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listkids() can be static in op.c
[perl5.git] / t / op / do.t
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1#!./perl
2
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3sub foo1
4{
5d96a5e0 5 ok($_[0]);
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6 'value';
7}
8
9sub foo2
10{
6d4ff0d2 11 shift;
5d96a5e0 12 ok($_[0]);
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13 $x = 'value';
14 $x;
15}
16
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17my $test = 1;
18sub ok {
19 my($ok, $name) = @_;
20
21 # You have to do it this way or VMS will get confused.
22 printf "%s %d%s\n", $ok ? "ok" : "not ok",
23 $test,
24 defined $name ? " - $name" : '';
25
26 printf "# Failed test at line %d\n", (caller)[2] unless $ok;
27
28 $test++;
29 return $ok;
30}
31
e91684bf 32print "1..32\n";
8d063cd8 33
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34# Test do &sub and proper @_ handling.
35$_[0] = 0;
36$result = do foo1(1);
8d063cd8 37
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38ok( $result eq 'value', ":$result: eq :value:" );
39ok( $_[0] == 0 );
8d063cd8 40
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41$_[0] = 0;
42$result = do foo2(0,1,0);
43ok( $result eq 'value', ":$result: eq :value:" );
44ok( $_[0] == 0 );
45
46$result = do{ ok 1; 'value';};
47ok( $result eq 'value', ":$result: eq :value:" );
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48
49sub blather {
5d96a5e0 50 ok 1 foreach @_;
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51}
52
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53do blather("ayep","sho nuff");
54@x = ("jeepers", "okydoke");
55@y = ("uhhuh", "yeppers");
56do blather(@x,"noofie",@y);
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57
58unshift @INC, '.';
59
60if (open(DO, ">$$.16")) {
5d96a5e0 61 print DO "ok(1, 'do in scalar context') if defined wantarray && not wantarray\n";
d1e4d418 62 close DO or die "Could not close: $!";
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63}
64
e81465be 65my $a = do "$$.16"; die $@ if $@;
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66
67if (open(DO, ">$$.17")) {
5d96a5e0 68 print DO "ok(1, 'do in list context') if defined wantarray && wantarray\n";
d1e4d418 69 close DO or die "Could not close: $!";
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70}
71
e81465be 72my @a = do "$$.17"; die $@ if $@;
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73
74if (open(DO, ">$$.18")) {
5d96a5e0 75 print DO "ok(1, 'do in void context') if not defined wantarray\n";
d1e4d418 76 close DO or die "Could not close: $!";
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77}
78
e81465be 79do "$$.18"; die $@ if $@;
df739378 80
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81# bug ID 20010920.007
82eval qq{ do qq(a file that does not exist); };
d1e4d418 83ok( !$@, "do on a non-existing file, first try" );
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84
85eval qq{ do uc qq(a file that does not exist); };
d1e4d418 86ok( !$@, "do on a non-existing file, second try" );
5d96a5e0 87
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88# 6 must be interpreted as a file name here
89ok( (!defined do 6) && $!, "'do 6' : $!" );
90
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91# [perl #19545]
92push @t, ($u = (do {} . "This should be pushed."));
93ok( $#t == 0, "empty do result value" );
94
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95$zok = '';
96$owww = do { 1 if $zok };
97ok( $owww eq '', 'last is unless' );
98$owww = do { 2 unless not $zok };
99ok( $owww == 1, 'last is if not' );
100
101$zok = 'swish';
102$owww = do { 3 unless $zok };
103ok( $owww eq 'swish', 'last is unless' );
104$owww = do { 4 if not $zok };
105ok( $owww eq '', 'last is if not' );
106
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107# [perl #38809]
108@a = (7, 8);
109$x = sub { do { return do { 1; @a } }; 3 }->();
110ok(defined $x && $x == 2, 'return do { } receives caller scalar context');
111@x = sub { do { return do { 1; @a } }; 3 }->();
112ok("@x" eq "7 8", 'return do { } receives caller list context');
113@a = (7, 8, 9);
114$x = sub { do { do { 1; return @a } }; 4 }->();
115ok(defined $x && $x == 3, 'do { return } receives caller scalar context');
116@x = sub { do { do { 1; return @a } }; 4 }->();
117ok("@x" eq "7 8 9", 'do { return } receives caller list context');
118@a = (7, 8, 9, 10);
119$x = sub { do { return do { 1; do { 2; @a } } }; 5 }->();
120ok(defined $x && $x == 4, 'return do { do { } } receives caller scalar context');
121@x = sub { do { return do { 1; do { 2; @a } } }; 5 }->();
122ok("@x" eq "7 8 9 10", 'return do { do { } } receives caller list context');
123
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124END {
125 1 while unlink("$$.16", "$$.17", "$$.18");
126}