| 1 | #!./perl |
| 2 | |
| 3 | BEGIN { |
| 4 | chdir 't' if -d 't'; |
| 5 | @INC = "../lib"; |
| 6 | require "./test.pl"; |
| 7 | } |
| 8 | |
| 9 | plan(26); |
| 10 | |
| 11 | my $tmpfile = tempfile(); |
| 12 | open (tmp,'>', $tmpfile) || die "Can't create Cmd_while.tmp."; |
| 13 | print tmp "tvi925\n"; |
| 14 | print tmp "tvi920\n"; |
| 15 | print tmp "vt100\n"; |
| 16 | print tmp "Amiga\n"; |
| 17 | print tmp "paper\n"; |
| 18 | close tmp or die "Could not close: $!"; |
| 19 | |
| 20 | # test "last" command |
| 21 | |
| 22 | open(fh, $tmpfile) || die "Can't open Cmd_while.tmp."; |
| 23 | while (<fh>) { |
| 24 | last if /vt100/; |
| 25 | } |
| 26 | ok(!eof && /vt100/); |
| 27 | |
| 28 | # test "next" command |
| 29 | |
| 30 | $bad = ''; |
| 31 | open(fh, $tmpfile) || die "Can't open Cmd_while.tmp."; |
| 32 | while (<fh>) { |
| 33 | next if /vt100/; |
| 34 | $bad = 1 if /vt100/; |
| 35 | } |
| 36 | ok(eof && !/vt100/ && !$bad); |
| 37 | |
| 38 | # test "redo" command |
| 39 | |
| 40 | $bad = ''; |
| 41 | open(fh,$tmpfile) || die "Can't open Cmd_while.tmp."; |
| 42 | while (<fh>) { |
| 43 | if (s/vt100/VT100/g) { |
| 44 | s/VT100/Vt100/g; |
| 45 | redo; |
| 46 | } |
| 47 | $bad = 1 if /vt100/; |
| 48 | $bad = 1 if /VT100/; |
| 49 | } |
| 50 | ok(eof && !$bad); |
| 51 | |
| 52 | # now do the same with a label and a continue block |
| 53 | |
| 54 | # test "last" command |
| 55 | |
| 56 | $badcont = ''; |
| 57 | open(fh,$tmpfile) || die "Can't open Cmd_while.tmp."; |
| 58 | line: while (<fh>) { |
| 59 | if (/vt100/) {last line;} |
| 60 | } continue { |
| 61 | $badcont = 1 if /vt100/; |
| 62 | } |
| 63 | ok(!eof && /vt100/); |
| 64 | ok(!$badcont); |
| 65 | |
| 66 | # test "next" command |
| 67 | |
| 68 | $bad = ''; |
| 69 | $badcont = 1; |
| 70 | open(fh,$tmpfile) || die "Can't open Cmd_while.tmp."; |
| 71 | entry: while (<fh>) { |
| 72 | next entry if /vt100/; |
| 73 | $bad = 1 if /vt100/; |
| 74 | } continue { |
| 75 | $badcont = '' if /vt100/; |
| 76 | } |
| 77 | ok(eof && !/vt100/ && !$bad); |
| 78 | ok(!$badcont); |
| 79 | |
| 80 | # test "redo" command |
| 81 | |
| 82 | $bad = ''; |
| 83 | $badcont = ''; |
| 84 | open(fh,$tmpfile) || die "Can't open Cmd_while.tmp."; |
| 85 | loop: while (<fh>) { |
| 86 | if (s/vt100/VT100/g) { |
| 87 | s/VT100/Vt100/g; |
| 88 | redo loop; |
| 89 | } |
| 90 | $bad = 1 if /vt100/; |
| 91 | $bad = 1 if /VT100/; |
| 92 | } continue { |
| 93 | $badcont = 1 if /vt100/; |
| 94 | } |
| 95 | ok(eof && !$bad); |
| 96 | ok(!$badcont); |
| 97 | |
| 98 | close(fh) || die "Can't close Cmd_while.tmp."; |
| 99 | |
| 100 | $i = 9; |
| 101 | { |
| 102 | $i++; |
| 103 | } |
| 104 | is($i, 10); |
| 105 | |
| 106 | # Check curpm is reset when jumping out of a scope |
| 107 | $i = 0; |
