24 no warnings 'deprecated';
28 is($result, 'value', 'do &sub and proper @_ handling');
29 cmp_ok($_[0], '==', 0, 'do &sub and proper @_ handling');
33 no warnings 'deprecated';
34 $result = do foo2(0,1,0);
36 is($result, 'value', 'do &sub and proper @_ handling');
37 cmp_ok($_[0], '==', 0, 'do &sub and proper @_ handling');
40 $result = do{ ++$called; 'value';};
41 is($called, 1, 'do block called');
42 is($result, 'value', 'do block returns correct value');
46 push @blathered, $_ foreach @_;
50 no warnings 'deprecated';
51 do blather("ayep","sho nuff");
52 is("@blathered", "ayep sho nuff", 'blathered called with list');
56 my @x = ("jeepers", "okydoke");
57 my @y = ("uhhuh", "yeppers");
59 no warnings 'deprecated';
60 do blather(@x,"noofie",@y);
61 is("@blathered", "@x noofie @y", 'blathered called with arrays too');
66 my $file16 = tempfile();
67 if (open my $do, '>', $file16) {
68 print $do "isnt(wantarray, undef, 'do in scalar context');\n";
69 print $do "cmp_ok(wantarray, '==', 0, 'do in scalar context');\n";
70 close $do or die "Could not close: $!";
73 my $a = do $file16; die $@ if $@;
75 my $file17 = tempfile();
76 if (open my $do, '>', $file17) {
77 print $do "isnt(wantarray, undef, 'do in list context');\n";
78 print $do "cmp_ok(wantarray, '!=', 0, 'do in list context');\n";
79 close $do or die "Could not close: $!";
82 my @a = do $file17; die $@ if $@;
84 my $file18 = tempfile();
85 if (open my $do, '>', $file18) {
86 print $do "is(wantarray, undef, 'do in void context');\n";
87 close $do or die "Could not close: $!";
90 do $file18; die $@ if $@;
93 eval qq{ do qq(a file that does not exist); };
94 is($@, '', "do on a non-existing file, first try");
96 eval qq{ do uc qq(a file that does not exist); };
97 is($@, '', "do on a non-existing file, second try");
99 # 6 must be interpreted as a file name here
103 is($do6, undef, 'do 6 must be interpreted as a filename');
104 isnt($!, 0, 'and should set $!');
109 no warnings 'uninitialized';
110 push @t, ($u = (do {} . "This should be pushed."));
112 is($#t, 0, "empty do result value" );
115 my $owww = do { 1 if $zok };
116 is($owww, '', 'last is unless');
117 $owww = do { 2 unless not $zok };
118 is($owww, 1, 'last is if not');
121 $owww = do { 3 unless $zok };
122 is($owww, 'swish', 'last is unless');
123 $owww = do { 4 if not $zok };
124 is($owww, '', 'last is if not');
128 my $x = sub { do { return do { @a } }; 2 }->();
129 is($x, 1, 'return do { } receives caller scalar context');
130 @x = sub { do { return do { @a } }; 2 }->();
131 is("@x", "7", 'return do { } receives caller list context');
134 $x = sub { do { return do { 1; @a } }; 3 }->();
135 is($x, 2, 'return do { ; } receives caller scalar context');
136 @x = sub { do { return do { 1; @a } }; 3 }->();
137 is("@x", "7 8", 'return do { ; } receives caller list context');
140 $x = sub { do { return do { 1; @a, @b } }; 3 }->();
141 is($x, 5, 'return do { ; , } receives caller scalar context');
142 @x = sub { do { return do { 1; @a, @b } }; 3 }->();
143 is("@x", "7 8 11 12 13 14 15", 'return do { ; , } receives caller list context');
145 $x = sub { do { return do { 1; @a }, do { 2; @b } }; 3 }->();
146 is($x, 5, 'return do { ; }, do { ; } receives caller scalar context');
147 @x = sub { do { return do { 1; @a }, do { 2; @b } }; 3 }->();
148 is("@x", "7 8 11 12 13 14 15", 'return do { ; }, do { ; } receives caller list context');
151 $x = sub { do { do { 1; return @a } }; 4 }->();
152 is($x, 3, 'do { return } receives caller scalar context');
