Support directive in complex object

Author: Sytten

derive/src/args.rs

@@ -972,6 +972,8 @@ pub struct ComplexObjectField {
     #[darling(multiple)]
     pub derived: Vec<DerivedField>,
     pub flatten: bool,
+    #[darling(default, multiple, rename = "directive")]
+    pub directives: Vec<Expr>,
 }
 
 #[derive(FromMeta, Default)]

derive/src/complex_object.rs

@@ -174,6 +174,10 @@ pub fn generate(
             let field_deprecation = gen_deprecation(&method_args.deprecation, &crate_name);
             let external = method_args.external;
             let shareable = method_args.shareable;
+            let directives = gen_directive_calls(
+                &method_args.directives,
+                TypeDirectiveLocation::FieldDefinition,
+            );
             let override_from = match &method_args.override_from {
                 Some(from) => {
                     quote! { ::std::option::Option::Some(::std::string::ToString::to_string(#from)) }
@@ -391,7 +395,7 @@ pub fn generate(
                     override_from: #override_from,
                     visible: #visible,
                     compute_complexity: #complexity,
-                    directive_invocations: ::std::vec![],
+                    directive_invocations: ::std::vec![ #(#directives),* ],
                 }));
             });
 

tests/schemas/test_fed2_compose_2.schema.graphql

@@ -15,7 +15,7 @@ type Query {
 
 type TestComplexObject @type_directive_object(description: "This is OBJECT in (Complex / Simple)Object") {
 	field: String! @type_directive_field_definition(description: "This is FIELD_DEFINITION in (Complex / Simple)Object")
-	test(arg1: String! @type_directive_argument_definition(description: "This is ARGUMENT_DEFINITION in ComplexObject.arg1"), arg2: String! @type_directive_argument_definition(description: "This is ARGUMENT_DEFINITION in ComplexObject.arg2")): String!
+	test(arg1: String! @type_directive_argument_definition(description: "This is ARGUMENT_DEFINITION in ComplexObject.arg1"), arg2: String! @type_directive_argument_definition(description: "This is ARGUMENT_DEFINITION in ComplexObject.arg2")): String! @type_directive_field_definition(description: "This is FIELD_DEFINITION in ComplexObject")
 }
 
 enum TestEnum @type_directive_enum(description: "This is ENUM in Enum") {

tests/type_directive.rs

@@ -140,6 +140,7 @@ fn test_type_directive_2() {
 
     #[ComplexObject]
     impl TestComplexObject {
+        #[graphql(directive = type_directive_field_definition::apply("This is FIELD_DEFINITION in ComplexObject".to_string()))]
         async fn test(
             &self,
             #[graphql(directive = type_directive_argument_definition::apply("This is ARGUMENT_DEFINITION in ComplexObject.arg1".to_string()))]