#!perl -T
use strict;
use warnings;
use Test::More tests => 53 + 4;
use Scope::Upper qw<localize_delete UP HERE>;
# Arrays
our @a;
{
local @a = (4 .. 6);
{
localize_delete '@main::a', 1 => HERE;
is_deeply \@a, [ 4, undef, 6 ], 'localize_delete "@a", 1 => HERE [ok]';
}
is_deeply \@a, [ 4 .. 6 ], 'localize_delete "@a", 1 => HERE [end]';
}
{
local @a = (4 .. 6);
{
localize_delete '@main::a', 4 => HERE;
is_deeply \@a, [ 4 .. 6 ], 'localize_delete "@a", 4 (nonexistent) => HERE [ok]';
}
is_deeply \@a, [ 4 .. 6 ], 'localize_delete "@a", 4 (nonexistent) => HERE [end]';
}
{
local @a = (4 .. 6);
local $a[4] = 7;
{
localize_delete '@main::a', 4 => HERE;
is_deeply \@a, [ 4 .. 6 ], 'localize_delete "@a", 4 (exists) => HERE [ok]';
}
is_deeply \@a, [ 4 .. 6, undef, 7 ], 'localize_delete "@a", 4 (exists) => HERE [end]';
}
{
local @a = (4 .. 6);
{
localize_delete '@main::a', -2 => HERE;
is_deeply \@a, [ 4, undef, 6 ], 'localize_delete "@a", -2 => HERE [ok]';
}
is_deeply \@a, [ 4 .. 6 ], 'localize_delete "@a", -2 => HERE [end]';
}
{
local @a = (4 .. 6);
local $a[4] = 7;
{
localize_delete '@main::a', -1 => HERE;
is_deeply \@a, [ 4 .. 6 ], 'localize_delete "@a", -1 (exists) => HERE [ok]';
}
is_deeply \@a, [ 4 .. 6, undef, 7 ], 'localize_delete "@a", -1 (exists) => HERE [end]';
}
{
local @a = (4 .. 6);
{
eval { localize_delete '@main::a', -4 => HERE };
like $@, qr/Modification of non-creatable array value attempted, subscript -4/, 'localize_delete "@a", -4 (out of bounds) => HERE [ok]';
}
is_deeply \@a, [ 4 .. 6 ], 'localize_delete "@a", -4 (out of bounds) => HERE [end]';
}
{
local @a = (4 .. 6);
{
local @a = (5 .. 7);
{
localize_delete '@main::a', 1 => UP;
is_deeply \@a, [ 5 .. 7 ], 'localize_delete "@a", 1 => UP [not yet]';
}
is_deeply \@a, [ 5, undef, 7 ], 'localize_delete "@a", 1 => UP [ok]';
}
is_deeply \@a, [ 4 .. 6 ], 'localize_delete "@a", 1 => UP [end]';
}
{
local @a = (4 .. 6);
{
local @a = (5 .. 7);
{
localize_delete '@main::a', 4 => UP;
is_deeply \@a, [ 5 .. 7 ], 'localize_delete "@a", 4 (nonexistent) => UP [not yet]';
}
is_deeply \@a, [ 5 .. 7 ], 'localize_delete "@a", 4 (nonexistent) => UP [ok]';
}
is_deeply \@a, [ 4 .. 6 ], 'localize_delete "@a", 4 (nonexistent) => UP [end]';
}
{
local @a = (4 .. 6);
{
local @a = (5 .. 7);
local $a[4] = 8;
{
localize_delete '@main::a', 4 => UP;
is_deeply \@a, [ 5 .. 7, undef, 8 ], 'localize_delete "@a", 4 (exists) => UP [not yet]';
}
is_deeply \@a, [ 5 .. 7 ], 'localize_delete "@a", 4 (exists) => UP [ok]';
}
is_deeply \@a, [ 4 .. 6 ], 'localize_delete "@a", 4 (exists) => UP [end]';
}
{
{
localize_delete '@nonexistent', 2;
is_deeply eval('*nonexistent{ARRAY}'), [ ],
'localize_delete "@nonexistent", anything => HERE [ok]';
}
is_deeply eval('*nonexistent{ARRAY}'), [ ],
'localize_delete "@nonexistent", anything => HERE [end]';
}
# Hashes
our %h;
{
local %h = (a => 1, b => 2);
{
localize_delete '%main::h', 'a' => HERE;
is_deeply \%h, { b => 2 }, 'localize_delete "%h", "a" => HERE [ok]';
}
is_deeply \%h, { a => 1, b => 2 }, 'localize_delete "%h", "a" => HERE [end]';
}
{
local %h = (a => 1, b => 2);
{
localize_delete '%main::h', 'c' => HERE;
is_deeply \%h, { a => 1, b => 2 }, 'localize_delete "%h", "c" => HERE [ok]';
}
is_deeply \%h, { a => 1, b => 2 }, 'localize_delete "%h", "c" => HERE [end]';
