feat: add limitTo as new directive

.gitignore

@@ -10,6 +10,7 @@
 **/next-env.d.ts
 **/*.d.ts
 **/.DS_Store
+**/.idea
 **/.swc/**
 
 # the built binary is downloaded into this folder during CI

crates/graphql_network_protocol/src/process_type_system_definition.rs

@@ -408,6 +408,7 @@ fn process_object_type_definition(
                 field: format!("node.as{}", object_type_definition.name.item)
                     .intern()
                     .into(),
+                limit_to: None,
             },
             parent_object_name: object_type_definition.name.item,
             description: Description(

crates/isograph_schema/src/create_additional_fields/expose_field_directive.rs

@@ -38,6 +38,7 @@
     #[serde(default)]
     pub field_map: Vec<FieldMapItem>,
     pub field: StringLiteralValue,
+    pub limit_to: Option<Vec<StringLiteralValue>>,
 }
 
 pub fn create_new_exposed_field<TNetworkProtocol: NetworkProtocol>(
@@ -52,6 +53,7 @@
         expose_as,
         field_map,
         field,
+        limit_to,
     } = &expose_field_to_insert.expose_field_directive;
 
     // HACK: we're essentially splitting the field arg by . and keeping the same

crates/tests/tests/directives_deserialization.rs

@@ -52,6 +52,7 @@ fn test_test_mutation_extension_expose_as() -> Result<(), Box<dyn Error>> {
         expose_as,
         field_map,
         field,
+        limit_to: None,
     };
 
     assert_eq!(expose_field_mutations[0], set_tagline_mutation);
@@ -72,6 +73,7 @@ fn test_test_mutation_extension_set_pet_tagline_parsing() -> Result<(), Box<dyn
         expose_as: None,
         field_map,
         field,
+        limit_to: None,
     };
 
     assert_eq!(expose_field_mutations[0], set_tagline_mutation);
@@ -92,6 +94,7 @@ fn test_mutation_extension_set_pet_bestfriend_parsing() -> Result<(), Box<dyn Er
         expose_as: None,
         field_map,
         field,
+        limit_to: None,
     };
     assert_eq!(expose_field_directives[1], set_pet_best_friend);
     Ok(())