You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
80 lines
2.0 KiB
80 lines
2.0 KiB
From 54550573a613ad20f00521880f345644a1db85cc Mon Sep 17 00:00:00 2001
|
|
From: Father Chrysostomos <sprout@cpan.org>
|
|
Date: Sun, 11 Sep 2016 21:29:56 -0700
|
|
Subject: [PATCH] Crash with splice
|
|
MIME-Version: 1.0
|
|
Content-Type: text/plain; charset=UTF-8
|
|
Content-Transfer-Encoding: 8bit
|
|
|
|
Ported to 5.24.0:
|
|
|
|
commit 92b69f6501b4d7351e09c8b1ddd386aa7e1c9cd1
|
|
Author: Father Chrysostomos <sprout@cpan.org>
|
|
Date: Sun Sep 11 21:29:56 2016 -0700
|
|
|
|
[perl #129164] Crash with splice
|
|
|
|
This fixes #129166 and #129167 as well.
|
|
|
|
splice needs to take into account that arrays can hold NULLs and
|
|
return &PL_sv_undef in those cases where it would have returned a
|
|
NULL element.
|
|
|
|
Signed-off-by: Petr Písař <ppisar@redhat.com>
|
|
---
|
|
pp.c | 4 ++++
|
|
t/op/array.t | 17 +++++++++++++++++
|
|
2 files changed, 21 insertions(+)
|
|
|
|
diff --git a/pp.c b/pp.c
|
|
index 4a2cde0..4153482 100644
|
|
--- a/pp.c
|
|
+++ b/pp.c
|
|
@@ -5488,6 +5488,8 @@ PP(pp_splice)
|
|
for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--)
|
|
SvREFCNT_dec(*dst++); /* free them now */
|
|
}
|
|
+ if (!*MARK)
|
|
+ *MARK = &PL_sv_undef;
|
|
}
|
|
AvFILLp(ary) += diff;
|
|
|
|
@@ -5584,6 +5586,8 @@ PP(pp_splice)
|
|
while (length-- > 0)
|
|
SvREFCNT_dec(tmparyval[length]);
|
|
}
|
|
+ if (!*MARK)
|
|
+ *MARK = &PL_sv_undef;
|
|
}
|
|
else
|
|
*MARK = &PL_sv_undef;
|
|
diff --git a/t/op/array.t b/t/op/array.t
|
|
index 4f0a772..fb4e8c6 100644
|
|
--- a/t/op/array.t
|
|
+++ b/t/op/array.t
|
|
@@ -555,4 +555,21 @@ is $#foo, 3, 'assigning to arylen aliased in foreach(scalar $#arylen)';
|
|
is "@a", 'a b c', 'assigning to itself';
|
|
}
|
|
|
|
+# [perl #129164], [perl #129166], [perl #129167]
|
|
+# splice() with null array entries
|
|
+# These used to crash.
|
|
+$#a = -1; $#a++;
|
|
+() = 0-splice @a; # subtract
|
|
+$#a = -1; $#a++;
|
|
+() = -splice @a; # negate
|
|
+$#a = -1; $#a++;
|
|
+() = 0+splice @a; # add
|
|
+# And with array expansion, too
|
|
+$#a = -1; $#a++;
|
|
+() = 0-splice @a, 0, 1, 1, 1;
|
|
+$#a = -1; $#a++;
|
|
+() = -splice @a, 0, 1, 1, 1;
|
|
+$#a = -1; $#a++;
|
|
+() = 0+splice @a, 0, 1, 1, 1;
|
|
+
|
|
"We're included by lib/Tie/Array/std.t so we need to return something true";
|
|
--
|
|
2.7.4
|
|
|