BEGIN {
chdir 't' if -d 't';
- @INC = '../lib';
require './test.pl';
+ set_up_inc('../lib');
}
use strict;
+
+plan tests => 164;
+
+# Before loading feature.pm, test it with CORE::
+ok eval 'CORE::state $x = 1;', 'CORE::state outside of feature.pm scope';
+
+
use feature ":5.10";
-plan tests => 108;
ok( ! defined state $uninit, q(state vars are undef by default) );
$xsize = stateful_array();
is( $xsize, 1, 'uninitialized state array after one iteration' );
+sub stateful_init_array {
+ state @x = qw(a b c);
+ push @x, "x";
+ return join(",", @x);
+}
+
+is stateful_init_array(), "a,b,c,x";
+is stateful_init_array(), "a,b,c,x,x";
+is stateful_init_array(), "a,b,c,x,x,x";
+
# hash state vars
sub stateful_hash {
$xhval = stateful_hash();
is( $xhval, 1, 'uninitialized state hash after one iteration' );
+sub stateful_init_hash {
+ state %x = qw(a b c d);
+ $x{foo}++;
+ return join(",", map { ($_, $x{$_}) } sort keys %x);
+}
+
+is stateful_init_hash(), "a,b,c,d,foo,1";
+is stateful_init_hash(), "a,b,c,d,foo,2";
+is stateful_init_hash(), "a,b,c,d,foo,3";
+
+# declarations with attributes
+
+SKIP: {
+skip "no attributes in miniperl", 3, if is_miniperl;
+
+eval q{
+sub stateful_attr {
+ state $a :shared;
+ state $b :shared = 3;
+ state @c :shared;
+ state @d :shared = qw(a b c);
+ state %e :shared;
+ state %f :shared = qw(a b c d);
+ $a++;
+ $b++;
+ push @c, "x";
+ push @d, "x";
+ $e{e}++;
+ $f{e}++;
+ return join(",", $a, $b, join(":", @c), join(":", @d), join(":", %e),
+ join(":", map { ($_, $f{$_}) } sort keys %f));
+}
+};
+
+is stateful_attr(), "1,4,x,a:b:c:x,e:1,a:b:c:d:e:1";
+is stateful_attr(), "2,5,x:x,a:b:c:x:x,e:2,a:b:c:d:e:2";
+is stateful_attr(), "3,6,x:x:x,a:b:c:x:x:x,e:3,a:b:c:d:e:3";
+}
+
+
# Recursion
sub noseworth {
#
-# Check state $_
-#
-my @stones = qw [fred wilma barny betty];
-my $first = $stones [0];
-my $First = ucfirst $first;
-$_ = "bambam";
-foreach my $flint (@stones) {
- state $_ = $flint;
- is $_, $first, 'state $_';
- ok /$first/, '/.../ binds to $_';
- is ucfirst, $First, '$_ default argument';
-}
-is $_, "bambam", '$_ is still there';
-
-#
# Goto.
#
my @simpsons = qw [Homer Marge Bart Lisa Maggie];
is $simpson, 'Homer', 'goto 1';
goto again if @simpsons;
-goto Elvis;
my $vi;
{
+ goto Elvis unless $vi;
state $calvin = ++ $vi;
Elvis: state $vile = ++ $vi;
redo unless defined $calvin;
#
-# List context reassigns, but scalar doesn't.
-#
-my @swords = qw [Stormbringer Szczerbiec Grimtooth Corrougue];
-foreach my $sword (@swords) {
- state ($s1) = state $s2 = $sword;
- is $s1, $swords [0], 'mixed context';
- is $s2, $swords [0], 'mixed context';
