Don't require () TypeInfo for schema language methods (#935)

* Don't require `()` TypeInfo for schema language methods

* Add PR to CHANGELOG.md

Co-authored-by: Christian Legnitto <[email protected]>

Author: sujayakar

juniper/CHANGELOG.md

@@ -1,6 +1,6 @@
 # master
 
-- No changes yet
+- Allow `RootNode::as_schema_language` and `RootNode::as_parser_document` for arbitrary type info ([#935](https://github.com/graphql-rust/juniper/pull/935))
 
 # [[0.15.5] 2021-05-11](https://github.com/graphql-rust/juniper/releases/tag/juniper-v0.15.5)
 

juniper/src/schema/model.rs

@@ -118,22 +118,6 @@ where
     ) -> Self {
         RootNode::new_with_info(query, mutation, subscription, (), (), ())
     }
-
-    #[cfg(feature = "schema-language")]
-    /// The schema definition as a `String` in the
-    /// [GraphQL Schema Language](https://graphql.org/learn/schema/#type-language)
-    /// format.
-    pub fn as_schema_language(&self) -> String {
-        let doc = self.as_parser_document();
-        format!("{}", doc)
-    }
-
-    #[cfg(feature = "graphql-parser-integration")]
-    /// The schema definition as a [`graphql_parser`](https://crates.io/crates/graphql-parser)
-    /// [`Document`](https://docs.rs/graphql-parser/latest/graphql_parser/schema/struct.Document.html).
-    pub fn as_parser_document(&'a self) -> Document<'a, &'a str> {
-        GraphQLParserTranslator::translate_schema(&self.schema)
-    }
 }
 
 impl<'a, S, QueryT, MutationT, SubscriptionT> RootNode<'a, QueryT, MutationT, SubscriptionT, S>
@@ -168,6 +152,22 @@ where
             subscription_info,
         }
     }
+
+    #[cfg(feature = "schema-language")]
+    /// The schema definition as a `String` in the
+    /// [GraphQL Schema Language](https://graphql.org/learn/schema/#type-language)
+    /// format.
+    pub fn as_schema_language(&self) -> String {
+        let doc = self.as_parser_document();
+        format!("{}", doc)
+    }
+
+    #[cfg(feature = "graphql-parser-integration")]
+    /// The schema definition as a [`graphql_parser`](https://crates.io/crates/graphql-parser)
+    /// [`Document`](https://docs.rs/graphql-parser/latest/graphql_parser/schema/struct.Document.html).
+    pub fn as_parser_document(&'a self) -> Document<'a, &'a str> {
+        GraphQLParserTranslator::translate_schema(&self.schema)
+    }
 }
 
 impl<'a, S> SchemaType<'a, S> {