>', 1, 2, -1; | |
299 | bin_test 'le', 4, 2, ""; | |
300 | bin_test 'lt', 1, 2, 1; | |
301 | bin_test 'gt', 4, 2, 1; | |
302 | bin_test 'ge', 1, 2, ""; | |
303 | bin_test 'eq', 1, 2, ""; | |
304 | bin_test 'ne', 1, 2, 1; | |
305 | bin_test 'cmp', 1, 2, -1; | |
306 | bin_test '&' , 1, 2, 0; | |
307 | bin_test '|' , 1, 2, 3; | |
3216d309 | 308 | bin_test '^' , 3, 5, 6; |
b04496fe | 309 | bin_test '.' , 1, 2, 12; |
7d779b23 | 310 | bin_test '==', 1, 2, ""; |
4c3ac4ba | 311 | bin_test '+' , 1, 2, 3; |
96b6b87f | 312 | bin_int_test '*' , 2, 3, 6; |
76422f81 | 313 | bin_int_test '/' , 10, 2, 5; |
96b6b87f | 314 | bin_int_test '%' , 11, 2, 1; |
e62ca0f9 FC |
315 | bin_int_test '+' , 1, 2, 3; |
316 | bin_int_test '-' , 11, 2, 9; | |
9b029393 | 317 | bin_int_test '<' , 1, 2, 1; |
fd2dbd2b | 318 | bin_int_test '>' , 44, 2, 1; |
5c7d20ff | 319 | bin_int_test '<=', 44, 2, ""; |
f2bd3a8b | 320 | bin_int_test '>=', 1, 2, ""; |
bfa9dccd | 321 | bin_int_test '==', 1, 2, ""; |
577914ca | 322 | bin_int_test '!=', 1, 2, 1; |
4cdd48d8 | 323 | bin_int_test '<=>', 1, 2, -1; |
c31c2913 FC |
324 | tie $var, "main", 1, 4; |
325 | cmp_ok(atan2($var, $var), '<', .3, 'retval of atan2 $var, $var'); | |
326 | check_count 'atan2', 2; | |
b04496fe | 327 | |
60ccc62f | 328 | __DATA__ |