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authorFather Chrysostomos <sprout@cpan.org>2011-06-04 11:58:14 -0700
committerFather Chrysostomos <sprout@cpan.org>2011-06-04 14:34:30 -0700
commitfb2352ebbcdd380053ad8408a0613965b0ec2950 (patch)
tree97471c28069315b6940886ea3aa2a9355ec2bd43
parente5accad2c334d0d98a2eb0bcfa8f8363dfc3c78a (diff)
downloadperl-fb2352ebbcdd380053ad8408a0613965b0ec2950.tar.gz
Allow restricted hashes containing COWs to be cleared
-rw-r--r--dist/base/t/fields.t6
-rw-r--r--hv.c3
2 files changed, 6 insertions, 3 deletions
diff --git a/dist/base/t/fields.t b/dist/base/t/fields.t
index a3493ce2ee..d5f23b61d7 100644
--- a/dist/base/t/fields.t
+++ b/dist/base/t/fields.t
@@ -6,7 +6,7 @@ BEGIN {
}
use strict;
-use Test::More tests => 17;
+use Test::More tests => 18;
BEGIN { use_ok('fields'); }
@@ -108,8 +108,10 @@ package main;
ok(exists $x->{b}, 'x has b');
SKIP: {
- skip "This test triggers a perl bug", 1 if $] < 5.014001;
+ skip "These tests trigger a perl bug", 1 if $] < 5.014001;
$x->{a} = __PACKAGE__;
ok eval { delete $x->{a}; 1 }, 'deleting COW values';
+ $x->{a} = __PACKAGE__;
+ ok eval { %$x = (); 1 }, 'clearing a restr hash containing COWs';
}
}
diff --git a/hv.c b/hv.c
index 01ecf3972a..51c782a3bf 100644
--- a/hv.c
+++ b/hv.c
@@ -1554,7 +1554,8 @@ Perl_hv_clear(pTHX_ HV *hv)
for (; entry; entry = HeNEXT(entry)) {
/* not already placeholder */
if (HeVAL(entry) != &PL_sv_placeholder) {
- if (HeVAL(entry) && SvREADONLY(HeVAL(entry))) {
+ if (HeVAL(entry) && SvREADONLY(HeVAL(entry))
+ && !SvIsCOW(HeVAL(entry))) {
SV* const keysv = hv_iterkeysv(entry);
Perl_croak(aTHX_
"Attempt to delete readonly key '%"SVf"' from a restricted hash",