2 # Tests counting number of FETCHes.
4 # See Bugs #76814 and #87708.
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 @{$_ [0]}}
25 sub STORE { unshift @{$_[0]}, $_[1] }
30 my $expected = shift() // 1;
31 local $::Level = $::Level + 1;
34 $expected == 1 ? "just once" :
35 $expected == 2 ? "twice" :
43 tie my $var => 'main', 1;
46 $dummy = $var ; check_count "=";
47 *dummy = $var ; check_count '*glob = $tied';
50 $dummy = +$var ; check_count "unary +";
51 $dummy = -$var ; check_count "unary -";
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 '.';
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';
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 --';
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 '<=>';
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';
96 $dummy = $var & 1 ; check_count '&';
97 $dummy = $var ^ 1 ; check_count '^';
98 $dummy = $var | 1 ; check_count '|';
99 $dummy = ~$var ; check_count '~';
102 $dummy = !$var ; check_count '!';
103 tie my $v_1, "main", 0;
104 $dummy = $v_1 || 1 ; check_count '||';
105 $dummy = ($v_1 or 1); check_count 'or';
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 '?:';
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';
122 tie my $var0, "main", \*DATA;
123 $dummy = <$var0> ; check_count '<readline>';
124 $dummy = <${var}> ; check_count '<glob>';
127 for (split //, 'rwxoRWXOezsfdpSbctugkTBMAC') {
128 no warnings 'unopened';
129 $dummy = eval "-$_ \$var"; check_count "-$_";
130 # Make $var hold a glob:
131 $var = *dummy; $dummy = $var; $count = 0;
132 $dummy = eval "-$_ \$var"; check_count "-$_ \$tied_glob";
134 $var = *dummy; $dummy = $var; $count = 0;
135 eval "\$dummy = -$_ \\\$var";
136 check_count "-$_ \\\$tied_glob";
138 $dummy = -l $var ; check_count '-l';
142 $dummy = $var =~ m/ / ; check_count 'm//';
143 $dummy = $var =~ s/ //; check_count 's///';
144 $dummy = $var ~~ 1 ; check_count '~~';
145 $dummy = $var =~ y/ //; check_count 'y///';
146 /$var/ ; check_count 'm/pattern/';
147 /$var foo/ ; check_count 'm/$tied foo/';
148 s/$var// ; check_count 's/pattern//';
149 s/$var foo// ; check_count 's/$tied foo//';
150 s/./$var/ ; check_count 's//replacement/';
153 tie my $var1 => 'main', \1;
154 $dummy = $$var1 ; check_count '${}';
155 tie my $var2 => 'main', [];
156 $dummy = @$var2 ; check_count '@{}';
157 $dummy = shift $var2 ; check_count 'shift arrayref';
158 tie my $var3 => 'main', {};
159 $dummy = %$var3 ; check_count '%{}';
160 $dummy = keys $var3 ; check_count 'keys hashref';
163 tie my $var4 => 'main', **;
164 $dummy = *$var4 ; check_count '*{}';
167 tie my $var5 => 'main', sub {1};
168 $dummy = &$var5 ; check_count '&{}';
172 tie my $var1 => 'main', 1;
173 $dummy = $$var1 ; check_count 'symbolic ${}';
174 $dummy = @$var1 ; check_count 'symbolic @{}';
175 $dummy = %$var1 ; check_count 'symbolic %{}';
176 $dummy = *$var1 ; check_count 'symbolic *{}';
178 $dummy = &$var1 ; check_count 'symbolic &{}';
180 # This test will not be a complete test if *988 has been created
181 # already. If this dies, change it to use another built-in variable.
182 # In 5.10-14, rv2gv calls get-magic more times for built-in vars, which
183 # is why we need the test this way.