-}
-
-
-#
# Use with given.
#
my @spam = qw [spam ham bacon beans];
foreach my $spam (@spam) {
+ no warnings 'experimental::smartmatch';
given (state $spam = $spam) {
when ($spam [0]) {ok 1, "given"}
default {ok 0, "given"}
state $x = "two";
is $x, "two", "masked"
}
+
+# normally closureless anon subs share a CV and pad. If the anon sub has a
+# state var, this would mean that it is shared. Check that this doesn't
+# happen
+
+{
+ my @f;
+ push @f, sub { state $x; ++$x } for 1..2;
+ $f[0]->() for 1..10;
+ is $f[0]->(), 11;
+ is $f[1]->(), 1;
+}
+
+# each copy of an anon sub should get its own 'once block'
+
+{
+ my $x; # used to force a closure
+ my @f;
+ push @f, sub { $x=0; state $s = $_[0]; $s } for 1..2;
+ is $f[0]->(1), 1;
+ is $f[0]->(2), 1;
+ is $f[1]->(3), 3;
+ is $f[1]->(4), 3;
+}
+
+
+
+
+foreach my $forbidden (<DATA>) {
+ SKIP: {
+ skip_if_miniperl("miniperl can't load attributes.pm", 1)
+ if $forbidden =~ /:shared/;
+
+ chomp $forbidden;
+ no strict 'vars';
+ eval $forbidden;
+ like $@,
+ qr/Initialization of state variables in list currently forbidden/,
+ "Currently forbidden: $forbidden";
+ }
+}
+
+# [perl #49522] state variable not available
+
+{
+ my @warnings;
+ local $SIG{__WARN__} = sub { push @warnings, $_[0] };
+
+ eval q{
+ use warnings;
+
+ sub f_49522 {
+ state $s = 88;
+ sub g_49522 { $s }
+ sub { $s };
+ }
+
+ sub h_49522 {
+ state $t = 99;
+ sub i_49522 {
+ sub { $t };
+ }
+ }
+ };
+ is $@, '', "eval f_49522";
+ # shouldn't be any 'not available' or 'not stay shared' warnings
+ ok !@warnings, "suppress warnings part 1 [@warnings]";
+
+ @warnings = ();
+ my $f = f_49522();
+ is $f->(), 88, "state var closure 1";
+ is g_49522(), 88, "state var closure 2";
+ ok !@warnings, "suppress warnings part 2 [@warnings]";
+
+
+ @warnings = ();
+ $f = i_49522();
+ h_49522(); # initialise $t
+ is $f->(), 99, "state var closure 3";
+ ok !@warnings, "suppress warnings part 3 [@warnings]";
+
+
+}
+
+
+# [perl #117095] state var initialisation getting skipped
+# the 'if 0' code below causes a call to op_free at compile-time,
+# which used to inadvertently mark the state var as initialised.
+
+{
+ state $f = 1;
+ foo($f) if 0; # this calls op_free on padmy($f)
+ ok(defined $f, 'state init not skipped');
+}
+
+# [perl #121134] Make sure padrange doesn't mess with these
+{
+ sub thing {
+ my $expect = shift;
+ my ($x, $y);
+ state $z;
+
+ is($z, $expect, "State variable is correct");
+
+ $z = 5;
+ }
+
+ thing(undef);
+ thing(5);
+
+ sub thing2 {
+ my $expect = shift;
+ my $x;
+ my $y;
+ state $z;
+
+ is($z, $expect, "State variable is correct");
+
+ $z = 6;
+ }
+
+ thing2(undef);
+ thing2(6);
+}
+
+# [perl #123029] regression in "state" under PERL_NO_COW
+sub rt_123029 {
+ state $s;
+ $s = 'foo'x500;
+ my $c = $s;
+ return defined $s;
+}
+ok(rt_123029(), "state variables don't surprisingly disappear when accessed");
+
+# make sure multiconcat doesn't break state
+
+for (1,2) {
+ state $s = "-$_-";
+ is($s, "-1-", "state with multiconcat pass $_");
+}
+
+__DATA__
+(state $a) = 1;
+(state @a) = 1;
+(state @a :shared) = 1;
+(state %a) = ();
+(state %a :shared) = ();
+state ($a) = 1;
+(state ($a)) = 1;
+state (@a) = 1;
+(state (@a)) = 1;
+state (@a) :shared = 1;
+(state (@a) :shared) = 1;
+state (%a) = ();
+(state (%a)) = ();
+state (%a) :shared = ();
+(state (%a) :shared) = ();
+state (undef, $a) = ();
+(state (undef, $a)) = ();
+state (undef, @a) = ();
+(state (undef, @a)) = ();
+state ($a, undef) = ();
+(state ($a, undef)) = ();
+state ($a, $b) = ();
+(state ($a, $b)) = ();
+state ($a, $b) :shared = ();
+(state ($a, $b) :shared) = ();
+state ($a, @b) = ();
+(state ($a, @b)) = ();
+state ($a, @b) :shared = ();
+(state ($a, @b) :shared) = ();
+state (@a, undef) = ();
+(state (@a, undef)) = ();
+state (@a, $b) = ();
+(state (@a, $b)) = ();
+state (@a, $b) :shared = ();
+(state (@a, $b) :shared) = ();
+state (@a, @b) = ();
+(state (@a, @b)) = ();
+state (@a, @b) :shared = ();
+(state (@a, @b) :shared) = ();
+(state $a, state $b) = ();
+(state $a, $b) = ();
+(state $a, my $b) = ();
+(state $a, state @b) = ();
+(state $a, local @b) = ();
+(state $a, undef, state $b) = ();
+state ($a, undef, $b) = ();
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