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|
#!./perl
BEGIN {
chdir 't' if -d 't';
@INC = "../lib";
require "./test.pl";
}
plan(26);
my $tmpfile = tempfile();
open (tmp,'>', $tmpfile) || die "Can't create Cmd_while.tmp.";
print tmp "tvi925\n";
print tmp "tvi920\n";
print tmp "vt100\n";
print tmp "Amiga\n";
print tmp "paper\n";
close tmp or die "Could not close: $!";
# test "last" command
open(fh, $tmpfile) || die "Can't open Cmd_while.tmp.";
while (<fh>) {
last if /vt100/;
}
ok(!eof && /vt100/);
# test "next" command
$bad = '';
open(fh, $tmpfile) || die "Can't open Cmd_while.tmp.";
while (<fh>) {
next if /vt100/;
$bad = 1 if /vt100/;
}
ok(eof && !/vt100/ && !$bad);
# test "redo" command
$bad = '';
open(fh,$tmpfile) || die "Can't open Cmd_while.tmp.";
while (<fh>) {
if (s/vt100/VT100/g) {
s/VT100/Vt100/g;
redo;
}
$bad = 1 if /vt100/;
$bad = 1 if /VT100/;
}
ok(eof && !$bad);
# now do the same with a label and a continue block
# test "last" command
$badcont = '';
open(fh,$tmpfile) || die "Can't open Cmd_while.tmp.";
line: while (<fh>) {
if (/vt100/) {last line;}
} continue {
$badcont = 1 if /vt100/;
}
ok(!eof && /vt100/);
ok(!$badcont);
# test "next" command
$bad = '';
$badcont = 1;
open(fh,$tmpfile) || die "Can't open Cmd_while.tmp.";
entry: while (<fh>) {
next entry if /vt100/;
$bad = 1 if /vt100/;
} continue {
$badcont = '' if /vt100/;
}
ok(eof && !/vt100/ && !$bad);
ok(!$badcont);
# test "redo" command
$bad = '';
$badcont = '';
open(fh,$tmpfile) || die "Can't open Cmd_while.tmp.";
loop: while (<fh>) {
if (s/vt100/VT100/g) {
s/VT100/Vt100/g;
redo loop;
}
$bad = 1 if /vt100/;
$bad = 1 if /VT100/;
} continue {
$badcont = 1 if /vt100/;
}
ok(eof && !$bad);
ok(!$badcont);
close(fh) || die "Can't close Cmd_while.tmp.";
$i = 9;
{
$i++;
}
is($i, 10);
# Check curpm is reset when jumping out of a scope
$i = 0;
'abc' =~ /b/;
WHILE:
while (1) {
$i++;
is($` . $& . $', "abc");
{ # Localize changes to $` and friends
'end' =~ /end/;
redo WHILE if $i == 1;
next WHILE if $i == 2;
# 3 do a normal loop
last WHILE if $i == 4;
}
}
is($` . $& . $', "abc");
# check that scope cleanup happens right when there's a continue block
{
my $var = 16;
my (@got_var, @got_i);
while (my $i = ++$var) {
next if $i == 17;
last if $i > 17;
my $i = 0;
}
continue {
($got_var, $got_i) = ($var, $i);
}
is($got_var, 17);
is($got_i, 17);
}
{
my $got_l;
local $l = 18;
{
local $l = 0
}
continue {
$got_l = $l;
}
is($got_l, 18);
}
{
my $got_l;
local $l = 19;
my $x = 0;
while (!$x++) {
local $l = 0
}
continue {
$got_l = $l;
}
is($got_l, $l);
}
{
my $ok = 1;
$i = 20;
while (1) {
my $x;
$ok = 0 if defined $x;
if ($i == 21) {
next;
}
last;
}
continue {
++$i;
}
ok($ok);
}
sub save_context { $_[0] = wantarray; $_[1] }
{
my $context = -1;
my $p = sub {
my $x = 1;
while ($x--) {
save_context($context, "foo");
}
};
is(scalar($p->()), 0);
is($context, undef, "last statement in while block has 'void' context");
}
{
my $context = -1;
my $p = sub {
my $x = 1;
{
save_context($context, "foo");
}
};
is(scalar($p->()), "foo");
is($context, "", "last statement in block has 'scalar' context");
}
{
# test scope is cleaned
my $i = 0;
my @a;
while ($i++ < 2) {
my $x;
push @a, \$x;
}
ok($a[0] ne $a[1]);
}
fresh_perl_is <<'72406', "foobar\n", {},
{ package o; use overload bool => sub { die unless $::ok++; return 1 } }
use constant OK => bless [], o::;
do{print("foobar\n");}until OK;
72406
"[perl #72406] segv with do{}until CONST where const is not folded";
|
