From e57a189c7781822e54f643aecd49520049a8ed7a Mon Sep 17 00:00:00 2001
From: ConnorSkees <39542938+ConnorSkees@users.noreply.github.com>
Date: Mon, 3 Feb 2020 07:27:57 -0500
Subject: [PATCH] Handle quotes in feature-exists

---
 src/builtin/meta.rs |  2 +-
 tests/meta.rs       | 20 ++++++++++++++++++++
 2 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/src/builtin/meta.rs b/src/builtin/meta.rs
index 7a9eec9..0ab0ab7 100644
--- a/src/builtin/meta.rs
+++ b/src/builtin/meta.rs
@@ -16,7 +16,7 @@ pub(crate) fn register(f: &mut BTreeMap<String, Builtin>) {
     });
     decl!(f "feature-exists", |args| {
         let feature: &Value = arg!(args, 0, "feature");
-        match feature.to_string().as_str() {
+        match feature.clone().unquote().to_string().as_str() {
             // A local variable will shadow a global variable unless
             // `!global` is used.
             "global-variable-shadowing" => Some(Value::False),
diff --git a/tests/meta.rs b/tests/meta.rs
index 331c99b..8383ebd 100644
--- a/tests/meta.rs
+++ b/tests/meta.rs
@@ -18,3 +18,23 @@ test!(
     "a {\n  color: if(false, 1, 2);\n}\n",
     "a {\n  color: 2;\n}\n"
 );
+test!(
+    feature_exists_at_error_dbl_quoted,
+    "a {\n  color: feature-exists(\"at-error\")\n}\n",
+    "a {\n  color: true;\n}\n"
+);
+test!(
+    feature_exists_at_error_sgl_quoted,
+    "a {\n  color: feature-exists('at-error')\n}\n",
+    "a {\n  color: true;\n}\n"
+);
+test!(
+    feature_exists_at_error_no_quotes,
+    "a {\n  color: feature-exists(at-error)\n}\n",
+    "a {\n  color: true;\n}\n"
+);
+test!(
+    feature_exists_at_error_named_arg,
+    "a {\n  color: feature-exists($feature: at-error)\n}\n",
+    "a {\n  color: true;\n}\n"
+);