}
{
local %h = (a => 1, b => 2);
{
local %h = (a => 3, c => 4);
{
localize_delete '%main::h', 'a' => UP;
is_deeply \%h, { a => 3, c => 4 }, 'localize_delete "%h", "a" => UP [not yet]';
}
is_deeply \%h, { c => 4 }, 'localize_delete "%h", "a" => UP [ok]';
}
is_deeply \%h, { a => 1, b => 2 }, 'localize_delete "%h", "a" => UP [end]';
}
{
{
localize_delete '%nonexistent', 'a';
is_deeply eval('*nonexistent{HASH}'), { },
'localize_delete "%nonexistent", anything => HERE [ok]';
}
is_deeply eval('*nonexistent{HASH}'), { },
'localize_delete "%nonexistent", anything => HERE [end]';
}
# Scalars
our $x = 1;
{
localize_delete '$x', 2 => HERE;
is $x, undef, 'localize_delete "$x", anything => HERE [ok]';
}
is $x, 1, 'localize_delete "$x", anything => HERE [end]';
{
{
localize_delete '$nonexistent', 2;
is eval('${*nonexistent{SCALAR}}'), undef,
'localize_delete "$nonexistent", anything => HERE [ok]';
}
is eval('${*nonexistent{SCALAR}}'), undef,
'localize_delete "$nonexistent", anything => HERE [end]';
}
# Code
sub x { 1 };
{
localize_delete '&x', 2 => HERE;
ok !exists(&x), 'localize_delete "&x", anything => HERE [ok]';
}
is x(), 1, 'localize_delete "&x", anything => HERE [end]';
{
{
localize_delete '&nonexistent', 2;
is eval('exists &nonexistent'), !1,
'localize_delete "&nonexistent", anything => HERE [ok]';
}
is eval('exists &nonexistent'), !1,
'localize_delete "&nonexistent", anything => HERE [end]';
}
{
localize_delete *x, sub { } => HERE;
is !exists(&x), 1, 'localize_delete *x, anything => HERE [ok 1]';
is !defined($x), 1, 'localize_delete *x, anything => HERE [ok 2]';
}
is x(), 1, 'localize_delete *x, anything => HERE [end 1]';
is $x, 1, 'localize_delete *x, anything => HERE [end 2]';
sub X::foo { 'X::foo' }
{
{
{
localize_delete '&X::foo', undef => UP;
is(X->foo(), 'X::foo', 'localize_delete "&X::foo", undef => UP [not yet X]');
}
ok(!X->can('foo'), 'localize_delete "&X::foo", undef => UP [ok X]');
}
is(X->foo(), 'X::foo', 'localize_delete "&X::foo", undef => UP [end X]');
}
@Y::ISA = 'X';
{
{
{
localize_delete '&X::foo', undef => UP;
is(Y->foo(), 'X::foo', 'localize_delete "&X::foo", undef => UP [not yet Y]');
}
ok(!Y->can('foo'), 'localize_delete "&X::foo", undef => UP [ok Y]');
}
is(Y->foo(), 'X::foo', 'localize_delete "&X::foo", undef => UP [end Y]');
}
{
local *Y::foo = sub { 'Y::foo' };
{
{
localize_delete '&Y::foo', undef => UP;
is(Y->foo(), 'Y::foo', 'localize_delete "&Y::foo", undef => UP [not yet]');
}
is(Y->foo(), 'X::foo', 'localize_delete "&Y::foo", undef => UP [ok]');
}
is(Y->foo(), 'Y::foo', 'localize_delete "&Y::foo", undef => UP [end]');
}
{
# Prevent 'only once' warnings
local *Y::foo = *Y::foo;
}
# Invalid
sub invalid_ref { qr/^Invalid \Q$_[0]\E reference as the localization target/ }
{
eval { localize_delete \1, 0 => HERE };
like $@, invalid_ref('SCALAR'), 'invalid localize_delete \1, 0 => HERE';
}
{
eval { localize_delete [ ], 0 => HERE };
like $@, invalid_ref('ARRAY'), 'invalid localize_delete [ ], 0 => HERE';
}
{
eval { localize_delete { }, 0 => HERE };
like $@, invalid_ref('HASH'), 'invalid localize_delete { }, 0 => HERE';
}
{
eval { localize_delete sub { }, 0 => HERE };
like $@, invalid_ref('CODE'), 'invalid localize_delete sub { }, 0 => HERE';
}