From 5f94d715b21178429afb47a2b94a22cb8392daa2 Mon Sep 17 00:00:00 2001
From: Marcel Greter <marcel.greter@ocbnet.ch>
Date: Mon, 19 Mar 2018 19:54:32 +0100
Subject: [PATCH] Delay interpolated expression as in regular CSS

---
 src/debugger.hpp | 1 +
 src/parser.cpp   | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/debugger.hpp b/src/debugger.hpp
index b256c0da9..a91f619dd 100644
--- a/src/debugger.hpp
+++ b/src/debugger.hpp
@@ -629,6 +629,7 @@ inline void debug_ast(AST_Node_Ptr node, std::string ind, Env* env)
     Number_Ptr expression = Cast<Number>(node);
     std::cerr << ind << "Number " << expression;
     std::cerr << " (" << pstate_source_position(node) << ")";
+    std::cerr << " [delayed: " << expression->is_delayed() << "] ";
     std::cerr << " [interpolant: " << expression->is_interpolant() << "] ";
     std::cerr << " [" << expression->value() << expression->unit() << "]" <<
       " [hash: " << expression->hash() << "] " <<
diff --git a/src/parser.cpp b/src/parser.cpp
index 1b7dac6ac..fed4ec47e 100644
--- a/src/parser.cpp
+++ b/src/parser.cpp
@@ -1974,7 +1974,7 @@ namespace Sass {
         if (lex< re_static_expression >()) {
           ex = SASS_MEMORY_NEW(String_Constant, pstate, lexed);
         } else {
-          ex = parse_list();
+          ex = parse_list(true);
         }
         ex->is_interpolant(true);
         schema->append(ex);