proper type for @each when single variable

src/atrule/each_rule.rs

@@ -39,13 +39,23 @@ impl Each {
             };
 
             if self.vars.len() == 1 {
-                scope.insert_var(
-                    &self.vars[0],
-                    Spanned {
-                        node: Value::List(this_iterator, ListSeparator::Space, Brackets::None),
-                        span: self.vars[0].span,
-                    },
-                )?;
+                if this_iterator.len() == 1 {
+                    scope.insert_var(
+                        &self.vars[0],
+                        Spanned {
+                            node: this_iterator[0].clone(),
+                            span: self.vars[0].span,
+                        },
+                    )?;
+                } else {
+                    scope.insert_var(
+                        &self.vars[0],
+                        Spanned {
+                            node: Value::List(this_iterator, ListSeparator::Space, Brackets::None),
+                            span: self.vars[0].span,
+                        },
+                    )?;
+                }
             } else {
                 for (var, val) in self.vars.clone().into_iter().zip(
                     this_iterator

tests/each.rs

@@ -43,3 +43,8 @@ test!(
     "a {\n  @each $i in (1 2 3) {\n    color: $i;\n  }\n}\n",
     "a {\n  color: 1;\n  color: 2;\n  color: 3;\n}\n"
 );
+test!(
+    type_of_each_space_separated_single_var,
+    "a {\n  @each $i in 1 2 3 {\n    color: type-of($i);\n  }\n}\n",
+    "a {\n  color: number;\n  color: number;\n  color: number;\n}\n"
+);