| 108 | 'abc' =~ /b/; |
| 109 | WHILE: |
| 110 | while (1) { |
| 111 | $i++; |
| 112 | is($` . $& . $', "abc"); |
| 113 | { # Localize changes to $` and friends |
| 114 | 'end' =~ /end/; |
| 115 | redo WHILE if $i == 1; |
| 116 | next WHILE if $i == 2; |
| 117 | # 3 do a normal loop |
| 118 | last WHILE if $i == 4; |
| 119 | } |
| 120 | } |
| 121 | is($` . $& . $', "abc"); |
| 122 | |
| 123 | # check that scope cleanup happens right when there's a continue block |
| 124 | { |
| 125 | my $var = 16; |
| 126 | my (@got_var, @got_i); |
| 127 | while (my $i = ++$var) { |
| 128 | next if $i == 17; |
| 129 | last if $i > 17; |
| 130 | my $i = 0; |
| 131 | } |
| 132 | continue { |
| 133 | ($got_var, $got_i) = ($var, $i); |
| 134 | } |
| 135 | is($got_var, 17); |
| 136 | is($got_i, 17); |
| 137 | } |
| 138 | |
| 139 | { |
| 140 | my $got_l; |
| 141 | local $l = 18; |
| 142 | { |
| 143 | local $l = 0 |
| 144 | } |
| 145 | continue { |
| 146 | $got_l = $l; |
| 147 | } |
| 148 | is($got_l, 18); |
| 149 | } |
| 150 | |
| 151 | { |
| 152 | my $got_l; |
| 153 | local $l = 19; |
| 154 | my $x = 0; |
| 155 | while (!$x++) { |
| 156 | local $l = 0 |
| 157 | } |
| 158 | continue { |
| 159 | $got_l = $l; |
| 160 | } |
| 161 | is($got_l, $l); |
| 162 | } |
| 163 | |
| 164 | { |
| 165 | my $ok = 1; |
| 166 | $i = 20; |
| 167 | while (1) { |
| 168 | my $x; |
| 169 | $ok = 0 if defined $x; |
| 170 | if ($i == 21) { |
| 171 | next; |
| 172 | } |
| 173 | last; |
| 174 | } |
| 175 | continue { |
| 176 | ++$i; |
| 177 | } |
| 178 | ok($ok); |
| 179 | } |
| 180 | |
| 181 | sub save_context { $_[0] = wantarray; $_[1] } |
| 182 | |
| 183 | { |
| 184 | my $context = -1; |
| 185 | my $p = sub { |
| 186 | my $x = 1; |
| 187 | while ($x--) { |
| 188 | save_context($context, "foo"); |
| 189 | } |
| 190 | }; |
| 191 | is(scalar($p->()), 0); |
| 192 | is($context, undef, "last statement in while block has 'void' context"); |
| 193 | } |
| 194 | |
| 195 | { |
| 196 | my $context = -1; |
| 197 | my $p = sub { |
| 198 | my $x = 1; |
| 199 | { |
| 200 | save_context($context, "foo"); |
| 201 | } |
| 202 | }; |
| 203 | is(scalar($p->()), "foo"); |
| 204 | is($context, "", "last statement in block has 'scalar' context"); |
| 205 | } |
| 206 | |
| 207 | { |
| 208 | # test scope is cleaned |
| 209 | my $i = 0; |
| 210 | my @a; |
| 211 | while ($i++ < 2) { |
| 212 | my $x; |
| 213 | push @a, \$x; |
| 214 | } |
| 215 | ok($a[0] ne $a[1]); |
| 216 | } |
| 217 | |
| 218 | fresh_perl_is <<'72406', "foobar\n", {}, |
| 219 | { package o; use overload bool => sub { die unless $::ok++; return 1 } } |
| 220 | use constant OK => bless [], o::; |
| 221 | do{print("foobar\n");}until OK; |
| 222 | 72406 |
| 223 | "[perl #72406] segv with do{}until CONST where const is not folded"; |