28 no warnings 'deprecated';
32 is($result, 'value', 'do &sub and proper @_ handling');
33 cmp_ok($_[0], '==', 0, 'do &sub and proper @_ handling');
37 no warnings 'deprecated';
38 $result = do foo2(0,1,0);
40 is($result, 'value', 'do &sub and proper @_ handling');
41 cmp_ok($_[0], '==', 0, 'do &sub and proper @_ handling');
44 $result = do{ ++$called; 'value';};
45 is($called, 1, 'do block called');
46 is($result, 'value', 'do block returns correct value');
50 push @blathered, $_ foreach @_;
54 no warnings 'deprecated';
55 do blather("ayep","sho nuff");
56 is("@blathered", "ayep sho nuff", 'blathered called with list');
60 my @x = ("jeepers", "okydoke");
61 my @y = ("uhhuh", "yeppers");
63 no warnings 'deprecated';
64 do blather(@x,"noofie",@y);
65 is("@blathered", "@x noofie @y", 'blathered called with arrays too');
70 my $file16 = tempfile();
71 if (open my $do, '>', $file16) {
72 print $do "isnt(wantarray, undef, 'do in scalar context');\n";
73 print $do "cmp_ok(wantarray, '==', 0, 'do in scalar context');\n";
74 close $do or die "Could not close: $!";
77 my $a = do $file16; die $@ if $@;
79 my $file17 = tempfile();
80 if (open my $do, '>', $file17) {
81 print $do "isnt(wantarray, undef, 'do in list context');\n";
82 print $do "cmp_ok(wantarray, '!=', 0, 'do in list context');\n";
83 close $do or die "Could not close: $!";
86 my @a = do $file17; die $@ if $@;
88 my $file18 = tempfile();
89 if (open my $do, '>', $file18) {
90 print $do "is(wantarray, undef, 'do in void context');\n";
91 close $do or die "Could not close: $!";
94 do $file18; die $@ if $@;
97 eval qq{ do qq(a file that does not exist); };
98 is($@, '', "do on a non-existing file, first try");
100 eval qq{ do uc qq(a file that does not exist); };
101 is($@, '', "do on a non-existing file, second try");
103 # 6 must be interpreted as a file name here
107 is($do6, undef, 'do 6 must be interpreted as a filename');
108 isnt($!, 0, 'and should set $!');
113 no warnings 'uninitialized';
114 push @t, ($u = (do {} . "This should be pushed."));
116 is($#t, 0, "empty do result value" );
119 my $owww = do { 1 if $zok };
120 is($owww, '', 'last is unless');
121 $owww = do { 2 unless not $zok };
122 is($owww, 1, 'last is if not');
125 $owww = do { 3 unless $zok };
126 is($owww, 'swish', 'last is unless');
127 $owww = do { 4 if not $zok };
128 is($owww, '', 'last is if not');
132 my $x = sub { do { return do { @a } }; 2 }->();
133 is($x, 1, 'return do { } receives caller scalar context');
134 @x = sub { do { return do { @a } }; 2 }->();
135 is("@x", "7", 'return do { } receives caller list context');
138 $x = sub { do { return do { 1; @a } }; 3 }->();
139 is($x, 2, 'return do { ; } receives caller scalar context');
140 @x = sub { do { return do { 1; @a } }; 3 }->();
141 is("@x", "7 8", 'return do { ; } receives caller list context');
144 $x = sub { do { return do { 1; @a, @b } }; 3 }->();
145 is($x, 5, 'return do { ; , } receives caller scalar context');
146 @x = sub { do { return do { 1; @a, @b } }; 3 }->();
147 is("@x", "7 8 11 12 13 14 15", 'return do { ; , } receives caller list context');
149 $x = sub { do { return do { 1; @a }, do { 2; @b } }; 3 }->();
150 is($x, 5, 'return do { ; }, do { ; } receives caller scalar context');
151 @x = sub { do { return do { 1; @a }, do { 2; @b } }; 3 }->();
152 is("@x", "7 8 11 12 13 14 15", 'return do { ; }, do { ; } receives caller list context');
155 $x = sub { do { do { 1; return @a } }; 4 }->();
156 is($x, 3, 'do { return } receives caller scalar context');
157 @x = sub { do { do { 1; return @a } }; 4 }->();
158 is("@x", "7 8 9", 'do { return } receives caller list context');
161 $x = sub { do { return do { 1; do { 2; @a } } }; 5 }->();
162 is($x, 4, 'return do { do { ; } } receives caller scalar context');
163 @x = sub { do { return do { 1; do { 2; @a } } }; 5 }->();
164 is("@x", "7 8 9 10", 'return do { do { ; } } receives caller list context');
166 # More tests about context propagation below return()