184 if (exists $::{988}) {
185 die "*988 already exists. Please adjust this test"
187 tie my $var6 => main => 988;
189 readdir $var6 ; check_count 'symbolic readdir';
190 if (exists $::{973}) { # Need a different variable here
191 die "*973 already exists. Please adjust this test"
193 tie my $var7 => main => 973;
194 defined $$var7 ; check_count 'symbolic defined ${}';
197 tie my $var8 => 'main', 'main';
199 $var8->bolgy ; check_count '->method';
203 # This must be the name of an existing glob to trigger the maximum
204 # number of fetches in 5.14:
205 tie my $var9 => 'main', 'swibble';
207 use constant glumscrin => 'shreggleboughet';
208 *$var9 = \&{"glumscrin"}; check_count '*$tied = \&{"name of const"}';
211 # Functions that operate on filenames or filehandles
212 for ([chdir=>''],[chmod=>'0,'],[chown=>'0,0,'],[utime=>'0,0,'],
213 [truncate=>'',',0'],[stat=>''],[lstat=>'']) {
214 my($op,$args,$postargs) = @$_; $postargs //= '';
215 # This line makes $var8 hold a glob:
216 $var8 = *dummy; $dummy = $var8; $count = 0;
217 eval "$op $args \$var8 $postargs";
218 check_count "$op $args\$tied_glob$postargs";
219 $var8 = *dummy; $dummy = $var8; $count = 0;
220 eval "$op $args \\\$var8 $postargs";
221 check_count "$op $args\\\$tied_glob$postargs";
224 ###############################################
225 # Tests for $foo binop $foo #
226 ###############################################
228 # These test that binary ops call FETCH twice if the same scalar is used
229 # for both operands. They also test that both return values from
232 my %mutators = map { ($_ => 1) } qw(. + - * / % ** << >> & | ^);
241 $int = $int ? 'use integer; ' : '';
243 tie my $var, "main", @fetches;
244 is(eval "$int\$var $op \$var", $exp, "retval of $int\$var $op \$var");
245 check_count "$int$op", 2;
247 return unless $mutators{$op};
249 tie my $var2, "main", @fetches;
250 is(eval "$int \$var2 $op= \$var2", $exp, "retval of $int \$var2 $op= \$var2");
251 check_count "$int$op=", 3;
262 bin_test '**', 2, 3, 8;
263 bin_test '*' , 2, 3, 6;
264 bin_test '/' , 10, 2, 5;
265 bin_test '%' , 11, 2, 1;
266 bin_test 'x' , 11, 2, 1111;
267 bin_test '-' , 11, 2, 9;
268 bin_test '<<', 11, 2, 44;
269 bin_test '>>', 44, 2, 11;
270 bin_test '<' , 1, 2, 1;
271 bin_test '>' , 44, 2, 1;
272 bin_test '<=', 44, 2, "";
273 bin_test '>=', 1, 2, "";
274 bin_test '!=', 1, 2, 1;
275 bin_test '<=>', 1, 2, -1;
276 bin_test 'le', 4, 2, "";
277 bin_test 'lt', 1, 2, 1;
278 bin_test 'gt', 4, 2, 1;
279 bin_test 'ge', 1, 2, "";
280 bin_test 'eq', 1, 2, "";
281 bin_test 'ne', 1, 2, 1;
282 bin_test 'cmp', 1, 2, -1;
283 bin_test '&' , 1, 2, 0;
284 bin_test '|' , 1, 2, 3;
285 bin_test '^' , 3, 5, 6;
286 bin_test '.' , 1, 2, 12;
287 bin_test '==', 1, 2, "";
288 bin_test '+' , 1, 2, 3;
289 bin_int_test '*' , 2, 3, 6;
290 bin_int_test '/' , 10, 2, 5;
291 bin_int_test '%' , 11, 2, 1;
292 bin_int_test '+' , 1, 2, 3;
293 bin_int_test '-' , 11, 2, 9;
294 bin_int_test '<' , 1, 2, 1;
295 bin_int_test '>' , 44, 2, 1;
296 bin_int_test '<=', 44, 2, "";
297 bin_int_test '>=', 1, 2, "";
298 bin_int_test '==', 1, 2, "";
299 bin_int_test '!=', 1, 2, 1;
300 bin_int_test '<=>', 1, 2, -1;
301 tie $var, "main", 1, 4;
302 cmp_ok(atan2($var, $var), '<', .3, 'retval of atan2 $var, $var');
303 check_count 'atan2', 2;