From a6b61082fe6298d24dad98770d7e9408bc6d9583 Mon Sep 17 00:00:00 2001
From: ConnorSkees <39542938+ConnorSkees@users.noreply.github.com>
Date: Mon, 20 Apr 2020 12:12:39 -0400
Subject: [PATCH] interpolation of strings in idents is literal

---
 src/utils.rs           |  7 ++++---
 src/value/mod.rs       | 12 ++++--------
 tests/interpolation.rs |  5 +++++
 3 files changed, 13 insertions(+), 11 deletions(-)

diff --git a/src/utils.rs b/src/utils.rs
index 5ab102f..f48bc74 100644
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -525,9 +525,10 @@ pub(crate) fn eat_ident<I: Iterator<Item = Token>>(
         if kind == &'{' {
             toks.next();
             text.push_str(
-                &parse_interpolation(toks, scope, super_selector)?
-                    .node
-                    .to_css_string(span)?,
+                &match parse_interpolation(toks, scope, super_selector)?.node {
+                    Value::Ident(s, ..) => s,
+                    v => v.to_css_string(span)?,
+                },
             );
         } else {
             return Err(("Expected identifier.", *pos).into());
diff --git a/src/value/mod.rs b/src/value/mod.rs
index d761bf8..eb27267 100644
--- a/src/value/mod.rs
+++ b/src/value/mod.rs
@@ -165,14 +165,10 @@ impl Value {
                 let mut buf = String::with_capacity(string.len());
                 for c in string.chars() {
                     match c {
-                        // TODO: figure out what is going on here
-                        // This is adapted from the original dart-sass
-                        // code, but in the spec tests it seems that
-                        // newlines are not actually treated like this.
-                        // '\n' => {
-                        //     buf.push(' ');
-                        //     after_newline = true;
-                        // }
+                        '\n' => {
+                            buf.push(' ');
+                            after_newline = true;
+                        }
                         ' ' => {
                             if !after_newline {
                                 buf.push(' ');
diff --git a/tests/interpolation.rs b/tests/interpolation.rs
index c51d7f2..1bfce7e 100644
--- a/tests/interpolation.rs
+++ b/tests/interpolation.rs
@@ -53,3 +53,8 @@ test!(
     "a {\n  color: \"#{#{\"\\a\"}}\";\n}\n",
     "a {\n  color: \"\\a\";\n}\n"
 );
+test!(
+    interpolated_quoted_newline,
+    "a {\n  color: #{\"\\a\"};\n}\n",
+    "a {\n  color:  ;\n}\n"
+);