170 my $test_code = sub {
173 return $y ? do { my $z; @a } : do { my $z; @b };
177 (do { my$z; @b }) x $y
183 $x = $test_code->(1, 1);
184 is($x, 2, 'return $y ? do { } : do { } - scalar context 1');
185 $x = $test_code->(1, 0);
186 is($x, 3, 'return $y ? do { } : do { } - scalar context 2');
187 @x = $test_code->(1, 1);
188 is("@x", '11 12', 'return $y ? do { } : do { } - list context 1');
189 @x = $test_code->(1, 0);
190 is("@x", '21 22 23', 'return $y ? do { } : do { } - list context 2');
192 $x = $test_code->(0, 0);
193 is($x, "", 'return (do { }, (do { }) x ...) - scalar context 1');
194 $x = $test_code->(0, 1);
195 is($x, 3, 'return (do { }, (do { }) x ...) - scalar context 2');
196 @x = $test_code->(0, 0);
197 is("@x", '11 12', 'return (do { }, (do { }) x ...) - list context 1');
198 @x = $test_code->(0, 1);
199 is("@x", '11 12 21 22 23', 'return (do { }, (do { }) x ...) - list context 2');
213 (wantarray ? reverse(@a) : '99');
220 $x = $test_code->(1, 0);
221 is($x, 2, 'return do { if () { } elsif () { } else { } } - scalar 1');
222 $x = $test_code->(1, 1);
223 is($x, 3, 'return do { if () { } elsif () { } else { } } - scalar 2');
224 $x = $test_code->(1, 2);
225 is($x, 99, 'return do { if () { } elsif () { } else { } } - scalar 3');
226 @x = $test_code->(1, 0);
227 is("@x", '11 12', 'return do { if () { } elsif () { } else { } } - list 1');
228 @x = $test_code->(1, 1);
229 is("@x", '21 22 23', 'return do { if () { } elsif () { } else { } } - list 2');
230 @x = $test_code->(1, 2);
231 is("@x", '12 11', 'return do { if () { } elsif () { } else { } } - list 3');
233 # Do blocks created by constant folding
235 $x = sub { if (1) { 20 } }->();
236 is($x, 20, 'if (1) { $x } receives caller scalar context');
239 $x = sub { if (1) { @a } }->();
240 is($x, 3, 'if (1) { @a } receives caller scalar context');
241 @x = sub { if (1) { @a } }->();
242 is("@x", "21 22 23", 'if (1) { @a } receives caller list context');
244 $x = sub { if (1) { 0; 20 } }->();
245 is($x, 20, 'if (1) { ...; $x } receives caller scalar context');
248 $x = sub { if (1) { 0; @a } }->();
249 is($x, 4, 'if (1) { ...; @a } receives caller scalar context');
250 @x = sub { if (1) { 0; @a } }->();
251 is("@x", "24 25 26 27", 'if (1) { ...; @a } receives caller list context');
253 $x = sub { if (1) { 0; 20 } else{} }->();
254 is($x, 20, 'if (1) { ...; $x } else{} receives caller scalar context');
257 $x = sub { if (1) { 0; @a } else{} }->();
258 is($x, 4, 'if (1) { ...; @a } else{} receives caller scalar context');
259 @x = sub { if (1) { 0; @a } else{} }->();
260 is("@x", "24 25 26 27", 'if (1) { ...; @a } else{} receives caller list context');
262 $x = sub { if (0){} else { 0; 20 } }->();
263 is($x, 20, 'if (0){} else { ...; $x } receives caller scalar context');
266 $x = sub { if (0){} else { 0; @a } }->();
267 is($x, 4, 'if (0){} else { ...; @a } receives caller scalar context');
268 @x = sub { if (0){} else { 0; @a } }->();
269 is("@x", "24 25 26 27", 'if (0){} else { ...; @a } receives caller list context');
271 # [rt.cpan.org #72767] do "string" should not propagate warning hints
273 skip_if_miniperl("no in-memory files under miniperl", 1);
276 # Based on Eval::WithLexicals::_eval_do
278 if ($_[1] eq '/eval_do') {
279 open my $fh, '<', \$code;
288 local $SIG{__WARN__} = sub { warn shift; ++$w };
289 do '/eval_do' or die $@;
290 is($w, undef, 'do STRING does not propagate warning hints');
293 # RT#113730 - $@ should be cleared on IO error.
295 $@ = "should not see";
297 my $rv = do("some nonexistent file");
298 my $saved_error = $@;
299 my $saved_errno = $!;
300 ok(!$rv, "do returns false on io errror");
301 ok(!$saved_error, "\$\@ not set on io error");
302 ok($saved_errno, "\$! set on io error");
305 # do subname should not be do "subname"
308 sub fungi { $called .= "fungible" }
309 $@ = "scrimptious scrobblings";
311 is $called, "fungible", "do-file does not force bareword";
312 isnt $@, "scrimptious scrobblings", "It was interpreted as do-file";