From 5f2f3db271bd8c540f892783d5f64e992947097b Mon Sep 17 00:00:00 2001
From: Marcel Greter <marcel.greter@ocbnet.ch>
Date: Mon, 16 Mar 2015 19:01:20 +0100
Subject: [PATCH] Add parsing error for empty declaration value

Fixes https://github.com/sass/libsass/issues/945
---
 parser.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/parser.cpp b/parser.cpp
index 1300185b7a..ee6383a634 100644
--- a/parser.cpp
+++ b/parser.cpp
@@ -954,7 +954,11 @@ namespace Sass {
       return new (ctx.mem) Declaration(prop->pstate(), prop, parse_static_value()/*, lex<important>()*/);
     }
     else {
-      return new (ctx.mem) Declaration(prop->pstate(), prop, parse_list()/*, lex<important>()*/);
+      Expression* list_ex = parse_list();
+      if (List* list = dynamic_cast<List*>(list_ex)) {
+        if (list->length() == 0) css_error("Invalid CSS", " after ", ": expected expression (e.g. 1px, bold), was ");
+      }
+      return new (ctx.mem) Declaration(prop->pstate(), prop, list_ex/*, lex<important>()*/);
     }
   }