Introducing a KVPair type

src/parser/parser.rs

@@ -119,6 +119,12 @@ enum RValue<'a> {
     RVLiteral(&'a str),
 }
 
+#[derive(Clone, Debug, PartialEq)]
+struct KVPair<'a> {
+    key: &'a str,
+    value: RValue<'a>,
+}
+
 /// Any element significant to dust that isn't plain text
 ///
 /// These elements are always wrapped in curly braces
@@ -179,8 +185,11 @@ fn rvalue(i: &str) -> IResult<&str, RValue> {
 }
 
 /// Parameters for a partial
-fn key_value_pair(i: &str) -> IResult<&str, (&str, RValue)> {
-    separated_pair(key, tag("="), rvalue)(i)
+fn key_value_pair(i: &str) -> IResult<&str, KVPair> {
+    map(separated_pair(key, tag("="), rvalue), |(k, v)| KVPair {
+        key: k,
+        value: v,
+    })(i)
 }
 
 /// Display a value from the context
@@ -692,7 +701,10 @@ mod tests {
                 "",
                 (
                     "foo",
-                    Some(vec![("bar", RValue::RVPath(Path { keys: vec!["baz"] }))])
+                    Some(vec![KVPair {
+                        key: "bar",
+                        value: RValue::RVPath(Path { keys: vec!["baz"] })
+                    }])
                 )
             ))
         );