@INC = qw(../lib);
}
-require "./test.pl";
+BEGIN { require "./test.pl"; }
-plan( tests => 1 );
+plan( tests => 31 );
# Used to segfault (bug #15479)
fresh_perl_is(
{ switches => [ '-w' ] },
'delete $::{STDERR} and print a warning',
);
+
+# Used to segfault
+fresh_perl_is(
+ 'BEGIN { $::{"X::"} = 2 }',
+ '',
+ { switches => [ '-w' ] },
+ q(Insert a non-GV in a stash, under warnings 'once'),
+);
+
+ok( !defined %oedipa::maas::, q(stashes aren't defined if not used) );
+ok( !defined %{"oedipa::maas::"}, q(- work with hard refs too) );
+
+ok( defined %tyrone::slothrop::, q(stashes are defined if seen at compile time) );
+ok( defined %{"tyrone::slothrop::"}, q(- work with hard refs too) );
+
+ok( defined %bongo::shaftsbury::, q(stashes are defined if a var is seen at compile time) );
+ok( defined %{"bongo::shaftsbury::"}, q(- work with hard refs too) );
+
+package tyrone::slothrop;
+$bongo::shaftsbury::scalar = 1;
+
+package main;
+
+# Used to warn
+# Unbalanced string table refcount: (1) for "A::" during global destruction.
+# for ithreads.
+{
+ local $ENV{PERL_DESTRUCT_LEVEL} = 2;
+ fresh_perl_is(
+ 'package A; sub a { // }; %::=""',
+ '',
+ '',
+ );
+}
+
+# now tests in eval
+
+ok( !eval { defined %achtfaden:: }, 'works in eval{}' );
+ok( !eval q{ defined %schoenmaker:: }, 'works in eval("")' );
+
+# now tests with strictures
+
+{
+ use strict;
+ ok( !defined %pig::, q(referencing a non-existent stash doesn't produce stricture errors) );
+ ok( !exists $pig::{bodine}, q(referencing a non-existent stash element doesn't produce stricture errors) );
+}
+
+SKIP: {
+ eval { require B; 1 } or skip "no B", 12;
+
+ *b = \&B::svref_2object;
+ my $CVf_ANON = B::CVf_ANON();
+
+ my $sub = do {
+ package one;
+ \&{"one"};
+ };
+ delete $one::{one};
+ my $gv = b($sub)->GV;
+
+ isa_ok( $gv, "B::GV", "deleted stash entry leaves CV with valid GV");
+ is( b($sub)->CvFLAGS & $CVf_ANON, $CVf_ANON, "...and CVf_ANON set");
+ is( eval { $gv->NAME }, "__ANON__", "...and an __ANON__ name");
+ is( eval { $gv->STASH->NAME }, "one", "...but leaves stash intact");
+
+ $sub = do {
+ package two;
+ \&{"two"};
+ };
+ %two:: = ();
+ $gv = b($sub)->GV;
+
+ isa_ok( $gv, "B::GV", "cleared stash leaves CV with valid GV");
+ is( b($sub)->CvFLAGS & $CVf_ANON, $CVf_ANON, "...and CVf_ANON set");
+ is( eval { $gv->NAME }, "__ANON__", "...and an __ANON__ name");
+ is( eval { $gv->STASH->NAME }, "__ANON__", "...and an __ANON__ stash");
+
+ $sub = do {
+ package three;
+ \&{"three"};
+ };
+ undef %three::;
+ $gv = b($sub)->GV;
+
+ isa_ok( $gv, "B::GV", "undefed stash leaves CV with valid GV");
+ is( b($sub)->CvFLAGS & $CVf_ANON, $CVf_ANON, "...and CVf_ANON set");
+ is( eval { $gv->NAME }, "__ANON__", "...and an __ANON__ name");
+ is( eval { $gv->STASH->NAME }, "__ANON__", "...and an __ANON__ stash");
+
+ TODO: {
+ local $TODO = "anon CVs not accounted for yet";
+
+ my @results = split "\n", runperl
+ switches => [ "-MB", "-l" ],
+ prog => q{
+ my $sub = do {
+ package four;
+ sub { 1 };
+ };
+ %four:: = ();
+
+ my $gv = B::svref_2object($sub)->GV;
+ print $gv->isa(q/B::GV/) ? q/ok/ : q/not ok/;
+
+ my $st = eval { $gv->STASH->NAME };
+ print $st eq q/__ANON__/ ? q/ok/ : q/not ok/;
+
+ my $sub = do {
+ package five;
+ sub { 1 };
+ };
+ undef %five::;
+
+ $gv = B::svref_2object($sub)->GV;
+ print $gv->isa(q/B::GV/) ? q/ok/ : q/not ok/;
+
+ $st = eval { $gv->STASH->NAME };
+ print $st eq q/__ANON__/ ? q/ok/ : q/not ok/;
+
+ print q/done/;
+ };
+
+ ok( @results == 5 && $results[4] eq "done",
+ "anon CVs in undefed stash don't segfault" )
+ or todo_skip $TODO, 4;
+
+ ok( $results[0] eq "ok",
+ "cleared stash leaves anon CV with valid GV");
+ ok( $results[1] eq "ok",
+ "...and an __ANON__ stash");
+
+ ok( $results[2] eq "ok",
+ "undefed stash leaves anon CV with valid GV");
+ ok( $results[3] eq "ok",
+ "...and an __ANON__ stash");
+ }
+
+ # [perl #58530]
+ fresh_perl_is(
+ 'sub foo { 1 }; use overload q/""/ => \&foo;' .
+ 'delete $main::{foo}; bless []',
+ "",
+ {},
+ "no segfault with overload/deleted stash entry [#58530]",
+ );
+}