fix no-unreachable-types to consider wrapped request directive argument types

.changeset/popular-radios-sleep.md

@@ -0,0 +1,5 @@
+---
+'@graphql-eslint/eslint-plugin': patch
+---
+
+fix `no-unreachable-types` to consider wrapped request directive argument types

packages/plugin/src/rules/no-unreachable-types/index.test.ts

@@ -166,6 +166,23 @@ ruleTester.run('no-unreachable-types', rule, {
         type Query
       `,
     }),
+    withSchema({
+      name: 'should ignore types from directive arguments with request locations',
+      code: /* GraphQL */ `
+        scalar Scalar1
+        scalar Scalar2
+        scalar Scalar3
+        scalar Scalar4
+        scalar Scalar5
+        scalar Scalar6
+        directive @q(arg: Scalar1) on QUERY
+        directive @w(arg: Scalar2!) on QUERY
+        directive @e(arg: [Scalar3]) on QUERY
+        directive @r(arg: [Scalar4!]) on QUERY
+        directive @t(arg: [Scalar5]!) on QUERY
+        directive @y(arg: [Scalar6!]!) on QUERY
+      `,
+    }),
   ],
   invalid: [
     withSchema({

packages/plugin/src/rules/no-unreachable-types/index.ts

@@ -2,6 +2,7 @@ import {
   ASTNode,
   ASTVisitor,
   DirectiveLocation,
+  getNamedType,
   GraphQLSchema,
   isInterfaceType,
   Kind,
@@ -102,10 +103,7 @@ function getReachableTypes(schema: GraphQLSchema): ReachableTypes {
     if (node.locations.some(location => RequestDirectiveLocations.has(location))) {
       reachableTypes.add(node.name);
       for (const arg of node.args) {
-        const argTypeName = 'name' in arg.type && arg.type.name;
-        if (argTypeName) {
-          reachableTypes.add(argTypeName);
-        }
+        reachableTypes.add(getNamedType(arg.type).name);
       }
     }
   }