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#!./perl
# This file is for concatenation tests that require test.pl.
#
# t/opbasic/concat.t cannot use test.pl as
# it needs to avoid using concatenation in
# its ok() function.
BEGIN {
chdir 't' if -d 't';
require './test.pl';
set_up_inc('../lib');
}
plan 4;
# This test is in the file because overload.pm uses concatenation.
{ package o; use overload '""' => sub { $_[0][0] } }
$x = bless[chr 256],o::;
"$x";
$x->[0] = "\xff";
$x.= chr 257;
$x.= chr 257;
is $x, "\xff\x{101}\x{101}", '.= is not confused by changing utf8ness';
# RT #132385
# in multiconcat, each const TEMP used for overloading should be distinct
package RT132385 {
my @a;
use overload '.' => sub { push @a, \$_[1]; $_[0] };
my $o = bless [];
my $x = $o . "A" . $o . 'B';
::is "${$a[0]}${$a[2]}", "AB", "RT #132385";
}
# Ops should not share the same TARG between recursion levels. This may
# affect other ops, too, but concat seems more susceptible to this than
# others, since it can call itself recursively. (Where else would I put
# this test, anyway?)
fresh_perl_is <<'end', "tmp\ntmp\n", {},
sub canonpath {
my ($path) = @_;
my $node = '';
$path =~ s|/\z||;
return "$node$path";
}
{
package Path::Class::Dir;
use overload q[""] => sub { ::canonpath("tmp") };
}
print canonpath("tmp"), "\n";
print canonpath(bless {},"Path::Class::Dir"), "\n";
end
"recursive concat does not share TARGs";
# don't include the assign as part of the multiconcat if the target
# includes 'local'. This used to screw up on magic vars because the
# 'local $~' was done (thus emptying the var) before multiconcat was
# called.
{
local $~ = 'FOO';
my $s;
{
local $~ = "$~X";
$s = $~;
}
is($s, 'FOOX', 'local $magic_var = "...."');
}
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