From 430315ad3ab4c82f110c6f955cd030fce041669b Mon Sep 17 00:00:00 2001
From: Gleb Mazovetskiy <glex.spb@gmail.com>
Date: Tue, 20 Nov 2018 10:04:55 +0000
Subject: [PATCH] Fix memory leak in resolve_parent_refs

Fixes a memory leak introduced in
https://github.com/sass/libsass/commit/4254054dec66bb715d3a16ce3a9cf40501522773.

I do not understand why it leaks without this change but it does seem
like a bug in `SharedPtr`.

Fixes #2746
---
 src/ast.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/ast.cpp b/src/ast.cpp
index da3540a91..1fc736470 100644
--- a/src/ast.cpp
+++ b/src/ast.cpp
@@ -1243,7 +1243,8 @@ namespace Sass {
     if (!this->has_parent_ref()) return this;
     Selector_List_Ptr ss = SASS_MEMORY_NEW(Selector_List, pstate());
     for (size_t si = 0, sL = this->length(); si < sL; ++si) {
-      ss->concat(at(si)->resolve_parent_refs(pstack, traces, implicit_parent));
+      Selector_List_Obj rv = at(si)->resolve_parent_refs(pstack, traces, implicit_parent);
+      ss->concat(rv);
     }
     return ss;
   }