perl/perl-5.24.1-fix-special-case-recreation-of.patch
2017-01-26 13:08:18 +01:00

80 lines
2.3 KiB
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From 59ef97c7af81ab6faba749d88b558a55da41c249 Mon Sep 17 00:00:00 2001
From: Zefram <zefram@fysh.org>
Date: Sun, 22 Jan 2017 07:26:34 +0000
Subject: [PATCH] fix special-case recreation of *::
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Ported to 5.24.1:
commit 120921acd4cf27bb932a725a8cf5c957652b22eb
Author: Zefram <zefram@fysh.org>
Date: Sun Jan 22 07:26:34 2017 +0000
fix special-case recreation of *::
If *:: is called for then as a special case it is looked up as
$::{"main::"}. If $::{"main::"} has been deleted, then that hash entry
is recreated. But formerly it was only recreated as an undef scalar,
which broke things relying on glob lookup returning a glob. Now in
that special case the recreated hash entry is initialised as a glob,
and populated with the customary recursive reference to the main stash.
Fixes [perl #129869].
Signed-off-by: Petr Písař <ppisar@redhat.com>
---
gv.c | 11 +++++++++--
t/op/stash.t | 9 ++++++++-
2 files changed, 17 insertions(+), 3 deletions(-)
diff --git a/gv.c b/gv.c
index c89a3e7..3fda9b9 100644
--- a/gv.c
+++ b/gv.c
@@ -1642,8 +1642,15 @@ S_parse_gv_stash_name(pTHX_ HV **stash, GV **gv, const char **name,
name_cursor++;
*name = name_cursor+1;
if (*name == name_end) {
- if (!*gv)
- *gv = MUTABLE_GV(*hv_fetchs(PL_defstash, "main::", TRUE));
+ if (!*gv) {
+ *gv = MUTABLE_GV(*hv_fetchs(PL_defstash, "main::", TRUE));
+ if (SvTYPE(*gv) != SVt_PVGV) {
+ gv_init_pvn(*gv, PL_defstash, "main::", 6,
+ GV_ADDMULTI);
+ GvHV(*gv) =
+ MUTABLE_HV(SvREFCNT_inc_simple(PL_defstash));
+ }
+ }
return TRUE;
}
}
diff --git a/t/op/stash.t b/t/op/stash.t
index 7ac379b..d6fded4 100644
--- a/t/op/stash.t
+++ b/t/op/stash.t
@@ -7,7 +7,7 @@ BEGIN {
BEGIN { require "./test.pl"; }
-plan( tests => 54 );
+plan( tests => 55 );
# Used to segfault (bug #15479)
fresh_perl_like(
@@ -355,3 +355,10 @@ is runperl(
),
"ok\n",
"[perl #128238] non-stashes in stashes";
+
+is runperl(
+ prog => '%:: = (); print *{q|::|}, qq|\n|',
+ stderr => 1,
+ ),
+ "*main::main::\n",
+ "[perl #129869] lookup %:: by name after clearing %::";
--
2.7.4