153 @x = sub { do { do { 1; return @a } }; 4 }->();
154 is("@x", "7 8 9", 'do { return } receives caller list context');
157 $x = sub { do { return do { 1; do { 2; @a } } }; 5 }->();
158 is($x, 4, 'return do { do { ; } } receives caller scalar context');
159 @x = sub { do { return do { 1; do { 2; @a } } }; 5 }->();
160 is("@x", "7 8 9 10", 'return do { do { ; } } receives caller list context');
162 # More tests about context propagation below return()
166 my $test_code = sub {
169 return $y ? do { my $z; @a } : do { my $z; @b };
173 (do { my$z; @b }) x $y
179 $x = $test_code->(1, 1);
180 is($x, 2, 'return $y ? do { } : do { } - scalar context 1');
181 $x = $test_code->(1, 0);
182 is($x, 3, 'return $y ? do { } : do { } - scalar context 2');
183 @x = $test_code->(1, 1);
184 is("@x", '11 12', 'return $y ? do { } : do { } - list context 1');
185 @x = $test_code->(1, 0);
186 is("@x", '21 22 23', 'return $y ? do { } : do { } - list context 2');
188 $x = $test_code->(0, 0);
189 is($x, "", 'return (do { }, (do { }) x ...) - scalar context 1');
190 $x = $test_code->(0, 1);
191 is($x, 3, 'return (do { }, (do { }) x ...) - scalar context 2');
192 @x = $test_code->(0, 0);
193 is("@x", '11 12', 'return (do { }, (do { }) x ...) - list context 1');
194 @x = $test_code->(0, 1);
195 is("@x", '11 12 21 22 23', 'return (do { }, (do { }) x ...) - list context 2');
209 (wantarray ? reverse(@a) : '99');
216 $x = $test_code->(1, 0);
217 is($x, 2, 'return do { if () { } elsif () { } else { } } - scalar 1');
218 $x = $test_code->(1, 1);
219 is($x, 3, 'return do { if () { } elsif () { } else { } } - scalar 2');
220 $x = $test_code->(1, 2);
221 is($x, 99, 'return do { if () { } elsif () { } else { } } - scalar 3');
222 @x = $test_code->(1, 0);
223 is("@x", '11 12', 'return do { if () { } elsif () { } else { } } - list 1');
224 @x = $test_code->(1, 1);
225 is("@x", '21 22 23', 'return do { if () { } elsif () { } else { } } - list 2');
226 @x = $test_code->(1, 2);
227 is("@x", '12 11', 'return do { if () { } elsif () { } else { } } - list 3');
229 # Do blocks created by constant folding
231 $x = sub { if (1) { 20 } }->();
232 is($x, 20, 'if (1) { $x } receives caller scalar context');
235 $x = sub { if (1) { @a } }->();
236 is($x, 3, 'if (1) { @a } receives caller scalar context');
237 @x = sub { if (1) { @a } }->();
238 is("@x", "21 22 23", 'if (1) { @a } receives caller list context');
240 $x = sub { if (1) { 0; 20 } }->();
241 is($x, 20, 'if (1) { ...; $x } receives caller scalar context');
244 $x = sub { if (1) { 0; @a } }->();
245 is($x, 4, 'if (1) { ...; @a } receives caller scalar context');
246 @x = sub { if (1) { 0; @a } }->();
247 is("@x", "24 25 26 27", 'if (1) { ...; @a } receives caller list context');
249 $x = sub { if (1) { 0; 20 } else{} }->();
250 is($x, 20, 'if (1) { ...; $x } else{} receives caller scalar context');
253 $x = sub { if (1) { 0; @a } else{} }->();
254 is($x, 4, 'if (1) { ...; @a } else{} receives caller scalar context');
255 @x = sub { if (1) { 0; @a } else{} }->();
256 is("@x", "24 25 26 27", 'if (1) { ...; @a } else{} receives caller list context');
258 $x = sub { if (0){} else { 0; 20 } }->();
259 is($x, 20, 'if (0){} else { ...; $x } receives caller scalar context');
262 $x = sub { if (0){} else { 0; @a } }->();
263 is($x, 4, 'if (0){} else { ...; @a } receives caller scalar context');
264 @x = sub { if (0){} else { 0; @a } }->();
265 is("@x", "24 25 26 27", 'if (0){} else { ...; @a } receives caller list context');